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-   -   F23 Transmission Shifting (https://www.cobaltss.net/forums/drivetrain-79/f23-transmission-shifting-259928/)

hhrfreek 08-31-2011 10:42 PM

F23 Transmission Shifting
 
Hey guys when I am shifting high rpms (7k+) getting into 3rd is a real pita:cussing:. The trans shifts notchy and slow at those rpms. I really have to push it hard as hell to get into gear at the high rpm range. Is that normal for everyone else? If I shift at around 5k rpms it goes into gear as fast as I can throw it. I recently changed my trans fluid with Royal Purple and that made overall shifting smoother, but I didn't notice anything at 7k. Other fluids to try? I am going to get the TWM short throw in a few weeks. Will that help at all? Thanks.

Chevycobaltss3 08-31-2011 10:47 PM

look at the roll pin and also think about tranny internalls.

hhrfreek 08-31-2011 11:13 PM

Roll pin is solid, no play.

jmarks 09-01-2011 05:23 AM

F23s dont like to shift over 7k. Hahn always had problems with it and I have problems with it on my cavalier. You have to wait for the rpms to drop a little more then try and shift. Sounds like a pita but play around with it and it can be done. I still trust a f23 over my f35...

hhrfreek 09-01-2011 09:40 AM


Originally Posted by jmarks (Post 6021274)
F23s dont like to shift over 7k. Hahn always had problems with it and I have problems with it on my cavalier. You have to wait for the rpms to drop a little more then try and shift. Sounds like a pita but play around with it and it can be done. I still trust a f23 over my f35...

Yeah thats the problem :lol: My buddy was making fun of me for shifting so damn slow.

Are there upgraded parts/new parts that could aid in faster high rpm shifting? I am building my motor in November and wouldn't mind doing the trans since the car will be down for a week. I had it apart for an LSD install already, but didn't get into the internals. Tools for the F23 are dirt cheap.

StevoElSupremo 09-01-2011 11:44 AM

Seven thousand RPM?!?! wtf??? I dont ever even think I've hit Redline before lol, I'd be afraid to hurt my car at that band...

hhrfreek 09-01-2011 12:35 PM


Originally Posted by StevoElSupremo (Post 6021745)
Seven thousand RPM?!?! wtf??? I dont ever even think I've hit Redline before lol, I'd be afraid to hurt my car at that band...

I bumped the limiter to 7200 after I installed cams and springs. I hit 7200 a lot. The 2.4l solstice has the limiter at 7200rpm stock, but that trans shifts fast/smooth at those rpms(I just test drove one). My engine has handled it no problem for 10k miles and its boosted. I would like to do 7500rpm, but I need to know the trans is going to be able to operate well at that range.

rcarr0327 09-28-2011 10:38 PM

im looking to put good fluid in my trans too. im boosted and think i need some better stuff for my trans. also is there anything to do to upgrade and support my trans? I dont a lot about transmissions :/ thanks guys

JL-KA 09-28-2011 10:50 PM

I've never been that high but I don't have a problem at 6500. Where do you empty and fill these transmissions btw? I need to do that soon.

rcarr0327 09-29-2011 08:33 AM

^^ ill take a look at my Hayne's manual today when i get home. someone may answer before me though :P

Gelladuga69 09-29-2011 10:38 PM


Originally Posted by JL-KA (Post 6073133)
I've never been that high but I don't have a problem at 6500. Where do you empty and fill these transmissions btw? I need to do that soon.

2 plugs. One for fill and empty. There's a how to on here.

06SS ALL DAY 09-30-2011 04:34 AM

maybe your tob is on its way out? i wouldnt force it into gear as u said in post #1, your just further damaging sync's. but yea t.o.b. is my .02 cents

sfwg 09-30-2011 06:34 AM


Originally Posted by 06SS ALL DAY (Post 6075661)
maybe your tob is on its way out? i wouldnt force it into gear as u said in post #1, your just further damaging sync's. but yea t.o.b. is my .02 cents

x2 had the same problems as original poster but was shifting at 6500rmp tob eventually went out taking my clutch with it so change ur tob and while ur in there mine as well change ur clutch spec stg 3 is awesome


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