what are the next steps ??

hi I have a 1994 TT 5 speed I have just gone BPU , what's the next steps I've been told to get a boost controller but what needs doing after that ? Ideally I would like 450 - 500 bhp but what's the best way to get that ?

Cheers

Best way is to search and read up on how to get to that...

Are you sticking with the 5 speed with that power level?

You better look into changing the gearbox before you do anything else

Options are

Auto box from a TT good for around 550-600bhp

R154 5 speed from mk III supra, should easily be able to handle 600bhp to my knowledge

Or V160/V161 tractor box, good for 1500bhp

As for achieving your 500bhp goal if you want the top end of that you would need some UK twins that are hybrids, or a small single, other than that you could probably reach the lower goal on J-Spec hybrids. About £1200 or so to get the turbos re built as hybrids from CR turbos I believe.

No I will be changing to the 6 speed , so just uk spec turbos will be good for that ? ,

You will need a new ecu,550's and a few other bits n bobs,i think a lad on here has done it with his dads car? .

No I will be changing to the 6 speed , so just uk spec turbos will be good for that ? ,

You might be better with a small single if you want to hit 500bhp, as you'll need a UK ECU, or something like a Syvecs, bigger injectors, larger intercooler

Even if you got some UK twins with the right manifold you'd need to pay £1200 on hybrid one said turbos

My uk car never got much over 400bhp. 500 is a long way off. And you never see a bpu hybrid turbo car that much over 450 unless your in the USA. And don't bother with uk turbos. They are actualy smaller than jspecs so they don't get the hybrid treatment. Even my small single gt35r (you dont go any smaller) makes 520bhp

My uk car never got much over 400bhp. 500 is a long way off. And you never see a bpu hybrid turbo car that much over 450 unless your in the USA. And don't bother with uk turbos. They are actualy smaller than jspecs so they don't get the hybrid treatment. Even my small single gt35r (you dont go any smaller) makes 520bhp

Drift bears auto is on UK hybrids mate at 1.6 bar and that is around 500bhp mate

hi I have a 1994 TT 5 speed I have just gone BPU , what's the next steps I've been told to get a boost controller but what needs doing after that ? Ideally I would like 450 - 500 bhp but what's the best way to get that ?

A top of the range electronic boost controller will spool up the turbos quicker by better controlling the wastegate and help to maximise the boost pressure through all gears.

After doing the BPU modifications it starts to get very expensive, 430hp is about the maximum you can get from the stock j-spec turbos, along with high lift/longer duration cams, bigger injectors and mapped ECU.

Fitting UK turbos is not that straight forward and would be a backward step IMO - they spool up slower and seem more susceptible to seal/bearing wear - I'd also not bother with hybrid turbos for the same reason.

Okay so really my next step is boost controller then change the ecu and remap ,,

then change the ecu and remap ,,

Not much point if you're staying with the standard TT setup, you'll be spending £1500-£2000 on an ECU that you might be lucky to squeeze another 10BHP from a better map.

If I were you, I'd leave it as it is or go single.

Not much point if you're staying with the standard TT setup, you'll be spending £1500-£2000 on an ECU that you might be lucky to squeeze another 10BHP from a better map.

 

If I were you, I'd leave it as it is or go single.

A new ecu will cost you so much for such little gain. If your lucky you may be able to find a mines ecu which can raise your rev limit slightly, and i think has a built in fuel cut defender ( I think) so dont quote me on it, And a slightly better built in map over the standard ecu setup.

I have one in mine and thy come pretty well rated, If I pull my finger out with my single build mine will be up for sale But we'll see.

Gav

Question I've been wondering does a boost controller shorten the life of the turbos, assuming you only increase it 1.2 bar (perceived as the safe max)?

Not in general terms that more boost will shorten life etc, but specifically does using a boost controller cause extra wear?

Question I've been wondering does a boost controller shorten the life of the turbos, assuming you only increase it 1.2 bar (perceived as the safe max)?

 

Not in general terms that more boost will shorten life etc, but specifically does using a boost controller cause extra wear?

I am no expert on this, but shall answer as best I can. Tbh from what I've seen increasing the boost on these car's that are most getting on for 20 year's old now, doesn't seem to affect them to badly, damage to the turbo's etc, But in theory it will shorten the life of the stock turbo's as they where really designed to spend most of there life running at 0.8 bar.