slvr993

I have a '95 993. LW Fly wheel, Steve W chip. This car is 80% track/DE - 20% street. I really would like a better gear spacing and especially lower ratio 3-5. I've done the search, but I'm looking for input from those who have done it. Whats the best bang for the money

1) Find a Eoru box and refresh it. Assuming all thr actual gears are good.
2) Build up my box with new 3-5 and make current 5 my new 6
3) If answer 2 then any input on best ratios (/21 /31/32 etc) for my intended use.

I now it's expensive any way you go, interrested in your thoughts.

Thanks

Jeff

Bill Verburg

best of course and most expensive is a factory /30 or /31
RoW /21 isn't far behind.

JMHO but the 5 to 6 option is too short, for mostly track use the factory nailed it w/ /30

in the other post you can see what some options are again Jmo but /30, /31 and Lelands are where you want to be.

slvr993

Thanks, I didn't even see ac993's post. On my way to the dark side. Whats a good price on a used /21

Jeff

DJF1

Now kind of difficult to say, but in 2003 I bought a /21 for 3500 Euros from Harald who used to frequent RL in Germany. Sold my /20 for $3000 so the mod cost was very affordable. Back then actually it cost me nada because the Euro was low...It makes a HUGE difference indeed.

Steve Weiner-Rennsport Systems

FWIW,...Porsche will build new G50/31's to order as I just bought some,...

Further, those are nowhere close to $11K; the G50/32 is though.

ed devinney

So in which way are they nowhere close - nowhere near that cheap or nowhere near that expensive ?

Bill Verburg

Hre is a snippet of a private message from last fall
"I had a /32 gearbox bought on the morning of last Thursday.
Thursday afternoon, my dealer called to inform me that their distributor(in Atlanta) had called to confirm the order. This was the confusion as explained to me: In the PET, Porsche normally list consecutive order by - in this case - alphabetical order. That is, NX=/31; PX=/32; QX=/33 (there is no 'O').
However, it was found out that the PX=/33 and the QX=/32.
With that, the /32 cost(with core) jumped to $12612. An increase of ~$3200. But always a silver lining. With this fact, I can wait for a factory /31 and sell my core or regear it for other means. "

and is right in line w/ the pricing i got from Porsche, the /31 being somewhat less expensive and all requiring a like kind exchange, if you want a /31 or /32 you need one to trade in or the price goes up even more. In addition the prices have risen at least %0% since I first priced one a year and a half ago.

Bill Verburg

I guess my memory isn't as good as it once once

here are the quotes I got in 1/06 on factory rebuilt and warranted
/31 $5756.46 + like trans(additional for /20core) + shipping
/32 $9855.55 + like trans(additional for /20 core) + shipping

Steve Weiner-Rennsport Systems

Bill:

Prices are certainly gone up from that, but IMHO, its still a bargain compared to rebuilding/regearing a /21 right now.

KOAN

Steve,

Just to add a little more info to the discussion. The gear set that you sent me for my tranny re-build has completely changed my driving experience. It was expensive, but I don't think I could have increased the torque availability in a more cost effective way. I couldn't find a euro trans, and those that I had heard might be around were of unknown quality.
I am shifting quite a bit more, but am smiling quite a bit more too. I picked up about 5 mph at the end of the back straight of Watkins Glen, and am faster almost everywhere else as well. The gears you picked out are just what I was looking for.

Thanks again!

clubsport1

Bill, you mention in a couple of posts that the 30/31 is the box to go for.....
I previously had a 31....now have 32.....the spacing between 4-5-6th is an improvement in my experience....when changing from 5th to 6th with the 31, the gap was too wide and cat would accelerate at a slower rate.....this is not the case with he 32.
It's all down to personal taste, just wondered why you favoured the 30/31 over the 32?

Mike J

What is the market price for a used /20 these days, i.e. what would the cash outlay be for moving from a /20 to a /32 (assumine the install is free)?

Cheers,

Mike

Jean

You sure have an accurate butt. You have a 10 RPM drop difference between those two gearboxes when shifting from 5th to 6th, and a 0.6% difference in gearing, All the other gears 1-4th have the same ratios in both. So I am not sure you know what you are saying?

clubsport1

I was perhaps a little less eloquent than I might have been.

From personal experience of both 31 & 32 boxes....On a standard 300bhp (296 on rolling road) RS with 31 box, I was always slightly disappointed with the way the car seemed to hit an acceleration wall on the upchange from 5th to 6th, when changing up at say 6500rpm......
I haven't noted how much the revs fall in comparison on the 32 box for this upchange, but the 5th to 6th upchange doesn't appear to halt onward progress in quite the same way.

There may indeed be a small % change in the gearing, but Porsche obviously amended the ratios for a reason and it is certainly noticeable to me when driving both cars.
I was just intrigued as to what others thought as personally I find the 32 box better suited to around 300bhp than the 31, particularly on track.

Jean

There is no (or hardly any) difference in gearing, certainly nothing that anyone could ever feel. I hope you did not pay the CS premium to get better ratios.

Here are the ratios and RPM drops,