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Old Sep 8, 2023 | 10:52 AM
  #5626  
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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
Yikes that sucks. Hope fully that shop stands behind it.
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Old Sep 10, 2023 | 01:48 PM
  #5627  
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Originally Posted by ViciousLSD
@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

Thanks bud! My videos are up in the STU thread (finally).
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Old Sep 11, 2023 | 07:56 PM
  #5628  
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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
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Old Sep 11, 2023 | 09:41 PM
  #5629  
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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
They need to measure crankshaft thrust. If that's within spec (should be recorded on engine build sheets) they'll need to pull the trans.
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Old Sep 11, 2023 | 10:40 PM
  #5630  
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No matter what, sounds like you're pulling trans.
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Old Sep 12, 2023 | 08:17 AM
  #5631  
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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
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Old Sep 12, 2023 | 08:17 AM
  #5632  
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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
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Old Sep 12, 2023 | 08:34 AM
  #5633  
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Originally Posted by kyoo
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
Id guess bent shift fork or something up with the cable or bushing not getting it fully in gear.
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Old Sep 12, 2023 | 10:26 AM
  #5634  
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Originally Posted by ViciousLSD
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
Holy, my condolences D:
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Old Sep 12, 2023 | 10:37 AM
  #5635  
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Originally Posted by ViciousLSD
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

That's definitely a broken gear tooth. Time to yank the trans.
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Old Sep 12, 2023 | 10:39 AM
  #5636  
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Originally Posted by ViciousLSD
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

Dear God
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Old Sep 12, 2023 | 10:54 AM
  #5637  
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Originally Posted by LetsGetThisDone
That's definitely a broken gear tooth. Time to yank the trans.
a big chunk. that rpm related sound is misleading. I'll deliver the backup trans this friday

Originally Posted by LV///R
Dear God
Again, I dont understand why you can do amazing launches and dont break stuff
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Old Sep 12, 2023 | 02:57 PM
  #5638  
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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 🤡.
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Old Sep 12, 2023 | 03:43 PM
  #5639  
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Originally Posted by CaptainSquirts
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 🤡.
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
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Old Sep 12, 2023 | 04:02 PM
  #5640  
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Originally Posted by Dallas J
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
I broke the front diff last year. I just have a 4-puck and never launched hard. This clutch actually slips and quite hard to use going up a trailer or backing up a raised driveway
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