MR2 Roadster Owners Club

The Workshop => Performance Related => Topic started by: Anonymous on May 14, 2005, 13:55

Title: Bye Bye Understeer
Post by: Anonymous on May 14, 2005, 13:55
Finally got my TRD front tower brace delivered yesterday and have just fitted it and taken my 2 for a blast.

First impressions are pretty good.

The car it MUCH more stable on uneven roads. Before, I though there was something wrong with the car, but I think the lack of front end ridgidity was obviously causing the car to twist - sometime feeling like it was driving its self!!

The other big thing I've noticed is that there is now no understeer. The car is basically stock (minus precats   s:wink: :wink: s:wink:  ) and after performing the roundabout test, it now feels completely neutral  s:D :D s:D  .

Been looking to by a Corky anti-flex plate. Does anyone know if this will eliminate the scuttle shake?
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Post by: kanujunkie on May 14, 2005, 15:14
that and a descent set of tyres would certainly help
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Post by: mrsmr2 on May 14, 2005, 16:14
The Corky plate will reduce the shake but not eliminate it.  

What year is your 2?

Jason
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Post by: Anonymous on May 14, 2005, 16:46
year: 2002

Quotethat and a descent set of tyres would certainly help

kanujunkie - What would you class as a decent set of tyres? I see that Toyo Proxies are well spoken off.
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Post by: kanujunkie on May 14, 2005, 17:30
yep they certainly are, i'm just in the process of ordering some T1-R's at the moment
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Post by: Chris on May 14, 2005, 18:46
On a similar note, I spent around 2 hours today fitting my Cusco Front Strut Brace that I've had for months...

(http://img3014.photobox.co.uk/93480307cd4b4c1b0f616361a3398d4f7e62ee9ac83438e91112b1783f048a29ccf8a454.jpg)
(http://img3014.photobox.co.uk/487153563cd83ed97ad1eab3b221f2304e5d9835d8511fd43854bbec7ca48638a5482fe3.jpg)

This adds to my Corky flex plate and the recently added T1-Rs so it will be interesting to see how it drives now...

edit: looks like i lost most of the pics while resizing - i really must get some decent photo editing software!!
edit2: uploaded the full size ones again...
edit3: updated pics link to new hosting site..
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Post by: Anonymous on May 14, 2005, 20:26
Chris, how easy was it to cut your plastic cover. I've not attempted to do mine yet!
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Post by: Ernie Ball on May 14, 2005, 21:47
Can you open the front hatch still with that brace there?
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Post by: Anonymous on May 14, 2005, 22:15
Easy solution is just to get rid of the plastics altogether... Think of the weight saving too!   s8) 8) s8)
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Post by: kanujunkie on May 15, 2005, 04:06
Quote from: "Ernie Ball"Can you open the front hatch still with that brace there?

with the TRD one the answers no, you have to remove the hatch cover, but dont fret, nothing ever gets wet in there even with the cover off.

i know there is one type though where you can still use the hatch cover but for the life of me i cant remember which one it is  s:? :? s:?
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Post by: Anonymous on May 15, 2005, 07:51
Just ordered Corky's Anti Flexplate. Be interesting to see how it fairs.

On another note. Just bought Forza on the Xbox. You can do LOTS of customizing - Superchared MR-S anyone??
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Post by: Ernie Ball on May 15, 2005, 09:18
Quote from: "kanujunkie"
Quote from: "Ernie Ball"Can you open the front hatch still with that brace there?

know there is one type though where you can still use the hatch cover but for the life of me i cant remember which one it is  s:? :? s:?

Maybe it's that Cusco?  Looks like he's still got the hatch cover in place.
Title: Hi
Post by: Anonymous on May 16, 2005, 09:06
Quote from: "mikeep"Just ordered Corky's Anti Flexplate. Be interesting to see how it fairs.

On another note. Just bought Forza on the Xbox. You can do LOTS of customizing - Superchared MR-S anyone??

Keep me posted with your verdict please mikeep
Title: Re: Hi
Post by: kanujunkie on May 16, 2005, 09:55
Quote from: "Dominic_Gregory"Keep me posted with your verdict

just get one, it's one of the best mods you can do, stiffens the car up no end
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Post by: mrsmr2 on May 16, 2005, 11:21
I can't comment on the other mods but, the anti flex plate is definitely worth having.

