Sorry to ask ANOTHER question..... I was reading around and it seems that some jap imports are restricted, the other night I was on the M4 and thought I would check to see if mine was
The throttle kicked out at about 120mph give or take a few mph, just no throttle at all. I heard you can get this by-passed, anyone have any advice on how to do it... is it expensive?
Adam,
Would eb the man to ask. We discovered this on teh autobahn with his. whoops.
mine does this and its definitely a UK car. is it possible its on 03 cars as well or could it be that it has been fitted by accident
i work at vauxhalls and have seen some strange things fitted to cars 'because the bit of paper on the front told them to'. fools s:roll: :roll: s:roll:
i.e alloy wheels to the front and steel to the back
sunroof without any glass
left hand drive with UK badges
I have had both pre and post face-lift cars (see my sig!) all of them UK spec cars, and have never had a problem with a speed limiter (not that I have ever tried - honest officer s:oops: :oops: s:oops: )
me too my first one lets just say it wasnt restricted
by my 53 reg will accelerate fine you to 120 in fifth s:crazyeyes: :crazyeyes: s:crazyeyes: (on a private road honest s:twisted: :twisted: s:twisted: ) and wont go any further change up to sixth and that still wont go past 120 s:? :? s:?
how should i approach this with Mr t?
as i have found they generally arent to keen on driving the car hard.
Well it should accelerate exactly as your previous one..the ratio's I believe are the same with 6th being an over-drive. TBO I wouldn't expect my car to accelerate much after 120 as a result of the gearing et al.
autoexpress says it should do MPH I'm not arsed about the nine mph but i would like to know if they have cocked up building my car
how do you check if it is restricted?
Well without diagnostic equipment, I presume the easiest, and probably most un-scientific way would be to see how fast you car will go. Watch the acceleration, if at 120 the tacho suddenly stops before your redlining, and the throttle goes dead then I would imagine there may be some electroinc intervention. If it continues to travel towards the red line then starts to slow towards the red i'd consider this its natural terminal velocity. It's difficult to say though as different manufacturers use different methods of retarding the speed.
I would imagine that the speed limiter would be part of the ECU programming, which would also have country specific fuel maps etc, which makes me think that the chances of getting a Japanese spec ECU with limiter doubtfull.
Top speed ratings are dubious to say the least..and so many factors affect them..speedo inaccuracy..wind resistance..temperature all have an influence. To go from 120 to 130 in an MR2 requires an additional 38bhp if any of the above factors are against you on the day your top speed is going to suffer!
Okay i'm spent!
Trust me, mine (and others s:wink: :wink: s:wink: ) cars accelerate way past 120, and my GPS has confirmed the true speed - it definately sounds like some kind of restriction to me. Don't forget, all '2s are made at the same factory in Japan, so it wouldn't be impossible for something 'extra' to be fitted in error.
Quote from: "adz648"me too my first one lets just say it wasnt restricted
by my 53 reg will accelerate fine you to 120 in fifth s:crazyeyes: :crazyeyes: s:crazyeyes: (on a private road honest s:twisted: :twisted: s:twisted: ) and wont go any further change up to sixth and that still wont go past 120 s:? :? s:?
how should i approach this with Mr t?
as i have found they generally arent to keen on driving the car hard.
What does the UK spec say for your car? If its more
"I was driving on the autobahn in Germany and noticed I couldnt go abouve 120mph..." s:twisted: :twisted: s:twisted:
Quote from: "Mikeharper2"if at 120 the tacho suddenly stops before your redlining, and the throttle goes dead then I would imagine there may be some electroinc intervention.
yep thats what happens with mine. Although i'm not that fussed, if it takesa alot of effort/money to correct, i'd prefer to blow my hard-earned on something else for the car, I mean, i never go that fast!
Well the Japanese are restricted to 180kmh on all cars, this is 112mph mine went a bit faster than this because of the larger wheels (rolling diameter)
The restriction on J-spec cars comes from the actual cluster (chip calculation)
To derestrict a J-spec car you have to apply a 'piggy back' chip that interupts the signal from the kmh and turning into mph thus making it restrict the car not to go over 180mph s:shock: :shock: s:shock: of course you would never get close to this (unless you are Martin).
