Just had mine on the dyno today as well. Currently GM Stage 2, Injen Intake and 2.9 pulley from zzp. Car put down 244hp/225tq. Current best 1/4 is a 13.6@102.81 which was before the new ZZP Pulley was put on.

 

not a good thing to do

 

english please

 

Who is tuning you without a wideband? Please dont touch the AFR unless you have one for the sake of your car

 

what many are missing is it made 25x on 16.5 deg timing. That's imprssive cinsidering there is plenty of leg room and meth intot the equation. mr x may have made this and that on a 2.9, BUT I'm sure that was on a complete tune and these numbers were also at 6500 rpm

 

Says the guy who put down barely more than I did on stage 2.

 

I noticed it. I made my power on 18 degrees of timing, so the OP's numbers are impressive. I'm thinking it was made on a cooled down engine.

 

wow go ahead and im not done being tuned waiting on my alternator to get her

 

5 min in between pulls so it wasent a cooled down engine

 

0-56 meters above sea level ... what else would m stand for? lol

 

Damn. Even more impressive considering it was dealing with all the heat. Get that car on a track and see what she'll do!

 

how far in feet

 

0-183 ft

 

ported head

 

yea lol

 

first post updated

 

Is 22* all you can get out of it, or is that just where you stopped? Take her on up to 25* if it'll take it

 

flat timing curve kills top end.

12.0 afr on the dyno will end up being 13.x something on the street.

keep this in mind.

 

i will thank you

 

eh? above .80 g/cyl I run flat timing... why's that bad?

 

Ramp it up. Mine starts at 23* at like 3k and works to 25.5* by 5600 or so and stays there to redline. shaunmcdee and area told me to ramp it like that and it feels much stronger on the top end

 

not that i have any basis to question this, I just thought that id produce more power through out if i ran the most timing i could from like 3250 all the way up.
I will try ramping in the timing, but I suspect I will feel a slight loss of power in the mid range

 

I always though the same thing until I tried it. And someone with some time on a dyno can most likely answer this better than me, but I didnt FEEL any midrange drop in power, although I could be wrong

 

well I'm going to the dyno in 2 weeks so I will try this.

 

sheet added