89formula350b2l

iTrader: (11)

my car 89 formula 385, eagle stroke kit, hsr, comp cam (224/230 int/exh lobe lift .335 intake .340 exhaust valve lift .503 intake .51 exhaust), sfr 195cc heads, edelbrock tes headers, 3" cat back (dual cats) speed density setup, bbk 52mm tb versus ls1 with cat back, headers, intake manifold and z06 camshaft. both cars are 4spd automatic prediction on from roll and from start?

fly89gta

iTrader: (1)

What kind of intake manifold?

He already has a LS6 intake so I doubt he upgraded.

Mike97ZJ

I'd say you'd get him off the line, because you probably have more low end.

Ultimately though, I'd say he'd win, since those cars typically dyno around 290 RWHP stock. With mods he's probably closer to 340 or so.

Of course it depends on the driver and traction, too.

ShiftyCapone

iTrader: (7)

It should be a close race with his car putting down 350+hp at the wheels. Should be a good race.

Orr89RocZ

iTrader: (20)

close race for sure.. you might be lighter than his TA if he's fully optioned. TA race weights are always around 37000-3750 dependin on driver lol

your 385 seems stout. fairly mild cam but plenty to make good power. between that LS1 and your motor, i think the power numbers are fairly close.

Marc 85Z28

iTrader: (3)

You're going to get smoked.

But, I have a couple of questions too...

1. Whats wrong with your motor? 275rwhp is terrible for a 385" with AFR heads, HSR, etc.

2. Why the 3.08 gears? No mention of a converter?

1991CamaroRslow

iTrader: (3)

Those numbers do seem low, what kind of dyno was that on? As for "getting smoked" I don't see that. I think it will come down to tires and traction.

Orr89RocZ

iTrader: (20)

edit, didnt see the numbers listed in the sig... 274whp seems very low for those mods.. unless thats an old 350 motor combo....even still seems low.

if its real numbers for the 385, then yes you will get smoked.. that LS1 will be atleast 350whp

5678TA

i hope those numbers in your sig are from the 350 mentioned in your sig.. and not the 385.. with those afr heads, you should be at least 350rwhp.. i think the TA will win.. my 385 makes about 350rwhp and i go 12.4.. LS1's make around 300rwhp from the factory.. and LS1's are very responsive to performance upgrades..

my prediction is that it will be a close race with the TA walking away..

BlueRocket350

I have an 87 Formula with a 383 and miniram intake that I had dyno'd. It makes 315 hp and 350 torque at the rear wheels. I also have 2002 Transam that is stock. Both are automatics. I never dyno'd the Transam.

On the same night and same stretch of road, I made several passes in both cars using a G-timer. The Formula consistenly ran 12.9 to 13.1 at about 106 to 107 MPH in the quarter. The Transam consistently ran 13.3 to 13.4 at about 105 to 106 MPH. The Formula did have BFG drag radials and the Transam just had the stock tires. Although, all indications are that the Formula would win a heads-up race against the stock Transam, it is going to be relatively close.

With that said, given your rear wheel horsepower, I think you will get smoked by a modded Transam.

Marc 85Z28

iTrader: (3)

He's running an LS1 with full exhaust and a cam, even if its still a small LS6 cam. There's a likely 60+ rwhp discrepancy here... Again, I say it will be ugly for the 89

89formula350b2l

iTrader: (11)

the 275hp is old motor im expecting 350hp to wheels with new motor the new motor being the 385........the 275 was just stock engien with head/cam and hsr i will also have a 2100 stall with the 385
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well the old 350 motor didnt get rebuilt either that or the SOB's didnt know how to do a rod bearing b/c the bearings went bad in the 350 and then i was like hmmmmmmrebuilding the 350...why not do the stroker while it is apart???

89formula350b2l

iTrader: (11)

by the way the 2001 TA after the cam swap made about 350hp to wheels after dynotune

CleanRS

what kind of intake manifold are you running?

1989GTATransAm

iTrader: (3)

IMHO the Edelbrock headers are choking the motor. Especially if you just bolted them on.