This is a requirement at the point of SVA testing. I doubt a UK car would accidently have a J-Spec cluster installed as it would only read in kmh, it doesn't have any mph markings on it.
BTW. Your problem could be caused by having a dirty MAF, wrong tire pressures, dirty oil/filter, outside temperature, running 95 fuel etc....
hmm mine is all labeled as mph (the guy said the owner before him had the work done to convert it from kph to mph, then labeled the speedo), so im theory, I shouldnt have thing problem should I.... unless it hasnt been converted and someone has just stuck a mph badge over the kph badge
just tried again
fine all the way up to 120 in fifth then nothing i left it there for at least 30 seconds but nothing tried sixth aswell and still the same
the car is six months and 5000miles old any suggestions
so does it cut teh throttle when you hit 120 or do you just not get any faster?
<DISCLAIMER s:) :) s:) >
And the club does not condone going at these speeds!
it just seems to run out of speed at 120. seems a bit strange that it wont go any faster even if I'm going down hill
i would have thought it would go that bit faster when i change up but no go
i tried this on the abandoned runway at work 'honest officer'
generally this car feels slower than my last one but its very hard to tell. i thought it was the new gear box layout but who am i to know
roof down by any chance?
both roof up or down, wont pass 120 s:evil: :evil: s:evil:
bit noisy with the roof down s:shock: :shock: s:shock:
my old 2 was noticeably slower with the roof down i take it thats because of the extra wind resistance
Quote from: "adz648"mine does this and its definitely a UK car. is it possible its on 03 cars as well or could it be that it has been fitted by accident
Sure sounds like a speed limiter to me...I'd ask the dealer about it.
is there any way i could check before making a fool of myself at the dealer
Quote from: "adz648"is there any way i could check before making a fool of myself at the dealer
Yes, floor the gas on 5th and see if you can get above 180kmh s8) 8) s8)
Just play stupid and ask them how come you can't get past 120mph when your friends stock MR2 goes to 140mph.
anyone got any what toyota say the uk stock 2 with do top end
i think im going to have problems blaming mr t
how much does a rolling road test cost as i might have to resort to this and send them the bill if the car is faulty
Well if someone does want a de-limiter here's an example of what you need
m http://www.hksusa.com/products/?id=781 (http://www.hksusa.com/products/?id=781) m
so why do some japanese cars top out at 112mph and some at 120? my 2' a j-spec so will probably only go to 120mph, but my speedo goes all the way to 180??? s:? :? s:?
Tom, I think the 180 was supposed to be for kph.
I just checked to see if mine was labeled mph but maybe was in kph, I tailed a few cars into some 30mph and 50mph Gatso's and the speeds seem right, so how come mine is cutting up at 115-120 mph on uh.... my private runway s:) :) s:) wierd s:( :( s:(
Anyone know the correct part number for the SLD for a US spec 2?
AFAIK, the limiter is at 180kmh in most japanese vehicles, that's about 112mph real speed. It might easily be 120mph on the speedo though. And if you change your wheels to non-stock size, the limiter has no idea about real speed anymore.
Could've sworn that Jap cars were limited to 118... If 112 is right then my speedo overreads by a hell of a lot!
FWIW, at an indicated 125 there's bugger all left in the car anyhow. Hardly worth the bother IMO.
Quote from: "juansolo"Could've sworn that Jap cars were limited to 118... If 112 is right then my speedo overreads by a hell of a lot!
Definitely 112Mph.. And overreading by 5-6mph at that speed sounds about right - mine overreads (vs. my GPS) by 5mph across the scale, as do most peoples I believe..
Quote from: "Liz"<DISCLAIMER s:) :) s:) >
And the club does not condone going at these speeds!
Absolutely right. There's a time and a place and 120mph on the M4 or any other public UK road is not it...really it isn't. s:? :? s:?
ive heard the manufactures put them out by +5/10% on purpose for some legal reason so you cant sue them?
Mine has a little sticker over the top of the KPH text which i asssume all j-pec vehicles are
I have a j-spec 2 and know that the limiter was removed when converting the car from kph to mph!
Quote from: "Tomr2"ive heard the manufactures put them out by +5/10% on purpose for some legal reason so you cant sue them?
