Guigsy Posted November 22, 2009 Share Posted November 22, 2009 (edited) Here is a comparison. This is my car (uk auto 1.3 bar). I would like to get it redone once ive had my little boost issue sorted out. The RR had issueing getting the car to stay in geer. they hadnt done an auto supe before. although i told them about manu mode. The driveability gets better. You wont loose torque. BPU 383.7 BHP at the flywheel 303.3 BHP at the wheels 379.4 ft/lb (514.5 Nm) Torque STOCK 320bhp 315lb-ft Edited November 22, 2009 by Guigsy (see edit history) Quote Link to comment Share on other sites More sharing options...
DSK Posted November 22, 2009 Author Share Posted November 22, 2009 Guigsy - Thanks. I will also be having one setting at 1.3 bar as my maximum setting as you seem to be happy with that yourself. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted November 22, 2009 Share Posted November 22, 2009 yep. been running perfectly like that. appart from what i mentioned earlier. but i think thats possibly something to do with the car being 14 years old rather than something braking due to the 1.3 bar lol. It will get to about 1.1 on a long pull but before it got to 1.3 quickly. I dont have a boost controller its limited by the wastegate. so im guessing something has got a bit old and worn out somewhere. lol Quote Link to comment Share on other sites More sharing options...
Lbm Posted November 22, 2009 Share Posted November 22, 2009 Just hope I don't regret BPU otherwise my parts will be for sale if my torque is decreased and the overall driveability is affected. Oh and big thanks to Paul Whiffin for putting up with me and supplying the parts You won't. It drives beautifully off boost. Paul also supplied and fitted all the bits for my BPU and it's great. I had the Supe for nearly 9 years before I went BPU. My only regret is it's something I should have done 8½ years ago In another 10 years time I my go single. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 22, 2009 Author Share Posted November 22, 2009 Thanks LBM, its reassuring to hear that original performance will not be lost. Quote Link to comment Share on other sites More sharing options...
AndyT Posted November 22, 2009 Share Posted November 22, 2009 Thanks LBM, its reassuring to hear that original performance will not be lost. Original performance is vastly improved mate. Some of the fastest track times around belong to BPU Supes. Quote Link to comment Share on other sites More sharing options...
imi Posted November 22, 2009 Share Posted November 22, 2009 Thanks LBM, its reassuring to hear that original performance will not be lost. Dont stress - Going BPU is not really a breakthrough science, its been done and proven over several years and the results are pretty much guaranteed (depending on the condition of the car to begin with). It will transform the car and you will have to be careful. Quote Link to comment Share on other sites More sharing options...
Homer Posted November 22, 2009 Share Posted November 22, 2009 As has been mentioned above, there is no loss of torque at any rpm, there is more at lower range, much more at high range. Response is far better (posibly the nicest improvement of all). The only thing to watch for is lean AFR's just after the crossover point. Plus the rapid building of torque when the 2nd turbo spools (though this is also part of the fun of BPU ) It really is a win-win situation. Quote Link to comment Share on other sites More sharing options...
AndyT Posted November 22, 2009 Share Posted November 22, 2009 This means don't do it on the cheap. Get the right gauges so you can evaluate what's going on. Mr Whiffin does complete conversion kits. Give the man a call. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 22, 2009 Author Share Posted November 22, 2009 Thanks for the comments. I have found teh Supra very easy to drive hard on country lanes across but guess I'll have to take it easy from now on then until I'm used to it again. AshBHp has driven my car ona few ocassions and says its in good shape but needs an oil leak adressed (which is being done also). So hopefully it should go as well as you all say. Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted November 22, 2009 Share Posted November 22, 2009 i see your going for smic/ i noticed a big difference with a bigger fmic hks type r. out of all the bpu bits this was the biggest gain in hp Quote Link to comment Share on other sites More sharing options...
DSK Posted November 22, 2009 Author Share Posted November 22, 2009 (edited) i see your going for smic/ i noticed a big difference with a bigger fmic hks type r. out of all the bpu bits this was the biggest gain in hp I would go for a FMIC but I do NOT want to loose the active spoiler (Supra needs it unless you are a straight line pilot) and neither do I want it locked in the down position (I drive my car regularly so need to clear speed bumps). Paul Whiffin's uprated SMIC is supposed to handle a single set up so should be more than adequate for BPU and either way will improve over my ageing stock unit. I'm certain that Paul Whiffin would not sell inferior products. Had this unti not been available I would have reluctantly had the spoiler locked in the down position and gone for a Gredyy/Blitz FMIC. Edited November 22, 2009 by DSK (see edit history) Quote Link to comment Share on other sites More sharing options...
Guigsy Posted November 22, 2009 Share Posted November 22, 2009 i highly doubt you will notice the difference in daily driving. I didnt notice. Nor did i notice it on the track. ive done days with and without it. Quote Link to comment Share on other sites More sharing options...
Homer Posted November 22, 2009 Share Posted November 22, 2009 DSK, IME you are absolutely right with the intercooler choice. The only reason an FMIC would provide more power would be due to the current (presumably original stock) one being shot to shreds. Also, with an FMIC it will induce more lag than a smaller side mount (simple physics really!). It was very noticable on my car after changing to a Greddy 3 row from a half decent side SMIC. Quote Link to comment Share on other sites More sharing options...
Scooter Posted November 22, 2009 Share Posted November 22, 2009 Response is far better (posibly the nicest improvement of all). That's the thing that I remember from my one BPU experience when I test drove a car for another member.............do you think that a decat'd but stock boost car would give the same improvement in response? Quote Link to comment Share on other sites More sharing options...
Homer Posted November 22, 2009 Share Posted November 22, 2009 That's the thing that I remember from my one BPU experience when I test drove a car for another member.............do you think that a decat'd but stock boost car would give the same improvement in response? Yes, but only to a very small degree. On a jspec car the exhaust/restrictor ring would have to be so restricted to hold off the peak power it'd seriously impact the responsiveness The responsiveness comes from having a higher flow exhaust system allowing quicker turbo spool and higher boost, but to reduce boost to stock levels adds nearly all of that restriction back in. End result will be much like stock anyway. Quote Link to comment Share on other sites More sharing options...
DSK Posted November 22, 2009 Author Share Posted November 22, 2009 Thanks Homer re: intercooler. Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted November 23, 2009 Share Posted November 23, 2009 yep i lost the spoiler had the electrics ripped out its permantely down.have to say i do miss it. if the smic is up to the job better again tdi didn give me that option good luck with the build Quote Link to comment Share on other sites More sharing options...
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