Extreme Tuners U.S. Evo Build
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From: Raleigh, Transplanted from Toronto, Canada
An EVO 8/9 usually does about 240-260 on a dynojet. Are you trying to tell me that an EVO 8/9 only has approx. 250 crank horsepower, when Mitsu rates it at 287 crank HP and most people say that its underrated??
Not trying to start a dyno debate, just trying to understand your reasoning, as I have never heard that claim before.
Last edited by Boosted Tuning; Jun 17, 2012 at 12:39 AM. Reason: added more
I believe a lot of people not agree with you on that........
An EVO 8/9 usually does about 240-260 on a dynojet. Are you trying to tell me that an EVO 8/9 only has approx. 250 crank horsepower, when Mitsu rates it at 287 crank HP and most people say that its underrated??
Just trying to understand your reasoning.
An EVO 8/9 usually does about 240-260 on a dynojet. Are you trying to tell me that an EVO 8/9 only has approx. 250 crank horsepower, when Mitsu rates it at 287 crank HP and most people say that its underrated??
Just trying to understand your reasoning.
I believe a lot of people may not agree with you on that........
An EVO 8/9 usually does about 240-260 on a dynojet. Are you trying to tell me that an EVO 8/9 only has approx. 250 crank horsepower, when Mitsu rates it at 287 crank HP and most people say that its underrated??
Not trying to start a dyno debate, just trying to understand your reasoning, as I have never heard that claim before.
An EVO 8/9 usually does about 240-260 on a dynojet. Are you trying to tell me that an EVO 8/9 only has approx. 250 crank horsepower, when Mitsu rates it at 287 crank HP and most people say that its underrated??
Not trying to start a dyno debate, just trying to understand your reasoning, as I have never heard that claim before.
Good point this, for us european guys it's always difficult to compare results, as, using here mainly eddy current dynos, we have, as example, a stock evo producing about 215/220 whp, with a driveline dissipation of about 60/70 hp ( but this is dependant from where, in rpm range, the max power is achieved, on a modifed engine it could be much more, if max hp are obtained higher in rpm range ) for a total of 280 crank hp, our results usually are really comparable to the Buschur's Mustang dyno......
Yes very good points raised here guys. The numbers you both give are fine as they are on stock engines with low power rating. The losses you both speak of are very close to reality.
Where some dyno manufacturers numbers and ET have come unstuck is in scaling losses. For example Spyros is trying to say a 1600bhp flywheel figure with 400bhp transmission losses. But even worse he is using and quoted as saying that stock evo loss % you just mentioned but then scaling it but at the same time using a hub dyno with no wheels and the inertia of 4x18" wheels is the biggest part of the loss. So really he's done himself no favours there. But hey fine if people want to buy into that then that's cool for them.
David Buschur i think many can accept is a no BS kind of guy and his wheel figures are just that, wheel figures. He recently said that a smidge over 700whp on his dyno would be about 793 on a dynojet. https://www.evolutionm.net/forums/10157774-post9.html
Again this makes sense because you are seeing about 80bhp more which is the loss from the original scale factor at 230w/280f that was mentioned by you guys a second ago plus a little bit more for scales trans losses.
All i'm trying to say is the 650+fwhp needs to be looked at realistically and not someone taking a dynojet figure then adding yet another 20%. I'd prefer to see this test done on either an engine dyno or a mustang. Or better still any chassis dyno with a coastdown loss test.
Before i get called a hater of ET or Dynojet, can i add i own a dynojet chassis dyno and face this number disparity on a daily basis.
Yes very good points raised here guys. The numbers you both give are fine as they are on stock engines with low power rating. The losses you both speak of are very close to reality.
Where some dyno manufacturers numbers and ET have come unstuck is in scaling losses. For example Spyros is trying to say a 1600bhp flywheel figure with 400bhp transmission losses. But even worse he is using and quoted as saying that stock evo loss % you just mentioned but then scaling it but at the same time using a hub dyno with no wheels and the inertia of 4x18" wheels is the biggest part of the loss. So really he's done himself no favours there. But hey fine if people want to buy into that then that's cool for them.