I don't think you can sue them for that, we're not in US! s:lol: :lol: s:lol:
But yes, the speedo has to show the real speed or more. Always. It cannot ever show less than real speed. That's why most (if not all) manufacturers make it show a bit more on purpose.
The J-Spec MR2's are limited to 114MPH. Mine was, i checked to see f it had been removed s:wink: :wink: s:wink: and got 131 MPH! The limit was the fact the revometer hit the red line in 5th gear (i dont have a 6th gear).
FYI i have a performance exhaust and filter but dotn think it would allow 10mph increased top speed over the unmodified, especially if that would require 38more bhp s:shock: :shock: s:shock:
I would say conditions were favourable s:wink: :wink: s:wink:
You can get the limiter removed, or be thankful it is preventing you from doing something dumb s:? :? s:?
how often does anyone go over 100mph anyway, ok maybe in germany but then the car is doing silly revs then and really guzzling your fuel. I dont think (in this country anyway) your insurance covers you for over 100mph
Certain policies do when it's an officially organised track or airfield day s:) :) s:)
Quote from: "vibratingsky"The J-Spec MR2's are limited to 114MPH. Mine was, i checked to see f it had been removed s:wink: :wink: s:wink: and got 131 MPH! The limit was the fact the revometer hit the red line in 5th gear (i dont have a 6th gear).
Do I take it the j-spec gearbox is the same as the US then and only Europe has the longer gears? Anyone?
only got my 2 at the weekend (is a j-spec) and was redlining it a bit today s:twisted: :twisted: s:twisted: and noticed that 2nd gear only took it to 59mph - that means i have to change up to third to get my 0-60 time which stinks.
Are the ratios longer for uk model?
Think your right Martin. It helps for acceleration, but sucks at top end...... Which would you rather have?
Think a test for the library is needed, i'm willing to test mine for results.
Quote from: "adz648"anyone got any what toyota say the uk stock 2 with do top end
i think I'm going to have problems blaming mr t
how much does a rolling road test cost as i might have to resort to this and send them the bill if the car is faulty
I have a 2003 with a tte exhaust. It went to 220kh on 6 gear. After gutting the pre-cats, it goes to 235k/h.
To see if you have a restrictor, just try the car full throttle in an inclined highway, going down, obviously s:wink: :wink: s:wink:
Please note - MR2 ROC does not advocate the breaking of speed limits. If you need to exceed the speed limit then we advise you do this on a rolling road, at a track, at an airfield, on private land (where you have the owners permission), or on roads with no speed limits. In addition, MR2 ROC does not advocate the 'testing' of vehicles on public roads.
Quote from: "pp"Quote from: "adz648"anyone got any what toyota say the uk stock 2 with do top end
i think I'm going to have problems blaming mr t
how much does a rolling road test cost as i might have to resort to this and send them the bill if the car is faulty
I have a 2003 with a tte exhaust. It went to 220kh on 6 gear. After gutting the pre-cats, it goes to 235k/h.
To see if you have a restrictor, just try the car full throttle in an inclined highway, going down, obviously s:wink: :wink: s:wink:
you can add as mucg power as you like. ultimately it's gearing thats going to limit you.
Quote from: "markiii"Quote from: "pp"Quote from: "adz648"anyone got any what toyota say the uk stock 2 with do top end
i think I'm going to have problems blaming mr t
how much does a rolling road test cost as i might have to resort to this and send them the bill if the car is faulty
I have a 2003 with a tte exhaust. It went to 220kh on 6 gear. After gutting the pre-cats, it goes to 235k/h.
To see if you have a restrictor, just try the car full throttle in an inclined highway, going down, obviously s:wink: :wink: s:wink:
you can add as mucg power as you like. ultimately it's gearing thats going to limit you.
Sure, but with the 6sp gearbox you reach 200kh at 5000 rpm, so, if you could reach the redline in 6gear (more power needed) you could reach 260?, 270?, and if you have the power and want to go faster, you just have to put 17' weels and only then you have to change ratios, but I think that the speed the car can reach without toutching the gearbox is enough for me s:wink: :wink: s:wink:
Quote from: "markiii"you can add as mucg power as you like. ultimately it's gearing thats going to limit you.
Biggest factors are gearing, aerodynamics and power.
