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General Car Related Discussion.To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.
hi all,wondering if anyone can tell me,does the size of exhaust housing on turbo make a difference to what chip you require?as in t34 .63 housing/.55 housing/.48 housing,also how much boost would my turbo be able to hold,its just been overhauled by cr turbos,360 bearing,step ring/seal thing/.48housing oh its t34,kind of wonder now if i should of got housing changed to a bigger one,is mainly used on twisty country roads tho,thanks alot col93saphcos
yes it does make a difference to what program the car runs! i wont try and explain as stu did a cracking write up on this a few years ago, and im sure someone can point you in the right direction!
is this custom map or off the shelf chip territory? i like the sound of 370bhp and 420lbft. i also have a stage 2 t34.48 with a ported and polished head .
yes you need different software, as the compressor maps are different.
i ran my t34.48 on stus 55lb siemens kit, it peaked at 36psi and held 28-29
made 370bhp and 420lb/ft, the ultimate road spec imo
thats the set up im fancying,but gearbox probably let go,doh! also fancy wasted spark conversion and a rear beam!!on closedloop with dark greens,goes great,just fancied more power but maybe theres other places i should spend my money on?like the pub!lol,thanks for replies great help,col93saphcos
is this custom map or off the shelf chip territory? i like the sound of 370bhp and 420lbft. i also have a stage 2 t34.48 with a ported and polished head .
you can do this on l6; no need to change the ecu unless you want closed loop etc
£325 for the chip - off the shelf no doubt
£200 for the injectors for the siemens (55's, 72's and 83lbs are all the same price)
gearbox (if in good order) will be fine at this level; i've seen 500hp & similar tq through a standard t5
on boost it is much much stronger, but god i miss the way it drove...it was the ultimate road spec...instant power no matter where you were or what gear you were in....bang 36psi
the T4 is really hard work.
Last edited by JTECH James; 12-12-2008 at 10:05 PM.
so what would be best,55lb siemens or light blues?
jtechsaph-were you breaking gearboxes pretty easily?
col93saphcos
weekly
the 55lb injectori s bigger than the light blue, bigger than a grey aswell, so you have more scope for tuning in the future. and wont be running them flat out which is much safer....
i doubt the light blue would flow enough for a 36psi spike...
Last edited by JTECH James; 12-12-2008 at 10:19 PM.
that sounds like it could get expensive,might just leave her on dark greens just now,fancy getting that wasted spark conversion so thought while doing that could get new chip and injectors but feeling upping the power might give me more problems,suppose its fast enough for me anyway!lol
col93saphcos
12-12-2008, 05:25 PM
turbo exhaust housings?