David Buschur i think many can accept is a no BS kind of guy and his wheel figures are just that, wheel figures. He recently said that a smidge over 700whp on his dyno would be about 793 on a dynojet. https://www.evolutionm.net/forums/10157774-post9.html
Again this makes sense because you are seeing about 80bhp more which is the loss from the original scale factor at 230w/280f that was mentioned by you guys a second ago plus a little bit more for scales trans losses.
All i'm trying to say is the 650+fwhp needs to be looked at realistically and not someone taking a dynojet figure then adding yet another 20%. I'd prefer to see this test done on either an engine dyno or a mustang. Or better still any chassis dyno with a coastdown loss test.
Before i get called a hater of ET or Dynojet, can i add i own a dynojet chassis dyno and face this number disparity on a daily basis.
Where some dyno manufacturers numbers and ET have come unstuck is in scaling losses. For example Spyros is trying to say a 1600bhp flywheel figure with 400bhp transmission losses. But even worse he is using and quoted as saying that stock evo loss % you just mentioned but then scaling it but at the same time using a hub dyno with no wheels and the inertia of 4x18" wheels is the biggest part of the loss. So really he's done himself no favours there. But hey fine if people want to buy into that then that's cool for them.
David Buschur i think many can accept is a no BS kind of guy and his wheel figures are just that, wheel figures. He recently said that a smidge over 700whp on his dyno would be about 793 on a dynojet. https://www.evolutionm.net/forums/10157774-post9.html
Again this makes sense because you are seeing about 80bhp more which is the loss from the original scale factor at 230w/280f that was mentioned by you guys a second ago plus a little bit more for scales trans losses.
All i'm trying to say is the 650+fwhp needs to be looked at realistically and not someone taking a dynojet figure then adding yet another 20%. I'd prefer to see this test done on either an engine dyno or a mustang. Or better still any chassis dyno with a coastdown loss test.
Before i get called a hater of ET or Dynojet, can i add i own a dynojet chassis dyno and face this number disparity on a daily basis.
I have offered khmerpimpin to help with the dyno testing if he wants. I use a Dynojet 424LINX dyno. If I do the testing with khmerpimpin, I can also do a coastdown drivetran loss test.
Last edited by Boosted Tuning; Jun 17, 2012 at 02:44 AM.
Numbers aside i'm guessing you'll have a really good idea what sort of numbers all the various turbo's see on your dyno and will be able to give a quite impartial judgement of comparison of the ET unit to others? Like say a Black vs this vs a gt30 etc?
Just out of interest, what coastdown losses do you see on a stock evo vs say an 800bhp one? Its proving very hard to find anyone who will offer up this information.
Oi you lot all this dyno talk is
!
(PS - I agree with Tim - Dynojet is definitely closer to hp at the fly!)
Thanks to the people who cleared it up that the Extreme Tuners 58mm sizing actually refers to the inducer size and not the exducer (that makes a hell of a lot more sense now) and I can see why the claim it being a 650bhp turbo.
I have a dual ball bearing FP Black on my car - maybe I should order one for a back to back comparison?!
!
(PS - I agree with Tim - Dynojet is definitely closer to hp at the fly!)Thanks to the people who cleared it up that the Extreme Tuners 58mm sizing actually refers to the inducer size and not the exducer (that makes a hell of a lot more sense now) and I can see why the claim it being a 650bhp turbo.
I have a dual ball bearing FP Black on my car - maybe I should order one for a back to back comparison?!
Next time I have an EVO on the dyno, Ill try to do a coastdown test, if I have time and remember to.
Sorry for the off topic.
Last edited by Boosted Tuning; Jun 17, 2012 at 02:58 AM.



