Hyper

Hi i recently purchased an rs turbo, always wanted one and now got one.

Red 230 BHP @ 17.5 PSI
Chipped
Mongoose
fast road cam 34
stage 2 turbo
pro rad
pace intercooler
Baily dump valve and other mods.


The car has been proven at jampsort @ 214 and spoke to jamie, he said he knew the car and also confirmed it constantly produced great BHP figures on the rollers.

After than it went to frankiestien motorsport for a stage 2 turbo and fast road cam, on the phone they constantly suggest the cars BHP is 180-190, and say they would never set a car like this to 17.5 PSI. Although it does say peaking @17 PSI on the reciept.

The car would be hard to handle in the wet even with the throttle down only 1/4 in boost, the car would also not accelerate in a straight line and in the wet or dry. I normally kept the car too 3-4,000 RPM and wouldnt cain it round bends as when the boost kicks its just and animal. I cant confirm wether it has low comp pistons.

Recently i turned down the bleed valve now hitting 12 PSI and far more drivable for me. Although now im revving up alot higher, the cars still quick but not what it was. How much BHP do you think 5 PSI would make, and am i better off running low boost and thrashing a bit more or hight boost and thrashing less.

Thanks

biglee

sounds like fun to me, turn the boost back up and drive it like you stole it, is the only way

John Laverick

Is this a joke.....sounds like you need to develop your driving skills!!

Turn the boost back up and drive it HARD!! You’ll soon get used to it!

notSteveS2

as above... i drive mine hard and i run 18psi!!!


i love the torque steer... have u got shit tyres and no LSD?

that will help with traction!

Hyper

its defo got pretty shit tyres, and judges by how she torque steers on round abouts when u boot it, theres no LSD.

Hyper

PS how much BHO difference would 5 PSI make.

Thanks

Hyper

*bhp

zippyobrien

iTrader: (2)

on a engine with those mods, on 5psi u might get 140bhp

Hyper

hi the cars running 12 PSI at the moment, from its previous 17PSi. How much BHP would reducing the boost by 5 PSi make.

Thanks

Ad4m RST

I'd say you'll go from about 210hp to maybe 180-185hp roughly with that boost reduction. But don't bother torque steer and cornering all part of the fun

Hyper

thanks guys, now its time to get the roof painted. Leave it at 12 at least untill that sorted. Like they all say, it dont think its gone through.

notSteveS2

think its bout 4bhp per PSI mate

Hyper

Are there any mods i can do to this, or should i just go ZVH

JimmyBoy

iTrader: (1)

Why would you wanna do any more mods if you are turning the boost down? or am I missing the point? from the impression I got, you was finding your current power a handful, so why would you want more?

Hyper

iam but you still goto keep going forward.

JimmyBoy

iTrader: (1)

Things that spring to mind:

1) Covert to efi
2) Use larger injectors
3) Upgrade management
4) Forged pistons
5) GRS Intercooler (If your pace one is the tiny one)
6) T34 Turbo

Hyper

thx mate will keep in mind

Hyper

prob do the pistons next

JimmyBoy

iTrader: (1)

You can turn the boost up then rather than down! lol

Hyper

thats the plan as previous owner couldnt confirm, just sometime would be nice to get all that power down on the road.

Hyper

Mines H733 AAM by the way.

Hyper

Mines H733 AAM by the way.

Hyper

think the trackings out and lower arms migh be gone, hence control problems.

Hyper

also noticed today, she real soft on the rear. It may be whys shes a bit twichy round the bends.

JimmyBoy

iTrader: (1)

Could add to that list:

7) Coilovers
8) Bernie Stage 2+ Gearbox

Hyper

cheers mate suspension was high on my list, as i think its got standard shocks on uprated springs, maybe 100,000 + miles old.

Get it all done one by one.

JimmyBoy

iTrader: (1)

9) New bushes all round
10) Good tyres! lol

Hyper

im just 4999.99 away from the 5G just pretend spent. LOL

Hyper

think ill go like this

1)roof
2)suspension and bushes 20 MM Drop
3)forged pistons
3.5) Stage 2 head
4)rear brake conversion

with some other jobs inbetween, and take it from there. Underbonnet bling just aint my thing.

JimmyBoy

iTrader: (1)

Seems fair enough mate.

Would be nice to do the head and pistons at the same time well then engines out.

Hyper

yeah mate your right, after s2 head and forged pistons. Ill stop on the engine i think mods wise. That will be enough for me. Just get it setup real nice on the rollers and she will be a beast.

Thanks for the suggestions and good night. Will post some images soon, just been rainy every day.

stuart collins

iTrader: (7)

change the management and leave the pistons

notSteveS2

get gd tyres....

get all tarcking checked...

get box with LSD...

change managment... run 20psi on standard bottom end!

Ad4m RST

1st get a power target...

I've seen forged pistons and a T34 mentioned thats going past 300hp potentially, and huge bills.

Deffo get the bushes, tyres & suspension sorted and go from there. Headwork, management upgrade, front mount IC and a hybrid T3 after that

'Hi, is that the bank manager'

Hyper

Yeah best to get it sticking to the road and the roof done. Pick up some bits if find em cheap on the way.

Eagle

iTrader: (2)

1. suspension...
2. gearbox...
3. brakes...

powere is nothing without control and you seem to have no control there ...

spax adjustable struts with leda springs .. poly bushes throughout the entire car..

go and see bernie (gearbox man) sounds like your lsd is dead...

bigger and better front brakes then add the rear discs ...dont forget to adjust the rear load proportioning valves ..as im sure you wont like the back end locking up all the time..

then get a bigger intercooler and alloy rad ....
bigger turbo ....
there is a modification you can do to the ecu .. put a switch in to tell it to run lower boost (approx half) .. use low boost for the wet