It's easiest example I can think of to demonstrate this is a Caterfield as they're an aerodynamic brick (designed in the 1950's remember).
What makes a Caterfield quick is it's incredible light wieght allowing you to run fairly mundane engines and go like the clappers. However a 100bhp Caterham, thought it'll get you to 100 quite sharpish, will struggle to get much higher. The first thing to do to increase top end is to remove the windscreen as this acts like a air brake and gives you around another 10 mph top speed.
But you still need a massive increase in power to bludgeon the brick through the air and get it to nigh on 150mph. Think a 130bhp hike to 230bhp in the R500 for an extra 40mph...
Gearing, as Martin says is another limiting factor. My Westfield runs a straight cut Quaife gearbox with an incredibly tall first and all the other gears all stacked very closely together. Basically this means that the top speed in 5th is limited by the redline at around 125mph. This however matches nicely with the power of the engine and the configuration of the car. Which is a nice balance but it still tops out at some circuits which can be a bit frustrating.
In fact, if you know the gear and final drive ratios I know of a program that will give you the top speeds in each gear and things like pick up rpm of the next gear. We used it to work out the ratio's we wanted in the gearbox of one of our cars. Bloody useful program.
For the 2000 (Rev1) Roadster:
Gear ratio
- 1st = 3.166
- 2nd = 1.904
- 3rd = 1.310
- 4th = 0.969
- 5th = 0.815
- Reverse = 3.250
- Differential gear ratio (final) 3.941
Max permissable speed (according to Toyota)
- 1st = 36mph
- 2nd = 60mph
- 3rd = 87mph
- 4th = 118mph
- 5th = 129mph
Trying to find the bloody program again... grr!
Edit - S'alright, I found a different one.
Can't C&P the results though or view source s:( :( s:(
The bit we're interested in though is this:
mph @ 6500rpm for a pre '03 Mr2 on standard tyres
1st - 35.6 mph
2nd - 59.1 mph
3rd - 85.9 mph
4th - 116.2 mph
5th - 138.1 mph
rev - 34.6 mph
Rev drop on shift
1st-2nd - 2591 rpm
2nd-3rd - 2028 rpm
3rd-4th - 1692 rpm
4th-5th - 1033 rpm
HOWEVER! the rev limit on the MR2 is 6750rpm, so 2nd gear should get you to 60mph s:D :D s:D
This is interesting though, keep it coming!
FYI my 131mph was at 6500rpm but the incline was downward a little, although this must be approaching the 5-gear versions highests speeds, I'd guess 135mph? even with if i had 200bhp (I guess I have 150bhp/ton with my mods).
If you gut the cats, will this invalidate my insurance? shurely this equates to a 5% power increase (serious business!)
Anyone know the ratios for a '03 6 speed?
Quote from: "vibratingsky"HOWEVER! the rev limit on the MR2 is 6750rpm
In which case @ 6750:
1st - 36.9 mph 2691 rpm drop
2nd - 61.4 mph 2106 rpm drop
3rd - 89.2 mph 1757 rpm drop
4th - 120.6 mph 1073 rpm drop
5th - 148.7 mph
rev 36 mph
Actually makes more sense as manufacturers tend to do this to optimise the 0-60 figure. Sadly this is what sells cars.
Quote from: "vibratingsky"HOWEVER! the rev limit on the MR2 is 6750rpm, so 2nd gear should get you to 60mph s:D :D s:D
This is interesting though, keep it coming!
FYI my 131mph was at 6500rpm but the incline was downward a little, although this must be approaching the 5-gear versions highests speeds, I'd guess 135mph? even with if i had 200bhp (I guess I have 150bhp/ton with my mods).
If you gut the cats, will this invalidate my insurance? shurely this equates to a 5% power increase (serious business!)
Who is going to know? You can leave everything intact; just take out the interior.
And in what regards polution, you are equal to a car with a TRD header. They don't have pre-cats.
Quote from: "pp"shurely this equates to a 5% power increase (serious business!)
Not neccessarily. Taking cats out and fitting filters does not neccessarily increase power on it's own. In fact in some circumstances it can do the opposite. Improving a cars breathing (at both ends) really needs to be done in conjunction with a mappable/piggy back ECU with set up on a rolling road to get any significant and noticable (other than making it noisier) gains.
could you work out the speeds for the MRS gearbox which i think is the same as US?
