just fitted t28

[s13sxturbo]

hi all, i just i fitted a t28h turbo today and it feels like its under boosting, i know there bigger and thay have loads of lag,it is boosting but not that much...its a standard engine just with the normal begginers mod...air filter,stainless exhaust do i need to get this chiped,z32 maf,444cc and a welbrow..oh and a front mount? should this put me right? also there was no vac pipe for the external actuator to connect to like the t25 has on the side of the turbo so i put it to my boost pipe just after the turbo and before the intercooler. is this right? please put me in the right direction...many thanks.

[TheBigShow]

http://www.sxoc.co.uk/vbb/showthread...ht=t28+fitting

might help ya mate.

[Vova]

Boost take-off sounds right What actuator did you use, a T28 one? If so, it's only boosting 0.4 bar or so IIRC, put on the T25 actuator or a bren-device (boost adjuster) to raise it to 0.7 bar or more.

Change:

Fuel pump - > Walbro
Plugs -> NGK BCPR7ES

[s13sxturbo]

Boost take-off sounds right What actuator did you use, a T28 one? If so, it's only boosting 0.4 bar or so IIRC, put on the T25 actuator or a bren-device (boost adjuster) to raise it to 0.7 bar or more.

Change:

Fuel pump - > Walbro
Plugs -> NGK BCPR7ES

cheers mate, thats all i needed to know.

[s13sxturbo]

cheers mate, thats all i needed to know.

sorry mate...i used the t28 actuator. could i not adjust that in any way?

[mixmasterspike]

nope you will need an adjustable, bleed valve or boost controller

[tommyb]

put some washers between the actuator and the bolts that hold it on,i.e. to space it away from the exhaust housing, should run about 1 bar with three washers but you need to check it with a boost gauge and you definatly need a chip! just run it 'as is' for now...

[mixmasterspike]

put some washers between the actuator and the bolts that hold it on,i.e. to space it away from the exhaust housing, should run about 1 bar with three washers but you need to check it with a boost gauge and you definatly need a chip! just run it 'as is' for now...

cool never new u could do that does it hold well

[awretham]

I used that method to up my mates boost, it works fine however I don't think you can push it past 0.8 bar if I remember rightly, probably due to the actuator spring. IMO it's better than using a Dawes device (yes Dawes! not Bren...) at those boost levels.

[sxbaz]

dude... are u saying u havent got a chip for it? because ull need one of them for fueling.

[wip]

dude... are u saying u havent got a chip for it? because ull need one of them for fueling.

^^^^ agree 100%

personally i wouldnt touch the boost without at least a fuel pump, front mount and chip

[s13sxturbo]

thats what i thought....this is why i asked! cheers all for your help.

[redsx94!]

with out the chip and stuff you will det like f**k up the revs. even if you get a chip it will still det due to the crap standard intercooler. get a stage 2 chip, walbro fuel pump and a front mount asap. i have norris design chip, t28, front mount, exhaust, filter, walbro and make 277.2bhp@ 7200rpm at 14.7psi

[Vova]

with out the chip and stuff you will det like f**k up the revs. even if you get a chip it will still det due to the crap standard intercooler. get a stage 2 chip, walbro fuel pump and a front mount asap. i have norris design chip, t28, front mount, exhaust, filter, walbro and make 277.2bhp@ 7200rpm at 14.7psi

Than why is my car at Stage 2, at 1 bar not detting? I disagree, a WMIC cools air sufficiënt enough to avoid det, it is however restricting aboven 0.7bar.

[redsx94!]

extreme overfueling and low power maybe

[Vova]

Low power? Don't think so asccording to RR and quarter mile times. Overfueling? Don't think so, plugs are nice and cooffecreamwhite...no need to take this further, accept you were wrong, it happens to the best.

[alanjuggler]

vova. apologies for being abrupt. but.

the standard wmic is shit.

oh and by the way, i recently replaced a friends intercooler on his punto 1.4 turbo. guess what, it's bigger than the standard s13 one and in full airflow. the s13 wmic always seems like an afterthought rather than a designed feature.

[Vova]

What is it I need to learn? That the WMIC should be replaced by an FMIC? If that is what you mean, I'm done.

I'm not saying the WMIC is good..(or shit) but its good enough to prevent det, even up to 1 bar as I proved myself in practice, so its not necessary to replace it as above was pointed out. It is optimal...but not necessary.

[alanjuggler]

... how have you tested for det?

[Sideways Danny]

Than why is my car at Stage 2, at 1 bar not detting? I disagree, a WMIC cools air sufficiënt enough to avoid det, it is however restricting aboven 0.7bar.

I agree and disagree, the standard WMIC will do some of the cooling needed and you can setup the engine to avoid det, however, you're going to lose power due to higher charge temperatures, the turbo will be working harder to achieve set pressure at the plenum, and you will get higher EGTs as a result, meaning engine melting is a step closer