First pass at track with cc306

[Dangerous95lt1]

Went to the local 1/8 mile today
32 degress of timing. AFR was 12.8 but below 5000 rpm it was 10.9 i know i change the rpm% wot table but to take fuel out will the numbers be negative?? Because i have it zeroed out now. Thanks guys

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[TravisMcGill2000]

Looks like its down on power. Hopfully getting the tuned worked out will help. How hard are turning it?

[Dangerous95lt1]

6200, i think the air/fuel will help a bunch the car is super lazy until 5000. I just didnt feel like messin with it alot today too cold here in southern il lol

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[firebird_1995]

Did you happen to datalog any runs? I'm thinking that to lean out my dads camaro that I had to go negative in the fuel tables. I wonder if in the staging lanes your coolant temp dropped and put you in a different fueling map?? Just throwing ideas out

[JCzNova]

Did you happen to datalog any runs? I'm thinking that to lean out my dads camaro that I had to go negative in the fuel tables. I wonder if in the staging lanes your coolant temp dropped and put you in a different fueling map?? Just throwing ideas out

This is correct. The numbers will go towards zero and then into the negative to go more lean for each RPM block.

[firebird_1995]

But if I remember right, you had the car dialed in pretty tight with the cc503. I wouldn't expect the fueling to be that far off.

[Dangerous95lt1]

well i didnt have afr issues with the cc503 but today i added VP C12 race fuel cause i was spraying on this new motor just to be safe and after i added the race fuel it was wayyy off and couldnt get datalogger to work right and i broke throttle cable twice and its cold out so i wasnt too motivated today lol

[JCzNova]

I am sitting at 14.0 cruising and right at 12.8 WOT on the track as of last week.

[Dangerous95lt1]

would the race fuel cause the afr to be that far off ?? surely not

[firebird_1995]

Hopefully it was just the race fuel giving you problems. They have a test and tune next Sunday? We are about ready to take dads car to the track and start dialing it in.

[Dangerous95lt1]

yeah its sikeston,MO tho thats kinda a haul for u lol

[firebird_1995]

What time does it start?

[Dangerous95lt1]

Noon to 5 on sundays

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[Chopstix]

would the race fuel cause the afr to be that far off ?? surely not


an interseting read if you have time

http://www.nitroustech.com/forums/showthread.php?t=931&highlight=stoich

[Dangerous95lt1]

Thanks
I hope to do more tuning on it tomorrow. What should a stock headed cc306 car run??

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[blackbird1084]

A stock headed car is going to be pretty close to what yours is running now. I would suggest you turn it a little tighter for a few passes and see if it doesn't pick up some mph. My TA had a 306 in it for a long time and only had a mail order tune on it. Never got a chance to dyno it though. What are all your mods? Don't say in your sig lol. I use tap talk and it doesn't bring up sigs. You definitely want the afr's in the 12.8-13.0 range all the way through the rpm. I wouldn't be shocked if you squeezed out 8.0-7.9's@85 1/8th. Mine ran 7.55@89 in the 1/8th and 11.94@112.26 in the 1/4. But it hooked like crazy. 1.567 best yet 60'.

[Madman337]

an interseting read if you have time

http://www.nitroustech.com/forums/showthread.php?t=931&highlight=stoich

Thank you, I love reading up on stuff like this.

[Dangerous95lt1]

Longtubes, slp loudmouth, cai, tune by me, 4000 stall, 3.23 gears, cc306, 1.6 roller rockers.

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[JCzNova]

Longtubes, slp loudmouth, cai, tune by me, 4000 stall, 3.23 gears, cc306, 1.6 roller rockers.

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Long tubes, stock internals, 4000 Yank, 3.73s. I have gone from a 13.8x down to 12.96 with only tuning over the last three weeks. I will have to see what my 1/8 mile time was on that slip...


Got 9 runs in tonight at Gulfport Raceway. Instead of posting all of them as usual, I am just going to get the best of the night and a new personal best. Put myself out in the first round of Bracket breaking out with this run.

NINTH RUN:
RT : .577
60' : 1.76
1/8 ET : 8.19
1/4 ET : 12.96 (NPB)
MPH : 102.69 (NPB)

[TravisMcGill2000]

Thanks
I hope to do more tuning on it tomorrow. What should a stock headed cc306 car run??

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you should be running mid to high 7s at around 90mph. That 3.23 gear may be hurting you. A cam the size of a 306 really needs atleast a 3.73. I was running 7.7s @87 with just boltons.

[firebird_1995]

I'll make you a hell of a deal on an ls rear with 3.73's!!

[Dangerous95lt1]

How good a deal? I really like my 3.23s but i might change lol

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[dzltek]

I ran my car untuned a few weeks and only got a 8.74 out of it. I was spinning and my 60 ft on that pass was a 1.96 and mph was I think 75/76. Basically same mods just a smaller stall. Aluminum elbow, stock air induction 52mm throttle body, 1.6rr, lts, to a flowmaster on bias ply's. Stock m6 rearend, and turbo 400 swap.

[firebird_1995]

He's much improved now.
http://ltxtech.com/forums/showthread.php?p=320570
New best last Friday

:D

[dzltek]

Son of a biscuit!!!!! He's hauling on nitrous!! I guess my question is if I can hook should I be in the 8.teens? Just did a base map tune tonight on it. I'm real curious if it'll happen now. Gonna have to hit tbe track tuesday night. Does the op have any suspension work done?

[firebird_1995]

Summit drag shocks in the back is all

[dzltek]

Hmmm....... ok thanks. I don't think me just tuning it will pick 0.6 but I may be surprised and actually get a good launch with lower tire pressure. Ill let you know come wednesday morning weather permitting