Anyone know the ratios?
Mark posted them on the bottom of this thread..
m http://www.mr2roc.org/forum/viewtopic.php?t=3079 (http://www.mr2roc.org/forum/viewtopic.php?t=3079) m
2003+ 6 speed box
mph @ 6750rpm
1st - 36.5 mph
2nd - 60.7 mph
3rd - 88.2 mph
4th - 119.3 mph
5th - 141.8 mph
6th - 159.5 mph
rpm drop on shift
1st-2nd 2691 rpm
2nd-3rd 2106 rpm
3rd-4th 1757 rpm
4th-5th 1073 rpm
5th-6th 745 rpm
Pre 2003 5 speed box
mph @ 6750rpm
1st - 36.9 mph
2nd - 61.4 mph
3rd - 89.2 mph
4th - 120.6 mph
5th - 148.7 mph
rpm drop on shift
1st-2nd - 2691 rpm
2nd-3rd - 2106 rpm
3rd-4th - 1757 rpm
4th-5th - 1073 rpm
All figures based on standard wheel and tyre sizes. Calulations made using Race Technology's Gear Calculator.
http://www.race-technology.com/WebPage2/Other/Utilities/GearCalculations/GearCalculation.html
What you have in a nutshell is the exact same ratios 1st through to 5th and the same final drive, Toyota have simply strapped another cog to it. The the small speed difference is down to the change in wheel size.
Quote from: "juansolo"What you have in a nutshell is the exact same ratios 1st through to 5th and the same final drive, Toyota have simply strapped another cog to it. The the small speed difference is down to the change in wheel size.
Like you, when I read the numbers that the ratios were all the same with an extra gear on the top.
The numbers you quote show the pre-03 reaching a higher speed in each gear than the 03-. This would make sense if the rolling radius of the 15" rears fitted to the earlier cars was greater than the 16" wheels fitted to the facelifted ones. Surely this is not correct?
Thanks,
Andy
If you look at the GTECH speed file here, it seems as though my car reaches 65 mph in 2nd, of course the GTECH is not 100% accurate..
m http://www.SpyderMagazine.com/files/MR2 ... Tspeed.jpg (http://www.spydermagazine.com/files/MR2v350v911TTspeed.jpg) m
I think the rev limiter is higher than 6750. I've done 150mph (see elsewhere for details) and wasn't quite at red line at that point.
Quote from: "mph"I think the rev limiter is higher than 6750.
That's what I thought too... but I'm not near my car to check.
Quote from: "phil4"Quote from: "mph"I think the rev limiter is higher than 6750.
That's what I thought too.
I've just been to check and the redline does start at 6750. Though I am sure the rev limiter comes on a little after this.
Quote from: "juansolo"Quote from: "pp"shurely this equates to a 5% power increase (serious business!)
Not neccessarily. Taking cats out and fitting filters does not neccessarily increase power on it's own. In fact in some circumstances it can do the opposite. Improving a cars breathing (at both ends) really needs to be done in conjunction with a mappable/piggy back ECU with set up on a rolling road to get any significant and noticable (other than making it noisier) gains.
HEY! ... s:? :? s:? I didn't say that. About the rest you are right.
But I can tell you from personal experience that if you have a Mr2 with a TTE exhaust and gut the pre-cats, you got a very noticeable increase in torque and some increase in HPs. I have recently made almost non stop 3000km with the car, only with the TTE exhaust, then gutted the pre-cats, and have done again 3000km, back home. I can guarantee you that it was like a new car, mainly in the 6 gear, that becomes a real gear, and not only an overdrive. s:P :P s:P
And I was not expecting any performance improvement, when I get ride of the pre-cats. I have done that as a preventive measure against problems in the engine. s:shock: :shock: s:shock:
Quote from: "Peter Laborne"I've just been to check and the redline does start at 6750. Though I am sure the rev limiter comes on a little after this.
I guess the limiter is at 6900rpm...I have several dynoruns where the graph cuts off between 6910-6920rpm.
Quote from: "Peter Laborne"Quote from: "phil4"Quote from: "mph"I think the rev limiter is higher than 6750.
That's what I thought too.
