what HP can 4.6 handle..NOT THE USUAL QUESTION!!!
09-20-2008, 08:44 PM
#1
3rd Gear Member
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what HP can 4.6 handle..NOT THE USUAL QUESTION!!!
I got back from the dyno yesterday and on my sheet it has corrected and non corrected. if they claim 450 is about the max for dependability is that corrected or not corrected. my numbers came out as:
415 RWHP not corrected
492.5 RWHP corrected
388.5 RWTQ not corrected
460.6 RWTQ corrected
so am i in the danger zone or not??????
415 RWHP not corrected
492.5 RWHP corrected
388.5 RWTQ not corrected
460.6 RWTQ corrected
so am i in the danger zone or not??????
09-20-2008, 08:58 PM
#5
the difference in the 2 sets of numbers is a ton. Corrected numbers dont magically add or subtract 70 HP. Someone is trying to pull a fast one on you i think.
AM is correct about it being in the tune. The 12lbs of boost is what i think would be a bigger factor, not the HP numbers
AM is correct about it being in the tune. The 12lbs of boost is what i think would be a bigger factor, not the HP numbers
09-20-2008, 09:00 PM
#6
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Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
I don't care what the dyno said. If you are pushing 12lbs of boost on a stock motor, then you should expect the worst. The dyno could be off either way, but you know you are making a lot of power with that much boost. If 12lbs of boost was perfectly safe, then whipple, saleen and KB would all be selling kits tuned for it.
I know nothing of dyno numbers and the correction crap, sorry.
I know nothing of dyno numbers and the correction crap, sorry.
09-20-2008, 09:04 PM
#7
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Join Date: Sep 2006
Location: Gainesville, FL
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More torque = more stress = twisted, bent, broken rods! How many times have we seen a blown motor with no signs of any detonation whatsoever? Lots!
09-20-2008, 09:06 PM
#8
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
the difference in the 2 sets of numbers is a ton. Corrected numbers dont magically add or subtract 70 HP. Someone is trying to pull a fast one on you i think.
AM is correct about it being in the tune. The 12lbs of boost is what i think would be a bigger factor, not the HP numbers
AM is correct about it being in the tune. The 12lbs of boost is what i think would be a bigger factor, not the HP numbers
09-20-2008, 11:04 PM
#9
3rd Gear Member
Join Date: Jul 2007
Location: South Carolina
Posts: 921
I'm pushing 13 pounds ~500 rwhp with no problems at this point. Car drove 2000 miles with no issues 2 weeks ago.
It's a roll of the dice really... I broke my input shaft at 440 rwhp and I know some with over 500 with no tranny problems.
It's a roll of the dice really... I broke my input shaft at 440 rwhp and I know some with over 500 with no tranny problems.
09-21-2008, 05:31 AM
#10
Retired Mod
Join Date: Jan 2007
Location: Long Island, NY
Posts: 7,658
IMO - yes your in the danger zone.... however after being on these boards now for 18months I am starting to believe that 450 is certainly not the cut off of safe. seems more like 500 (anecdotal observation) many cars running near 500 for a good long time with out issue
can u post your dyno sheet? temps/humdity and boost levels would tell us a lot
can u post your dyno sheet? temps/humdity and boost levels would tell us a lot