Quote:
Originally Posted by sleet
So I did a bit of dyno.
1. 3 tries on AFE power scorcher module + OEM exhaust
2. 3 tries on AFE power scorcher module + GTHAUS GTC-EV(open mode)
Notes:
1) Mustang Dynometer
2) Shell ultra helix 5w40 engine oil
3) Shell fuelsave 98 fuel (roughly equivalent to 93 in the states)
4) Comfort mode (if it even matters)
Results:
1) AFE power scorcher module + OEM exhaust
Average peak torque 331.55 Nm at wheels
Average peak HP 217.02 whp
2) AFE power scorcher module + GTHAUS GTC-EV(open mode)
Average peak torque 334.54 Nm at wheels
Average peak HP 224.579 whp
Observations:
1) Slight loss of torque at low rpms
2) 7.5whp gain on a Mustang dyno = probably higher on a dynojet
3) Much sexier torque curve all the way to redline
4) Torque curve for AFE run 1 seems a bit out of norm
5) As the GTHAUS exhaust gets hotter, it definitely gets louder. Does it expand and allow gases to flow more freely (more hp?) <newbie>
6) I keep getting some kind of engine retardation from 3700-4700rpm but I'm not even sure how to tell my mechanics. Can any experts help?
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That is a bit suspect, even for a Mustang dyno. Your car is making stock power, although showing a gain from the exhaust is good.
Your first dyno, 217whp and 244ft lbs of tq, that is what one would expect on a 100% stock car. I ran on a SuperFlo, which is load bearing and similar to a Mustang, again much lower than a Dyno jet. I did 213whp and 240ftlbs of tq.
Your AFE Scorcher is claiming some gains, you should be seeing 25-35whp from it.
After the catback, I saw 220whp and 260ft lbs. Do you have runs without the tune active? If so, and it's not showing the gains it should, I would dump it. For some reason your numbers look like a 320i with a tune, not a 328.