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Old 01-30-2006, 09:23 PM   #1 (permalink)
 
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stock none mr evo9 doing mid 13s on track

there was a dude at the track doing mid 13s on a fully stock evo9. all the guy had done was removed the launch controller and was dropping it 6500. will u get a better launch if u just drop the clutch at 6500 or slip it at 4500 - 5000?
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Old 02-04-2006, 09:37 PM   #2 (permalink)
 
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Quote:
Originally Posted by hyestein
there was a dude at the track doing mid 13s on a fully stock evo9. all the guy had done was removed the launch controller and was dropping it 6500. will u get a better launch if u just drop the clutch at 6500 or slip it at 4500 - 5000?
Mid-13s would be considered slow for a 9. If he was dumping his clutch at 6500, then he was making a big mistake. I'm not sure how he'd know how to disconnect the 5k limiter yet not know how to launch properly - that's a strange combination, since knowing about that switch usually means the person knows what they're doing. Anyway, stock 03s with about 40 less whp could do mid-to-low 13s, so a IX doing mid-13s is pretty weak unless it was at really high altitude or something.

No, you won't ever get a better launch if you drop the clutch. There is a clutch restrictor and a rubber clutch line, both of which causes engagement delays. You have to slip it a little out of the hole, and I prefer doing it around 5500rpm, which requires removal of the launch limiter. You can use the 5k limiter as a 2-step launch control, but it takes some practice.

PS. MRs aren't any faster, so that's not relevant to the track times.





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Old 02-05-2006, 05:28 AM   #3 (permalink)
 
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if you don't want to kill your car don't drop it! you have no idea the stress what you do with a whole car... 5000 for the stock car ,is enough to start roll then depend on you ,how you shift and WHEN! probably because the car farly new ,the guy need to get use to it. Use the clutch more and never over rev it!

Last edited by robert martai; 02-05-2006 at 10:09 AM.
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Old 02-05-2006, 10:25 PM   #4 (permalink)
 
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What do you mean a 2-step launch control? I have no idea what that is.

BTW thanx for all the information warrtalon, i really appreciate it
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Old 02-06-2006, 10:21 PM   #5 (permalink)
 
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Originally Posted by hyestein
What do you mean a 2-step launch control? I have no idea what that is.

BTW thanx for all the information warrtalon, i really appreciate it
You don't know what it is? You said the guy disconnected it in your first sentence. If you don't know what launch control is, then what were you referring to? This is your quote:
"all the guy had done was removed the launch controller and was dropping it 6500"

There is a built-in 2-step launch control at 5k rpm. You said he disconnected it so he could launch at 6500, which is too high.





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Old 02-08-2006, 06:07 PM   #6 (permalink)
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What does a Stock IX Trap at 100% Stock at Sea Level?
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Old 02-08-2006, 10:53 PM   #7 (permalink)
 
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Originally Posted by umiami80
What does a Stock IX Trap at 100% Stock at Sea Level?
106-107mph.





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Old 02-09-2006, 09:41 AM   #8 (permalink)
 
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ahhh, i didnt know that the 2 step launch controller was refering to the rev limiter. I just call it a rev limiter. And the guy running mid-13 was not at sea level. It was at 3000ft above, at the LACR. So mid-13s just by dropping the clutch at this altitude isnt bad at all, is it?
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Old 02-09-2006, 05:50 PM   #9 (permalink)
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You dont want to drop the clucth, or you'll be getting a news clutch VERY soon or picking up driveline parts off the track. You ALSO don't want to Slip it long to avoid shock to the driveline as you will destroy your clutch and then maybe break traction and lose 60 foot times.


What to do is kinda vague in description but what is known as a VERY fast slip. Basically let it out some until the car starts moving and as soon as the car starts to move foward THEN dump the rest out so that you are not shocking the Driveline as you are now moving. This netted me Sub 1.80 60 Foot times.
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Old 02-09-2006, 06:16 PM   #10 (permalink)
 
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guys did you know the more important differences between sea level and above or below the sea level, that is the pressure altitude? so it is verypossible in the hot summer, hazy sea level ,can be less optimal than the 3000 feet above the sea level? Because really is the pressure altitude and humidity is the main factor for the engine performance. so the cooler less humid air is better for the engine. and if you go higher altitude the air thinner ,but if is not humid like the sea level one ,won't make really any differences /because most likely colder also/.So better if you watch the Hg.
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