T28 RST

My spec

1618cc CVH, stage 2 big valve head (ported and polished), Newman cam, solid lifters, piper vernier, wire ringed block, lowered compression(7.5:1), ARP conrod Bolts, heavy duty bearings, high pressure oil pump, AVA ecu, 7000rpm limiter, AVA modified fuel system, AVA high flow tubular manifold, T28 turbo, 360 bearing, reshaped cosworth front pipe, AVA Large capacity intercooler, samco water and boost hoses, magnecor leads, magnex exhaust, modified airbox, AP 4 paddle clutch.

JamboRS

1.6cvh
lightened and balanced bottom end
wire ringed block
low compression pistons
arp conrod bolts
2.5" mongoose exhaust
grs front mount intercooler
AVA spec stg 3 big valve head
AVA spec custom newman cam/solid lifters/double valve springs
piper vernier pulley
stg 3 t3 hybrid turbo
AVA chip and modified fuel ecu(7200 rev limit)
2 standard rs turbo fuel pumps
standard airbox
helix paddle clutch

JamboRS

yeah on a cossie suppose its just basically an ecu change where as on a rst it needs the ecu,injectors,map sensor fuel rail etc etc

sas

This one is almost the same as mine, just the turbo and managment is different.

S.

sas

What a numpty I am and a 2.0l zetec bottom end.

Fiecos Dan

So spec wise,


the only major differences are the Turbo's/ (mani?) and the heads.


i didn't think my stg 3 head was needed on my 200 bhp xr2, so i've gone back to stg 2.

T28 RST

So you think the turbo and manifold on my car are restricting it

If you look at the chart it shows the 2 cars get to almost the same power at 4000rpm, mine with a smooth pick up and Jamies with a bang in your face, wouldnt this cause loads of wheelspin even in the dry

I would like to see what mine performed like with Jamies turbo on it

Fiecos Dan

Your powers are similar after 4000rpm, but upto then yours is lot less.


my xr2tt was a similar power / curve as yours, with nothing below 4000 rpm, but on trackdays, it was a real pain coming out of corners.

And that was on a hybrid t25, since have changed to a t3, but yet to tune it.

JamboRS

no it doesnt as ive got decent tyres and not nankangs
initially in first gear you get wheelspin and if you slam it into second fast it will just wheelspin,but ive not got a hard cut limiter so it just flicks off the limiter and when it regains grip it goes about its business
ive got a low boost setting for lower gears and ususlly just flick it to high midway thru third,thing is with first and second gear over so quick you rarely get to use the full power anyway so this way im down on power but i would reckon its makin up more ground
im actually lookin forward to the summer to get some grip as in the wet its useless,but im rarely out in it when its wet

Ade

Way too nice a car too break! Don't do it mate!

Andy_R

iTrader: (3)

212bhp was the point at which we changed management on my car.
Up until that point it was almost identical in spec to Jamies, the only differences being Jamies fuel system is slightly different and the head on mine was standard (excluding the cam).
It did however have the tubular exhaust manifold fitted.

Performance wise 13.9 qtr at 103.7 the one and only day it ran that spec at Crail.