Hi,


I did a search and could not find what I was looking for. I was just curious roughly how fast is the WRX 0-60 and 1/4 mile, if you don't launch? I am asking because one test of a 5 speed produced a 0-60 time of 7.3 sec, supposedly that was without a launch. I thought it would be in the mid 6s.

thanks

Subaru originally published 0-60 of 6.5 and 1/4 in the high 14's. That would be without a high rpm clutch drop.

It wouldn't be very good.

You can still get marginal times by revving a little bit. Not like 5k clutch drop. I have only done really fast starts about 6 times. I do auto x it and launch fairly hard but it doesn't snap my neck back.

If you are talking about starting normally then mashing the gas, I would say your estamate would be correct.

CarTest2000 (http://www.cartest2000.com) Automobile Acceleration Simulation software gives the following for 0-60 and 1/4 mile runs w/o high-rpm clutch dump launches:

2000rpm Clutch Slip Launch: 7.81s, 16.38s @ 91.58 mph
2500rpm Clutch Slip Launch: 6.93s, 15.56s @ 92.04 mph
3000rpm Clutch Slip Launch: 6.35s, 15.05s @ 92.09 mph
3500rpm Clutch Slip Launch: 6.35s, 15.06s @ 92.11 mph
6000rpm Clutch Dump Launch: 5.90s, 14.62s @ 93.66 mph

A good, non-abusive place to launch with reasonable performance seems to be 2500rpm or so. I don't own a WRX so I couldn't tell you first hand - I drive an Accord V6 (lightly modified) but might buy a WRX in the future ;)

If there are mods available that can help to lower the spool point of the turbo then that would probably help with lower RPM lauches on the WRX tremendously since this engine makes most of its power from the turbo :)

Originally posted by gabedude
Subaru originally published 0-60 of 6.5 and 1/4 in the high 14's. That would be without a high rpm clutch drop.

probably, but why bother launching like that. It seems slow because if you bog, you get turbo lag and end up being slower than a 'normal' 2wd. From a roll. the WRX is still very fast.

Originally posted by SteVTEC
CarTest2000 (http://www.cartest2000.com) Automobile Acceleration Simulation software gives the following for 0-60 and 1/4 mile runs w/o high-rpm clutch dump launches:

2000rpm Clutch Slip Launch: 7.81s, 16.38s @ 91.58 mph
2500rpm Clutch Slip Launch: 6.93s, 15.56s @ 92.04 mph
3000rpm Clutch Slip Launch: 6.35s, 15.05s @ 92.09 mph
3500rpm Clutch Slip Launch: 6.35s, 15.06s @ 92.11 mph
6000rpm Clutch Dump Launch: 5.90s, 14.62s @ 93.66 mph

A good, non-abusive place to launch with reasonable performance seems to be 2500rpm or so. I don't own a WRX so I couldn't tell you first hand - I drive an Accord V6 (lightly modified) but might buy a WRX in the future ;)

If there are mods available that can help to lower the spool point of the turbo then that would probably help with lower RPM lauches on the WRX tremendously since this engine makes most of its power from the turbo :)

That's odd. Even when I totally messed up the lauch (2.0-2.3 60') I NEVER ran a 15 anything. Also, that sim software isn't really that accurate when it comes to launching. I too have a version at home. I'd say with a bad 2.0+ launch you can run 14.7's. With an average driver/launch you can expect a 14.4.

-C

Originally posted by TypeC
Also, that sim software isn't really that accurate when it comes to launching. I too have a version at home. I'd have to agree with you because it gave something ridiculous like a 10s+ 0-60 and a 1/4 mile in the 17's for a 1500rpm slip launch. A 4-banger Camry auto could beat that! :lol:

I *know* the WRX will do better than that. Thanks for the other info as well. It's good to know that you can still get 14's in the rex w/o abusive launches. :)

Steve

Originally posted by TypeC


probably, but why bother launching like that. It seems slow because if you bog, you get turbo lag and end up being slower than a 'normal' 2wd. From a roll. the WRX is still very fast.

I make it a point to practice launching at anywhere between 3 and 6K RPM from every stoplight I hit. Just depends on what I feel like doing at the time.

:D

should be around 6.6 same as the S4 and 330xi per the Car and Driver test..

Tonight, using a G Tech meter (not the most accurate thing in the world) I got a 5.89 (best time, avg over 3 runs was 6.0) with a 4k slip, no dumpage.

Car is stock, except for a K&N panel filter.

I've always done a slip-launch from about 3.5K when I wanted to go fast. The couple times I dumped the clutch it felt slower for some reason. Maybe I was dumping from a lower RPM, but I just feel bad doing that to my car. I'll slip-launch her all day though!

Ok, dumb question just so I'm clear. When you say "dump launch" are you talking about letting your foot just slide off the clutch so it pops up instantly.

Originally posted by yakabazzi
Ok, dumb question just so I'm clear. When you say "dump launch" are you talking about letting your foot just slide off the clutch so it pops up instantly.

yes. He means going from pushing the clutch in all the way to fully releasing it. And that only works well when you build boost first (floor it for a second before you pop it). BAM! 1.8 60'! Gotta love it. That alone usually gets me about 3-4 instant car lengths on people! :D
I only 'launch' when I'm at the track or in a serious race. During normal traffic I let it bog a little, then let the awesome tq come in at 3-4K.
-C

my friend went to a track with his wrx, never drag raced before in his life, he didnt slip or drop the clutch at any rpm, just took off like how a normal (non racing) kinda person would, and he got a 16.3 0-400.