Went to the dyno last night numbers

382rwhp @ 6500rpm
347ftlbs

afr is a little of from 3300rpm to 4800rpm 12.0 from 4800 up 13.0afr, so there should be more in the car

Advance heads (phil this would be a good time to give me the final flow numbers)
gm 847 cam
rk sport headers
all the outher stuff

 

awesome numbers, what are the specs on that cam?

 

A4 or m6? I somewhat expected more from the cam. Who was doing all the tuning? 380rwhp is still a ton, but i guess you have a another 20rwhp in there somewhere


234/242 .575/.595 on 112

 

What rpm did you max out on horsepower.. That 847 cam pulls hard in the upper rpms....

 

Hrm, they're okay dyno #'s. I thought i sent you the #'s? I'll re-email them to you.

For the ppl who dont know.. I was trying to fix a set of ARE LT1's. Unfortunately they had a couple spots I couldn't do anything about w/o adding material to all of the ports.

Peak was 272cfm @ .600 IIRC, but the midlift #'s weren't what I normally get I don't think b/c their stuff (shape & huge venturi) was so jacked up to begin with.

I'll dig them up this afternoon & re-send though .

I hope yer happy, I guess you picked up 40hp or so going from their stage 2 stuff to what I did, so not too bad, but not great. A good example for others who don't want to start with unmolested stuff

 

i am doing the tune with tuner cat, this was my frist time(ever) tring to tune the wot of the car i know there is more in it i got the info i need

i am a m6 car, on the dyno i went to 7000rpm from i pick at 6700 @ 6500rpm i am the same.

any help with tuning?

and yes i am happy over my stage2 stuff

 

You should be MUCH higher than that IMO with a m6 car.

Seeing any knock retard?

 

Ahhh, yeah you've got some power left then. I can likely help, or get you help if you need it.

 

YA i need help with tuning i have kr at 4000 rpm 7* up to about 5500rpm but it drop off but when i made this pull i was 11.0afr how can i have kr ?

i can send you my file all the help the better

And Altjar this is my frist time ever tuning wot, so

 

Ok kr at
4475-7*
4650-6*
4825-3.9*
5200-2.1*
5300-1.4*
5400-0.9
5525-0.7
56 -0.6
57 -0.4
6000 -0.4
6300 -0.3
datamaster run's out how do you get datamaster to go to 7000rpm

all there help would be great thx

 

Hey we all have to start somewhere! lt1edit has a mailing list you may want to join if you are really into the tuning thing. Some really smart people on there.

First of all, no scanners will record past 6375 rpms because of the way binary numbers get translated blah blah blah, so there you are stuck.

Next step, go fill up with some HIGH octane non leaded fuel, and do a couple wide open runs. If the knock goes away, you were experiencing real knock. If it doesnt go away, you were picking up valvetrain noise, header noise etc as knock. Knock retard KILLS power. The computer pulls timing out quickly and adds it back in VERY slowly. If you were getting real knock, you need to pull out a little timing at the specific map/rpm that you experienced the knock, and repeat. NO KNOCK is the only acceptable route.

If you experienced false knock, you need to desensitize the sensor a tad. More on how to do that later if this is the problem.

 

oh ya, I really wasnt trying to be hard on you at all, sorry if it came off that way. I just know this cams capabilities (im running it, lol) and would like to see everyone make as much power as possible! We will find out whats going on and get her fixed

 

So IYO what is a good dyno # for this cam? I think one of the highest i have seen for m6 with this cam was 412rwhp .....

 

Those numbers are good. I hit 412rwhp with Phil's heads and the GM847 cam, but thats was through and M6 and 10-bolt rear end.

 

Stock PCM won't spin past 7000rpm.