Jason
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Post by: Ernie Ball on May 16, 2005, 12:41
Where can you buy one?
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Post by: Anonymous on May 16, 2005, 12:44
 m http://www.spyderchat.com/phpBB/viewtop ... ght=corkey (http://www.spyderchat.com/phpBB/viewtopic.php?t=19361&highlight=corkey) m

Get in touch with 'CeeDapp'.
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Post by: Ernie Ball on May 16, 2005, 14:07
How hard is it to install?
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Post by: Anonymous on May 16, 2005, 14:38
A strut brace at the front sounds like an essential.

The car does clearly 'bend' if you know what I mean on uneven roads. The brace seems to really stiffen the body up and is worth doing ?

What does the breast plate do exactly ?
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Post by: GSB on May 16, 2005, 14:48
Ahem...

 m http://www.mr2roc.org/phpBB2/viewtopic.php?t=7041 (http://www.mr2roc.org/phpBB2/viewtopic.php?t=7041) m

Essential on Pre'04 cars (Before Toyota added the output of a small foundry below the front suspension), Not so helpful on post '04...

Also consider TRD Member braces for Pre facelift cars, these made the biggest difference by far to my previous '01 MR2.
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Post by: Anonymous on May 16, 2005, 14:52
Quote from: "GSB"Ahem...

 m http://www.mr2roc.org/phpBB2/viewtopic.php?t=7041 (http://www.mr2roc.org/phpBB2/viewtopic.php?t=7041) m

Essential on Pre'04 cars (Before Toyota added the output of a small foundry below the front suspension), Not so helpful on post '04...

Also consider TRD Member braces for Pre facelift cars, these made the biggest difference by far to my previous '01 MR2.

How does the TRD measure up to the one you are selling (sorry to be off topic slightly)

My car is a 2001 Y Reg Mk3 MR2, if that helps...PICS for identification

 m http://img152.echo.cx/my.php?image=prague0369qb.jpg (http://img152.echo.cx/my.php?image=prague0369qb.jpg) m
 m http://img190.echo.cx/my.php?image=prague0370xg.jpg (http://img190.echo.cx/my.php?image=prague0370xg.jpg) m
 m http://img190.echo.cx/my.php?image=prague0353bp.jpg (http://img190.echo.cx/my.php?image=prague0353bp.jpg) m
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Post by: kanujunkie on May 16, 2005, 15:51
Quote from: "samhain"What does the breast plate do exactly ?

because of the way the cars designed there are effectivley 2 halves to the car, the breastplate ties these together across the transmission tunnel, normal vehicles dont have this problem as they have a roof to keep that rigidity within them but we dont and hence the need to tie them together again. Unfortunatly Mr.T made a cack job of sorting this out with the stock items and so in came Corky with the answer
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Post by: Anonymous on May 16, 2005, 15:54
Quote from: "kanujunkie"
Quote from: "samhain"What does the breast plate do exactly ?

because of the way the cars designed there are effectivley 2 halves to the car, the breastplate ties these together across the transmission tunnel, normal vehicles dont have this problem as they have a roof to keep that rigidity within them but we dont and hence the need to tie them together again. Unfortunatly Mr.T made a cack job of sorting this out with the stock items and so in came Corky with the answer

Thanks mate. Presumably the holes for attaching the plate have to be predrilled ?
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Post by: kanujunkie on May 16, 2005, 15:57
Quote from: "samhain"
Quote from: "kanujunkie"
Quote from: "samhain"What does the breast plate do exactly ?

because of the way the cars designed there are effectivley 2 halves to the car, the breastplate ties these together across the transmission tunnel, normal vehicles dont have this problem as they have a roof to keep that rigidity within them but we dont and hence the need to tie them together again. Unfortunatly Mr.T made a cack job of sorting this out with the stock items and so in came Corky with the answer

Thanks mate. Presumably the holes for attaching the plate have to be predrilled ?

they come from corky predrilled, all you do is bolt it on
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Post by: SimonC_Here on May 16, 2005, 16:03
Quote from: "kanujunkie"they come from corky predrilled, all you do is bolt it on
... in place of the really weedy ones that are there already.

Simon
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Post by: mrsmr2 on May 16, 2005, 16:15
Just to drift the topic a bit further:

A hardtop seems to be very good for stiffening the chassis.

