hybridracer

When im shifting from first to second at high rpms it makes this scratching sound, it makes that sound like you trying to throw the car into reverse in like 3rd gear. Anyone know why it does this? And it only does it going from first to second. Oh by the way its a 1990 GTU. Thanks for any help

jmseven

Syncros.....USE MTL

rico05

Or Royal Purple 70w to 90w synthetic gear oil.

hybridracer

Thanks, rico05 you have helped me sooooooooo dang much since i first started coming here.

DCmina

hey i was wondering where do you put this stuff into?
Sorry for being so stupid!

rico05

Tranny. Redline MT-90 is good. DO NOT USE Redline MTL!!!!!!!! Is is too thin, and can cause big time damage!!!! Use only Redline MT-90, or Royal Purple 75w to 90w. I run Royal Purple 85W, and my synchros are like butter. No more grinds, and beautiful shifter feel!!

RETed

The 1st to 2nd gear ratios are really too wide apart to do ultra-quick shifts at redline.&nbsp I tend to short-shift under 6.5kRPM or wait a split-second just to let the synchros do their work...



-Ted

rico05

Good call. When I shift at or above 8k, I usually wait a 1 count before I complete the shift.