Camrs89

I bought this car with a goal of breaking into the 12's in the 1/4 mile. My engine builder said it would be 400 horses on engine minimum. So given that and the mods listed below, provided I got traction, what would my car run or will I get into the 12's

------------------
1989 Camaro RS, 355 engine, 4 bolt block, 11.5:1 compression, 305 heads--ported, polished, milled, 3-angle valve job, 2.02 intake and 1.60 exhaust valves, Edelbrock rpm valve springs, 1.5 rockers--, Keith Black pistons, solid lifter cam, Edelbrock RPM intake, 750 cfm Holley, Holley Red electric fuel pump, MSD distributor, Turbo 350 w/B&M Shift kit, 3.73 Richmond Gears, Hooker headers, Flowmaster exhaust



My Pontiac's (my babies)
1972 Pontiac LeMans, 2 Door, red with tan top, 350 V-8, Edelbrock Perf. Intake, Rochester Carb, Turbo 350 trans with B&M shift kit, Dual Exhaust

New Addition (Don't tell my girlfriend!! [she found out...whoops]) 1968 Pontiac GTO, Rust free body, White with Black Interior, Original 4-Speed Car, 400 V-8 engine, Hideaway Headlights, Positraction Rearend

http://www.fbody.com/members/Camrs89/

Nic

If it doesn't get you into the 11's it'll be real close. It'll take a sticky tire to do so though.

------------------
1989 Mustang LX 5.0 Coupe
13.29@106.66 - needs more gear and converter

1992 Mustang LX 5.0 Convertible
14.23 @ 95.82 - 100% bone stock motor

1993 LX 2.3L Hatchback - "The Ride to VCU"

Moderator Stangtec.com, SN95.com

Co-Founder, Tri Cities Mustang Club
Amelia and Nic's Twin Terrors

Camrs89

I would be in car heaven if I hit the 11's. Everything is built right. Like the right cam and pistons for the heads and such. I just don't want to get to the track and hit 13's and have to repull my motor. Right now it's on an engine stand so if you guys think i need more or any other predictions, let me know. Thanks alot.

SSC

What casting numbers are your heads? I have never seen any 2.02's in a 305 head because they are closed chamber and theres no room. I have 1.94's and thats max for my heads.

All said that combo should get you there if you upgrade the suspension and as Nick said get some sticky tires. I say that because that combo should be capible of much more if you can keep it on the pavement.
SSC

------------------
85 Camaro Z28, Cowl induction hood, Black-355/TB400,3:42 posi, Tons of goodies but if you ask, "Its stock"
82 Firebird, White, red in six months-355/TB350,3:42 Powertrax posi. Not an insane amount of goodies but it runs like a motha!
76 Chevy C10, Firemist blue, 355/Muncie HD 3speed,3:73 TorqLine posi. Show me another 12sec@4800ft SBC street truck??
91 GMC 1500 Sierra 4x4, Red, Was 4.3 now the proud recipient of the Firebirds LG4. 305/5 speed.
56 Buick Special, OG Blue&White, V8/auto. Maybee one day I'll get it going.

Camrs89

The castings are the 601 heads, supposibly the best 305 heads i was told. They might have been 1.94 valves, but i want to say i was told they were 2.02, but you may be right, i'll have to check.

The heads were for a circle track race car. The guy who builds my engine runs at a speedway in town and says that the engine he built me he has run the same combo before on a circle track car. I got the heads for $325 for both complete, so I'm not complaining.

