number all over the place (AWHP)
number all over the place (AWHP)
I did some search this week end before moving ahead and add HP
But I saw number all over the place.
Vishnu advertised 90Hp with just a reflash (no cat back exhaust down pipe?
this seems pretty high.
A lot of vendors advertised 15Hp for their down pipe
50HP for the exhaust
I knom number does not add but even nearly 150 hp with a few mods.
This seems completely exagerated.
80 for all of the above seems more logical
however final question:
Is the vishnu reflash worth the extra (+100 to $200)
Is the HKS hi power not too loud for the cop
Is a downpipe worth the money? (if it give me only 5HP I won't go for it)
Thanks in adavance for your help guys
But I saw number all over the place.
Vishnu advertised 90Hp with just a reflash (no cat back exhaust down pipe?
this seems pretty high.
A lot of vendors advertised 15Hp for their down pipe
50HP for the exhaust
I knom number does not add but even nearly 150 hp with a few mods.
This seems completely exagerated.
80 for all of the above seems more logical
however final question:
Is the vishnu reflash worth the extra (+100 to $200)
Is the HKS hi power not too loud for the cop
Is a downpipe worth the money? (if it give me only 5HP I won't go for it)
Thanks in adavance for your help guys
i dont know what shops are local to you, but if you can seek out a proper dyno tune... rather than shelf reflash...
fyi - in Australia our X (GSR) dyno's as:
stock - 165 atwkw
3" exhaust - 185 atwkw
tune with muffler mod - ~200 atwkw
tune with 3" exhaust - ~230 atwkw
fyi - in Australia our X (GSR) dyno's as:
stock - 165 atwkw
3" exhaust - 185 atwkw
tune with muffler mod - ~200 atwkw
tune with 3" exhaust - ~230 atwkw
especially beeing in denver (alt 5200ft or 1600m)
for me a proper tuning is done on the dyno reading number and adjusting
I come from the corvette community and this is always done this way
I am surprise in the Evo community so many don't do it this way.
for me a proper tuning is done on the dyno reading number and adjusting
I come from the corvette community and this is always done this way
I am surprise in the Evo community so many don't do it this way.
dyno comparisons are most useful when measuring before-and-after power difference on a single vehicle, ideally under the same conditions or same day.
dyno comparisons become less useful when you start introducing different vehicles, different conditions, different operators, different correction factors, conversions from wheel-hp to crank-hp, etc.
sorry if you knew all of this already... now, to your question:
odds are Vishnu is claiming the mythical crank horsepower number(and then some). many of us still do the old fashioned tweak-test-repeat(whether on dyno or "closed course"), however in the forced induction world, generally speaking, it is pretty easy to get a appreciable gain from something that may be only 80% optimized as opposed to the NA world where you have to fight tooth and nail to get every pony. and so the cookie-cutter flash was born. (also good for people who don't want to continually tweak, or don't want to pay/don't have access to a custom tune).
If money is no object, and a good tuner is nearby, I would go the custom route that you are familiar with. If money is a consideration (when isn't it?) or a good tuner cannot be found, the tools to tune yourself (minimum of a wideband and openport2 cable) can be had for about the same price as a good custom tune. if all else fails, you can go the cookie cutter flash route, given the aforementioned caveats.
Evo-land is pretty self-tune friendly... when I had my 1.8T VW, the only option was cookie-cutter flash, and then "tuning"(read:tricking) your hardware to make the flash happy for anything that was outside the standard parameters (I believe it is still this way).
dyno comparisons become less useful when you start introducing different vehicles, different conditions, different operators, different correction factors, conversions from wheel-hp to crank-hp, etc.
sorry if you knew all of this already... now, to your question:
odds are Vishnu is claiming the mythical crank horsepower number(and then some). many of us still do the old fashioned tweak-test-repeat(whether on dyno or "closed course"), however in the forced induction world, generally speaking, it is pretty easy to get a appreciable gain from something that may be only 80% optimized as opposed to the NA world where you have to fight tooth and nail to get every pony. and so the cookie-cutter flash was born. (also good for people who don't want to continually tweak, or don't want to pay/don't have access to a custom tune).
If money is no object, and a good tuner is nearby, I would go the custom route that you are familiar with. If money is a consideration (when isn't it?) or a good tuner cannot be found, the tools to tune yourself (minimum of a wideband and openport2 cable) can be had for about the same price as a good custom tune. if all else fails, you can go the cookie cutter flash route, given the aforementioned caveats.
Evo-land is pretty self-tune friendly... when I had my 1.8T VW, the only option was cookie-cutter flash, and then "tuning"(read:tricking) your hardware to make the flash happy for anything that was outside the standard parameters (I believe it is still this way).
Last edited by derekste; Apr 12, 2010 at 10:20 AM. Reason: add more info
dyno comparisons are most useful when measuring before-and-after power difference on a single vehicle, ideally under the same conditions or same day.
dyno comparisons become less useful when you start introducing different vehicles, different conditions, different operators, different correction factors, conversions from wheel-hp to crank-hp, etc.
sorry if you knew all of this already... now, to your question:
odds are Vishnu is claiming the mythical crank horsepower number(and then some). many of us still do the old fashioned tweak-test-repeat(whether on dyno or "closed course"), however in the forced induction world, generally speaking, it is pretty easy to get a appreciable gain from something that may be only 80% optimized as opposed to the NA world where you have to fight tooth and nail to get every pony. and so the cookie-cutter flash was born. (also good for people who don't want to continually tweak, or don't want to pay/don't have access to a custom tune).
If money is no object, and a good tuner is nearby, I would go the custom route that you are familiar with. If money is a consideration (when isn't it?) or a good tuner cannot be found, the tools to tune yourself (minimum of a wideband and openport2 cable) can be had for about the same price as a good custom tune. if all else fails, you can go the cookie cutter flash route, given the aforementioned caveats.
Evo-land is pretty self-tune friendly... when I had my 1.8T VW, the only option was cookie-cutter flash, and then "tuning"(read:tricking) your hardware to make the flash happy for anything that was outside the standard parameters (I believe it is still this way).
dyno comparisons become less useful when you start introducing different vehicles, different conditions, different operators, different correction factors, conversions from wheel-hp to crank-hp, etc.
sorry if you knew all of this already... now, to your question:
odds are Vishnu is claiming the mythical crank horsepower number(and then some). many of us still do the old fashioned tweak-test-repeat(whether on dyno or "closed course"), however in the forced induction world, generally speaking, it is pretty easy to get a appreciable gain from something that may be only 80% optimized as opposed to the NA world where you have to fight tooth and nail to get every pony. and so the cookie-cutter flash was born. (also good for people who don't want to continually tweak, or don't want to pay/don't have access to a custom tune).
If money is no object, and a good tuner is nearby, I would go the custom route that you are familiar with. If money is a consideration (when isn't it?) or a good tuner cannot be found, the tools to tune yourself (minimum of a wideband and openport2 cable) can be had for about the same price as a good custom tune. if all else fails, you can go the cookie cutter flash route, given the aforementioned caveats.
Evo-land is pretty self-tune friendly... when I had my 1.8T VW, the only option was cookie-cutter flash, and then "tuning"(read:tricking) your hardware to make the flash happy for anything that was outside the standard parameters (I believe it is still this way).
As far as tuning myself I am a little concern.
I hope we had one in Denver which I am not sure.
but apprently some good gouru are coming sometimes to viist us.
Thanks for everything
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