89formula350b2l

iTrader: (11)

headers have been on there a while....and they had to be welded....dual cats are a SOB

i am running HSR intake

88 350 tpi formula

iTrader: (9)

go long tubes and give the ls1 a run

the raised head ports on the ls1 heads allow for a better tq to hp curve (it is a narrow tall port that promotes tq and has enough volume to feed in the higher rpms) even with somewhat mild cams. it's kinda like compairing a turbo motor making 300 hp and a N/A motor making 300 hp at the same rpm. run the two cars and it's a whole differant story. you will need to flat out over power the ls1

R4][N_M4l{3R

Should be a close race, i'm interested to see how it turns out.

89formula350b2l

iTrader: (11)

me too waiting for weather and getting the engine back together lol

rocluvr0013

that car is begging for a higher stall.

You should win, but it could go either way. Dont botch the launch.

89formula350b2l

iTrader: (11)

we are going from a 30mph roll bc im afraid of snapping my rear end/axle and he cant launch that thing...actually he never could

rocluvr0013

I really doubt your going to brake that rear end unless you start running DR's or better. Limited traction should come into play before broken rear end.

Besides your running an hsr which trades off a little bottom torque for top end hp.

Predictions? Honestly it could go either way. I say drivers race. An ls1 with full exhaust some intake mods and a cam is a pretty potent runner. If hes got the tune right and if he had a stall and sticky rubber hed have no problem running 12's

Same goes for you. In fact since your running speed density i really hope youve had some kind of tuning done, and if not your in dire need.


Run him already and find out.

1991CamaroRslow

iTrader: (3)

Glad someone agrees it's a drivers race. I just thought up a saying to go with this: What's the difference between a 350 and 400hp cars times? The Driver. It works in many situations beside this but it fits here.

89formula350b2l

iTrader: (11)

that is what i thought too....my limited slip is worn out....right now it has 277 and worn out l/s i have used 327 and used limited slip with that....im thinking ab installing it before hunting this guy down.

87TPI350KID

i gaurentee you he is spitting out the same hp numbers as you, but those ls1s have a nasty torque curve. Good luck

83 Crossfire TA

iTrader: (2)

On the street… it almost always is. There’s a lot of really crappy driver’s on the street that would be very surprised and then educated if they took their cars to the track. A lot of those driver’s may have legit 12s or so cars that will get beaten regularly by a good driver in a decent 14s car.

That being said, assuming similar drivers… we’ve got another problem, that engine combination should be making MUCH more power, and if it was it would be a winner if it wasn’t for that.

89formula350b2l

iTrader: (11)

what engine combo? if you are talking about my old 350 yes i know that and the bearings were all jacked up on it. and in fact i had to get the engine rebuilt bc the bearings went. that is why i am getting a 385

Street Lethal

iTrader: (16)

On paper, it makes for a great race. But we won't really know anything for sure until your engine is in, and tuned. If the LS1 is stalled, it's more than likely going to pull you from a roll, thats for sure. You might have a chance from the dig (up to a certain point though)...

RITTER

iTrader: (5)

I think the 385 will have problems against the LS1 mainly because of the LS1's power curve compared to and older V8 especially a stroked one. The LS1's don't stop pulling until like 150mph, I think you're going to be in touble in your '89 man!!

89formula350b2l

iTrader: (11)

well my dyno couldnt be finished b/c stock fuel pump and injectors cant handle it however best so far is 311 rwhp at 4500 rpm and a VERY flat torque curve of 350rwtq. And i heard through the grapevine he is getting a better cam and head swap. The guy doing the tuning for both of our cars thinks he will be at around 420 rwhp. so after my 383 im thinking of 75-100 shot.

eschevyrda

**** thats scary

TTA 1387

I see this all the time and can't figure out why everyone says this. At 2000rpm, a modded LS1 is already at 300rwtq. And it just goes up from there and carries quite a long way.

Heck, even LT1 cars made a lot of torque down low. Pretty much even with a 350 TPI car but again, everybody seems to think a TPI car is king of torque in the V8 wars.

The LS1 car should take the 385 car. More so, if the guy could launch.

rocluvr0013

His 385 really doesnt hav much in common with a stock L98 any more its a stroker hsr and cammed engine...

Zepher

iTrader: (1)

My money is on the LS1. They are nasty from a roll.

DIGGLER

iTrader: (1)

this is why the LS1 is the internet god of engines. lol
i would be pissed if my 385 with afr 195's made less than 350rwhp.

89formula350b2l

iTrader: (11)

The dyno isnt done yet. I still have 2000 more rpms to go. The engine is running out of fuel at 4500 rpms.
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i dont disagree with that either.