HP to WHP

NateS · #1 03-02-2006, 11:54 PM

I was wondering if anyone can fill me in on how much HP is lost when converting to WHP for a gsx. I am guessing that an awd car would lose more than a fwd car? I have heard people try to argue both ways so I thought I would ask people who actually know what they are talking about. Thank you.

Blackcrow64 · #2 03-03-2006, 02:18 AM

I was told that you lose about 10% of your hp from the crank to the wheels in an AWD car. I have no idea how accurate that really is though...

SLoe · #3 03-03-2006, 05:39 AM

^Really? That sounds kind of low to me. A RWD typically loses 20-25%.

Moppie · #4 03-03-2006, 05:50 AM

Between 20-30% is normaly for a modern AWD set up, older systems lose more.
A good FWD set up will lose around 12-20%, and a RWD set up around 15-30%.

If the eclipse drive train is closely related to the Evolutions and Gallant VR4s then something like 22% would be a good number to use to get a good idea.

SLoe · #5 03-03-2006, 06:12 AM

Quote:

Originally Posted by Moppie

Between 20-30% is normaly for a modern AWD set up, older systems lose more.
A good FWD set up will lose around 12-20%, and a RWD set up around 15-30%.

If the eclipse drive train is closely related to the Evolutions and Gallant VR4s then something like 22% would be a good number to use to get a good idea.

That sounds better. Good Mornin Moppie!!!

Blackcrow64 · #6 03-03-2006, 08:52 AM

Wow... That sucks, I didn't realize it was that much... Can anything be changed in the drivetrain to reduce that number?

XeVeNskyLiNE · #7 03-03-2006, 09:51 AM

Carbon or lightweight driveshaft maybe?

2of9 · #8 03-03-2006, 10:02 AM

it is around the 15-20% for awd, but just doing hp wise, im guessin 20-30 hp wheel lose average.

NateS · #9 03-04-2006, 11:06 PM

Thank for the input everyone.

95_GSX · #10 03-04-2006, 11:11 PM

Quote:

Originally Posted by Blackcrow64

Wow... That sucks, I didn't realize it was that much... Can anything be changed in the drivetrain to reduce that number?

Fully Synthetic Oils and less rotating mass(light wheels and lighter driveshaft).

SLoe · #11 03-04-2006, 11:24 PM

Quote:

Originally Posted by 95_GSX

Fully Synthetic Oils and less rotating mass(light wheels and lighter driveshaft).

That's about all you can do.

blk_srt · #12 03-04-2006, 11:27 PM

Lighten up the flywheel would help a bit but youre going to see the most inprovement by switching fluids, They've done a number of tests and in an ls1 camaro they picked up 10 extra hp at the wheels by switching to royal purple all around

95_GSX · #13 03-04-2006, 11:45 PM

Quote:

Originally Posted by pr_ricer

Lighten up the flywheel would help a bit but youre going to see the most inprovement by switching fluids, They've done a number of tests and in an ls1 camaro they picked up 10 extra hp at the wheels by switching to royal purple all around

I am a believer in Amsoil(amsoil has a percentage gain thats something like 5-15% dont remeber for sure), but I am currently running BG Syncoshift II in my tranny and TC. I need to change the rear end fluid soon, but it takes money and my tools. I currently have neither.

blk_srt · #14 03-04-2006, 11:52 PM

http://www.royalpurple.com/techrp/summary.html
I've heard nothing but praise for the stuff so I am going to give it a try

95_GSX · #15 03-05-2006, 12:01 AM

Quote:

I've heard nothing but praise for the stuff so I am going to give it a try

I have heard good things about Royal Purple too(I have never tried it though), I personally still like Amsoil.

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