MaRkYbOy72 Posted October 29, 2007 Share Posted October 29, 2007 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 ... Quote Link to comment Share on other sites More sharing options...
Jake Posted October 29, 2007 Share Posted October 29, 2007 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. Quote Link to comment Share on other sites More sharing options...
hogmaw Posted October 29, 2007 Share Posted October 29, 2007 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! Quote Link to comment Share on other sites More sharing options...
Homer Posted October 29, 2007 Share Posted October 29, 2007 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 Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 29, 2007 Share Posted October 29, 2007 plus you'll be running at around 400 bhp i've been told so WELL WORTH IT!! Quote Link to comment Share on other sites More sharing options...
Pete Posted October 29, 2007 Share Posted October 29, 2007 plus you'll be running at around 400 bhp i've been told so WELL WORTH IT!! See Jakes comment re: BS r/roads Quote Link to comment Share on other sites More sharing options...
DrivingTheDream Posted October 29, 2007 Share Posted October 29, 2007 IMHO I never noticed a massive leap in performance. Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 29, 2007 Share Posted October 29, 2007 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) Quote Link to comment Share on other sites More sharing options...
Muffleman Posted October 29, 2007 Share Posted October 29, 2007 The difference is very noticeable, a BPU Supra really is a quick car Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted October 29, 2007 Share Posted October 29, 2007 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? Quote Link to comment Share on other sites More sharing options...
Gerry Posted October 29, 2007 Share Posted October 29, 2007 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 Quote Link to comment Share on other sites More sharing options...
letmeshowyou Posted October 29, 2007 Share Posted October 29, 2007 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 Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 29, 2007 Share Posted October 29, 2007 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?) Quote Link to comment Share on other sites More sharing options...
letmeshowyou Posted October 29, 2007 Share Posted October 29, 2007 Jamesy, an uprated fuel pump (or checking your one is flowing enough) would be a good idea before winding the boost up Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 29, 2007 Share Posted October 29, 2007 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? Quote Link to comment Share on other sites More sharing options...
Jake Posted October 29, 2007 Share Posted October 29, 2007 i am also getting a walbro 341 uprated fuel pump That's for a UK spec. You want a GSS342 for a J-spec. it will automatically go to 1.2 BAR once decatted? At least. It'll hit 1.5 - 1.6 bar unless you restrict it. Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 29, 2007 Share Posted October 29, 2007 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!! Quote Link to comment Share on other sites More sharing options...
MaRkYbOy72 Posted October 29, 2007 Author Share Posted October 29, 2007 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? Quote Link to comment Share on other sites More sharing options...
flukey-lukey Posted October 29, 2007 Share Posted October 29, 2007 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 Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted October 29, 2007 Share Posted October 29, 2007 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. Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 29, 2007 Share Posted October 29, 2007 i will let you know the difference for myself on friday night!! Quote Link to comment Share on other sites More sharing options...
MaRkYbOy72 Posted October 29, 2007 Author Share Posted October 29, 2007 Cheers Jamesy, lookin forward to hearing from you Quote Link to comment Share on other sites More sharing options...
miko_supra Posted October 30, 2007 Share Posted October 30, 2007 does anyone have a drag strip video of stock vs bpu? i think that would be a good indication of the performance difference Quote Link to comment Share on other sites More sharing options...
markjodrell Posted October 30, 2007 Share Posted October 30, 2007 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. Quote Link to comment Share on other sites More sharing options...
QSC Posted October 30, 2007 Share Posted October 30, 2007 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... Quote Link to comment Share on other sites More sharing options...
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