I was wondering if it was possible to run 12's in the 1/4 with my set up. I haven't made it to the track yet but I have street raced. It seems fast and I can get off the line pretty good. Here is my set-up355cid. compression ratio is 10.2:1,world product heads 67cc camber 170cc Intake Runners.1.940"x1.500 Valves , edelbrock rpm performer cam and intake, cam specs. Duration at .050 Lift: Intake 234° Exhaust 244° Lobe Separation: 112° Centerline: 107°
Lift at valve: Intake .488 Exhaust .510 edelbrock performer 750cfm carb. 1-3/4" headers with 2 1/2 exaust back to dual 2 1/2 no cat no muffler. 700r4 trans modified valve body. 2200 stall converter, 3.73 posi rear. So what E.T.s do you think I can run. I was shoting for low twevles. If those don't get me there I'm going to go with a 3,000 stall and 4.11 rear gears.

 

Don't know about 12's, but low 13's sound very obtainable.

Maybe a little PPSSSSSSSSSSSSSSSSSSSSSTTTTT.

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350 4 bolt main, Speed-O-Motive 383 stroker kit, re-sized rods ground for clearance,TRW Forged pistons,10.7:1 compression,HPC Coated RPM intake, Speed Demon 750 cfm carb,World Products Sportsman II heads,2.02/1.60 valves, Comp Cam 1.6 roller rockers, Comp Xtreme 284 cam,240/246@.050 with .540 lift,Crane pushrods,ATI damper,Proform HEI and MSD6A box,HPC coated 1 5/8 headers, 2.5" exhaust with 40 series mufflers,TH350 with B&M 3000 stall, Powertrax NoSlip Locker, 4.11 gears.

 

You should be able to get into the 12's with your setup if you have it tuned well and if you don't have traction problems. You might have to invest in some slicks or drag radials if you haven't already.

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best 1/4 mile so far: 13.4 @ 101mph

84 Camaro 305 ported & milled heads, 3 angle valve job, Edelbrock Performer RPM intake, Hedman full length headers, Accell ignition, Crane 274H cam, B&M 700R-4, 3000 stall speed, 4.10 gear,
M/T ET street tires
visit my website at http://www.geocities.com/jbenge/page1.html

 

Sorry, I forgot to say that the car is a 91 RS camaro and the heads, intake and headers have all been match ported. The total timing is 35 degree's in at 2500. I have ran it though the quarter numourous times " marked out on back roads". I can turn between 110 - 114 depending on the launch, but I don't have a very good way to time it. What do you guys think.

[This message has been edited by mustangs killer (edited March 15, 2001).]

 

sounds like you are in the 12's. If you are turning 110-114 you are at high-mid's. You should have a friend stand at the quarter mark and time you. You could flash your lights right when you leave the line, that way he'll know when to start the timer.

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1986 CAMARO Z28 ->
151,000 original miles, 43,000 on 89' vette 350 block, Holley 650 DP, Weiand intake, 1.6 rockers, 1 5/8" headers, no cat, 2 1/2" Flowmaster catback, Mallory coil, March pulleys, B&M Ripper shifter, T5 with 3.35 1st gear and 0 miles, 90% Centerforce clutch, 3.73 posi, Eibach 1" drop springs, Spohn LCA's, Spohn adjustable panhard rod, Subframe connectors, all bushings are urethane, 2 12" Sound Streams, 2 Infinity 6X9's, 2 Pioneer 6X9's, 800 watt Lanzar Vibe amp. ET 13.22@ 106.4MPH 3300lbs less driver and speakers Next mods-> Extreme Energy 268 cam, Holley street dom intake.

1987 TRANS AM ->
73,000 miles, 305TPI, auto, gutted air box.

 

What would it take to run low 12's. or at least make sure i'm in the mid twelve's? There's a mustang in my town running 12.6 in the quarter using crack. I won't run nitrous on my car because It's not true, raw power.(just my opinion so don't get p%ssed nitrous users.) I haven't raced him yet because I want to make sure I kick his a$$. Thanks.

 

sorry double post

[This message has been edited by mustangs killer (edited March 15, 2001).]

 

Sounds like a 13.5 motor to me, with the description I have to go on anyway.

But, if you are running 112+ mph like you say you are, then that is a mid 12's setup.

You need to time that baby and get a good set of numbers. The track is your best bet.

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86 Trans Am WS6 Black with tinted windows, shaved door handles
ZZ4, Mini-ram, true duals
***Too many other mods to mention***

"In the future, cities will become deserts,
roads will become battlefields, and the hope of mankind
will appear as a stranger" The Road Warrior

[This message has been edited by Steves ZZ5 (edited March 15, 2001).]