I've just checked various bits of footage shot from my camera mounted to the windscreen.  Results are:

a)  With the hardtop on there is absoutely no movement of the camera - the windscreen wipers and bonnet stay rock solid in the image, e.g. there is no flexing of the windscreen and body.  I didn't even have to use the image stabiliser for filming.

b)  With the softtop up there is a lot of movement.  I had to use the image stabiliser and in the image you can see the windscreen wipers moving up and down.  This shows the windscreen is flexing.

c)  With the softtop down there is more movement but not significantly more that with the softtop up.

for b) and c) I had the antiflex plate on.

Jason
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Post by: kanujunkie on May 16, 2005, 16:23
dont say that Jason, i may have to bite the bullet and buy a H/T now  s:roll: :roll: s:roll:
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Post by: mrsmr2 on May 16, 2005, 17:13
It also elimates nearly all vibration through the steering wheel.

The downside is that when it's on - you want to take it off and feel the open air.

Jason
Title: Rear Strut Brace
Post by: Anonymous on May 16, 2005, 17:23
This post seems to mention the front strut brace making an improvement, but what are peoples thoughts on a rear strut brace?

Dom
Title: Re: Rear Strut Brace
Post by: kanujunkie on May 16, 2005, 17:42
Quote from: "Dominic_Gregory"This post seems to mention the front strut brace making an improvement, but what are peoples thoughts on a rear strut brace?

Dom

the rear strut brace does make a difference, but after driveing with the TRD one for about a year and then removing it for re-powder coating, i cant say that i would bother if i was doing it again, looks nice though and does stop a small amount of sideslip at the back end.

(http://www.tandridgecanoe.co.uk/roadster/bar4.JPG)
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Post by: Anonymous on May 16, 2005, 20:48
As the TRD Front brace is the only MOD i've done on the chasis, maybe I notice the difference more than others.

Even though quite expensive, I feel that it's well worth the money.

The only thing it didn't live up to in my eyes, was reducing scuttle shake that much.

But the car feels a lot more stable, especially on the crappy surfaced Scottish roads and it was worth doing to clear the understeer away.

For me, the TRD Struct Brace, Cokey's plate and decatting is all I have planned mod wise!!   s:wink: :wink: s:wink:
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Post by: kanujunkie on May 16, 2005, 20:52
Quote from: "mikeep"For me, the TRD Struct Brace, Cokey's plate and decatting is all I have planned mod wise!!   s:wink: :wink: s:wink:

yeah right, like a famous advert said "once you start, you cant stop"

addictive this modding lark  s:wink: :wink: s:wink:
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Post by: Ernie Ball on May 16, 2005, 21:25
For the last 2 days I've been driving with the hard top off.  I must say there are loads of rattles that aren't there when the hard top is in place.
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Post by: kanujunkie on May 16, 2005, 21:29
seems like its a never ending task to try and stop em  s:roll: :roll: s:roll:
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Post by: Anonymous on May 17, 2005, 01:46
I've been looking for a pic of the Cusco brace install - thanks a million!

Re: Corky's plate - if you combine it with front lower arm bracing, bye-bye scuttle shake. I'm testing a Sustec FSB at the moment and I like what it does, but it prevents the use of the spare tyre cover and that's a big minus in my book. I'm shooting for the setup shown above.

Although I never had understeer at any point during my upgrade path, with the stock arrangement the car would correct for oversteer with extremely harsh feedback. Each mod (corky's, che's brace, FSB) has led to progressively controllable oversteer. When the back end breaks loose, I can feel when and how it's happening and it snaps back in more predictably.

From what I've gathered, stiffening up the back with a RSB or rear lower arm braces might negate this level of control. Over at SC, btw, we've pretty much established that the first suspension upgrade any owner should make is an anti-flex plate (aka: breastplate), which definitely offers the most dramatic improvement across the board.
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Post by: Anonymous on May 17, 2005, 02:00
I've been looking for a pic of the Cusco brace install - thanks a million!

Re: Corky's plate - if you combine it with front lower arm bracing, bye-bye scuttle shake. I'm testing a Sustec FSB at the moment and I like what it does, but it prevents the use of the spare tyre cover and that's a big minus in my book. I'm shooting for the setup shown above.

