Stock rwhp for 99+
#1
I have been trying to do a little researce and find out what the rwhp of all the different fullsize pickups are. Having that said, what is the rwhp on the 99+ GM trucks, both 4.8 and 5.3. Also, what kinda rwtq numbers are they putting down. Please include variation by year also, thanks.
#2
Here ya go, these two trucks were nearly identical except for the engine size. Same year, similar miles, completely stock. 4.8 vs 5.3 Dynojet, tested on the same day:

Area under the curve is huge, don't just pay attention to peak values.
Tony

Area under the curve is huge, don't just pay attention to peak values.
Tony
#3
Wow, couldnt ask for a better response than that, thanks. Is that about the norm? I know numbers can fluctuate both ways, Im just trying to get the average output. Very impressive IMO, thats about a 19% loss for the 5.3, and 18ish% for the 4.8.
More impressive than the Dodge numbers Ive been looking at, they seem to average around a 23% loss, not insulting them, just stating my findings.
More impressive than the Dodge numbers Ive been looking at, they seem to average around a 23% loss, not insulting them, just stating my findings.
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sprayedenali
General Truck Racing and Discussion
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Aug 7, 2015 08:15 AM




