Alan Jeffery

Not raced yet. We built a 460 bhp car for a "classic" customer who subsequently went on to fit a 6 speed, but he didn't break his old box despite trying very hard! typical really, if he was relying on it, you could bet your a--e it wouldn't have lasted five minutes.

R4LLY

iTrader: (1)

Is there any news on a ball bearing version of this setup yet?

Also how would it fare on a built 2.5?...

Mus

iTrader: (2)

or have you tryed the t38 on a built 2.5?

Alan Jeffery

Not yet, book one in and we'll give it a go!!

Mus

iTrader: (2)

lol i already have

JP4

iTrader: (12)

lol!

All this talk about a 2.1 is tempting me now!!

Mus

iTrader: (2)

that turbo you currently have will go on nicely on that 2.1 more boost, more torque MORE FUN

Mus

iTrader: (2)

alan thanks for tea and the mags, i got to say you guys have one impresive set up down there. i look forward to sending my car down to you guys over the next few days.

nice bunch, down to earth with great customer service i would reccomened them to anyone


mus

Ian

iTrader: (10)

has anyone got a 2.1 with a 20g?

JP4

iTrader: (12)

My turbo is going on a closed deck 2.1 - will be mapped in a few days time. I reckon the car is going to be bloody quick!

coulty

Yes have done for quite a while now. 2.1 cdb with 20g. Pulls 1.6 bar at 3100 rpm with 10% meth and like a train. Looking to up the stakes now i have been there and done that.

JP4

iTrader: (12)

What power levels (bhp & torque) are you achieving at 3100 rpm and overall?

coulty

Not ever had it on the rollers but using 96% duty at 4 bar fuel pressure on 550cc injectors should point you in the right direction.

JP4

iTrader: (12)

I would think circa 420bhp (ish) / 415lbs (ish) torque mark? Thought of going for bigger injectors / turbo?

coulty

already in the pipeline. injectors should be here soon and turbo will be later in the year. thinking 321t or t+

Nah the torque wouldn't be anywhere near that high on a 20g. More like 350-360lbsft.

JP4

iTrader: (12)

Keep us posted when it's done! 321s are way to go m8

R4LLY

iTrader: (1)

Will be good to see your car out when it's complete Jag

What turbo will you be running?

Also Coulty take a look at the graph of the T38 that Martyn posted on page 2, that's with straight 97 ron, so with meth and V Power would be awesome!

Mus

iTrader: (2)

only 1.6 bar and interms of price i dont think you can go wrong

JP4

iTrader: (12)

Yep, me too.

Currently looking at GT30 - what do you think of them m8?

hhh1234

iTrader: (17)

Alan how much more torque would a 2.1 generate compaired to a 2.0, lets say for sake of arguing that everything is the same spec.

Ian

iTrader: (10)

bttt

Alan Jeffery

We haven't done a really accurate back to back, so I can't say for sure. We noticed improved spool, which I'd expect, given the extra stroke and swept volume, so it all depends what it is you are looking for and how you're looking for it! If the turbo gives more boost at lower rpm, that's a nett torque increase. I don't think it would be too far out to claim say 200/300 rpm of spool, and possibly as much as 20/30 ft lb without changing anything else.
It would certainly make a bigger turbo more useable.
In a previous life, I spent a lot of time converting Escort RS turbos to ZVH (Zetec bottom end and CVH head) and the capacity jump from 1.6 to 1.8 was like chalk and cheese.

p1doc

all sounds good-just waiting now lol
will mine be first one in a murtaya??
any cheap ways of raising the revlimit as previously discussed-later 1996 wrx ra's have higher rev limit due to mapping or internal changes??
martin

Alan Jeffery

Second in a Murt! sorry..
The rev limit is more determined by the heads than the management! hydraulic lifters will hold you back a bit, but I doubt you'll find it lacking anyway.

p1doc

i think it should be more than adequate,oh second not first lol
martin

banny sti

iTrader: (68)

Say if you wanted a genuine 2.2, would it be possible to do this with an EJ20 block or is an EJ22 needed?

Banny

Alan Jeffery

Well, you could do it with a linered EJ20 block, but I wouldn't rush off there personally.

Ian

iTrader: (10)

It is a V nice set up you have down there Alan, and some v nice big powered cars

V5RLTD

iTrader: (5)

You dont mean the black cosworth equipped sti with 650bhp per chance?

Alan Jeffery

We have two more like that out now, one featured in a forthcoming Japanese Performance, and one in Total Impreza.