Low dyno numbers and confused?
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I have a 1999 ss stock bottom end m6 with current mods:
slp lid
stock ported tb
ls6 intake
799 heads in stock form with dbl springs
tsp tsunami cam 235/240 .648"/.609" Camshaft
bbk long tube headers
cutout on off road y
stock clutch and stock 3.42 gears
I took it to the local dyno tuner and the car feels strong but only made 360rwhp 348 ft-lb tq. @ 6300. It was a mustang dyno. I was expecting around 400+. The car feels strong but I don't really have anything to compare to. Does this seem in line?
slp lid
stock ported tb
ls6 intake
799 heads in stock form with dbl springs
tsp tsunami cam 235/240 .648"/.609" Camshaft
bbk long tube headers
cutout on off road y
stock clutch and stock 3.42 gears
I took it to the local dyno tuner and the car feels strong but only made 360rwhp 348 ft-lb tq. @ 6300. It was a mustang dyno. I was expecting around 400+. The car feels strong but I don't really have anything to compare to. Does this seem in line?
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Wow that is some monster lift and duration there! I'm running basically the same setup as you but with 3.73 and home ported 243s and comp Cam 224/230 .590 lift and making just under 400 at the wheels. My guess would be that Cam is too much for your heads or your having some serious valve float
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should I have the 799's ported or try to find used aftermarket heads. Budget is always a consideration but I don't want to cut corners and have to spend more later.
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You should'nt be confused nor disappointed with those numbers. On a dynojet you will dyno higher more like 390+rwhp. My car dynoed 350rwhp on a dynojet, on a mustang dyno ill be lucky to see 320-325rwhp. Also as mentioned above forget the dyno there's a couple of things you can do to work better for the cam you have so everything can work well together.
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When I put my home ported 243's on my car and ls6 intake,shortie headers and off road y-pipe, borla cat back with stock cam it made 340 to the wheels on a mustang dyno. It made 360 on a dyno jet with nothing changed. What gear did you dyno in ? I think that will change your results.