MR2 Roadster Owners Club

The Workshop => Performance Related => Topic started by: Anonymous on March 18, 2005, 13:14

Title: Apexi Power Intake
Post by: Anonymous on March 18, 2005, 13:14
Just been on japanparts and submitted an inquiry on this nifty piece of kit (Your fault Kanujunkie for saying how sexy it sounded) Anyway the quote said £68, is this right?
2 years ago I managed to fit a k&n induction kit to my old Mk1 MR2 in less than 2 hours   s:D :D s:D   Just hoping that this one is gonna be just as easy.

(Dammit the weather is good out there, got no where to stick my hardtop till nxt week  s:cry: :cry: s:cry:    s:cry: :cry: s:cry:    s:cry: :cry: s:cry:    s:cry: :cry: s:cry:  )
Title:
Post by: Slacey on March 18, 2005, 13:18
Fitting isn't complicated at all, it's just the brackets that can get confusing. And yes, the price sounds about right from Japan.
Title:
Post by: Anonymous on March 18, 2005, 13:26
Thanks very much. Haven`t heard back from them yet, I know I`m being impatient, it`ll probably take a while yet.


Oh just slightly off topic... Is that avatar Josh Homme in that Queens of the stone age video?
Title:
Post by: xdesign on March 18, 2005, 13:40
Guys the APEXi intake is not one of the best options. In fact I think it's a bad choice.

I have installed a TRD, APEXi, ARC and now I have a Green.

Trust me, I know what I'm talking.
Title:
Post by: markiii on March 18, 2005, 13:42
any chance of some reasoning?
Title:
Post by: dieamond on March 18, 2005, 14:06
Quote from: "xdesign"Guys the APEXi intake is not one of the best options. In fact I think it's a bad choice.

I have installed a TRD, APEXi, ARC and now I have a Green.

Trust me, I know what I'm talking.

what's the best option in your mind ?

for me it's PPE !
Title:
Post by: Slacey on March 18, 2005, 14:22
Quote from: "FunkyMonkey"Oh just slightly off topic... Is that avatar Josh Homme in that Queens of the stone age video?
Quick OT answer - Yes!

BIG fan  s:D :D s:D  

Back OT folks!
Title:
Post by: Anonymous on March 18, 2005, 14:45
I`m just after something that sounds good and looks good too, I know there is gonna be no power gain from it. Oh also something that isn`t going to ruin the engine itself, thats the most important thing   s:) :) s:)
Title:
Post by: xdesign on March 18, 2005, 16:14
Reasoning... I can try!

The APEXi has a good sound, but the MR looses power in low PRMs. It gains some in high. Still it's in the engine bay. The air is too hot.

TRD filter in the stock box. Not doing much. No great sound, no gains/losses.

ARC: Very good filter, great quality, gains in low RPMs, gains in high PRMs, still in the engine bay, not too cool air coming in.

I installed a Green filter. It's like the PPE. It goes behind the battery and you lead a tube onto the side vent.

Amazing sound (maybe too loud for some) and great performance!
It's enough to say that the PFC measures the air temp coming in and it showed 15-20 C this time of year. Very cool! Then it's the dyno. I measured the MR and I got 125HP wheel power!!! Other mods, just a custom exhaust.

I don't have anything against APEXi, but why get only the sound when you can get the power as well?!?!?!

(http://www.spydermagazine.com/files/green_olok.jpg)
Title:
Post by: xdesign on March 18, 2005, 16:15
Quote from: "FunkyMonkey"I`m just after something that sounds good and looks good too, I know there is gonna be no power gain from it. Oh also something that isn`t going to ruin the engine itself, thats the most important thing   s:) :) s:)

No air intake will ruin the engine.
Title:
Post by: Anonymous on March 18, 2005, 16:24
Cheers xdesign, I`m gonna have a look at these green filters. Are they just as easy to install?
Title:
Post by: xdesign on March 18, 2005, 16:28
Quote from: "FunkyMonkey"Cheers xdesign, I`m gonna have a look at these green filters. Are they just as easy to install?

Similar yes. You just have to remove the battery first.

