some amazing awd numbers ... - Saab Performance Bulletin Board - Saabnet.com
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In order ... awd, c900, rwd/audi-fwd, 9000/NG's/9-X
The C900 ranks high because it has 90 deg torque transfer AND chain drive.
rwd -> I have lots of dyno data on a certain rwd, 255 at crank stock. Most dyno runs show 221 stock rwhp, thats 13% loss, and correction factor from wheel-to-crank is 1.15 .
awd -> Dyno run on 227 hp wrx showed 147 awhp (SCC mag, ct). Thats 35% loss!!! So correction factor is 1.54 to get eng hp. I have seen other dyno runs for awd that imply 30-35% losses.
fwd-T -> transverse mounts are best, figure about 10% loss, 1.11 factor.
fwd-L -> long'l engine(audi), should be like rwd at 13%
C900 -> add some to rwd for chain, guess 16%, factor about 1.19
posted by 63.10.14...
Posts in this Thread:
- What do you suppose the HP loss is on an AWD car is?, Talladega900, Fri, 14 Sep 2001 10:35:48
- Re: What do you suppose the HP loss is on an AWD car is?, m, Fri, 14 Sep 2001 23:30:46
- some amazing awd numbers ..., Kevin K , Fri, 14 Sep 2001 23:00:38 <-- Viewing This Message
- Just to give you an idea.., George D, Fri, 14 Sep 2001 19:14:44
- you get loss either way, dave n, Fri, 14 Sep 2001 17:02:08
- how does one dyno a AWD car?? nm, Jordan, Fri, 14 Sep 2001 15:33:40
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