Proper S2000 Launch technique.
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From: formerly versionJDM
Originally Posted by LegendaryHarry,Aug 25 2007, 04:06 PM
from further viewing in the video it looks like he's sorta slipping the clutch cause the car's moving a bit as hes reving it up.
or. was it because he was on a hill. haha
or. was it because he was on a hill. haha
there is a bit of a hill there.
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From: LaVergne, TN
Originally Posted by RED MX5,Aug 25 2007, 06:35 PM
Harry, there really is no single "proper" way to launch, and the "mixed opinions on what is proper technique" usually stem from this. If you are not running OEM tires, or if you have an AP2 with a CDV, or if you are on a high or low grip surface, you need to modify the launch, but to minimize driveline shock you want to be sure to always break the tires lose sharply, with a quick impact from the clutch. This breaks the tires stiction with minimal force duration and the cars seem to take it well. XViper and others (myself included) have done thousands of burnouts using this method witout any driveline or clutch failures. HOWEVER, it is important to be able to read the surface and judge the available traction. Even with OEM tires, some surfaces have too much grip for a 6k launch and failing to raise the launch speed is asking for a broken differential.
Anyway, the first rule of hard launches is to be sure that you can afford to replace anything you might break (so be careful).
Anyway, the first rule of hard launches is to be sure that you can afford to replace anything you might break (so be careful).
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From: Melbourne, Australia.
Originally Posted by RED MX5,Aug 26 2007, 12:35 PM
Harry, there really is no single "proper" way to launch, and the "mixed opinions on what is proper technique" usually stem from this. If you are not running OEM tires, or if you have an AP2 with a CDV, or if you are on a high or low grip surface, you need to modify the launch, but to minimize driveline shock you want to be sure to always break the tires lose sharply, with a quick impact from the clutch. This breaks the tires stiction with minimal force duration and the cars seem to take it well. XViper and others (myself included) have done thousands of burnouts using this method witout any driveline or clutch failures. HOWEVER, it is important to be able to read the surface and judge the available traction. Even with OEM tires, some surfaces have too much grip for a 6k launch and failing to raise the launch speed is asking for a broken differential.
Anyway, the first rule of hard launches is to be sure that you can afford to replace anything you might break (so be careful).
Anyway, the first rule of hard launches is to be sure that you can afford to replace anything you might break (so be careful).
Do you launch from a standstill or rolling?
Secondly if i have launched from a standstill and lets say it was easily an 8KRPM and just stepped right of the clutch, should i be smelling clutch?
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From: atlanta
you got to pay to play.
I rev up real quick to 6000 rpm then drop the clutch, spin the tires, transmission shock will be there, of course, but it wonjt be as bad as say launching with slicks.
you could get some Redline stage 3 transmission oil and diff oil to lessen the shocks.
There are always going to be shock on the drivetrain when launching hard and over time if you don't take care of the fluids on the tranny, it'll go dead.
I do slip it a bit before dropping it, but that's from my Evo lauching habbits...
I rev up real quick to 6000 rpm then drop the clutch, spin the tires, transmission shock will be there, of course, but it wonjt be as bad as say launching with slicks.
you could get some Redline stage 3 transmission oil and diff oil to lessen the shocks.
There are always going to be shock on the drivetrain when launching hard and over time if you don't take care of the fluids on the tranny, it'll go dead.
I do slip it a bit before dropping it, but that's from my Evo lauching habbits...
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From: Dry Branch
Originally Posted by brimstone,Aug 28 2007, 11:18 AM
So what about an AP2 with CDV, RED MX5?
How would you launch one?
How would you launch one?
I've been ignoring this thread beccause I didn't want to get wrapped up in another argument over how acceleration is produced, but we just got our broadband connection working again (it's been down for a couple weeks
) and your post was at the top of my activity list. 
Too bad it had to be a question I can't really answer. In addition to the CDV, the AP2 also has a heavier flywheel, and it would take some testing (aka. "playing around") to figure out the best way to launch the car. I'd be a little concerned that the CDV might slip too much and either fail to break the tires stiction and wear excessively, but for all I know that may be a non-issue. Have any of the AP2 owners done "numerous" burnouts the way Billman, XViper, et.al., have? LOL, I'd probably remove the CDV, but that doesn't necessarily mean that removing it is a good idea. I'd probably install a lighter flywheel too, and without the CDV and heavier flywheel I'd expect the AP2 to launch pretty much like the AP1.You really need to ask someone with more AP2 experience than I have.
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Originally Posted by RED MX5,Aug 25 2007, 06:35 PM
Anyway, the first rule of hard launches is to be sure that you can afford to replace anything you might break (so be careful).
although, i've been doing a lot of searches because i do want to launch my S. i have a MY01 with summer tires (good tread) and HD pressure plate & stock disc, and stock diff. it seems that if i were to try, i'd start with a 6k clutch drop, since that seems popular, but i know it'll take a few launches for me to familiarize myself with my tires and different roads.
my question is...if nothing in my drivetrain breaks completely, but suffers more wear, would i be able to tell from the diff and tranny fluid? ie. chucks & shavings