thaigleshmk

Ok guys...

I recently bought this car, It's a M6 with just a catback on it.

I recently put a lid on it... And I was assuming that my car should have around
300 Rwhp on my car right?..

But my buddy who has a gs-t (eclipse) running about 20psi... He dyno'd the car and it made 270fwhp...

we raced from a 40mph roll... Up to about 120..

First I took off on him but once he's spooled ... he's gone... !!!!

How The F.. could this be happening...?!?!?... He has only 270fwhp. and he beat me?. Is it my car that's F'd up? or what?..

I'm gonna do the full tune up on my car right now and see if it will be better or not... But yea.. I got smoked by an Eclipse Gs-t ...

Btw - What rpm were you suppose to be shifting at..? I shift at 5,500rpm? Is that too high or too low?. Should I be shifting at 6k ?

MillaTK

Your car is probably running just fine dude. His car is a lot lighter, which will make up for the difference in power. Comparing just HP to HP is a poor way of comparing how cars will run against each other. There is so much more to it.

95N20FORMULA

iTrader: (3)

I shift at 5500 in my lt1 and i know ls1's will wind higher so yea shift around 6 im guessing for a stockish ls1...that would honestly make a big difference....
Example
I was first shifting at 5200 and running 9.10's at 79-80mph and then started shifting at 5500 and was running 8.90's at almost 82mph so i picked up almost 2 tenths and almost 2 mph buy just increasing my shift points by 300 so i say u doing the same would help u alot....

thaigleshmk

Ok thanks, I'm gonna try to shift at 6k from now on...

kyle91z28

iTrader: (1)

I shift at 6k or a little after

BoOsTeDeAgLe

Don't worry about that too much, 270 in a FWD Eclipse will make for a decent highway roll car. If you put that power in an AWD model it should be getting low 13's, but the FWD's will get a better MPH.

Louie83

iTrader: (3)

A Hyabusa makes less power than you but it would probably beat you too.

Don't worry about it man, just buy some mods.

thaigleshmk

Yes I understand but guys, Eclipses aren't that light... I mean it's like 3,000lbs.. I believe. But still... :'(.. I need some longtube headers back now...

jimmy169

Your car is a lot heavier, hp isn't everything, live n learn. Power to weight is what really counts. It's kinda funny that u automatically assume something's wrong with ur car, lol, 270whp is more than enough for him to beat u no problem. You'd have a hard enough time with an awd with that kinda whp, a fwd is even lighter.

jimmy169

The awd's are around 3k to 3100lb's I believe, yours is what 3400lb's? The fwd is even lighter, prob 2800lb's. Out of curiousity, is this a 1g or a 2g? 95-99 or a 90-94?

PewterScreaminMach

iTrader: (7)

You aren't getting to all of your power by shifting at 5500. Run it right to 6000 and you will probably pick up a bit. Remember that the higher you shift, the higher RPM you start at in the next gear, and the opposite is also true. Shifting at 5500 is going to start you lower in the next gear, which means less power when you let that clutch out (shifting higher is more than for just peak numbers when you are racing).

Also, I am seeing different numbers weight-wise for that Eclipse, but assuming he weighs around 3,000 pounds, he should still be walking away from you from a roll. My brother and I both have 2002 Z28s and they both weighed in at about 3450. The rough rule for weight advantage/disadvantage is roughly 10 whp for every 100 pounds.

With that in mind, you are probably making no more than 300rwhp with your LS1 intake and, therefore, he only has 30 horsepower less, but weighs about 450 pounds less. According to the numbers, (which of course don't always matter or add up, but seem to in this case), you need about 15 more rwhp to keep up.

PLUS, take into consideration the drivers. It sounds like he's had his car longer than you (you said you just bought yours). Practice, get some long-tubes, cold air, and a pulley, and you should be good to go.

Unless he is spraying...hahaha.

craz28

iTrader: (10)

...should have gotten an ss. haha just kidding

Quik Z06

iTrader: (5)

^ Lol should have got a GST J/K, im sure once you learn to drive your car better it will be closer. How bad did he beat you?

SStheBest

iTrader: (2)

u must have had sombody tune ur car if ur shiftin pass 6k....b/c other wise the stock tune isnt gonna allow it

1SLO6

iTrader: (8)

just put some nitrous on and even the field...

jimmy169

lol, I am a dsm fan but the whole time I'm thinkin, if he tossed on a 75-100 dry shot, that gst would be seeing his tail light's in no time.

Finite1

iTrader: (3)

I think those are 210fwhp stock?.. so 270 would probably rape up on a stock ls1.

Irunelevens

They're 190-210hp at the crank, depending on year.

BayAreaSS

iTrader: (10)

Outcome sounds right to me. He weighs quite a bit less than you....I would shift around 6k instead of 5500

Sparetire

Short shifting will hurt you big time. Thats the first thing to correct.

And loosingto a 270WHP car with a weight advantage is not shame. Get yourself some basic mods and drive more effectively and it will be a different story.