Although I never had understeer at any point during my upgrade path, with the stock arrangement the car would correct for oversteer with extremely harsh feedback. Each mod (corky's, che's brace, FSB) has led to progressively controllable oversteer. When the back end breaks loose, I can feel when and how it's happening and it snaps back in more predictably.

From what I've gathered, stiffening up the back with a RSB or rear lower arm braces might negate this level of control. Over at SC, btw, we've pretty much established that the first suspension upgrade any owner should make is an anti-flex plate (aka: breastplate), which definitely offers the most dramatic improvement across the board.
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Post by: kanujunkie on May 17, 2005, 08:21
Quote from: "southerneditor"I've been looking for a pic of the Cusco brace install - thanks a million!

great but thats a picture of a TRD install  s:wink: :wink: s:wink:  

Quote from: "southerneditor"From what I've gathered, stiffening up the back with a RSB or rear lower arm braces might negate this level of control.

havn't found this, in fact i think it makes it slightly more controllable by not snapping back so hard

Quote from: "southerneditor"Over at SC, btw, we've pretty much established that the first suspension upgrade any owner should make is an anti-flex plate (aka: breastplate), which definitely offers the most dramatic improvement across the board.

Same over here
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Post by: Ernie Ball on May 17, 2005, 09:46
Quote from: "kanujunkie"
Quote from: "southerneditor"I've been looking for a pic of the Cusco brace install - thanks a million!

great but thats a picture of a TRD install  s:wink: :wink: s:wink:

I think he was referring to this picture from earlier in the thread:

(http://mysite.wanadoo-members.co.uk/chris-pics/cusco2.jpg)[/img]
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Post by: kanujunkie on May 17, 2005, 09:48
Quote from: "Ernie Ball"I think he was referring to this picture from earlier in the thread:

Doh, missed that  s:oops: :oops: s:oops:
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Post by: Ernie Ball on May 17, 2005, 11:21
That cusco brace really looks like it allows the front hatch to continue to be used.  Anyone know if it does?
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Post by: kanujunkie on May 17, 2005, 11:28
pm Sean (Slacey)

i think he has one
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Post by: Tem on May 17, 2005, 11:30
Quote from: "Ernie Ball"That cusco brace really looks like it allows the front hatch to continue to be used.  Anyone know if it does?

Yeah, you can keep it. You can't fully open it though, but you can open it enough to pull it off.
Title: Hi
Post by: Anonymous on May 17, 2005, 12:46
What about getting the fluid top off? Is that possible with the CUSCO? Just deciding which to go for, i know the cusco is cheaper, but the TRD looks better IMHO.

Dom
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Post by: Chris on May 18, 2005, 20:08
apologies for the slow response guys, i've got no internet access at work at the moment!!

Anyway, to the questions...

Cutting the plastic was the hardest and longest part, partly due to me having a fairly small and none too sharp stanley knife, and partly due to the fact that the supplied templates weren't quite right!  The circles they show to match up to the bulges in the plastic (over the strut tops) aren't quite big enough or in exactly the right place, so i just used trial and error and kept refitting the plastic cover to see where it fouled, until eventually I had enough cut out.  I reckon it would be easier with a sharper knife/mini dremel or similar.

While the bin lid does fit, it only lifts by about 3" or so, so is not really usable.   I'm still contemplating just doing away with it or not...  I got the brace via groupbuy from japanparts and it cost about £150 or so in the end, once i was hit for import charges and the like.

I haven't tried the brake fluid lid yet, but i reckon that there is just enough room to get it off.  Failing that, it's only a simple allen key thread holding the middle bar on, so a quick loosen would enable better access.

