How much difference is there? BPU vs Standard?

Is there a real noticeable difference between running a TT with BPU (boosting at 1.2 bar max) and standard (up to 0.9 bar max)? Is it the 0-60 times in acceleration thats quicker, top end or what? What is the main differences in performance? Just wondered ...

Yeah, there's a big difference. BPU will take it up to 350-370bhp, or more if you take it to a BS dyno place.

Everything is quicker, mostly due to increased turbo performance. BPU comes highly recommended because there is so much difference - for an outlay of about only £1k.

Don't worry about the top end too much, it's highly unlikely you'll ever get there BPU or not!

As above, there is a significant difference in the way the car performers.

It won't make a great deal of difference to your 0-60, but the rest of the driving experience will be transformed; throttle response is improved, turbo lag is reduced and there is far more power once 1.1-1.2 bar is achieved.

Take a look at the following link for more details: bpu

plus you'll be running at around 400 bhp i've been told so WELL WORTH IT!!

plus you'll be running at around 400 bhp i've been told so WELL WORTH IT!!

See Jakes comment re: BS r/roads

IMHO I never noticed a massive leap in performance.

See Jakes comment re: BS r/roads

oh yeah just noticed that - i havent got a clue on the figure post bpu but have always been told on here that u should hit the 400 bhp mark once fully bpu (as in both decats and supporting bit like fuel pump, exhaust etc)

The difference is very noticeable, a BPU Supra really is a quick car

There were BPU cars running over 400 BHP back in 2002 when I got my car dyno'd with them, I think Darrens was one of them... and G-Forces dyno is the most accurate I've seen... and tbh if a BPU Supra can outdrag the new BMW M3 then thats kind of an indication its running more than 400bhp?

IMHO I never noticed a massive leap in performance.

When we did the last one I noticed a difference, but not that much.

It wasn't until a few months later when I fitted a boost gauge that I realised that I was only getting a max boost of exactly one bar.

I suspect that going from stock to 1.2 bar max would make a lot of difference (hope so, as I'm getting BPU stuff together at the mo).

G

massive difference IMO.

I couldn't break out of the 14's on the drag strip when mine was stock. As BPU I've run high 12s

I suspect that going from stock to 1.2 bar max would make a lot of difference

G

i hope so - i am going from 0.8 - 1.2 this friday so hoping to see a massive difference.

(i hope im right in saying that as long as you have an fcd you will run to 1.2 bar at bpu?)

Jamesy, an uprated fuel pump (or checking your one is flowing enough) would be a good idea before winding the boost up

Jamesy, an uprated fuel pump (or checking your one is flowing enough) would be a good idea before winding the boost up

yes mate, forgot that point, i am also getting a walbro 341 uprated fuel pump....you dont need to do anything else to gte 1.2 BAR though do you - it will automatically go to 1.2 BAR once decatted?

i am also getting a walbro 341 uprated fuel pump

it will automatically go to 1.2 BAR once decatted?

That's for a UK spec. You want a GSS342 for a J-spec.

 

just rang to check and its the Walbro 342 i have got going on there ... cheers

At least. It'll hit 1.5 - 1.6 bar unless you restrict it.

got a restrictor ring order also!!

Thanks for all the comments .. however, if th edifference in 0-60 is not really noticeable, the question begs if its really worth the extra 1K plus and the extra strains on the engine that come with it?

Thanks for all the comments .. however, if th edifference in 0-60 is not really noticeable, the question begs if its really worth the extra 1K plus and the extra strains on the engine that come with it?

Simple answer - yes.

as said before it makes the car feel more responsive, quicker spool up time and LOADS better in mid range power. Well worth it

BPU is probably the best reason for owning a Supra, you can get a very fast, reliable car out of it for little additional cost.

i will let you know the difference for myself on friday night!!

Cheers Jamesy, lookin forward to hearing from you

does anyone have a drag strip video of stock vs bpu? i think that would be a good indication of the performance difference

does anyone have a drag strip video of stock vs bpu? i think that would be a good indication of the performance difference

That would be interesting, I would like to see that myself.

It'll hit 1.5 - 1.6 bar unless you restrict it.

Any ideas why mine still won't go above 1 bar ?

It's more than before going BPU but it won't go any further...