Guest BANDIT1 Posted October 23, 2009 Share Posted October 23, 2009 Folks , have read many replys on here and get conflicting results ! Supra TT 400bhp? Is as quite a few advertized cars for sale proclaim it possible to get 400bhp from a tt set up is that bpu only? Or is that possible from boost upgrade on standard jap spec turbos , im assuming its fly wheel bhp and defo not rwbhp? What realistic maximum reliable bhp could standard TT create? On purchasing such a car would you ask for a compression read out as regards its condition and print out as proof of actual bhp? Getting very close to purchasing a Supra now ! So would appreciate any comments on above greatly. Thanks. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted October 23, 2009 Share Posted October 23, 2009 You see in your post where it says BPU in blue letters, underlined? Click that and all will be revealed. 400 fly-wheel horsepower is possible at BPU. Quote Link to comment Share on other sites More sharing options...
Thorin Posted October 23, 2009 Share Posted October 23, 2009 Is as quite a few advertized cars for sale proclaim it possible to get 400bhp from a tt set up is that bpu only? Or is that possible from boost upgrade on standard jap spec turbos , im assuming its fly wheel bhp and defo not rwbhp? BPU is essentially just raising the boost on standard Turbos. Yes 400BHP is achievable at BPU though. But yes you're right, it's flywheel and not wheel HP. Quote Link to comment Share on other sites More sharing options...
martini Posted October 23, 2009 Share Posted October 23, 2009 BPU is essentially just raising the boost on standard Turbos. Yes 400BHP is achievable at BPU though. But yes you're right, it's flywheel and not wheel HP. Being as I am very much still learning... I take it HP through the wheel is less than as measured at the flywheel due to frictional forces and other mechanical energy losses? Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted October 23, 2009 Share Posted October 23, 2009 Being as I am very much still learning... I take it HP through the wheel is less than as measured at the flywheel due to frictional forces and other mechanical energy losses? HP at the flywheel is HP at the engine, and is estimated by taking the HP at the wheels and multiplying it by an 'accepted' coefficient taking into account transmission losses. HP at the wheels is the force the wheels exert on the road itself. You can also have HP at the hubs, which removes the elastic effect of tyres. Quote Link to comment Share on other sites More sharing options...
Nic Posted October 23, 2009 Share Posted October 23, 2009 (edited) At 1.2bar 380-400hp (flywheel) is achievable, with additional modifications such as cams, ECU, etc. max on stock j-spec turbos is around 430hp (flywheel). Dyno of mine when it was running stock turbos in parallel, with supporting mods. http://img194.imageshack.us/img194/9827/4295hpdyno.jpg Edited October 23, 2009 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Guest BANDIT1 Posted October 23, 2009 Share Posted October 23, 2009 Thanks we can always rely on knowledgable quick responses on here ! Appreciate it ! Ps would have been chuffed if it was rwbhp but didnt really think it was ! Thanks again ! Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 23, 2009 Share Posted October 23, 2009 That is a nice curve Nic - thats TTC mode right? Quote Link to comment Share on other sites More sharing options...
Guest EncoreWRC Posted October 23, 2009 Share Posted October 23, 2009 Just to add... and this is only from a tuners... not from my experience... Abbey MotorSport stated to me that with a HKS fuel Rail,UK spec injectors, 1 x walbro and a Boost Controller I would be able to push 500 - 550bhp from the stock engine.. at the fly.... I personally would say that for that figure I would have needed Cams and a De-cat too.... I was already running, lightened Flywheel, HKS Super Dragger, FCD, HKS Mushroom etc.... just small time stuff..... and even the 550bhp I feel would need a bit more work.... but they are Jap car specialists.... Who knows...!!!! Quote Link to comment Share on other sites More sharing options...
Jamesy Posted October 23, 2009 Share Posted October 23, 2009 Just to add... and this is only from a tuners... not from my experience... Abbey MotorSport stated to me that with a HKS fuel Rail,UK spec injectors, 1 x walbro and a Boost Controller I would be able to push 500 - 550bhp from the stock engine.. at the fly.... I personally would say that for that figure I would have needed Cams and a De-cat too.... I was already running, lightened Flywheel, HKS Super Dragger, FCD, HKS Mushroom etc.... just small time stuff..... and even the 550bhp I feel would need a bit more work.... but they are Jap car specialists.... Who knows...!!!! 550hp from stock turbos Abbey usually know their stuff Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted October 23, 2009 Share Posted October 23, 2009 Just to add... and this is only from a tuners... not from my experience... Abbey MotorSport stated to me that with a HKS fuel Rail,UK spec injectors, 1 x walbro and a Boost Controller I would be able to push 500 - 550bhp from the stock engine.. at the fly.... I personally would say that for that figure I would have needed Cams and a De-cat too.... I was already running, lightened Flywheel, HKS Super Dragger, FCD, HKS Mushroom etc.... just small time stuff..... and even the 550bhp I feel would need a bit more work.... but they are Jap car specialists.... Who knows...!!!! I've never once seen a car on stock sized (even hybrid) turbos make more than 460bhp at the flywheel. Why would you need an HKS fuel rail with UK spec injectors? Some very conflicting and frankly incorrect information there. Quote Link to comment Share on other sites More sharing options...