 

Why would it be a 13.5 motor. I should be over 350HP easy.

 

Well, your gearing seems fine, and the stall is on the low side possibly. Like you said, a new converter would definately help. 12's are attainable with 3.73 gears, so no sence in changing them


Anything special done to those World's? Bigger valving would help you flow better. Any porting done to them?

 

no muffler and no cat? where do u live? isnt loud enuf to get a fix-it ticket?

as long as you can keep the tires from spinning, i think the 12's are attainable.

12.6 in a mustang, whats he on? thats a fast mustang. good luck!

daniel

 

he's on a 250 shot of nitrous. I can't wait to smoke his a$$. As for the exuast I getting ready to order a flowmaster for it. I live in a little town in norhtern Indiana so the cops don't really care.

 

12's sound possible with that engine setup.
Cheap way maybee get air shocks to firm up your lanch. I love to no NOS policy its fake and can kill a great engine or bust a fly wheelor pressure plate through the floor board "outch".
expensive way buy a centrifical super chargeror turbo charger 2g's+ but they
have killer power gains and improve gas mileage to that of a rice grinder: well almost"

 

forced induction increases gas mileage? Are you just joking or is that true?

 

Why beat him in a race? Just make sure it's close so you can keep racing him...after about 5 or 6 runs that 250 shot should blow the 5.0 out of his hood! He won't be going anywhere then...

 

I would have to disagree. You actually want the car to squat in the rear for weight transfer. Some people actually remove a leaf spring to lessen the load. If you put air shocks on the rear, it will be like diving of a diving board, and it's a 2X12 board.

I don't think NOS is cheating. It's a bought, over the counter HP addition, as buying a carb or cam would be. If it's not done correctly, yes,BOOM. But do it small portions and istall it correctly, and you'll be fine.


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350 4 bolt main, Speed-O-Motive 383 stroker kit, re-sized rods ground for clearance,TRW Forged pistons,10.7:1 compression,HPC Coated RPM intake, Speed Demon 750 cfm carb,World Products Sportsman II heads,2.02/1.60 valves, Comp Cam 1.6 roller rockers, Comp Xtreme 284 cam,240/246@.050 with .540 lift,Crane pushrods,ATI damper,Proform HEI and MSD6A box,HPC coated 1 5/8 headers, 2.5" exhaust with 40 series mufflers,TH350 with B&M 3000 stall, Powertrax NoSlip Locker, 4.11 gears.

 

It's true. As long as you can keep your foot out of the throttle, mpg will improve, because turbochargers and superchargers are much more efficient than a naturally aspirated engine. It's when you mash the throttle and the engine sucks massive ammounts of fuel and air to create that massive power that mileage goes to ****.

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82 Camaro:
350, Erson cam, ported heads, Crane Hi-6 ignition, Accel supercoil, Comp Cams 1.6:1 rocker arms, Turbo 350 tranny with 2500 stall.

 

although l am a camaro man myself, the 302 stang on nitrous should be pretty dependable, because it's got forged pistons, and should be able to handle a good deal of nitrous without blowin up, although l don't agree with your no nitrous policy, it's a pretty good way to stick to pure power and not really "cheat" ever consider a nice centrifugal supercharger? l'm not sure about your budget but centrifugal blowers are kind of expencive. but the intercooled ones are really really effective, or so l've heard. as for a 4.11 in the 700 R4 stick with the 3.73, the first gear in most R4s are really deep and it'l just be a waste of first gear.
a 4.11 may be actually counterproductive, stick with the 3.73 l think you should be pretty close to 12's with your setup, sounds like you got a lot of horsepower brewin'
good luck beatin the rustang

 

That 110-114 mph is not an accurate way to do ET. Yes, cars in the 12's do that mph but it is an average over the last 60 or 100' I forget. Trust me.
I have a G-tech and it does not average the last part like a real track and gave me a 112mph with 13.9
I went to the track and still had the 13.9 and 101mph. See what I mean?
I'll say you can go 12's but not as you are current. My guess is unless you can get some track times and do some tuning, you will need to shoot for around 120mph with your "street quarter" method.


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86 Camaro Sport
383 Speed-O-Motive Crate Engine, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Dynomax Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
My Camaro Project

 

Thanks for all the input. I plan to go to US 41 dragway in pretty soon. Right now the weather is still crappy in Indiana and the track is only open on Sundays if it is clear and above 40. Thanks again.