Maro98

quote:
--------------------------------------------------------------------------------
Originally posted by 99blackSS

The Pontiac Grand Prix GTP which has the same engine as you, gets an extra 40hp from the SC. But you can buy a different pulley to get as much as 70hp. If you had 270hp you'd be beating more GTs then you could count.
--------------------------------------------------------------------------------
I already beat GTs now But that would be great to have a super charger mabye one day!

CamaroFrk2002

No way intake and exhaust can give you 20 hp at the wheels. To tell you the truth, I am impressed when I see 180-190 RWHP from a N/A 3.8. And that is RARE. You can always get the powerpack. That will give you quite a bit of hp, THEN you might see 200 or more at the wheels. Get 3.42s (or 3.73s if you already have 3.42s) High-stall torque converters help a lot for the autos. Honestly, the 3.8 will do high-14s N/A with a grand invested, but you will probably have to spray to squeeze much more out of it.

305man

A friend of mine here at work has a 98 Camaro V6. He's got the whisper lid, flowmaster cat back exhaust system w/ 80 series muffler, ram air, and the jet cpu programmer (I think that's what its called), and that's it. He beats the old and new Mustang GT's(I think the new GT's he races are auto) in that thing. I can't remember what he dynoed but he didn't even have the whole Ram Air thing on when he did it. I'll ask him when he gets in and repost later.

Bliggida

CamaroFreak You are under-rating power gains.

A cold air induction/Ram Air will gain you about 11 horsepower on average. 180 degrees minus 110 degrees (70 degree day) 110 / 10 (degrees drop equals 1 horsepower) = 11 horsepower

You can't tell me that with headers, Y-pipe, high flow cats, I-pipe, Catback exhaust that it will give you any less than 12 horsepower. So that comes to 23 horsepower at the engine, which if you subtract the 15% parasitic drag from the driveline, that comes out to 19.55 horsepower. That is without reprogramming the computer to take optimum affect of your new modifications.

Going from 3.23's to 3.42's would be the equivalent of adding about 11-12 horsepower.
Going from 3.23's to 3.73's would be the equivalent of adding about 31 horsepower.
Going from 3.23's to 4.10's would be the equivalent of adding about 53-54 horsepower.

And with gear changes, the power is reflected at the wheels, since they multiply your engine torque. So you don't have to figure in for parasitic loss.

So realistically, You take a Camaro 3.8L... run a full air intake and exhaust. Run an aluminum driveshaft, with 3.73's.
You should be putting about 220-221 horespower at the rear wheels, with an otherwise stock motor (just work on everything else) You should be able to run with any 260hp Mustang, Stock LT1 automatics, completely wipe the floor with 5.0L's, and keep up with mildly built Mustangs. And you haven't even cracked your motor open yet!!!

Hows THAT!!!

305man

Yeah with the mods I posted on my friends 3800 V6 he cosistently beats the new GT's, he says those were automatics with exhaust as the only mod that he's been racing but hey he he drives an automatic too and he's beating V8 cars. I say that beating a GT with a mildly modded V6 is more impressive than easily beating one in a V8 (Z28, SS, TransAm, WS6). And more humiliating to the GT that has 2 more cylinders Remember Fords don't tranfer power to the rear wheels well, especially compared to the Chevy made F-bodies. No matter how many cyclinders.

CODY BEHNKE

The gear ratio to HP calculations are false, By simply adding gears it isn't equalling HP.

And a car with CAI, Full exhaust, 3.73's and a aluminum driveshaft isn't going to be killing any LT1's! Maybe 1994 to 1998 Mustangs but nothing more.

305man

Since when did changing gears give a car more horsepower and torque? I haven't done any experimenting w/ gears, but I believe that all gears do is make your engine rev higher putting you closer to your peak (thats why 4.10 geared cars aren't very streetable, you'll be cruising at 30 mph at 4000 rpms). I think gears just give you more of your rear wheel horsepower and torque when you mash on it than you would w/ lower gears where you'd have to build up to that same point. But you don't get "more" horsepower and torque added to the car. You just get more applied on take off. I don't know how else to explain it, hopefully I got close to it.

Cody did I get close enough on this explanation?

99blackSS

This is true.

305man

LT1's may not be that much higher "at the crank" than a new GT horsepower wise (25 hp?), but remember Camaro's of any year or model (like the LT1) don't lose horsepower to the rear wheel like Mustangs will (a new GT). They're better made. Plus LT1's have more torque. Racing a new GT and racing a LT1 is like night and day. For a 3800 V6 to beat an LT1 it would need almost all of the aforementioned mods plus either a supercharger or a healthy shot of NOS.

bigsteve7

Gears multiply torque. Car transmissions work just like the gears on a bike. Say you have a 6 speed bike, you start out in first and go to 6th, 6th being better for cruising and first for acceleration. Imagine the rear cog on you bike being the transmission of a car.

Now the front cog. You can change that as well. Putting a "bigger" cog with more teeth will help you accerlate faster. You can now pedal your bike 3/4's of a rotation and have the same amount of chain moved as if you pedaled a full rotation on a regular front cog. I hope my analogy makes sense, but this is much how gears work on a car.

4.10s multiply more torque than say 3.23s by spinning at a different ratio. It doesnt make more power, it actually will sometimes make a little less.

The gain in acceleration will be equal to a set amount of hp at a different gear ratio though, which is why someone may say 4.10s will be as if youve "gained 50hp" over 3.23s. Theoretically a car with 200 hp and 4.10s would run the same accleration number as a car with 50 more hp and 3.23s.

Where the car with more gearing loses is the high end. Itll run out of gearing quicker. Top speed will be diminished in exchange for acceleration.

305man

That's what I was trying to say! You don't actually increase the horsepower of your car, its just seems "as if you gained" hp. At least until the top end when the gearing runs out. Thanks Steve! Higher gearing is kind of "like" getting more hp b/c you are peaking sooner therefore more hp is there for you to accelerate with when you mash on it. But actual hp does not increase. But it would have to multiply the torque hence the harder launch.

CODY BEHNKE

Oh, But still gears won't make any V6 into a V8 killer.

At the most gears may give you .05 in the 1/4

HAZ-Matt

That's funny

#7

Maro98,Back to the top,I cant tell ya how much hp gain you'd get.But I have those upgrades(on my 6) and I can say they will satisfy your urge for awhile and get you good gains.A BIG difference man,worth it.
T.

CODY BEHNKE

Go try it!