Hello, I am 16, I have a 67 camaro SS350, here is my combo:

350 4blt
EDL 600 elec choke
EDL Perf RPM
Holley Mech Strip Fuel pump
Comp Cam 270H 224 .474''
GM Heads 202/160 76cc with 10.2 compression with domed speed pro pistons
good bottom end
Hooker Comp Headers, Dual Flowmaster 2.5''
TH350 built great with shift kit that smokes the Tire(s) goin into 2nd,,,sometimes one spins sometimes 2 ? lol
3.23 open rear
at my school we have competition for fastest NO NOS BLOWER TURBO cars,,,i am in the top 2 which i am glad that all the $ i put into my car pays off,... im up there with a 96 GT mustang 4.6 auto,,,he claims with headers and 4K into the motor hes well into the 12s which i guess i can believe, he has 410 gears

I need to beat him, lol, i know i need posi and maybe 373 gears? i am not worried bout top speed, just great 1/4 times...what can i do to get up there with him? Posi? Gears? im getting traction bars....New Holley bigger carb? more compression? thanks so much for the help, sorry its long
Adam
Fixfone@aol.com
plz email me if u wanna get into lots of details

First thing you need to do is get to the track and get some time slips (your #2 so you must have a few already) so you can post what your combo is already doing. If you are doing this on the street, stop and you'll be #1 in my book. Nothing gets proved on the street! I'm not going to lecture, what I mean is if the other guy leaves early he DQ'd at the track and on the street leaving early can leave the faster car the looser by the next light.

Anyway traction and tuning is what it's about and a baseline (time slips) to show what works and what doesn't... Then you build on it from there. Any other way is too expensive...

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...Dennis
"The '69 (http://chevelles.com/showroom/ww.jpg), the '96 (http://www.camaroslimited.com/graphics/memcars/96ss.jpg) our local club (http://camaroslimited.com/)"
and the "daily driver" (http://chevelles.com/showroom/DjD/dsc00016.jpg)

Thanks for the reply...I never race on the street, only at track, i ran 15s when my car was stock, i havent ran it since, thx for the help

Ah yes...I remember those days.

Honestly, I did have the fasted car in high school. Only ran low 14's though!

Here's what I would do if I were you.
1. Change those heads! Pro Topline is making some excellent heads...take advantage of the superior flow and combusion swirl. I would keep runner sizes around 180cc.

2. The gears aren't that bad. If you're good, you can run high 13's with a mild 350 and 3.23 gears. Since it's an open rear, you can install a Powertrax unit without tearing the unit apart. This will give you great traction, but don't be too hard on it when turning corners. I can remember a time when the rear swung around so fast it killed the motor, and I was facing the wrong way in the street! http://www.camaros.net/forum/eek.gif

3. M/T ET Streets! http://www.camaros.net/forum/cool.gif

4. Stall converter? 2500-3000 can make that launch pretty good.

5. Traction bars can be made to work very well, but they require some tuning. Get some Cal-Tracs or Slide-A-Links for instant traction.

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Matt Jones
1969 Base Camaro
Vortec 355, Perf. RPM, Demon Carb., TH-400
All sheetmetal is NOS GM
See my UPDATED webpage at: http://www.geocities.com/compuboy007/ (Updated: 1/13/03)

I agree with DjD,on really working on getting good traction and lowering 60ft times.They are key in having a good 1/4 mile pass.If you do decide on a gear swap,it depends on what kind of driving you do.If you still want to cruise good on the freeway with a 3 speed automatic probably wouldn't want to go higher then 3.55, maybe could do 3.73's and rev a little higher on the freeway.As for the mustang,I'd really like to know the mods.Did he say it runs well into the 12's or show a timeslip? I'm 21,and where I live there are plenty of guys who claim they go 12s,but haven't been to the track.I can maybe give you an idea on the mustang.Just happens my mom owns a 96GT,5speed.Her car has a bullitt intake,custom ground crane cam,custom burned chip,ported after market aluminum heads,BBK long tube headers,3.73 gears,drag suspension,2 1/2" flowmaster exhaust,basani X pipe. If I remember correctly it made about 300rwhp on the dyno.I'm not even sure if it would run well into the 12's,96 GT's weigh in at about 3600 something pounds.I hope you beat him,keep me posted

Agree, there's plenty of car owners at my school who claim to be capable of "11's" when you hear what they actually run (if they ever hit the track) its usually somewhere in the Mid 13's with No traction and they break something.

Optimize what you currently have. Fuel delivery and ignition have to be right on.

Learn how to really launch the car.....find out where the cars leaves the best and at what RPM.

Loose some weight.....find out what really doesnt need to be in the car or attached to it.

Unhook the sway bar at the track and check your alignment....less toe-in/less scrub.

