SC3005SPD1

Is it because we dont have a lsd? Weigh too much? I have a stock 1jz 5spd and I was just racing a auto mustang gt. He jumped off the line on me and I couldnt catch up. but to think of it... off the line I havent been able to catch anyone. (yea i need to go single... thats comming ) Any thoughts?

JesLet

iTrader: (19)

His Mustang is just fast. I have 1UZ-FE motor and I think it's ok for DD.

MT Photo

I'm sure weight is an issue.

The SC's are heavy.

You have a 1JZ, yes, but I'm sure he has you on torque, seeing as it was a GT.

turbodremz

iTrader: (18)

stock GT gear ratios are made for 0-80mph...not sure what the ratio is on it, but i know that top end on them isnt great with out a gear change..

also weight is an issue...i'm still new to the SC sceen, but i know GT's are quick from a dig..

Lex-Fiend

+1 ^^ An LSD will definatnly help, but you have to take into consideration your suspension, rim diameter/width. Was the mustang completely stock?

DaveGS4

iTrader: (2)

Are you losing traction? An LSD won't help you at all if you aren't... Unless you're getting better gearing long with the new rear end.

JspecSC3

iTrader: (4)

I always seem to have the jump on my NA. If I had a turbo and was having problem getting the jump I would probably look into 2-step and some drag radials.

Blizzy

iTrader: (-1)

As Dave said, if you are not spinning out the tires when launching, an LSD will help you no more than the open differential.

The SC is definitely not light, but it is no heavier than most luxury coupes. Off the line, overcoming inertia is your biggest hurdle (as you have not experienced much in the way of aerodynamic drag at this point).

A heavy car without ***** under 3k rpm will be a slug off the line almost regardless. A stock Chevy Cavalier with a driver that is good with a clutch can likely hang with the SC from 0-30mph with only 100hp because it has less inertia to overcome.

The GT Mustang is a pretty strong car off the line. It is lighter than the SC and makes tons more torque under 3k rpm.

Until you encounter boost, you are asking a 3600lb car with a 2.5L on 8.5:1 compression to hang with a high compression 4.6L pulling 3-400lbs less mass. You are going to get your butt kicked from a dig with 2.5L unless you start building your car for drag racing.

If you think a single turbo is going to help your off the line performance, you may need to reconsider.

The stock 1JZ turbos are super tiny and easy to spool. A larger single turbo requires more exhaust gas velocity and volume to overcome greater inertia at the compressor wheel. Although, the single turbo will allow you to reel in a lot of cars that you are unable to now by way of a much more authoritative power band on the top end.

SC3005SPD1

I tried not to spin the tires. I still kinda felt them spin. If I did a clutch dump I wouldnt have gone anywhere. Just sit there and spin. I have 19x8.5 and 19x9.5 with tt eibachs all around. Im not trying to make a drag car, just figure out a way to get off the line a little better.

Yes the mustang was stock.... I eventually caught up to him. But it doesnt help that the twins die out over 5,000 rpm

FormosaSC

sc is a luxury car, while mustang has no luxury, and build to race

audi2nr

iTrader: (1)

u have boost, now you need an lsd to help you get traction .

kyoso23

My V8 does fine off the line

DryBlaze

I out launched a bolt on mustang gt about one and a half cars. I got out launched by a rb swapped 240sx by 3+ cars because I pretty much rolled off the line because the flagger was retarded and his buddy but I got him in 3rd.

Fireblaze

A big issue for me, is that the clutch does not grab well enough to launch. Look into an aftermarket clutch. This will allow your car to launch faster off the line. Also, don't forget about Mustangs' low end torque.

phrozen

iTrader: (2)

its a boat thats why