what does dropping clutch to launch damage
Jan 24, 2008, 07:33 AM
#31
T-Case apart:
Ouch!!!!!
T-Case from an Evo IX waiting to go in...
I had posted the other day that I had thought my 6speed had blown on track at an HPDE @ Pocono. Turns out that it looks like it was my transfer case! When it was finally yanked apart, it was clear that the pinion and rings were completely destroyed. The front diff maybe could be saved... but that's for another day.
I was running factory trans fluids, flushed in March. Downpipe can be seen in the pics in the background is wrapped for heat shielding.
After going back this weekend to old pictures and event info, I've done 11 track days on the car, 2 drag passes (when I bought it back in '05)...
...and 600+ autocross runs. Damn. 50+ events, 40+ of them with two drivers.
Car has 21k on the odo. Exedy stg 1 clutch replaced at 17k miles. Running as far as power, just a conservative tune (~300whp) Car has coilovers on it, and runs 275/40/17 V710s on 17x9 wheels. -3.0* neg camber F, -1.2R, 1/8 toe out F, 1/8 out rear.
Broken so far: 1/2 dozen wheel studs, a few lug nuts, clutch, T-case.
On course. White Evo's may be the fastest, but silver is the workhorse
here are some pics of mine 
Drag racing + 5.5k clutch dumps + 47k miles/200+ drag launches = a blown t-case
My ACD portion of the T-case....everything looks good....
The other half of the transfer case....looking good...
The LSD....looks good.....but looks can be deceiving...
Here is the top off the LSD....hmm...metal shavings....
And the carnage begins...
Drag racing + 5.5k clutch dumps + 47k miles/200+ drag launches = a blown t-case
My ACD portion of the T-case....everything looks good....
The other half of the transfer case....looking good...
The LSD....looks good.....but looks can be deceiving...
Here is the top off the LSD....hmm...metal shavings....
And the carnage begins...
Now you are scaring me
Feb 5, 2008, 02:37 PM
#37
The biggest thing to remember is to not just dump the clutch. You do that, well, you probably shouldnt be driving an Evo or any other AWD car. You slip the clutch, you'll be fine. A clutch is cheaper than your drivetrain. You may burn it a little in pursuit of a good launch (thus shortening its life), but if you ever hope to have a good 60ft at the strip - its necessary.
Bottom line: Don't beat on your clutch if you can't afford to fix it.
Bottom line: Don't beat on your clutch if you can't afford to fix it.
Feb 6, 2008, 07:57 AM
#38
Mar 5, 2008, 10:03 PM
#40
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I agree... my buddy on sunday lauched his IX MR at the track for the first time at 5600rpm and dump it and only got a foot past the line and CRACK SNAP POP.... He could easily get it in gear but... it has a mean grind to all 7 gears. (1-6 plus R). Can't wait to see what it looks like...my advice... Easy does it
Mar 6, 2008, 08:11 AM
#41
I agree... my buddy on sunday lauched his IX MR at the track for the first time at 5600rpm and dump it and only got a foot past the line and CRACK SNAP POP.... He could easily get it in gear but... it has a mean grind to all 7 gears. (1-6 plus R). Can't wait to see what it looks like...my advice... Easy does it
didn't go anywhere after that. also i think that my clutch grabbed so hard that it just broke everything. i'm pretty sure my clutch is fine. but everything else i think is gone. 
Mar 21, 2008, 03:30 PM
#45
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I don't know the verdict but i know that, you shouldn't be using REDLINE in a stock evo T-case, You should be using Diqueen or dyqueen What ever the stock Fluid is for the mitsu t-case., Redline most likely causes the t-case to shred in millions of peices my .02cents But correct me if i'm wrong