These Dyno Numbers Are Making Me Mad

TimGT

Founding Member
May 2, 2001
201
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Santa Fe, New Mexico
Alright I got my car dynoed again today and I'm only making 252rwhp and 291rwtq. With all the mods shouldn't I be making more HP let me know what you guys think. All the mods are listed in my signature. Another thing I don't understand is when the Mafterburner was unplugged I would run 14.2's all day long and with it plugged in I would run 14.7's this is at 5500ft above sea level so that's why they seem so slow.
 
What's your MPH in the 1/4 and the actual weight of your car? That's fairly accurate to judge rwhp. I've got a calculator that comes pretty close. I could figure it to see how close the dyno numbers are compared to your calculated HP. You should be higher, but what intake/heads/cams are you running?
 
well I put up about 258Rwhp and 301TQ with close toe the same mods not tuned. although I have a bassani o/r X-pipe, you have a pro chamber, when mine was dyno'd i had 16* of timing, not sure what your timing is. that is wierd about the mafterburner track times though. but your numbers are nowhere NEAR bad, not great, but good.
 
03-s281 said:
Seems right to me.
All you have done is exhaust, pulleys and cai.

Don't forget the SHM longblock and custom tuned Diablo Chip. It has the stock intake, stage two heads, and I'm not sure what type of cams just know they're from SHM.
Oh yeah my MPH were 96.4-96.7 on the 14.7's and 99.8-100.2 on the 14.2's
 
TimGT said:
Don't forget the SHM longblock and custom tuned Diablo Chip. It has the stock intake, stage two heads, and I'm not sure what type of cams just know they're from SHM.
Oh yeah my MPH were 96.4-96.7 on the 14.7's and 99.8-100.2 on the 14.2's

Was it dynoed at 5,500 feet too?