I've just been to check and the redline does start at 6750. Though I am sure the rev limiter comes on a little after this.
I think it comes on after 7000, not sure exactly where. I have a graph charting revs and it shows 7150 and that wasn't at the limiter. The revs are set up exactly on my GTECH incidentally.
m http://www.SpyderMagazine.com/files/revs.jpg (http://www.spydermagazine.com/files/revs.jpg) m
Quote from: "juansolo"Anyone know the ratios?
Take a look at:
m http://www.spyderchat.com/phpBB/viewtopic.php?t=144 (http://www.spyderchat.com/phpBB/viewtopic.php?t=144) m
Quote from: "MRMike"I think it comes on after 7000, not sure exactly where. I have a graph charting revs and it shows 7150 and that wasn't at the limiter.
Is that from your car...? Or from someone with PowerFC or similar that can change the limiter? There are few guys at SC who have their limiter above 7000rpm, but I'm pretty sure it's not there on a stock car.
No thats my car TEM standard bar intake/exhaust. The consensus on Spyderchat seems to be 7000 rpm cut off, is the fuel cut off the same in all gears? RPM peak in 2nd seems to be bang on 7000rpm. Though i can't imagine why they would have a longer limiter in first?
Quote from: "MRMike"No thats my car TEM standard bar intake/exhaust. The consensus on Spyderchat seems to be 7000 rpm cut off, is the fuel cut off the same in all gears? RPM peak in 2nd seems to be bang on 7000rpm. Though i can't imagine why they would have a longer limiter in first?
Maybe it takes a while for the limiter to kick in...? It doesn't take that long to go from 6900rpm to 7100rpm on 1st s8) 8) s8)
The dyno runs I mentioned earlier are probably done on 4th...
Yeah that could possibly be it..like you say in each subsequent gear the revs will travel slower.
It's a simple fuel cut off as well isn't as opposed to an electronic limiter, so you could go effectively go over slightly?
Quote from: "pp"Quote from: "juansolo"Quote from: "pp"shurely this equates to a 5% power increase (serious business!)
Not neccessarily. Taking cats out and fitting filters does not neccessarily increase power on it's own. In fact in some circumstances it can do the opposite. Improving a cars breathing (at both ends) really needs to be done in conjunction with a mappable/piggy back ECU with set up on a rolling road to get any significant and noticable (other than making it noisier) gains.
HEY! ... s:? :? s:? I didn't say that. About the rest you are right.
But I can tell you from personal experience that if you have a Mr2 with a TTE exhaust and gut the pre-cats, you got a very noticeable increase in torque and some increase in HPs. I have recently made almost non stop 3000km with the car, only with the TTE exhaust, then gutted the pre-cats, and have done again 3000km, back home. I can guarantee you that it was like a new car, mainly in the 6 gear, that becomes a real gear, and not only an overdrive. s:P :P s:P
And I was not expecting any performance improvement, when I get ride of the pre-cats. I have done that as a preventive measure against problems in the engine. s:shock: :shock: s:shock:
Absolutely. It wasn't a dig. It was just a point not to believe the power claims people make for air filters and the like as for the most part they exaggerate a little. Conversely it's perfectly reasonable to see a real and noticable increase from replacing an overly restrictive stock exahaust for example.
The problem with it is you don't know who to believe. Unless you R/R the car before and after, you'll never really know. The problem then is trying to find a set of rollers ran by someone who hasn't got a vested interest in them reading a little high...
yes, yes I am deeply cynical s:wink: :wink: s:wink:
Quote from: "juansolo"Quote from: "pp"Quote from: "juansolo"Quote from: "pp"shurely this equates to a 5% power increase (serious business!)
yes, yes I am deeply cynical s:wink: :wink: s:wink:
Well, you really didn't understand me.
YOU HAVE QUOTED ME WRONG. IT WAS ANOTHER GUY THAT HAS SAID THAT THING ABOUT 5% POWER INCREASE, NOT ME.
I think you can not gain 7hp in a header. Probably you get more torque than HPs.
Quote from: "pp"I think you can not gain 7hp in a header.
I think it's possible. Check the dyno of PPE header vs stock header:
m http://www.ppeengineering.com/assets/im ... erdyno.jpg (http://www.ppeengineering.com/assets/images/headerdyno.jpg) m
5hp gain. I know it's not 7, but then again, maybe some other header might make extra 2hp. Who knows, but definitely possible.