"All said that combo should get you there if you upgrade the suspension and as Nick said get some sticky tires. I say that because that combo should be capible of much more if you can keep it on the pavement."
Were you talking about breaking into the 12's or 11's? And what should I do to make sure I get traction. I know slicks, any other tricks? Thanks again




------------------
1989 Camaro RS, 355 engine, 4 bolt block, 11.5:1 compression, 305 heads--ported, polished, milled, 3-angle valve job, 2.02 intake and 1.60 exhaust valves, Edelbrock rpm valve springs, 1.5 rockers--, Keith Black pistons, solid lifter cam, Edelbrock RPM intake, 750 cfm Holley, Holley Red electric fuel pump, MSD distributor, Turbo 350 w/B&M Shift kit, 3.73 Richmond Gears, Hooker headers, Flowmaster exhaust



My Pontiac's (my babies)
1972 Pontiac LeMans, 2 Door, red with tan top, 350 V-8, Edelbrock Perf. Intake, Rochester Carb, Turbo 350 trans with B&M shift kit, Dual Exhaust

New Addition (Don't tell my girlfriend!! [she found out...whoops]) 1968 Pontiac GTO, Rust free body, White with Black Interior, Original 4-Speed Car, 400 V-8 engine, Hideaway Headlights, Positraction Rearend

http://www.fbody.com/members/Camrs89/

88 427 Camaro

400 hp (at the crank) will net you high 12's to low 13's unless it's a stripped out light weight drag car with a lot of converter 3500+ and a lot of gear, then maybe low 12's.

Just my guess.
Miles

------------------
88 427 BBC Camaro
7.76 @ 94 (1/8 mile) 10/01
12.18 @ 113 (1/4 mile) 10/99
I have brand new series 3 9 bolt carriers and gear sets to 4.10 available for borg warner 9 bolts. Check my web page for more info.

http://www.koolmeister.com

85transamtpi

SSC was correct...you cant fit 2.02/1.60 valves inside a 305's bore. If you could get 400hp to HOOK UP, then high 11's should be no prob. Dont forget you'll have to spend money on suspension/drivetrain goodies also.

SSC

I suggest you get some rough data as soon as possible find a guy with a G-Tech or get one. It may not be accurate but as long as it is consistant it will do. "of course sZrew that if you local track is open" Air shocks are the cheapest and best mod to start out with, IMO of course. Anything you can do to firm up the rear will help alot. I highly suggest you visit the SPOHN site and take a look around for bits and pices. If im right your RS doeset have very good suspension parts in the back, atleast not any of the 89's ive saw did so look around for some upgrades that will firm up the rear.
Good Luck!
SSC

Nic

I guestimated the high 11/low 12 based on an assumed 3500 lb race weight and 400 hp at the crank which should be good enough for around 112-115 mph.

BuckeyeROC

My guess is mid 12's with pretty good traction.

------------------
89 IROC-SuperRammed 355 w/ AFR 190's and LPE 219/219 cam-http://www.geocities.com/buckeyeroc

SoCo80p

iTrader: (5)

is that 400 RWHP or engine HP? from looking at your bio it sounds like 400 engine so figure about 300 at the rear wheels and that will be a solid low 13 second car with probley a crack into the high 12's now an agian

Camrs89

Yeah, it is 400 at the crank, but then i have the turbo350 and 3.73 gears.

Do you guys think I need to go with different gears cause i could get rid of the gears to my friend. THanks


------------------
1989 Camaro RS, 355 engine, 4 bolt block, 11.5:1 compression, 305 heads--ported, polished, milled, 3-angle valve job, 2.02 intake and 1.60 exhaust valves, Edelbrock rpm valve springs, 1.5 rockers--, Keith Black pistons, solid lifter cam, Edelbrock RPM intake, 750 cfm Holley, Holley Red electric fuel pump, MSD distributor, Turbo 350 w/B&M Shift kit, 3.73 Richmond Gears, Hooker headers, Flowmaster exhaust



My Pontiac's (my babies)
1972 Pontiac LeMans, 2 Door, red with tan top, 350 V-8, Edelbrock Perf. Intake, Rochester Carb, Turbo 350 trans with B&M shift kit, Dual Exhaust

1968 Pontiac GTO, Rust free body, White with Black Interior, Original 4-Speed Car, 400 V-8 engine, Hideaway Headlights, Positraction Rearend

Camarokid01

I would say mid 12's to low 13's if you can get the car to hook I would not say 11's.
just my guess

paul_huryk

400 honest horsepower will net (in a 3500lb car) somewhere in the low 12's at 112-115mph - depending on gearing and traction. You don't need to spin a 350 past 6000rpm to do that if the motor is matched well. Unless you have a car that weighs under 3400lbs, 11's are probably not going to happen. But get a 200hp NOS kit and skip right into the 10's for $750 or so.

