I have a 98 vert f55 with a six speed manual,

I replaced the clutch recently with one rated at about 550 hp and torque in anticipation of a future Supercharger upgrade. For now the car is at nearly stock HP.

I broke the lutch in properly, did not go over 3000 rpm for 400 miles.

it was occasionally a little difficult getting into first gear at a stop light.

yesterday I put an MGW short through shifter in, and after a very little bit of hard driving in short bursts, it is not slipping out of first and second gear periodicly.

any advice or recomendations as to what to do or look for?

I did not change the clutch slave and don't onow about the tranny fluid but will change it tommorow just in case

any advise would be a big help, I don't want to just throw money at it in a hit or miss way.

thanks in advance



BTW... the MGW shifter is great besides the new challenge....could be an op to put an upgraded tranny in it though...does anyone know what gear ratio came stock with the 98 vert six speed with selective ride control?

 

Not that it affects your clutch, but F55 (magnetic selective ride control) wasn't available until 2003.

 

Do you mean it IS slipping out of gear?

Why in the world would you go to all that labor...and not replace the slave??....and not check the tranny fluid level?

 

hmmm... it has the selective ride control, three settings, I thought that was f55

Ima bit of a noob though

 

am a noob to this :-(

however, the clutch pedal seems to have good even tension throughout the movement and seems to grip good, has a decent amount of clutch chatter though

as an aside, I did replace the flywheel so I wasn't totally jacktarded about it...just partially jacktarded :-\

and yes, I meant that it IS slipping out of gear, and is sometimes impossible to get into first gear, until I move the car a bit in second, it goes into gear fine when its not started, but at a light sometimes it wont go in, sometimes it goes in with difficulty, and sometimes its smooth as butter...seems to be getting worse.

By way of additional information, my baby has 115,000 miles on her.

thanks in advance guys.

 

You installed a clutch with greater clamping force than stock and you kept the orinigal slave cylinder with 115K miles. What possesed you to take that course of action? Start your troubleshooting by making sure your new shifter is installed and adjusted correctly. If this does not address your problem, then you may want to consider replacing the slave cylinder. The final drive ratio on your car is 3.42.

 

As I said, it doesn't affect your issue, but the earlier version you have is F45. (RTD)( for real time dampening )

 

as to the first part, the answer is simple, ignorance.

I also ignorantly took it to the shop I've been going to for years and had them put the clutch in and they never said anything to me about the slave... from now I will only take it to Josh at West Coast Corvettes or someplace specializing in corvettes nearby.

also, is there a trick to adjusting the shifter?

I know the box can be moved forward and back in the mounting wholes but The MGW doesn't come with the L shaped pilot guide. I made sure to align the notch on the horizontal shaft properly in it's mouning hole, and had everything in the Neutral position.....I will check to see it I got the box mounted in exactly the same position it was in with the stock shifter in it....thanks


I think that might solve the slipping out of 1st issue if the box is mounted too far forward, but it was often hard to get into 1st gear and now sometimes it just plain won't go.

am gunna change the tranny fluid today and adjust the shifter box, will update.... I heard that 98s should not use synthetic fluid becuase it can damage the paper stops in the tranny, is that true, or a vette myth like the frame distorting if you lift it without the doors open?

thanks again guys, I'm a noob but I'm paying attention and learn fast ;-)

 

thanks for clarifying brother

 

I don't know about adjusting the MGW, that is a question for the seller or the shifter manufacturer. The correct fluid for your transmission would be any quality ATF (Chevron, Mobil, Shell and many others) with the DEXRON III designation. Stay away from the gucci oil blenders, their claims are mostly marketing BS and the prices are very high.