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1999 camaro M6
1/78" longtubes true duals
Fast 92/92 combo
K&N CAI
233/239 tsp cam
660" lift springs titanium retainers
7.4000 pushrods
morel lifters 5315
self tuned with new hptuners software
275/40/17 tires all around
nitto555r on the back (new this year)
Well I finally got out to the track and I have to say I'm pretty disappointed. Car keeps locking me out of 2nd gear at high rpm. So on my last couple runs I try to shift it a little earlier. Still seems way faster with the new mods but only picked up 5.5mph over my best run before the cam. I'm really hoping this is because of my stock clutchand lack of racing experience.
Took my wife down the track everytime but between the both of us we are 300lbs. Could the tune be off this much or just really terrible DA? Not sure what the DA was last night but it was about 20C at 2200 feet.
Really hoping it's my ugly 60' and stock clutch issues not letting me get my desired mph. Could my tune be that bad?? I am a rookie when it comes to the software. Best and last run of night. Started to cool down and shifted no problem but bogged a bit from launch. 2nd best run. Had to wait to get it in to 2nd gear and killed all momentum. This is from 2yrs ago with long tubes and CAI only. Figured this wasn't terrible but still low mph? Maybe I need the driver mod LOL! Please help! I'm still slow AF!
Sure the da comes into play, and it could be a bad tune. However, if it were me I'd focus on the most obvious thing first... the 60 ft time. A 2.1 60 is killing any chance of getting quicker or faster... mainly quicker. You may not want to explode your stock rear end by dumping the clutch at 4500 with slicks, but I'd drop the psi on your tires and practice getting a good launch.
Just keep in mind sticky tires + 10 bolt + 6 speed = exploded rear end.
Something is off. should be trapping 90+mph in the 1/8th minimum.
clutch seems to be good so far. My AFR is right around 12.8 the whole run. I'm definitely not shifting high enough. I need to try the drill mod and if that doesn't work then the master cylinder. I looked up my DA for that night and it was like 3000. Still though I think my short shifting 1-2 is really killing my run. Also my tune probably could be better if it was done by a pro.
Sure the da comes into play, and it could be a bad tune. However, if it were me I'd focus on the most obvious thing first... the 60 ft time. A 2.1 60 is killing any chance of getting quicker or faster... mainly quicker. You may not want to explode your stock rear end by dumping the clutch at 4500 with slicks, but I'd drop the psi on your tires and practice getting a good launch.
Just keep in mind sticky tires + 10 bolt + 6 speed = exploded rear end.
Yeah that's for sure, I think it's a combination of a tune that's off and short shifting 1-2 and a horrible launch. I tried launching hard but it seems like if I don't ride the clutch a bit it just sins hard. I definitely need to lower the tire pressure but am a bit nervous about destroying the 10 bolt haha. Even if I could get some better trap speeds I'd be happy...
1. Put it on a dyno to see what kind of power its making.
That's a good chunk of change in parts to be running slower than stock f body's. Any codes showing up? Pulling timing? Misfires?
2. Get that clutch out of there asap. McLeod, monster or spec depending on your budget.
3. Save up for a 12 bolt with better gearing. Stock gearing isn't helping you stay in your powerband either specially if you can't shift at upper rpms.
your 60ft is def hurting you, there is something for sure going on sense like stated above you're running way slower then stock my buddys bone stock 2000 trans am with an auto ran 13.1
Thanks for the responses. I believe it is pulling timing due to burst knock. Haven't been able to totally get the tune figured out.... yeah it would be nice to get it on a dyno but I don't think anyone will let me rent their dyno around here and don't want to pay the $800 I was quoted for a dyno tune. I really do need a new clutch and rear end for sure if I wanna get these 60' times down. The more I research it the more I believe it is the pressure plate cause if my shifting issues. Don't have the money right now to get all of this done but in time it'll happen. I knew my 60' times would be bad but the mph is what has me worried.
TSP 233/239 .600, .600
Fast 102
NW 102 TB
ATI Balancer
Hooker 1.75 LT
3" True Dual Over Axle Exhaust
stock 241 Heads
Premier Performance Here in Utah Tuned it last year and dyno'd 430hp
The day I ran the DA was at like 7XXX ft and I was just barely getting into the high 13s
speed of like 108 so I def feel your frustration as when the car was bone stock I was running 12s in Fayetteville NC.
Get it on the dyno. Cars trap is 10 mph off. Don't go blowing it up!
I don't think my trap will get to 118mph... I'm not going to pick up 20 mph from 70whp I don't think. My best with headers only is 102mph. Not great either but I'm not in sea level air either
TSP 233/239 .600, .600
Fast 102
NW 102 TB
ATI Balancer
Hooker 1.75 LT
3" True Dual Over Axle Exhaust
stock 241 Heads
Premier Performance Here in Utah Tuned it last year and dyno'd 430hp
The day I ran the DA was at like 7XXX ft and I was just barely getting into the high 13s
speed of like 108 so I def feel your frustration as when the car was bone stock I was running 12s in Fayetteville NC.
wow that da is horrible hahha. I'm sure I was around 3000+. I bet in the fall with good air and if I can shift harder it'll be above 110. I'm not an experienced 1/4 mile guy anyway so that also has something to do with it. Are you m6 as well?
24* at WOT. It's pulling 3 degrees sometimes through the whole rpm range. Right from idle I launch the car as if at the strip and it runs about 20-21* through the whole rpm range. Weird part is it doesn't do this consistently. I'm running 94 pump gas. Don't wanna zero out the burst knock tables yet because as Scotty says above don't wanna blow this baby up haha
I struggled with knock for months. It ended up being PCV, harmonic balancer and bad fuel. I added a catch can, sea foam, new fuel filter and an ATI 10% balancer. We could only get 19 degrees of timing before it would knock. And even with them turned off it didn't make anymore power. Once I got it all figured out I picked up HUGE. Check out how far it came lol. https://ls1tech.com/forums/generatio...ts-inside.html
24* at WOT. It's pulling 3 degrees sometimes through the whole rpm range. Right from idle I launch the car as if at the strip and it runs about 20-21* through the whole rpm range. Weird part is it doesn't do this consistently. I'm running 94 pump gas. Don't wanna zero out the burst knock tables yet because as Scotty says above don't wanna blow this baby up haha
I see. Timing seems a tad lower than most but it is what it is. So you picked up 5 mph with just the cam and retune?
I see. Timing seems a tad lower than most but it is what it is. So you picked up 5 mph with just the cam and retune?
yeah 5.5mph with cam, 92/92, and messing with hptuners. Should've went with the heads too but I'll put that cash towards a clutch and new rear end in the future
Right around 0.060", I used the bolt turn method. I know not ideal but all of them came out to very close to the same turns and car has very little noise. No more than my 6.0L Silverado anyways
06-24-2017, 11:07 AM
Terrible new track times 
