Bill Verburg

The issue w/ g50/20 is that only the very earliest allowed a change in 2 w/o changing the mainshaft, somwhere in mid '95 they eliminated even that flexibility when the went to fixed 1 & 2 on the mainshaft.

Only the motorsports boxes /30, /31, /32, /33 have 1 & 2 that are separate parts that can be freely swapped in/out.

the taller motorsports 1 is probably not the best for hilly stoplighted areas, and it does help to have a torquier 3.78 vs 3.6 but even w/ the 3.6 I found it to be fine for the 1 year that I used that setup.

Mark in Baltimore

Bill,

Sorry, but since the OP asked for pros and cons, the illegality of a short gearbox in PCA's stock class can't be overlooked, especially with a fair number of people who start the track process by DE'ing their street cars and then turning them into race cars, however foolish that may be. The cost to undo any changes to stay in compliance is very real. Of course, if the OP has absolutely no plans to track/club race his car, then, for him, the point is moot. However, I thought I should mention it because other readers might eventually use this archived thread as a basis for adding the modification.

Quadcammer

autobonrun

One of the main reason I went with my current C4S is that the PO regeared the car, added a LWF and RS clutch and did not charge me any more than market value for the car.

I love the way you can stay up in the torque curve as you quickly row through the gears.

I still have the stock gears stored in a vat of gear fluid in case someone would want them if I sold the car.

One quick question; I thought that both 1st and 2nd gear were machined on the shaft and only 3 though 6 was available for regearing. Is only 1st gear machined on?

Steve Weiner-Rennsport Systems

Most '95 993's have a removable 2nd gear. The '96-'98 993's have fixed 2nd gears that requires mainshaft replacement to lower it closer to 1st gear which is machined onto all the street transmissions.

grwoolf

For me, the gap between 1st and 2nd probably bothers me more than any other. I'm just talking street use, I can see that it wouldn't matter as much at the track and people might be happy with a re-gear starting with 3rd. How much does a re-gear of 2nd add to the price of the job since a new main shaft is needed? What would be an approx. total price to re-gear 2nd-6th on a 97 model?

The stock gearing of the 993 is probably the biggest complaint I have about the car (my first Porsche). Most of the german cars I had driven in the late 80's/early 90's (VW's,BMW's) were always geared so well to best use the power and torque available. I was suprised with the 993 having 6 gears that the ratios aren't closer. I'd gladly give a little top speed and gas mileage for tighter ratios, I just wish it wasn't so, so expensive.

TheOtherEric

LOL, I didn't realize I have no sporting sense at all. I agree with you that it's a nice mod. But that doesn't mean it's worth the $6k cost. Apparently you think it is, but most of us don't else we would have done it.

Steve Weiner-Rennsport Systems

New ones are in the $2K range but you may find a good used one from a '95 gearbox for less money.

Your observations about the stock 993 gearing is shared by the majority of the owners whom I've spoken with over the past 14 years,...... ) This is why I strongly recommend close-ratio gears before any engine modifications as its a FAR bigger bang-for-the-buck for improving acceleration as well as the fun factor.

Unfortunately, Porsche was required to comply with EPA & DOT laws about gas guzzlers so those extra-tall, wide ratio gears were necessary for maximum fuel economy during the EPA driving tests.

matt777

So if a guy has his '95 gearbox apart, say next winter, what would a new 2,3,4,5 gear and 1/2 syncro plus consumable parts cost? Just asking.

Cactus

And where would you have to go to get it done in the East?

trophy

Now thats a good question, how about if there were 2 '95 gearboxes apart next winter would there be a discount for 2 sets of parts? Also just asking!

race911

Having both a built engine and a regeared box like Steve built for the yellow car is obviously best. But if I had to choose one or the other, I'd go with the regeared box.

TX Silver

What about three? I'd rather have the 1-2 shift difference moved up between 5th & 6th.

Frank

Steve Weiner-Rennsport Systems

Hi Matt,

Porsche's price increases, being what they are, happen almost monthly so its really difficult to tell you what components will cost by the end of the year.

I would budget in the $6-9K range, depending on what LSD options you might choose. Talk to me in November and I'll have a more accurate picture of costs, but one really cannot pin that down until your transmission gets disassembled and inspected for wear.

autobonrun

Bill Verburg was kind enough to graph my regeared tranny. The ratios are just perfect, except 1-2. The graph really shows the benefit of regearing. Maybe one day I'll bite the bullet and do 1-2 as well. As it stands, the car is very quick.

http://forums.pelicanparts.com/showthread.php?t=333081