Originally Posted by ViciousLSD

I actually got a new motor, 1kmi break in and tuned last week. It was stronger than my previous as tested during practice.then i got ratatat just at the 1st feathered launch of the 1st run. I thought it was the rear axle but its the motor :( a couple of guys were offering their GR86s but theyre on the.trailers already and not enough time. Anyway i got a "clunker" dbw with positrac and just trying not to be DFL.
I guess I'll join you next year @Dallas J

Originally Posted by ViciousLSD (Post 11972328)

@LV///R is the 2023 STU National champ! Congrats! All that hardwork finally paid off! It got busy at the Impound so I only caught half of your winning run. Cant qait for the video :)

Originally Posted by ViciousLSD

Hey gents. what is this sound? This came out just lightly launching the car. The shop where I got my new engine only had time for this test ... basically the sound goes away when the clutch is depressed (or other way around). I have a new Exedy 4-puck sprung. I've had one of those explode before but it never made noises. any guesses? FW bolt? pressure plate? I'm just hoping its outside the motor lol
https://www.youtube.com/shorts/YcwJYGWlkeo

Originally Posted by kyoo (Post 11972405)

i've got an annoying issue of 2nd gear that keeps popping out when in gear - only when the car is driven in anger, usually in an autocross/racing setting - no grinding or any other issues, and gear goes in and out fine

could this be a shifter bushing or something simple, or something more complicated?

it's a 6spd built by TRE, probably 9 years old

Originally Posted by ViciousLSD (Post 11972404)

They just drained the tranny oil today. During practice i was getting some hopping and spinning rear wheels. Nothing strange, never launched hard. I guess i'll bring my brand new tre trans

Originally Posted by ViciousLSD (Post 11972404)

Originally Posted by ViciousLSD (Post 11972404)

Originally Posted by LetsGetThisDone (Post 11972413)

That's definitely a broken gear tooth. Time to yank the trans.

Originally Posted by LV///R (Post 11972414)

Dear God :(

Originally Posted by CaptainSquirts (Post 11972423)

It took me like 4 years of launching at autocross at 340 to the wheels(dyno’d 12 years ago) for my first gear to break some teeth while in stop and go traffic. The trick for longevity is to toast the clutch when you launch 🤡.

Originally Posted by Dallas J (Post 11972425)

This is actually why I'm considering going back to a single disc clutch. Twin floater plate warping sucks and Id rather slip the clutch and build heat than destroy axles, rear diff, or trans