Quote from: "Tem"Quote from: "pp"I think you can not gain 7hp in a header.
I think it's possible. Check the dyno of PPE header vs stock header:
m http://www.ppeengineering.com/assets/im ... erdyno.jpg (http://www.ppeengineering.com/assets/images/headerdyno.jpg) m
5hp gain. I know it's not 7, but then again, maybe some other header might make extra 2hp. Who knows, but definitely possible.
Well, I think that for having a significative gain, you have to have also an aftermarket exhaust.
On the other hand, if you have only an aftermarket exhaust, you have a very small gain in power, because it is already strangled in the Pre-cats.
If you get ride of the pre-cats and have a good aftermarket exhaust, then I think you got a significative gain in torque, and some more hps.
I don't pretend to understand much of the subject, but this is the only way I can explain the changes in my car's performance, and those are very real.
I have no idea who I quoted then and I apologise for thinking it was you.
I'm not getting into bhp though. Life's far too short.
just found the problem with the MPH and a little less power
a thundering great big leaf against the intake filter s:oops: :oops: s:oops:
god knows how it got there but hey its sorted now
haven't tested the top end yet i will wait till I'm on nights again
Quote from: "juansolo"I have no idea who I quoted then and I apologise for thinking it was you.
I'm not getting into bhp though. Life's far too short.
You are a nice guy... And you certainly knows what you are talking about.
Quote from: "pp"Quote from: "juansolo"I have no idea who I quoted then and I apologise for thinking it was you.
I'm not getting into bhp though. Life's far too short.
You are a nice guy... And you certainly knows what you are talking about.
s:oops: :oops: s:oops: aww shucks (though I wouldn't go
too far about knowing what I'm talking about though s:wink: :wink: s:wink: ) . I actually just read back with my brain in gear and saw who made the orginal comment... Couldn't see for lookin' before s:oops: :oops: s:oops:
Quote from: "adz648"haven't tested the top end yet i will wait till I'm on nights again
<Forum (though not this one) Mod Hat>
You should really only do top speed testing on an airfield or private land. The likes of Elvington with it's 2 mile runway would be ideal. I do warn you though that it is desperately boring after you've done it once.
Prolly not a good idea to mention any intention of going out and breaking the law (/Judas Priest) on the forum as it could come back on the club and we wouldn't want that.
</Forum (though not this one) Mod Hat>
I think the 5% thing was an over estimate anyway PP, I only used it because this is what insurance companies look out for (BHP increased in stacks of 5% according to the performance companies figures, and things that make the car more attractve to thieves like alloys or bodykits). My point was that gutting the precats may constitute as a performace modification (invalidating your insuracne) as well as make the car unroadworthy to MOT testers.
Or am i just paranoid s:shock: :shock: s:shock:
Either way like everyone else here im going to gut mine if i see a crack in em... but then an insurance company that has done it homework would save £££ if they checked the cats on every MR2 claim... in the same way that they check for chipped cars they suspect have been 'modded' without consent.
just some thoughts s:roll: :roll: s:roll:
Quote from: "juansolo"Quote from: "adz648"haven't tested the top end yet i will wait till I'm on nights again
<Forum (though not this one) Mod Hat>
You should really only do top speed testing on an airfield or private land. The likes of Elvington with it's 2 mile runway would be ideal. I do warn you though that it is desperately boring after you've done it once.
Prolly not a good idea to mention any intention of going out and breaking the law (/Judas Priest) on the forum as it could come back on the club and we wouldn't want that.
</Forum (though not this one) Mod Hat>
thats what i meant - the abandoned airstrip at work s:twisted: :twisted: s:twisted: s:wink: :wink: s:wink:
mind you i will have to keep my eye out for the resident ghost but that is a whole new post
hello everyone, I want to by a SLD but am not sure which to buy as HKS list two model types on their web site. Anyone know which to use on a 03 SMT. It is US specs if that makes any difference, By the way, I am not buying this to break any laws. I am living in Germany and from time to time I get a chance to open my 2 up on the autobahn but only when traffic is light on isolated sections of the autobahn. Thanks for any help.