30 hp for 8k
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cjv,
I agree with everything you say. The problem is no one is following a strict standard. If everyone used the same dyno AND followed all the other setup conditions EXACTLY, then dyno runs MAY be SLIGHTLY useful for comparison (i.e., there are still many other factors not considered, like rotation mass, gearing, turbo lag, drag, past ECU training history, weight, etc. For example, the CGT may look "slow" on a dyno but, as you know, it's very fast).
Because of the variables, dyno runs are causing much confusion on this board, especially when the dyno HP/TQ variations are far more than the kit differences. In my experience, it's best to compare cars side-by-side using the same gas after extensive ECU training. You'll know the other car is faster if it walks away by 10 cars lengths before 150 MPH, regardless of the driver. My Ruf Turbo R can CONSISTENTLY do this against a stock Viper or stock Turbo. The two drivers only needs to floor it, shift close to redline, and shift in about .5 seconds (most people can do that).
BTW, I always train the ECU before a track event with 100 octane. I recall 210+ MPH Ruf Racer does this also.
Finally, do you know how many car lengths your car would be ahead of a 550 HP Ruf by 150 MPH? That would be very interesting to know, regardless of dyno HP/TQ.
I agree with everything you say. The problem is no one is following a strict standard. If everyone used the same dyno AND followed all the other setup conditions EXACTLY, then dyno runs MAY be SLIGHTLY useful for comparison (i.e., there are still many other factors not considered, like rotation mass, gearing, turbo lag, drag, past ECU training history, weight, etc. For example, the CGT may look "slow" on a dyno but, as you know, it's very fast).
Because of the variables, dyno runs are causing much confusion on this board, especially when the dyno HP/TQ variations are far more than the kit differences. In my experience, it's best to compare cars side-by-side using the same gas after extensive ECU training. You'll know the other car is faster if it walks away by 10 cars lengths before 150 MPH, regardless of the driver. My Ruf Turbo R can CONSISTENTLY do this against a stock Viper or stock Turbo. The two drivers only needs to floor it, shift close to redline, and shift in about .5 seconds (most people can do that).
BTW, I always train the ECU before a track event with 100 octane. I recall 210+ MPH Ruf Racer does this also.
Finally, do you know how many car lengths your car would be ahead of a 550 HP Ruf by 150 MPH? That would be very interesting to know, regardless of dyno HP/TQ.
Last edited by Bill S; Jun 27, 2004 at 10:48 PM.
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Bill,
I have never competed against any Ruf car. Thus, I don't know how it compares. My car takes just under eighteen seconds to go from a standing start to 180 mph. The highest speed attained using GPS has been 204 mph. On paper with gearing @ 8100 rpm's she should do 216 mph. The 204 was attained @ 7600 rpm's so I am not very confident she has anymore than 5 mph left in her under good conditions.
Regardless of hp/torque, (I am guessing with the 3.6 L motor I am producing about 200 additional hp and with the 4.0 L motor about 450 additional hp than the Ruf 550) my car was designed and geared for 200 mph top speed. I believe the Ruf would be at a distinct disadvantage from 0-200 mph due to gearing and weight. There is no doubt in my mind that on the German Autobahn I would be moving over for the faster Ruf cars.
I have never competed against any Ruf car. Thus, I don't know how it compares. My car takes just under eighteen seconds to go from a standing start to 180 mph. The highest speed attained using GPS has been 204 mph. On paper with gearing @ 8100 rpm's she should do 216 mph. The 204 was attained @ 7600 rpm's so I am not very confident she has anymore than 5 mph left in her under good conditions.
Regardless of hp/torque, (I am guessing with the 3.6 L motor I am producing about 200 additional hp and with the 4.0 L motor about 450 additional hp than the Ruf 550) my car was designed and geared for 200 mph top speed. I believe the Ruf would be at a distinct disadvantage from 0-200 mph due to gearing and weight. There is no doubt in my mind that on the German Autobahn I would be moving over for the faster Ruf cars.
Last edited by cjv; Jun 28, 2004 at 12:08 AM.
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Originally posted by Bill S
Maybe we can compare someday. I may be at the Concorso again this year. Are you going?
Maybe we can compare someday. I may be at the Concorso again this year. Are you going?