It has firmed up the front of the car, making the steering feel weighter and less fidgety.  I've also noticed a reduction in the bobbing I used to get crossing the joints on the concrete sections of the m25.
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Post by: heathstimpson on May 19, 2005, 07:45
When I fitted my front Cusco recently I noticed that you have to be carefull that it doesn't foul the bonnet as it sits quite high up. I originally had the strut rings underneath and had to remove them. I also had to slightly relocate the onside washer hose as it crushed against the strut preventing it from working. This is easily done with a piece of insulation tape to hold it away. I have left my plastic compartment lid on, pulling it forward off the hinges when I want to use it. I found the same problem with the cut out stencils but just extended the size of their suggested cut section slightly.
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Post by: Chris on May 22, 2005, 15:59
Interesting, I'll have to check mine, as I left the rings on as well, but don't seem to be having any problems with bonnet clearance...  My washers are ok so far as well, just wish the wipers were the same!   s:wink: :wink: s:wink:
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Post by: heathstimpson on May 23, 2005, 11:26
Quote from: "Chris"Interesting, I'll have to check mine, as I left the rings on as well, but don't seem to be having any problems with bonnet clearance...  My washers are ok so far as well, just wish the wipers were the same!   s:wink: :wink: s:wink:
Did you leave the rings under the strut or place them on top of the mounts  s:?: :?: s:?:
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Post by: Anonymous on May 23, 2005, 12:09
I took mine off altogether.
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Post by: roger on May 23, 2005, 13:21
Don't know if its the same with the Cusco, but I took the rings off on my TRD because IMO the nuts weren't screwed sufficiently on to the strut bolts to guarantee a good hold.

Might have been of course, but I was advised (by somebody here) that this was the norm, and that this did not cause any problems.
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Post by: kanujunkie on May 23, 2005, 13:24
Quote from: "roger"Don't know if its the same with the Cusco, but I took the rings off on my TRD because IMO the nuts weren't screwed sufficiently on to the strut bolts to guarantee a good hold.

Might have been of course, but I was advised (by somebody here) that this was the norm, and that this did not cause any problems.

if you leave the rings on then there isn't enough threads comeing through the nuts to keep them in saftey i.e. to allow them to do they're job properly, so take em off

there is enough room for thin washers however
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Post by: roger on May 23, 2005, 13:29
Sorry Stu, might have confused - its the norm to take the rings OFF.
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Post by: kanujunkie on May 23, 2005, 14:24
Quote from: "roger"Sorry Stu, might have confused - its the norm to take the rings OFF.

sorry mate RTFQ  s:oops: :oops: s:oops:
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Post by: Chris on July 13, 2005, 23:53
Quote from: "heathstimpson"
Quote from: "Chris"Interesting, I'll have to check mine, as I left the rings on as well, but don't seem to be having any problems with bonnet clearance...  My washers are ok so far as well, just wish the wipers were the same!   s:wink: :wink: s:wink:
Did you leave the rings under the strut or place them on top of the mounts  s:?: :?: s:?:

Strange, but recently i've been putting up with the left washer not working, then I remembered this thread, and sure enough, upon checking the hose was squashed by the brace.  I've taped it to the rear edge of the bonnet for now, but did you find that taking the rings off gives the extra clearance needed?
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Post by: heathstimpson on July 14, 2005, 07:07
Quote from: "Chris"
Quote from: "heathstimpson"
Quote from: "Chris"Interesting, I'll have to check mine, as I left the rings on as well, but don't seem to be having any problems with bonnet clearance...  My washers are ok so far as well, just wish the wipers were the same!   s:wink: :wink: s:wink:
Did you leave the rings under the strut or place them on top of the mounts  s:?: :?: s:?:

Strange, but recently i've been putting up with the left washer not working, then I remembered this thread, and sure enough, upon checking the hose was squashed by the brace.  I've taped it to the rear edge of the bonnet for now, but did you find that taking the rings off gives the extra clearance needed?
If the rings are underneath the strut then definately; if they are above of course it makes no difference. I still had to tape the LHS washer hose out of the way even with the rings off  s:? :? s:?  and its worked fine ever since  s:wink: :wink: s:wink:
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Post by: Anonymous on July 14, 2005, 08:54
Quote from: "Chris"Cutting the plastic was the hardest and longest part, partly due to me having a fairly small and none too sharp stanley knife, and partly due to the fact that the supplied templates weren't quite right!

 m http://www.mr2roc.org/phpBB2/viewtopic. ... 1996#21996 (http://www.mr2roc.org/phpBB2/viewtopic.php?p=21996#21996) m

  s:wink: :wink: s:wink:
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Post by: richbay on July 14, 2005, 11:24
SO ARE WE SAYING THE TWO MUST HAVE MODS FOR A 2001 CAR ARE THE FLEX PLATE AND FRONT UPPER STRUT BRACE? IF SO WHERE IS THE BEST PLACE TO PURCHASE AND UPP FRONT STRUT BRACE .....