smokumZ28

I have a 84 camaro with a 383 running 410 hp and 450 tq at the crank. I have a th 350 tranny with a ratched shifter and 373 gears for the rear end. Running stock tires.

Slayre

If you hook up decent, Im thinking maybe mid, low 12's.

3rdgenZ

iTrader: (1)

i think id be closer to high 12s, but at least low 13s

DIGGLER

iTrader: (1)

low 13's.

Slayre

There are some variables that take place Im sure your aware of, traction being one. Street tires you probaly wont get the time you expect but like I mentioned earlier get some stick to your launch and youll be pretty pleased Im sure. My race partner has a 76 shortbed with a 355 and roughly same HP maybe 10 more. same gears and same trans. He runs a pretty tall tire and has run the best of 12.60. His truck weighs 3500ish. If that helps you any
What does the 84 Camaros weigh? Is yours stock, or been lightened up any?

Trevor86TA

Mid 13 second ET, high 12 second MPH.

five7kid

iTrader: (14)

How was the 410 HP determined?
What stall?
What exhaust?
What intake? Carb?

3.73 gears and stock tires sounds like spin city to me. 60' in the 2+ sec range.

Slayre

Why would parts matter? If thats the power he has and the setup hes running parts should not matter. Im surprised no one has told you to do a search yet. Seems to be a pretty common reply here I noticed.

87TPI350KID

Depending on your suspension, and stall alone can be worth .3 seconds ALONE in your 60ft. Some more details would be nice.

A turbo 350 has a pretty tall 1st gear compared to a 700, so im not real sure on that, but i would have ran some more gear to get it out of the hole harder, or atleast a 3500+ stall.

Trevor86TA

Maybe you should search and read then because there is no way a full weight thirdgen will run low 12s with only 410hp and stock rubber.

Slayre

Back up and read yourself, It doesnt mention if it is stock weight or not, thats why I asked if it had been lightened or not. In stock form I know it wont But if its been lightened abit and had traction the outcome might be different.

five7kid

iTrader: (14)

Parts matter because peak numbers only tell you that - the peaks. Parts that can produce the same peak numbers can make vastly different power at the lower RPMs.

Since the peak torque is quite a bit higher than the peak HP, it's a good guess that this engine makes its power below 5000 RPMs. That being the case, if he's got a single plane intake on the engine, then it's going to be a gutless wonder at, say, 3000 RPMs. Conversely, if the intake is limiting high RPM power (like a stock cast iron intake), it will just slow the car down the entire track.

Ditto with the carb - if it's a VS carb, or a Performer carb, it might have a decent peak HP #, but the power coming out of the gate could be very lacking.

If the dyno numbers were obtained with dyno equipment such as velocity stack, headers, electric water pump, no alt., etc., the numbers in the car could be significantly less.

That's why the question.

Slayre

Thank you five7kid. Some knowledge to back up an answer. Like myself, alot of folks come to this site to gain knowledge and get answers they can use. Explaining your answer like you have done goes along way and makes a big difference.

Blackroc86

The street tires aren't going to help the 60ft thats for sure. I have seen a guy with a bit more power smoke street tires all the way down the track...

Trevor86TA

I am aware that weight is mentioned ... call it expeirience from reading a lot of posts in this section but if someone lists "ratched shifter" as a one of the 5 most major modifications to there car when asking for opinions on what there car would run then it isn't lightened.

Trevor

Slayre

Fair enough... I never try to assume anything. I always try to obtain as much facts before I give an opinion. To get back on the subject I think 12's are possible with a good launch ( hard to do with street tires ).

1989GTATransAm

iTrader: (3)

My motor has almost the same torque and horsepower but a 355. Also a heavier car and most likely driver. Hahaha. Anyways check my signature for times etc. You SHOULD be able to run a 12.60 if not lower with a good hookup.

smokumZ28

Hello thanks for all the info. Im the owner of the camaro. I have lighten the car a little. I got a fiberglass hood and removed the heater and a/c complete system. I got the horse power dyna at the engine shop when i bought the engine. they hook them up and dyno it while i was there. I have a 2400 stall and a holley 750 4 barrel carb and a holley dominator 2 plain intake and running a exhaust cutout to run open exhaust and a bullet exhaust when not running open exhaust. Im going to the track here in a couple of months to see how it does. thanks Dave

83 Crossfire TA

iTrader: (2)

Five7kid and Tervor are both taking a somewhat logical approach, but are somewhat missing the boat. Given enough parts info we can predict what the car is capable of doing, given that and enough info about the driver we can predict what he’s likely to run.

Simple answer: 410hp in a typical 3500-3600# (race weight, with driver) f-body is enough to run a 12.0@114, maybe even a high 11 on the right day. A lightly optioned camaro with a small driver could get a bit under that, OTHO, all my stuff ends up in the 3700# range once you add 300# of me.

Will this car run that? Even given the limited info that we have we know that it will be nowhere near that.

- do we believe the dyno numbers? 450lb-ft out of a 383 assumes a VE of around 104%. Already doubtful on any but the very best built/optimized engines, and not in the form that they will be bolted into an f-body (headers/exhaust at least unless you’re running long tubes…)
- even assuming that we believe the numbers… I think that five7kid is a little off, I’d expect that HP peak to happen in the mid – high 5xxxrpm range, and the torque peak to be in the 4000-4500 range to make those numbers. For this thing to run that best time it would need around a 4K stall converter, 4.10 gears and either sticky tires or a damned good driver, best case, both. Based on that, as it sits from the info that we have I’d say that the car is still capable of a 12.6-12.8 but will probably end up running a 13-13.5…

87LS

Sounds like a decnt engine there..
Your big factor is going to be traction from what I can see...
Ditch the stock tires and buy a 300 set of Drag Gadials and you car will be some serious fun....
I'd say with Dr your in Mid-High 12's..with what you gave us....
Too many variables to be certain