capriturbo

Hi all, I've got a big turbo cosworth engine in my car running stage 1, its a standard turbo but i have just fitted an electronic boost controller and the difference is really noticable. Before i was hittin 14psi at around 5000rpm now it hits it at 3500rpm. i was just wondering what kinda revs everyone hits full boost at? Are there any easy ways to reduce the time it takes to spool up, i like having it rev freely all the way to 7000rpm so i dont really want to downsize my turbo. Any help would be much appreciated. Cheers

Alex

Kelv

iTrader: (4)

my old setup being on a UT T38 and greys used to be able to give me full boost of about 36psi by 3400rpm.

i was shocked at how savagely the boost came in.

for me this was an awesome setup for a road car - im just hoping the new engine and spec (if i dont break the car over the coming weeks) will be alot better

SortedCossie

i only have a puny t28 hybrid on mine - this produces its full 1.2bar boost at under 2500rpm, but runs out of puff by 5500rpm

capriturbo

How come it came on boost so early?

Alex

Kelv

iTrader: (4)

Speak to the tuner who did it mate, that was his department.

was excellent fun to drive!

lowman

hey kelv...are you breaking your car mate?why..heh

RWD_cossie_wil

iTrader: (9)

It sounds like your car had a fault before you fitted the boost controller, a T34.48 should be on full boost by 3500RPM easily....could depend on who's chip the car is running as well?

My escort was running a T34.48, and with msd's mapping it was on 25psi well under 3000RPM



I'm glad you have said this, as I have just bought a T38 UT spec, and everything I have read about them people have said they are laggy and make crap torque ... Who mapped your engine, and would you say its a big/slight improvement over a T34.48/63?

Did you ever get it dyno'd or rolling roaded?

Kelv

iTrader: (4)

Wil, i never had it on a rolling road to prove its power

it was all taken care of by Steve Scott, and yes it was so much stronger than my T34 ever gave me all the way thru the rev range, you could actually feel were the T34 used to give up slightly.

the T38 just felt like it got stronger as the revs increased

rapidcossie

2.5 bar at 4k on my T4

Kelv

iTrader: (4)

Now thats not bad Euan

rapidcossie

same on the new one now too

RWD_cossie_wil

iTrader: (9)

Go away, this is for ESCORT cosworth owners, not shonky old taxis


















































- Thats great figures for a T4, where does it start making boost? My T4 saff is a mare' to drive, but have not really had a chance to give it a proper shakedown and set-up yet

Kelv

iTrader: (4)

which spec of the T4 did you decide to go for in the end - after all the research/time and testing etc?

capriturbo

Ha you have got me worried now. The ECU i got came with the chip already in it. I just took the lid off it and it says on it: 270bhp Cosworth on a sticker and on the chip, made in singapore. No specific make on it as far as i can tell. I was thinking of getting a stage 3 chip from MSD anyway. Is there anything else that could be making it take so long to spin up? Thanks

Alex

Kelv

iTrader: (4)

Alex, you could possibly have an air leak, does it hold the boost once it achieves it?

capriturbo

Yeah spins up to around 14psi depending on outside temp and holds it lovely, it did this without the boost controller before, it just does it a lot faster now. Just not as fast as everyone else it seems!

Alex

Ruudsengen

I hade this problem on my escort. Didn`t find any air-leak, but changed the plenum gasket anyway. When I removed the plenum I saw half of the gasket was missing.
Now everything is

rapidcossie

got 2.3 bar at 3500rpm on new turbo as of set up today

RWD_cossie_wil

iTrader: (9)

Shit the bed

SortedCossie

saw your mota with bonnet up in lawleys 2day - take it that its not far from being finished

rapidcossie

havent done that since i was a baby

RWD_cossie_wil

iTrader: (9)

Miles away mate. Poor Jamile, it's been sat on his ramps for the best part of 6 months ... Think I owe him a few beers .

Just loads to do, finish the engine build, fit the hydrualic clutch, and loads of bits like poly bushes, coil-overs, big brakes etc etc etc.... The main hassle is I need bits to finish the engine build but still waiting for them

I am hoping it will be running and ready to run-in by friday latest ... Didn't realise you lived so close mate, saw your car parked on the drive today, looked

SortedCossie

wow, there is a bit left then, but will be worth it when finished.

yeah cheers m8, i live just down the hill from jamies,