Discussion
Gazboy said:
Yep, I'm trying to find the most cost effective way to breach 155mph at Brunters... Fensport reckon a Garret GT28 turbo, WI, and 272 cams. I think the cams are a bit much, 254 would probably suffice...
The more harsh the cam, the crapper idle, and general running around town is going to be. betetr off with a port and polish to improve the induction... On a side note I had an indicated 172 on a spirited drive one day, so taking into acount speedo error, with your setup it shouldn't be too difficult! Just need a decent run up!
>> Edited by andy mac on Thursday 4th November 14:38
Not sure if a lightened flywheel would help or not.. gain acceleration, but lose top end speed I think... Rememeber to take out spare wheel, coats, jacks, all that stuff to get car as light as possible. I reckon a port and polish might get you there. Should work well with your induction, and exhausts system..
Commiserations to your wallet MrE-I feel your pain,my wallet knows it too
Gaz-get Mrs Gazboy to destroy your credit cardsNOWIts not too late to save yourself
Low mass fly-wheel will help general response/quicker pickup.The down side can be lack of power on hills & such,as spinning inertia is lost thru the weight saved .This can be a really useful way of getting more response from your engine but prolly won't give you any 'top-end'iirc.Your own uprade plans will get you thereThe guys suggestion for a port & polish would definately be good idea.Achieving pure top-end speed is,unfortunately,the most expensive route.Weight saving-throwing out unwanted stuff is cheap.IMO good tyre & suspension setup really start to pay their way at big speed too.
>> Edited by tuttle on Thursday 4th November 16:06
Gaz-get Mrs Gazboy to destroy your credit cardsNOWIts not too late to save yourself
Low mass fly-wheel will help general response/quicker pickup.The down side can be lack of power on hills & such,as spinning inertia is lost thru the weight saved .This can be a really useful way of getting more response from your engine but prolly won't give you any 'top-end'iirc.Your own uprade plans will get you thereThe guys suggestion for a port & polish would definately be good idea.Achieving pure top-end speed is,unfortunately,the most expensive route.Weight saving-throwing out unwanted stuff is cheap.IMO good tyre & suspension setup really start to pay their way at big speed too.
>> Edited by tuttle on Thursday 4th November 16:06
Gaz,iirc this is a standard mounted IC,to really make efficient use of an intercooler it really needs to be in a good cold air flow position,which is prolly why many ppl go for 'front mounted'& I have to agree there.However if space is limited at the MR2's nose, or you do dont want your front bumper cut to fit an FMIC(in front of your radiator)look for a design that has largest possible surface area with the most cooling slats/fins packed for best efficiency.
Good link for explaining I/C efficiency below.
www.bellintercoolers.com/Pages/tech.asp#o
www.greddy.com/
Good link for explaining I/C efficiency below.
www.bellintercoolers.com/Pages/tech.asp#o
www.greddy.com/
tuttle said:
Gaz,iirc this is a standard mounted IC,to really make efficient use of an intercooler it really needs to be in a good cold air flow position,which is prolly why many ppl go for 'front mounted'& I have to agree there.However if space is limited at the MR2's nose, or you do dont want your front bumper cut to fit an FMIC(in front of your radiator)look for a design that has largest possible surface area with the most cooling slats/fins packed for best efficiency.
Good link for explaining I/C efficiency below.
www.bellintercoolers.com/Pages/tech.asp#o
www.greddy.com/
Causes absurd lag, and the plumbing becomes too extensive... Some people do mount an intercooler in the boot, with some big bugger fans drawinjg in the air...OR... RS200 roof mounted intercooler?
£995 on the fensport site, for a 28...
Garrett GT28 - Internal Wastegate, complete with actuator & Flange, exhaust & Oil drain flanges.
*Guide:- Our entry level garrett turbo, is ideal for cars which have outgrown the CT series power output, but still don`t want the lag associated with the larger turbo kits. 1 bar boost is available from 3,400 rpm, for power outputs up to 420bhp.
£995.00
Garrett GT28 - Internal Wastegate, complete with actuator & Flange, exhaust & Oil drain flanges.
*Guide:- Our entry level garrett turbo, is ideal for cars which have outgrown the CT series power output, but still don`t want the lag associated with the larger turbo kits. 1 bar boost is available from 3,400 rpm, for power outputs up to 420bhp.
£995.00
tuttle said:
So Mr E.Tell us about your suspension rebuild....
Dragging thread back on topic.....
Ahem. The Four has superstut suspension. Think double unequal wishbones with complications and you're close. Unfortunatly, it wears out.
So. I have just purchased:
2 x lower suspension arms
2 x fig 8 (camber control) joints
2 x front shocks
2 x rear shocks (20% uprated KYB items)
4 x TRD springs (25mm drop)
4 x TRD topmounts (stiffened poly jobs to replace the rubbers)
A bunch of suspension bushes.
I'm also seriously considering a whiteline adjustable rear anti roll bar to further resist understeer.
It will be a 1300Kg go kart.
Mr E said:
So. I have just purchased:
2 x lower suspension arms
2 x fig 8 (camber control) joints
2 x front shocks
2 x rear shocks (20% uprated KYB items)
4 x TRD springs (25mm drop)
4 x TRD topmounts (stiffened poly jobs to replace the rubbers)
A bunch of suspension bushes.
I'm also seriously considering a whiteline adjustable rear anti roll bar to further resist understeer.
It will be a 1300Kg go kart.
Sounds most excellent dude-suspension/handling upgrades are a most righteous choice,& often overlooked-because they're largely invisible.Looks like the Four has quite a complex setup.btwI've heard good things about the Whiteline kits & they're not stoopidly expensive.
My R33 is also having fr susp rebuild at mo(twin wishbone in a single frame,lower susp arms,camber adj rod,bushes etc)luckily its an insurance job but its still silly:crazy:money>They're doing some body panel work too & its taking ages,cars been off the road since mid Aug
tuttle said:
Looks like the Four has quite a complex setup.
Tell me about it mate. It's quite a trick setup, but a total bastard to work on.
Interestingly, when the WRC cars were delivered to TTE, they took one look at the suspension, said "very sophisticated" and then ripped it out and bolted standard McPherson struts in......
....more adjustable, race proven, stronger, easier to fix, etc.....
So you're in the odd situation that the road going homolgation special has a more advanced setup than the race car.....
The whiteline ARB should further stiffen the back end to resist understeer a bit more. This is a good thing.....
Hey MrE I was having a quick lech at your car(on yourvery interestingweb-page & st205.net.I love that shape 4wd celica-very under-rated car,but was struck by the odd horizontal intercooler,not the position(scoobys do the same)but,why is it sealed in a box?I could see that its below a bonnet vent-but how does the cold air get in?
p.s.not trying to wind you up-just treat me like an inquisitive,annoying child
p.s.not trying to wind you up-just treat me like an inquisitive,annoying child
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