I dont know if its normal but it did happen with mine and I think I know why it was happening and thats why I explained what I did. I havent had a lockout since I quit banging 5th and 6th gears.

I also raised my redline to 9450 since I have a built head and to get more mph in 4th gear. I think mine tops out at around 126 mph in 4th now to where before at 9000 redline it topped out around 118 mph.

 

ok, says for cars that require a lighter viscosity? thats ok?

 

When I called and talked to an Amsoil tech directly over the phone about it, I was looking for their thicker severe gear oil for my tranny and he explained that I wouldnt be able to shift gears with that thick of oil. He said the MTFQT was what was recommended for the S's tranny. I trust what the tech told me and I believe the OEM oil is 5w30 anyway. This oil is just synthetic and a lot better quality of oil that can help with gear shock and synchro wear.

 

Cool, thanks again brotha! and is what happened to me kinda sorta normal for us boosted guys?

 

Yes, thats it and I also listed a link before I saw you had posted this.

 

I'm not too sure if its normal for high hp boosted S's. I just know it happened to me also. I made a thread a while back when I first had it happen to me but never really got an answer on it. I just basically kinda figured out what was causing the problem and that was banging 5th and 6th gears. Since I stopped that, it hasnt happened again. I'd like to know if more people with 550+ whp have also experienced the problem or not. Its definitely weird and I have no clue as to what is actually causing the lockout. I'm just assuming its the over heated stress put onto the single synchro's when we are trying to shift very quickly with a ton of power. At first, I thought I bent a shift fork or something but I dont slam gears hard, I just shift very smooth and very quickly. When the gears came back, I assumed the problem was just the single synchro's and shifting too fast with that much power.

I took a buddy out in his 490 whp boosted S a couple weeks to show hime how to race it and shift very fast and smooth without banging gears too hard to the point of hurting things. He about shit himself when he realized how much faster his car was with me driving it. He is a pretty slow shifter though. We raced a 475 whp civic and he kept losing by about 3 cars and I said, let me drive it for you and I guarantee it wont lose. Well, we raced again with me driving and i pulled the civic by about 2 cars. He was so stoked and flipping out. I'm trying to teach him how to drive the gears without ruining things but still win races and be fast.

 

cool, thanks for the response

 

check tranny fluid

 

This has happened on stock s2k's with damaged synchros. The 5th and 6th synchros are 'connected' and when you scratch 6th, it can affect 5th. It the old issue of skip shifting 1st to 2nd and 3rd, then going straight to 6th. The reason you were locked out of 5th was probably because the cones were damaged and something got stuck in the collar, preventing you from entering the gear. After a bit of driving and getting into 6th you dislodged whatever was in the 5th gear collar and were then able to mesh with the gear. No doubt this was power related, so you might want to go a bit easier on the shifting, ie trying to not let the rev drop too much in-between shifts, double clutching and not skip shift. This of course doesn't include any remedies from too much power. Good luck joey! You might want to change the fluid as well and see if there are any bits of brass.

 

Sounds like Jon hit it on the nose.

Def change the trans fluid and also I would use the amsoil synchromesh or GM synchromesh friction modified. Stuff works good however I dont think it will fix your trans.

Just take it easy on her unless you dont mind forking out 1k for a new trans.