want to upgrade to a T34 n greys

ideally about 380bhp mark

what T34 do i need to go for, or more exact what housing

whats all this .48, .55 and .63 mean?

cheers lads

 

the .48 etc is size of exhaust housing. Obviously the smaller the less lag, but you wont get asmuch power top end of the rev range. If you want to get close to 400bhp got for the .63 mine was fine! and never moan about lag as would just change down to get it in power etc

 

They are the a/r of the exhaust (turbine) housing. Smaller the number = better response, but at the expense of top end power, higher EGT's etc (as it becomes a restriction) not a problem if spec'd correctly though.

Some good reading here: http://www.turbobygarrett.com/turbob...o_tech101.html

 

Just wot Rhys said

Steve

 

cheers for that lads

so obviously the best inbetween for power/lag is gonna be the .55

what sort of power would you see out of the 3 different ones?

running usual grey, 3 bar n RS500 I/C

would it be

.48 = 340bhp
.55 = 370bhp
.63 = 400bhp

im just making a complete guess here

 

.48 can make up to 350 bhp dave.

 

ive always used .63

as if i wanted to up the power from greens etc i know the turbo will be fine to use if i wanted to go greys

 

cheers kev & xr4x4

so think i wanna go .55 or .63,

how laggy is the .63?

any one know the power outputs for these 2 also?

 

tbh i dont hink the .63 is that laggy

you do notice it though but its nt much

i went from a std t3 running 24 psi and my god the car took off

after fitting the t34 you do notice the lag but its something you can live with as when it does come on boost you feell the difference as it feels stronger

 

so a standard t3 can give stage 3 (330bhp) but a .48 stage 2 t34 will only do up to 350bhp? not much of a difference between them then?

 

my advise would be a t34 with a .63 ex housing it will be more reliable at 380bhp

 

I would be surprised if a standard t3 did give a genuine 330bhp.

 

.48 can go up to 400 easy.
tabetha

 

.48 400 easy? not what have been told or read on here Tabetha.

std T3 wont give 330bhp. or can try but wont last very long!

 

I'd read a .48 wouldn't get past 350 - 360 bhp

 

we changed the .48 to a .63 and wasnt any more noticeable lag imho, it felt a lot better though

Sarah