| Author | Message | ||
| William H (Countachxx)
Intermediate Member Username: Countachxx Post Number: 1208 Registered: 2-2001 |
It would b interesting to get some measurements on 110 octane and also after I cool down the inkae a little more with thermal paint | ||
| Christian (Christiank)
Member Username: Christiank Post Number: 371 Registered: 1-2001 |
Dave: OK good, let me know if you like it :-) | ||
| Mitchell L. Davidson (Jussumfastgi)
Junior Member Username: Jussumfastgi Post Number: 181 Registered: 4-2002 |
Ok, But... WHO CARES WHAT YOUR FWHP IS WHEN THE ONLY HP THAT YOU CAN FEEL IS YOUR RWHP? I have never understood this... | ||
| Dave Trbizan (Davidt)
New member Username: Davidt Post Number: 25 Registered: 1-2002 |
Christian, The Mondial should be at Tony's by Friday at 5:00PM. I'll be there to help him unload. Needless to say.....I'll be up most of the night! Cheers | ||
| Christian (Christiank)
Member Username: Christiank Post Number: 370 Registered: 1-2001 |
Bill: Your are welcome. Just try the fuel mixture with the Toluene and Xylene. I tried it on my Porsche and that mixture is fantastic. Your car will run much smoother and it brings 5 to 10 % more performance. Will clean the engine at the same time. The web page owner is Danno and he is a genius when it comes to Porsche 944 turbo. He will have his own company soon and be selling stuff at http://www.gururacing.net/test.html | ||
| William H (Countachxx)
Intermediate Member Username: Countachxx Post Number: 1207 Registered: 2-2001 |
Hmm at 20% driveline loos the 512TR is making nearly 470 hp at the engine. which means all the stuff I did raised the hp by 52hp  | ||
| Bill Sebestyen (Bill308)
Member Username: Bill308 Post Number: 294 Registered: 5-2001 |
Christian, thanks for the link. There's some meaty information in the Fuel FAQ and Physics of Racing sections. | ||
| Hubert Otlik (Hugh)
Junior Member Username: Hugh Post Number: 173 Registered: 1-2002 |
Ask any engine builder, average drivetrain loss is 20%, period. If there are discrepancies b/w flywheel and wheel horespower, it's b/c of manufacture fudging of the figures, honestly. Fro example, Nissan claims that the R34 skylines have 278ps, stock, they routinly dyno close to 270hp. If your cars drivetrain losses are more than 20% in stock form, either 1) your car has a mechanical problem, or 2) the manufacture fudged the flywheel numbers. -hubert | ||
| Christian (Christiank)
Member Username: Christiank Post Number: 368 Registered: 1-2001 |
We would like to know drivetrain loss because the maufacturer only states flywheel HP. I am using 15 % for stick shift and 20 % for automatic as a ballpark number. What you do is you divide the wheel HP with (100 minus 15 or 20) and multiply by 100. Simple mathematic but still many do it wrong. | ||
| Mitchell L. Davidson (Jussumfastgi)
Junior Member Username: Jussumfastgi Post Number: 179 Registered: 4-2002 |
Umm.... Why use a different loss? What does it matter what HP your engine is making, when the only number that matters is the one at your wheels. Uhg... If a car increases HP by upping engine HP or by reducing drivetrain losses, it does the same thing and doesn't matter to me. What would you rather have, a 600hp enigne or a 450hp engine when both make 401hp at the wheels? ....The 450hp engine will get better gas mileage and wear less... Just a thought. | ||
| Rob Lay (Rob328gts)
Board Administrator Username: Rob328gts Post Number: 1925 Registered: 12-2000 |
Norwood uses 16% loss. | ||
| Harlan Mott (Hmott3)
Junior Member Username: Hmott3 Post Number: 164 Registered: 12-2001 |
christian, That 19.9% drivetrain loss is assuming ferrari gives acurate numbers on brake hp, which I think is suspect. | ||
| Christian (Christiank)
Member Username: Christiank Post Number: 360 Registered: 1-2001 |
Look at this in order to get a feeling for drivetrain loss on a Ferrari. I think its more than 15 %. http://members.rennlist.org/951_racerx/ Click on dyno charts F40. | ||
| Harlan Mott (Hmott3)
Junior Member Username: Hmott3 Post Number: 161 Registered: 12-2001 |
He did say "his baby", after the "I may sell my countach" thread I bet its his 512tr. | ||
| Mr. Doody (Doody)
Member Username: Doody Post Number: 337 Registered: 11-2001 |
william - what car did you dyno? the 512TR? the race car? doody. | ||
| William H (Countachxx)
Intermediate Member Username: Countachxx Post Number: 1206 Registered: 2-2001 |
There was a "shock"dyno at the last Pocono event I went to. This contraption is on a trailer & u drive your car on, they tie it down & the rear wills spin a large drum which is connected to a computer. SO I was making 390hp at the rear wheels. The operator told me I could expect 15-20% driveline hp loss, he thought closer to 15% for a Ferrari. so that works out to almost 450hp at the engine or about 22hp more than stock, which is rated at 428hp. I added a tubi & removed the cats & wrapped part of the intake system to cool the incoming air. Gonna do a little more work on coolingthe air then try the dyno again I hope |