Tires and a posi would be my first purchase. Your not applying even torque to the rear wheels. Tires aid in traction and a posi puts it to the ground. Gears at the same time would be nice (3.73), but I know that money doesnt grow on trees. Now that you would be applying even torque.....will you need traction bars?.....how's the weight transfer?.....change shocks/springs?.......

Next would be a good carb. Even if you just barrow one from a friend for awhile.....Holleys are eaiser to tune at the track and they offer more adjustments than an Edelpuddle. There is nothing wrong with a 600 CFM...(cubic inches/2)*(max rpm/1728)= recommended CFM.

Let us know how things go.....

Hey, I had a 3.08 open rear (car link in my sig) and ran 15.3, then switching to an eaton posi and 3.73's I ran a 14.6. I can hold the car on brakes until it wants to start crawling at 1600 rpm, so I know my stall speed is low and I dont get very good launches, which is important. I think if you want to do any modifications, go at least with a posi, and maybe a different torque convertor.

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NEW PICS! 1/10/03
My 68 Camaro: Project Whoa (http://www.geocities.com/capitolstrokers/cars_steven)

Drag67Camaro

sorry, i don't know much of what you should do, but i have a question for you...

Are you sure you are running 10.2 compression with that camshaft and are those GM heads made of iron? I don't know if you are familiar with dynamic compression ratios, but I calculated your dynamic compression ratio with that cam (IVC @ 61 degrees) to be at 8.37 to 1. And this is above what I have heard is an acceptable ratio for iron heads and pump fuel...

any thoughts?

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1968 Coupe (http://www.eden.rutgers.edu/~vath/Camaro/), 327/210hp project in process. PS/PB, Factory AC, adding camelhumps and a CompCam XE262
1986 Chevy Stepside (http://www.eden.rutgers.edu/~vath/Stepside/), dying 4.3L, TH-400, no A/C, 2wd, 1/4 million miles.

The main thing to do first is hit the track and get numbers. Like the rest stated, that's where it all starts.
Some things I would look into are running a 750cfm carb, running different rear tire pressures, to find the best 60ft marks, a stall converter around 2000-2500, and one very important thing, work on getting a good reaction time. A race can be won or lost with your reation time.
As for the carb, I ran a similar 350 in my 68 and found that if your looking for gas mileage, go with the 600cfm, but I was looking for performance and went with the 750cfm and it did make a difference. With the air pressure in the rear tires, I used to drop mine down between 15 to 20psi. See what pressure works best for you. Get some kind of traction bars. Also play around with your RPM range to see where your best performance is when you come out of the hole and where it best performs at when you shift. Keep notes on all of this and in the end, these notes will help you find your best performance.
Bruce http://www.camaros.net/forum/biggrin.gif www.geocities.com/rolandracing/index.html (http://www.geocities.com/rolandracing/index.html)



[This message has been edited by bruce69camaro (edited 01-17-2003).]

I have seen a lot of mustangs at the track. very few of them (in the street class) run well into the 12s. Many say they do.

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67 prostreet BB Camaro The Combat Rat
80 z28 Camaro 355ci
71 BB SS Chevelle (clone)
2002 35th anniv SS Z28 conv.

thanks for all the replies guys, he didnt show me a timeslip so im really sceptical about his real times, i dont understand how he (being 16 and his first car) can say what he will run from what his parents bought him and put on his car...i dont want to go with a stall but posi and 373 and some traction bars are next and probably a holley 750 , but i dont know what kind to get, i cant really practice launching RPMs right now because i have NO traction so im gonna get some Comp T/A's for street and M/T streets for the track, i lose top end power with that cam, its got excellent low end torque, i think a holley might give me top end? but the pistons i have have huge domes on them and they say its 10.2 with 76cc, i want to save up for heads that i can buy late spring, thanks for all the help!
Adam

ok...the pistons have .200 dome, now heads...i want to get some heads before summer, what kind go good with 10.2 CR and the Comp Cam 270H, would i have enought HP to get into 12s? weight transfer is decent, ill probably get those trick front springs and etc but all in time cuz i dont have much money now but hopefully i will this spring
thanks so much

Adam

I agree with what everyone says. If It were my car the first thing I would do is sell the open rear-end and gears, and get a nice set of 4.11's with a 2500-3000 stall.

You have a decent combo already now lets just work with that before you go and spend money on heads and things you don't need.

Another thing you could do is buy a set of 90/10 drag shocks for the front they are cheap and offer better launches and 50/50 shocks for the rear of the car.

You should be ok with street tires for now. At the track I can get a maximum of 13.2 @ 101 mph with a 1.9 sixty footer. They are BFG radial T/A's aired down to 14 LBS

Also another cheap way to get traction, and nobody has to know anything about it (Competition) LOL. Use traction compound!

Hope you smoke this guy.

Mike

THANKS so much
Adam