Hi!

Is a Stage 2 T3 Turbo .36 exhaust housing to small for a 2.0ZVH?
Would like to get ~230hp and a fast spool up.

 

to be honest it wouldnt have any lag realy.... but whats the spec of engine and is it efi or mfi....

the turbo will do 230bhp on the right engine... (see karlos g) thats what hes running on the same turbo but on a 1600 with megasquirt...

if its still on mfi it will be running out of fuel before boost lol as they will only safely flow to around 210bhp... then you would need at least a 5th injector.

 

HI,

Car will run on efi.

 

then yes its possible mate and would be a nice spec... it might start to run out of puff at high revs tho... alot of people say a stage 3 t3 works great with zvh...

 

Stage 3 means .48 exhaust housing?

 

yes mate it would be less stessed at 230bhp and would hold onto the boost alot longer and theres scope for alot more in the future if you wanted to to ...

 

Mark what would a stage 3 t3 top out on? Too small for zetec turbo?

 

on a 1600 they top out at 270/280 depending on engine spec and mapping but tend to make a abit more on zetec turbo....

for you car i would either fit cosworth stage2 t3 or just fit a t34 .48 as either on a zetec turbo will do the 300bhp you are looking for and wont be maxxed out and still quite responsive

 

it all depends on where you want the power, my zetec turbo reved more freely at high revs with a .48 t3, and i would say the boost came in about 200rpm later, no difference in actual lag time as the turbos internals are the same size. I had a .63 t34 on my 2litre zvh, it made full boost at 4k, was really laggy as the turbos internals were a lot heavier. Too big IMO for the power i was making

 

chaffe when do you think mine will make boost..

its a low comp 1600cvh with big valve head and will have a newman cam...

im running a t34.48 nms spec turbo with airtech manifold and ported efi inlet

 

never had a 34 .48 on a 1600 mate, so i cant comment, only on a 2 litre. At a guess, and it is a guess, i would say peak boost around 4k.

 

thats ok i surpose as im looking to get the thing to boost untill around 7k ....

 

solid lifters for that kind of rpm i would think mate

 

As it's a 2.0 I would want to run a .48, but unless your head is well ported with bigger valves and the correct spec cam it's not going to flow well and the .36 might be better, if it is the above then the .36 will be restrictive at mid-high rpms upwards.. IMO.

 

yes mate will be newman cam and soild lifters before mapping....

 

excellent, get a t4 then mate lol.

 

Thanks for the info!

 

lol then i can hang around with d4rst lol

well if it makes full boost at around 4k and holds it till 7k i will like that as to be honest im looking at running peak boost of 2bar and then what ever it makes it makes

 

my mate ran a t4 off a bently on his vr6 turbo golf, it never made peak boost topped out at 7 psi at 6500 rpm, was more like a supercharger, the boost just climbed with the revs lol. it was a 1.3 ar on the exhaust! was later changed to a .63 ar t34, what a difference, peak boost of 1.2 bar at only 3k.

 

thats it i think the t34.48 is about as big as you can go on a road car

 

I have a stage 2 T3 on running on my 2.0 ZVH. It seems to spool up really quick, not much lag at all. In fairness ive never really known any different though so cant compare it against much.

 

is your head modified

 

If that question is aimed at me then yes, looking at my history folder I have receipts for a "stage 3 Cylinder Head Developments head, Kent CVH35 cam and vernier pulley" not sure what makes it a stage three though.

if the question wasnt for me the take no notice of what ive just said, lol.

 

i had an t3 .63 on my old zvh and was to small but i had very good head job on it at the time and went t34.63 and still had no lag and went even better

 

No lag with a .63 t34? i would hate to see what you would describe as a laggy turbo

 

yes mate it was for you lol i was asking because want karlos said with a free lowing head the turbo would work well... but for me on a 2lt i would have a bigger turbo maybe at least a stage3 t3

 

t4?

 

lol, not so much a question of lag, but a question of if it would ever spool at all!

 

it might do at 7k lol

 

well mark if i see you over weekend then you'll know exactly how yours will go

 

good man im up for that cant wait .... see the pics of mine on here