Guest Geneb Posted May 29, 2007 Share Posted May 29, 2007 what is the average BHP at 1.0bar BPU and at 1.2bar BPU Thx andy Quote Link to comment Share on other sites More sharing options...
Guest Chumpalot Posted May 29, 2007 Share Posted May 29, 2007 I'd be interested to know this also. Haven't had a chance to get mine onto a rolling road yet. Quote Link to comment Share on other sites More sharing options...
hadyn Posted May 29, 2007 Share Posted May 29, 2007 Guess here, but 360bhp @ fly at 1 bar, 390bhp @ the fly 1.2bar? Quote Link to comment Share on other sites More sharing options...
michael Posted May 29, 2007 Share Posted May 29, 2007 The only list I know of is the Thor one MonkeyMark put together, take it with a pinch of salt but it might give you an idea: http://www.mkivsupra.net/vbb/showpost.php?p=347880&postcount=8 Would be nice to have a bigger list with all the numbers from various dynos on it for comparison. Quote Link to comment Share on other sites More sharing options...
Guest Geneb Posted May 29, 2007 Share Posted May 29, 2007 so 480bhp with stock japs is out of the question even with aftermarket ecu? Quote Link to comment Share on other sites More sharing options...
hadyn Posted May 29, 2007 Share Posted May 29, 2007 Yes. Quote Link to comment Share on other sites More sharing options...
Mike_Mac Posted May 29, 2007 Share Posted May 29, 2007 Yes. Unless your car has a 'one-off carbon-fibre' bodykit and an external dump-valve of course. Quote Link to comment Share on other sites More sharing options...
Guest Geneb Posted May 29, 2007 Share Posted May 29, 2007 Unless your car has a 'one-off carbon-fibre' bodykit and an external dump-valve of course. Fook who told you it was me who bought that supreme one off car Quote Link to comment Share on other sites More sharing options...
johnnyknox Posted May 29, 2007 Share Posted May 29, 2007 so 480bhp with stock japs is out of the question even with aftermarket ecu? No, not out of the question Quote Link to comment Share on other sites More sharing options...
Thorin Posted May 29, 2007 Share Posted May 29, 2007 No, not out of the question Maybe if you fitted nitrous, but no way you're gonna get 480BHP on stock turbo's. Quote Link to comment Share on other sites More sharing options...
johnnyknox Posted May 29, 2007 Share Posted May 29, 2007 Maybe if you fitted nitrous, but no way you're gonna get 480BHP on stock turbo's. Mine did Quote Link to comment Share on other sites More sharing options...
Thorin Posted May 29, 2007 Share Posted May 29, 2007 Mine did Stock? or hybrids? Quote Link to comment Share on other sites More sharing options...
Pete Posted May 29, 2007 Share Posted May 29, 2007 There's a few other factors here chums. 1.2 bar using a boost controller, or from a JSpec naturally spinning from decatting? Fuelling modded or as stock over fuelling madly? JSpec compared to UK spec? Not to mention on the same rollers. Quote Link to comment Share on other sites More sharing options...
jaymdee Posted May 29, 2007 Share Posted May 29, 2007 Hi Andy, A rough guide is 10bhp increase for every psi increase in boost. 0.2Bar = 3psi, so increasng from 0.8Bar (stockish) to 1.0Bar would be a gain of approx 30bhp, same for 1.0 - 1.2. Assuming stock car is 320bhp, then 1.0 would be 350bhp and 1.2 would be 380bhp what is the average BHP at 1.0bar BPU and at 1.2bar BPU Thx andy Quote Link to comment Share on other sites More sharing options...
Jake Posted May 29, 2007 Share Posted May 29, 2007 When JohhnKonx says his made 480bhp he must mean at Thor. Quote Link to comment Share on other sites More sharing options...
Guest Phillw454 Posted May 29, 2007 Share Posted May 29, 2007 I think you may be able to get 480 on j spec turbos but there would be a big risk of them going pop as i think youd have to run around 1.4 bar. Quote Link to comment Share on other sites More sharing options...
johnnyknox Posted May 29, 2007 Share Posted May 29, 2007 Stock? or hybrids? They are stock turbos Full Decat FMIC Greddy Profec B Boost Controller @ 1.2bar FCD This is Fly Wheel power we are talking about right? I got 413rhhp @ Thor...account for about a 20% loss through drivetrain etc and it works out at about 490bhp at the fly Quote Link to comment Share on other sites More sharing options...
johnnyknox Posted May 29, 2007 Share Posted May 29, 2007 When JohhnKonx says his made 480bhp he must mean at Thor. lol...indeed Jake as we discussed a while back Quote Link to comment Share on other sites More sharing options...
Jake Posted May 29, 2007 Share Posted May 29, 2007 They are stock turbos Full Decat FMIC Greddy Profec B Boost Controller FCD This is Fly Wheel power we are talking about right? I got 413rhhp @ Thor...account for about a 20% loss through drivetrain etc and it works out at about 490bhp at the fly IF you allow 20% drivetrain losses from the flywheel to the HUBS then 413rhhp = 518.75 flywheel. Which is a nonsense figure on stock turbos and impossible for stock injectors. Quote Link to comment Share on other sites More sharing options...
johnnyknox Posted May 29, 2007 Share Posted May 29, 2007 IF you allow 20% drivetrain losses from the flywheel to the HUBS then 413rhhp = 518.75 flywheel. Which is a nonsense figure on stock turbos and impossible for stock injectors. It's 495.6 Jake Quote Link to comment Share on other sites More sharing options...
Jake Posted May 29, 2007 Share Posted May 29, 2007 What is? Quote Link to comment Share on other sites More sharing options...
CJ Posted May 29, 2007 Share Posted May 29, 2007 It's 495.6 Jake There are lies, damn lies and RR figures Quote Link to comment Share on other sites More sharing options...
johnnyknox Posted May 29, 2007 Share Posted May 29, 2007 What is? 413 plus the 20% is 495.6 Quote Link to comment Share on other sites More sharing options...
johnnyknox Posted May 29, 2007 Share Posted May 29, 2007 There are lies, damn lies and RR figures Well maybe so...but I'm just saying...that's what the graph stated. I am starting to wonder what the point is, in getting your car dyno'd now. Quote Link to comment Share on other sites More sharing options...
Jake Posted May 29, 2007 Share Posted May 29, 2007 413 plus the 20% is 495.6 Yes it is, but that's not how you workout drive drivetrain losses. You need to take the percentage from the flywheel figure rather than adding it to the wheel figure (or the hub figure as you're doing) 516.25 less 20% = 413 518.75 less 20% = 415 (I was using the 415rhhp figure, that you used to have in your Sig, when I worked it out earlier) Quote Link to comment Share on other sites More sharing options...
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