dyno'ed my cls, is this normal for a 500 engine?
06-23-2006, 10:42 AM
#1
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dyno'ed my cls, is this normal for a 500 engine?
ok so i have some minor mods on the car and decided to run it on a dynojet but i have acouple of questions on it... On the chart the dyno leveled off at 257HP to the wheels in 4th and 296 lb/tq. Is this the number that i use? or do i use the peak HP with peaked at 298HP and 326lb/tq... I'm guessin I use the lower number as that prob translates to about 308HP and 355lb/tq ... also my tech is telling me that he thinks my car is running alittle rich at about 12.3... hes not to experienced with benz so he's not sure... with my mods what do you think? i'm guessin its about what i thought it would be...
mods:
greenfilter
gutted custom aa exhaust
3" X-Pipe
EuroRev ECU reprogramming
__________________
mods:
greenfilter
gutted custom aa exhaust
3" X-Pipe
EuroRev ECU reprogramming
__________________
06-23-2006, 02:49 PM
#4
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Originally Posted by ATS
I have no idea about the dyno'd number but the car ships with 302 (or 303?) hp and 339 lb torque.
06-23-2006, 03:02 PM
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'05 E320 CDI;'04 S2k;'94 Supra TT;'10 QX56;'38 Buick;98 Port City Offset Late Model
You look at the whole curve and look at the peaks. Most people compare the peaks.
With a manual transmission, you lose 10-15%. With an auto, you lose more. 289hp peak through auto is probably at least 330hp at the crank and maybe as much as 345.
With a manual transmission, you lose 10-15%. With an auto, you lose more. 289hp peak through auto is probably at least 330hp at the crank and maybe as much as 345.
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06-23-2006, 03:40 PM
#8
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Originally Posted by DavidNJ
You look at the whole curve and look at the peaks. Most people compare the peaks.
With a manual transmission, you lose 10-15%. With an auto, you lose more. 289hp peak through auto is probably at least 330hp at the crank and maybe as much as 345.
With a manual transmission, you lose 10-15%. With an auto, you lose more. 289hp peak through auto is probably at least 330hp at the crank and maybe as much as 345.
06-23-2006, 04:54 PM
#10
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Originally Posted by sdsilverm3
I usually use a 17% drivetrain loss formula. Puts you at about 347hp. The type of dyno will also affect how high/low the HP figures are.
06-23-2006, 05:12 PM
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'06 SL65
I've used Dynojet before and I heard it's better than Mustang Dynos. Where those SAE Corrected numbers? If you did a baseline, you might also want to look at the broader powerband throughout the RPM with your mods and not only look at just the peak HP. Also, larger diameter wheels will have parasitic losses too. Dynapack is a better Dyno as they don't use rollers.
BTW...Sweet Ride!
BTW...Sweet Ride!
06-23-2006, 06:37 PM
#12
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Originally Posted by LIONHEAD
I've used Dynojet before and I heard it's better than Mustang Dynos. Where those SAE Corrected numbers? If you did a baseline, you might also want to look at the broader powerband throughout the RPM with your mods and not only look at just the peak HP. Also, larger diameter wheels will have parasitic losses too. Dynapack is a better Dyno as they don't use rollers.
BTW...Sweet Ride!
BTW...Sweet Ride!
