I have something taking some power from me, Any ideas?





Mods are in sig. I did have a knock sensor code but we removed it and checked the timing* which was 27. The truck seems to bog in third for some reason, 2nd pulls great! The fuel pressure is on the money.

WTF IS STEALING MY POWER

my truck hit the speed limiter on the dyno at 155 mph!

 

anyone?

 

do you supercharger or turbo? because it looke right to me.
you can't just put some bolt on and get up to 400+WHP. Flywheel and actual wheel HP is different by about 20%.

 

nope but i think it should be in the 360+ range

 

not so fast my friend.......your expecting about 25-30p too much outa that thing......if you hit 330 you can call those awesome numbers. I wouldnt expect much more especially on a mail order tune. Nelson is the best mail order guy out there IMO, but without a dyno or street tune, it wont be much better. Also you siad you were getting a knock sensor code, another thing you have to look at is if youi were getting KR or not. If the sensor wasnt working or you have it removed you have no way of knowing if you are getting KR, it doesnt have to be audible for it to be killing power.

 

Dyno tune is the only way IMO.

 

BlueCajun5.3 is making 340RWHP on a mail order tune with similar mods and a smaller cam in a smaller engine. I think you should be 350+RWHP easy........

Sorry, but the only suggestion I have is a dyno tune.

 

Mail order tunes are educated guesses.

You should keep in mind the converter is going to take some power away. I think your close to on target. You may could get more out of it with a real tune, but I don't think your below the norm.

 

Similar mods are just that .... similar. I would say a 10rwhp difference is similar.

 

Joe (TouchofEvil04) put down 356 / 350 with his 6.0L swap and a smaller cam... I think you have an issue somewhere. I'd like to run a log on it to check a few things.