That means the the ECU is reset. And that means that when you ride your car for the first time after installing such filter, you will be dissapointed. Relax, light a cigarette and drive around. The ECU will read the new settings and then you will have a blast!!!!!!
Title:
Post by: Anonymous on March 18, 2005, 16:45
As long as its not too technical and comes with some sort of instructions i should be fine, i`m most likely to be the least mechanicaly minded person on this site i`m afraid.
Title:
Post by: markiii on March 18, 2005, 16:55
no biggy, if you want a hand shout, your not far from me.
Title:
Post by: Anonymous on March 18, 2005, 17:01
Thanks very much Mark, awfully nice of ya, i`ll keep that in mind.
Title:
Post by: Anonymous on March 18, 2005, 22:32
This might be of some intrest, Looks like the test car is a FTO.
It would be intresting if it wos a MR

 m http://www.ftooc.org/contents/pages/project/filter.htm (http://www.ftooc.org/contents/pages/project/filter.htm) m
Title:
Post by: Anonymous on March 21, 2005, 12:40
Quote from: "xdesign"... dyno. I measured the MR and I got 125HP wheel power!!! Other mods, just a custom exhaust.


Do you have the power before you installed the intake? ...so that we know what the gain was?
Title:
Post by: xdesign on March 22, 2005, 07:27
I do. I had the ARC filter on, but it was on a different dyno and not wheel power, so... not very helpful.
Title:
Post by: Anonymous on April 10, 2005, 22:31
The aim of any CAI is to draw COLD air into the engine, and with some DIY and modification, you can actually use the Apexi Power Intake and draw cold air.

Pelican Racing from the Spyderchat Forum has an interesting custom intake design on his webiste  m http://www.pelicanracing.com/prd.intake.htm (http://www.pelicanracing.com/prd.intake.htm) m

There is one other design that utilizes the stock intake system. You may wish to have a look at  m http://www.spyderchat.com/phpBB/viewtop ... ht=hai+cai (http://www.spyderchat.com/phpBB/viewtopic.php?t=10511&highlight=hai+cai) m

Both designs will increase the MPG, as well as the HP. Though I think the design with the stock intake is the only one which will lower the interior sound. Check both sites for details.
Title:
Post by: Anonymous on April 11, 2005, 19:30
The Pelican racing design does alter engine performance due to the shorter length of pipe between the throttle body and the air filter. This seems to result in a slight loss of low down torque but give a gain at the top end.

The second approach gains power throiughout the rev range but only by virtue of removing the stock restriction elbow behind the rear light. The dryer hose going from the sidevent to behind the fuse box does nothing thus you are better off simply replacing the stock elbow with a H&S inlet pipe and leaving the rest of the intake system as is. I know this because I tried it: http://www.mr2roc.org/phpBB2/viewtopic.php?t=6296&highlight=
Title:
Post by: dieamond on April 11, 2005, 20:55
the PR design depends a lot of the quality of the filter used.

for me, it's the only interesting design

either you stay stock, and go for a straight pipe (TRD or H&S style)

either you switch to a home made PR design or buy a PPE intake

Injen, AEM, Apexi and ARC design have nearly no other interest than making more noise
Title:
Post by: rtbiscuit on December 9, 2006, 14:43
is Xdesign still on here, if so

could you post me a pick of your green filter install,

which one did you buy, cos they don't seem to do one for the MR2 on their site, did you use the one from the 90-99 model, or is the kit universal?

and how much modifications did you have to do, like extending the MAF wiring etc?

also any one else reading this, PR don't seem to make theirs any more, is this right.?

and the one mentioned on spyder chat the link does not work anymore, i think the thread has gone.

does this still exsist, and any pics?

if i cant find what i like i may have to build my own custom jobbie round the Apexi.

for those of you following the PPE/apiro thread i shall keep you posted on what i do, and i people are interested i will organise a kit, depending.
Title:
Post by: northernalex on December 9, 2006, 17:05
nice one rt biscuit  s:) :) s:)   Keeping an eye on this one!
Title:
Post by: rtbiscuit on December 10, 2006, 21:59
have bought the apexi, and will be modifying it to become a sealed unit.

hopefully
Title:
Post by: xdesign on December 11, 2006, 09:14
Still here! I will take a photo and post it.
Title:
Post by: Anonymous on December 11, 2006, 13:11
I've just fitted an Apexi power intake, and from first impressions i love it! Its going on the rolling road next satudays so i'll let you know the outcome
Title:
Post by: rtbiscuit on December 11, 2006, 15:29
i'm looking at developing a carbon fibre box for the apexi, to heat sheild and feedit cold air.

if any one has any info on carbon fibering please let me know.

my main question is if i was to take a flower pot shape as a hyperthetical mould. to i lay the CB into the flower pot, or over the outside.

just need to know before i go and make the mould so i can adjust the measurements to fit.
Title:
Post by: xdesign on December 12, 2006, 10:01
I thought about doing the same thing, but from what I know now, it's not worth it.

