Best way to launch a manual?

[foxdie]

Done a quick search, can't immediately find anything bar this post that focuses on launch control devices, so posting this up on a separate thread..

What's the best way to launch a manual with and without a launch control device?

I've done a bit of googling and there's quite a few viewpoints on this for various cars except for ours. I've seen things as get the revs nice and high before dumping the clutch as quickly possible, some say slip but at the expense of wearing clutch etc..

One thing that seems more recommended is getting the car into boost, then dropping the clutch and letting the wheels spin.. I realise that this may not happen with some new Toyo Proxes T1-R's on..

Any advice welcome

[Atik]

Clutch down, 4000rpm, release clutch, hold tight, job done!

Or so I have been told. Cant bring myself to rev so high and hurt the clutch!

[MarkSanne]

Clutch down, 4000rpm, release clutch, hold tight, job done!

Or so I have been told. Cant bring myself to rev so high and hurt the clutch!

You should try that in a VR2 sometime! 0-60 in 30 seconds!

[MPBVr4]

Or so I have been told. Cant bring myself to rev so high and hurt the clutch!

mmm Agreed. Quickest way to stuff the transmission. Subaru boys wang it up to the limiter and "side step the clutch" ouch!!!!

[Atik]

Never really done any launches on my previous cars, but in the VR4, I keep to around 2000rpm, stay just under the biting point on the clutch and just as I release the clutch, get some more revs going, so just as the clutch bites, the revs are around 2300 and rising. If I catch the revs just right, which in my opinion is about 2600, the car goes like a rocket, but otherwise, I find it bogs down and only shoots off once the revs catch up.

[SGHOM]

3500 rpm, so your on boost, & drag the clutch briefly to avoid wheel spin. Don't drop the clutch.

[miller]

be brave, give it 4500rpm.....whats a clutch every 5k

[Nutter_John]

on a manual 5000+ rpm or and you will move like sh!t of a shovel , any less than that and you can bog down as I found a few times

6000+ will induce wheelspin but when the tyres have finished getting hot they grip like nothing you have felt before

but in simple terms , dont do unless your willing to buy a new clucth as launching really should be left to twin plates or tripple plate clucths

[foxdie]

6000+ will induce wheelspin but when the tyres have finished getting hot they grip like nothing you have felt before

Will the VR-4 drivetrain / manual box be able to cope with that? I know the AYC rear diff probably won't but then in my case I've got a S-AYC rear diff

[miller]

The Auto Box is prob a lot more reliable for launches than the manual box!

[SGHOM]

The Auto Box is prob a lot more reliable for launches than the manual box!

I launched my auto a couple of times :-)

[bradc]

The auto is much easier to get off the line consistantly fast, unless you are willing to be brutal with the clutch in a manual.

[ILLEGAL]

depends on why your launching in the first place!!
TRACK/CIRCUIT: if your launching in a track race, theres plenty of time during the lap/s to catchup on any lack of launch you may have missed out on. so no need to launch.
DRAG RACING: basically theres no excuse when it comes to drag racing, if your not going to drive it like its stolen, you wont be rewarded with a good time.

what i do is start off with a limiter launch for the first practice runs. then on the next few practice, drop it down to 6000rpm then to 5000rpm. every time you visit the track the surface will be different. after the practice session try and find the best rpm to launch that gives you the lowest 60' times. 1.9seconds should be the goal on your first night/day out. then while shifting gears dont lift the throttle, stay hard on it during shifts to get the most out of your run.

if you worried about stuff breaking !!dont race!! like i said, theres no excuse when drag racing. launching @ under 4000rpm? it takes more rpm to get your whale of a car off the line then that. once the rpm drops there is no boost @4000rpm launches unless you introduce some clutch slip... which is really the next step in launching. but if you can get the 60' time down to a 1.8-1.7 your doing well.

[richy rich]

You should not be launching yet any way.

[foxdie]

You should not be launching yet any way.

Lalala I can't hear you Kidding mate!

I'm trying to keep it under control, I've only done it once, fluffed it, thought I better ask before I try again

[Kryton]

be brave, give it 4500rpm.....whats a clutch every 5k

Well said! All of a sudden I miss having the evo with the triple plate

[Pugme]

slightly off topic, am i riht in thinking to launch the auto, put in drive, foot on brake, floor it, ping the brake when at 5k?

[aboo]

With the auto foot on brake and bring the revs up. I only get up to about 3500rpm before the car start moving. You could probably get more with better brakes then release the brake pedal.

[Subaru ETA]

slightly off topic, am i riht in thinking to launch the auto, put in drive, foot on brake, floor it, ping the brake when at 5k?

If it will get to 5k! I would have thought the torque converter stall limit would have been lower then that? Havent driven many auto vr4s so haven't really tried.

As for manuals - I found 5500rpm was good. Anymore and it would turn my bridgestones into smoke.

I had a heavy duty exedy clutch and had no problems

[CANDEE]

With an auto, you should let the car settle, left foot on the brake hard(ie to the floor) then hit the throttle, you should be able to get up to 3-3.5k without the car moving, and you can use the handbrake to help keep the car sitting there.

To get the most out of it, wait for the back of the car to lift up as well... Then let the brake go...