That was the first thing I noticed here on the forum. A lot of people throwing around all these big HP numbers. I think it started with all the "KITS" you can buy. I think it makes some people think they are missing something. If you haven't had your engine on an engine dyno, do you really know how much much power you have? If you know how much wheel HP it makes on a chassis dyno, thats how much it makes on THAT dyno, that day.

 

I would agree that 20% is being to kind. in reality probably closer to 17-18. Dynos aren't exactly perfect either.

HC even though you are using RWD mostly, all of the equipment is still there so there is loss regardless. It will never approach RWD, maybe not 20 and I agree with that b ut definitely not 15

 

Personally, I think it prudent to forget about flywheel estimates based on chassis dyno results.

As ttboost stated, unless the engine has been on an engine dyno, there is no accurate way to estimate flywheel numbers.
Too much conjecture about loss %'s.
(and too many inflated egos to go along with that)

Chassis dyno numbers are the best choice when comparing mods, as long as a baseline has been made.
Then simply add back the gained wheel hp to the stock flywheel rating, and you'll have a more fair estimate of flywheel hp.

 

Hey GBG,

All that being said, what did your car dyno AT THE WHEELS?
Just curious.

 

all that being said, do a 60-130 or run the 1/4 mile and your trap speed will tell you more about how much power you put down than any dyno.

 

Aahhh yes, the "asphalt dyno"!!!
PBox numbers DON"T lie. They all use the SAME satellites...sort of

 

sometimes reality hurts.

 

Yeah a real kick in the asphalt

 

am dying to know my real hp to the ground, but have no time to dyno guys give me an estimate. 01tt
lwfw
evo ics
kevins k16s hybrids
scargo headers
euriopipe loud
evo pipeing to turbos
evo air box
evo hoses
think thats it except for the ssk any guesses would be neat it feel fairly fast at this piont thanks steve

 

475-500 wheel HP?

 

gee i hope feels great sorry i forgot the giac flash which was to add 80 hp

 

Assumed that, with all those Mods and Hybrid turbos...

 

Bet your PBOX wont give you the same 60-130 @ 6000 ft in colorado as it would at sea level in VA. Not much better than the drag strip in that regard.

 

Bet your right!!! I don't want to find out!!!

 

ok how about adding so hp for race gas and in my race file (ALMOST ALWAYS) come on i beggin for more hp, he he