If you have a filter behind the battery and a tube getting air from the side vent, you'll have cold air anytime. No need to spend time and money on carbon.
Title:
Post by: rtbiscuit on December 12, 2006, 19:10
just fitted the apexi, tighter than a fat man in speedos,

my initial plans for a completly enclosed system seems improbable,

but i am a creative genius, and have some tricks up my sleeve. may need to move a heat shield and see what space i have then, and toy with feeding from the side and not directly to the top centre.

nothings impossible, just need some thinking time. and a redesign before i make the mould.
Title:
Post by: northernalex on December 12, 2006, 19:14
Quote from: "rtbiscuit"just fitted the apexi, tighter than a fat man in speedos,

my initial plans for a completly enclosed system seems improbable,

but i am a creative genius, and have some tricks up my sleeve. may need to move a heat shield and see what space i have then, and toy with feeding from the side and not directly to the top centre.

nothings impossible, just need some thinking time. and a redesign before i make the mould.

noticed any improvements at all?
Title:
Post by: rtbiscuit on December 12, 2006, 19:22
revs are slightly more revvy,

little more noise, if i'm honest its difficult to notice with the h&S on.

give me a week to let it bed down, and i get back to you.

the reason i got it was to develop the heat shield. it may end up being a partial shield with air feed.

or a funky shape to incorporate the fit.

if pretty sure i can work something out, and i have some pretty wild ideas already floating while i was fitting.

if i do develop one, you have first dibs on the list if you choose to go that way, especially as i will probably make them in small batches of one or 2 as time is a constraint at the mo. until the summer six weeks off to make what ever i like.
Title:
Post by: northernalex on December 12, 2006, 19:39
sounds good to me ...  s:) :) s:)  Emanage still hasnt arived though!  s:( :( s:(

Yeah those H+S exhausts are loud arnt they  s:) :) s:)   s:twisted: :twisted: s:twisted:    s:twisted: :twisted: s:twisted:    s:twisted: :twisted: s:twisted:
Title:
Post by: aaronjb on June 2, 2007, 14:06
Bumping an old thread  s;) ;) s;)

Just finished the first-fit of my shiny new (secondhand) Apexi intake - I say first fit because I need to re-fit it again later now I've figured out where the heck all the brackets go  s:lol: :lol: s:lol:

Went out for a quick blat though - wow that makes a nice sound!  I expected a decent noise (having had cone filters on a few other cars), but with it so close to your head.. mmmmmmmm, dribblicious!


I seem to have gained a slight hesitation when I hit the throttle though - although that could be an air leak, as the o-ring on my MAF had split (it was always way too large, must have got caught last time I cleaned the MAF)  s:( :( s:(   Time to order a job lot of different sizes, I think, as the Nissan goes through them too.
Title:
Post by: Anonymous on June 7, 2007, 09:30
I have finally (after 3 months of waiting) got and fitted my Apexi Power Intake. All i can say is it sounds amazing!  s:D :D s:D  

However like Aaron i am suffereing from hesitation when i floor the throttle, almost like flat spots. I dont think it is my MAF sensor thought as was suggested. I might try an ECU reset see if that changes anything. I cant stop smiling at the noise it makes though! simply awesome  s:D :D s:D    s8) 8) s8)
Title:
Post by: aaronjb on June 7, 2007, 10:36
Interestingly enough, after a couple of days running around my flat spots have basically gone...
Title:
Post by: Anonymous on June 7, 2007, 12:26
I have noticed that they seem to be worse when the engine is cold, but if yours have gone Aaron, i will just leave it for the ecu to learn the new values and see how it goes.
Title:
Post by: red_leicester on June 8, 2007, 12:08
Always worth an ECU reset after any changes like this I think.