ls1curt

iTrader: (31)

hey, just got my car back from the tuner. i was really set on making it to the 400whp mark and i feel that my car had it in it. i think the cams rated 2300-6800 so i feel that a good 6800 pull would of put me over the 400 mark, but my tuner only pulled it to like 5600.what do you guys think? the tune came out awesome tho, for what people had said about the ms4's drivability, it feels like a stock car at low rpms now.

smok'nZ

iTrader: (160)

why didnt you run it to at least 6200-6400?

BrianC98Z28

iTrader: (11)

dude, even stock pulls to 6K. Pull that thing to 6800

ls1curt

iTrader: (31)

i wasnt there when he tuned it. i went to pick it up and saw that he only pulled it to like 5600 and was like wtf, all the ms4's power is in that last 1000 rpm. idk if i go to a dyno day sometime, i will pull it to 6800, i guess

Slowhawk

iTrader: (12)

If a tuner -tunes it,they should know to pull it the full rpm range of the Cam unless there is a problem. So the qeustion would be ,why didn't they make pulls to atleast 6800rpm and why did they print the STD #'s which show a higher # than SAE correction (a standard to compare).

02sslayer

iTrader: (4)

thats wierd that he dident give it a full pull. maybe the fual system was maxing out at 5600?

ls1curt

iTrader: (31)

na, he didnt say anything about the fuel system being maxxed out. i dont think there was a problem, i think he was just happy with the power and that was about redline (for a stock ls1)

itsslow98

iTrader: (18)

Id take it back and be like i want you to make a pul to 6800 so I know its safe.

ls1curt

iTrader: (31)

he told me the tune would be fine for higher rpms tho

allngn_c5

iTrader: (3)

I'd rather know its safe with verified a/f in the upper RPMs then simply accept his word for it. Thats a pretty big upper RPM cam. You have no idea what kind of power you make at peak. Your tuner needs to strap your car down and do a full pull.

Your 4.10s have a lot to do with helping the drivability down low. Glad to hear you are happy but I'd go back for a full pull. Hell take a road trip and go see Slowhawk, might be worth it.

ls1curt

iTrader: (31)

yeah well i just dropped $500 on that dyno, so prob wont be going back for another tune for a while

Johnnystock

iTrader: (6)

You were ripped off.

I would ask for my money back or a retune ASAP. Your tuner is the worst incompetent I've heard about in this section to date...MS4 to 5600

hellbents10

iTrader: (10)

Looks like its not an MS4 cam to me...looks more like an ls6 curve. How much vacuum do you pull at idle and what is the idle speed set too?

MikeG

iTrader: (33)

Am I the only one that noticed the A/F ratio going rich toward the end of the pull? Your tuner sucks, you definitely got ripped off.

ls1curt

iTrader: (31)

it is an ms4 cam, i put it in. im gonna go back to him next week, cause the throttle doesnt come down quick, and im gonna ask him if its safe to be pulling the car to 6500

smok'nZ

iTrader: (160)

you should ask for your money back and take it somewhere else

ls1curt

iTrader: (31)

well im going back this week, and am going to see if i can get him to put it on the dyno and pull it to 6800, and make sure my a/f is good up there, if not might have to show him this thread

btw, i do have an exhaust leak around my headers collectors and dont think ill be able to get my flanges this week, will that throw my tune off much?

Slowhawk

iTrader: (12)

Yes it can.

01ssreda4

iTrader: (96)

Any update on this OP?

ls1curt

iTrader: (31)

Well, now I have SlowHawk do my tuning. . .Couldn't be happier