Nic Posted October 23, 2009 Share Posted October 23, 2009 Abbey MotorSport stated to me that with a HKS fuel Rail,UK spec injectors, 1 x walbro and a Boost Controller I would be able to push 500 - 550bhp from the stock engine.. at the fly.... From the stock engine yes, from the stock turbos no. Quote Link to comment Share on other sites More sharing options...
Guest EncoreWRC Posted October 23, 2009 Share Posted October 23, 2009 I had those concerns also... hence why I have stayed stock until you are back trading!!!! Quote Link to comment Share on other sites More sharing options...
Thorin Posted October 23, 2009 Share Posted October 23, 2009 Ps would have been chuffed if it was rwbhp but didnt really think it was ! If you read the US forums they'll tell you it is. Take all their figures with a pinch of salt and treat their RWHP figures as flywheel. Abbey MotorSport stated to me that with a HKS fuel Rail,UK spec injectors, 1 x walbro and a Boost Controller I would be able to push 500 - 550bhp from the stock engine.. at the fly.... Sounds like they've been reading Supraforums too. I've never once seen a car on stock sized (even hybrid) turbos make more than 460bhp at the flywheel. Why would you need an HKS fuel rail with UK spec injectors? Some very conflicting and frankly incorrect information there. One or two hybrid turbo set ups I do know have been pushing 500BHP, Terry S' old car for one, and Ian C's I believe was in the upper 400's before going single. But they were exceptions to the norm and many other supporting mods and rather special hybrids it seems. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted October 23, 2009 Share Posted October 23, 2009 One or two hybrid turbo set ups I do know have been pushing 500BHP, Terry S' old car for one, and Ian C's I believe was in the upper 400's before going single. But they were exceptions to the norm and many other supporting mods and rather special hybrids it seems. Before my time I'm afraid - that's impressive! Do you know if they used nitrous? Certainly those two guys know their Supras Quote Link to comment Share on other sites More sharing options...
Guest EncoreWRC Posted October 23, 2009 Share Posted October 23, 2009 As I said folks.... I was just given that info.. I don't necessarily believe in it... I have heard of the Twin Turbo's closing the 500bhp gap tho.... Supporting mods I would say are essential.... I cant see any other way of getting that power.... I would guess a good ignition amp would also be required to complement higher boost levels / better spark for the larger fuel requirement.... Quote Link to comment Share on other sites More sharing options...
Thorin Posted October 23, 2009 Share Posted October 23, 2009 Before my time I'm afraid - that's impressive! Do you know if they used nitrous? Certainly those two guys know their Supras No nitrous. Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted October 23, 2009 Share Posted October 23, 2009 550hp from stock turbos Abbey usually know their stuff they also know the colour of the green stuff £££££ Quote Link to comment Share on other sites More sharing options...
Guest EncoreWRC Posted October 23, 2009 Share Posted October 23, 2009 Very very true Quote Link to comment Share on other sites More sharing options...
Guest BANDIT1 Posted October 23, 2009 Share Posted October 23, 2009 Just read info on bpu very informative that and clears up many questions ! Thanks for responses folks appreciate it ! Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 23, 2009 Share Posted October 23, 2009 Just to add... and this is only from a tuners... not from my experience... Abbey MotorSport stated to me that with a HKS fuel Rail,UK spec injectors, 1 x walbro and a Boost Controller I would be able to push 500 - 550bhp from the stock engine.. at the fly.... I personally would say that for that figure I would have needed Cams and a De-cat too.... I was already running, lightened Flywheel, HKS Super Dragger, FCD, HKS Mushroom etc.... just small time stuff..... and even the 550bhp I feel would need a bit more work.... but they are Jap car specialists.... Who knows...!!!! Might do on abbeys dyno, its a hub dyno the same as thors and tdi's;) Quote Link to comment Share on other sites More sharing options...
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