David 91RS/Z28

If that engine IS making 400hp then mid to low 12's is very possible with traction. My engine is about 400hp/480tq and so far I've run a best of 12.07 on a 1.78 60 footer.

IROCZTWENTYGR8

iTrader: (1)

U wouldn't know how much the car weighs exactly would u?? Also, yeah G-Techs are a good thing to have for this kinda stuff.

Camrs89

Yeah, weight wise i am running a "stock" car, full interior and nothing taken out, i have ditched air conditioning and emmissions. Thinking about racing seats and a roll cage for if I break into the 11s.

The engine is built right. The builder says he has put this same setup in circle track cars before. The heads (which are heavily worked is an understatement), the cam which has a lift of 510 (not sure on other info), and Keith Black single eyebrow pistons, where all matched for max HP.

Any other guesses or suggestions is appreciated.

Jay

iTrader: (2)

411 RWHP (dyno tested) in my friends 79 Camaro Berlinetta with a TH350 and 3.91 gears he runs very consistant 12.1s with traction problems. Stock rear suspension is hurting him big time.

323 RWHP in another friends 91 Z with T5 and 3.73 gears and his best is 13.2, again traction problems.

191 RWHP in my 87 IROC, 700 R4, 3.27 gears = 14.2

JungleJim

Last I heard 1.99 was the largest intake valve you could stuff into a 305's 58cc combustion chamber.........................

Camrs89

I know that those valves are the biggest ones that will fit in there. HrdRockA4305 will back me up on this. He was there when I bought them and the valves are practically touching each other. The heads were extremelly work. They are supposed to be the best 305 heads out there that the guy worked on. ...601 castings and i don't believe they were centerbolt either. anyone know anything on these heads???

Anyways, the engine should be in the car in February so I should have a rough idea of performance in the car. Need a g-tech too

Greg90iroc

ok with the right converter and the th350 you can easily get 11's with a little weight reduction. i know a guy that runs 12.0 with an ls1 that has the stock gears full interior a muflex catback MAF ends ,a wisper air filter setup and a yank 4400 converter. the converter took his car from 12.8 to 12.0. these times are on slicks with the stock suspension. he pulls low 1.6 60 foot times. Aperantly it is all in the convertor. just slap a 3800 to 4000 yank convertor in the thing and it will run some numbers. I bet that you could get an l98 car into the 12's with out touching the engine. at one time i thought i could do it on street tires with the stock engine tranny and rear end. So surely you will be able to do it with 400 hp.

AlkyIROC

That's why so many stock eliminator cars run so quick. The proper camshaft and gearing. An 8" converter stalling at around 5500, 30x9 slick and 5.13 gears. A 305 can run 11's

Camrs89

I found some more cam info from my builder. He had more info, but i have a bad memory. 510 lift and 298 degrees duration at .050. Any thoughts on this?

Also, i bought the TCI Saturday Night Special conveter with a stall around 2,000

88 427 Camaro

I think you mean at .005 (ie advertise duration). Typically .050 is a better comparison between cams and is likely 235-240 @ .050 for your cam. Which is a lot of duration for a street car. You will probably need a vacuum booster.

Miles

O2BQIK

Why such a low convertor? I'm a manual guy but the auto people I know (mostly LS1s) don't go anywhere without their 3500's at least. Many are running 4500s.

I think with a stock tranny setup a 400 hp thirdgen could hit low 12's with suspension. 11's would be possible with a good convertor and some practice.

Camrs89

Yeah, i still want the car to be streetable though.

360Iroc

heres my setup it turns 450...