G50/31 gearbox enhancement
#16
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As my old chinese martial arts instructor would say "This one no cheap!". I would be curious to see what the cost is with the factory order, and how comparable is it to the $6K-$8K regearing costs? I just sent an email out to Jeff at Sunset, and will post the answer.
Sounds like I need to take a few transmission rebuilding classes and do another DIY...but in this case the parts are the majority of the costs, right?
What is the magic in these gearsets? Are they that hard to machine/manufacture do they are worth $600+ per gear?
Cheers,
Mike
Sounds like I need to take a few transmission rebuilding classes and do another DIY...but in this case the parts are the majority of the costs, right?
What is the magic in these gearsets? Are they that hard to machine/manufacture do they are worth $600+ per gear?
Cheers,
Mike
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I just bought the supposedly the last g50/31 on the shelf from Sunset. This doesn't mean that now they are NLA. It just means that if you order one it may be on backorder and take several months to get. The cost was approximately $8.8K + core charge and shipping. Expensive, but when you think about it, buying from Porsche is cheaper (and arguably better) than having your own box regeared.
- The g50/20s in our car are worth some decent $$$, as they are sought after not only by other Porsche owners, but Ultima and other kit car owners. This is a big deal as it really lowers the cost of the conversion.
- The g50/3x boxes come with a Porsche Motorsports LSD
- Porsche boxes come with a 2yr warranty
- Regearing my existing box and rebuilding my LSD (necessary for anyone with stock LSD) probably would have cost at least as much, if not more, as the Porsche box. And I've have no gearbox to sell and probably nowhere near as strong a warranty if something went wrong.
- Could care less about resale, but I'm with Mike J re: supercharger vs regear. Also, in CA in would be a PITA to smog a supercharged car.
I have driven regeared 993s and let me tell you, there's a big difference.
Cheers,
Joe
- The g50/20s in our car are worth some decent $$$, as they are sought after not only by other Porsche owners, but Ultima and other kit car owners. This is a big deal as it really lowers the cost of the conversion.
- The g50/3x boxes come with a Porsche Motorsports LSD
- Porsche boxes come with a 2yr warranty
- Regearing my existing box and rebuilding my LSD (necessary for anyone with stock LSD) probably would have cost at least as much, if not more, as the Porsche box. And I've have no gearbox to sell and probably nowhere near as strong a warranty if something went wrong.
- Could care less about resale, but I'm with Mike J re: supercharger vs regear. Also, in CA in would be a PITA to smog a supercharged car.
I have driven regeared 993s and let me tell you, there's a big difference.
Cheers,
Joe
#18
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8.8K? That's really not that bad when consider the cost to regear. OK, it's incredibly expensive but nothing for these cars is cheap. This way the tranny is fresh, geared properly, and probably a lot tougher.
Definitely on my want list (currently @ about $25K per car!).
Definitely on my want list (currently @ about $25K per car!).
#21
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Rennlister Herman Maier, who has done the re gear on his former car, gave me the same advice a few weeks ago, as set out in Joe's post, i.e. get the G50/31 from Porsche.
#22
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I've also been in supercharged 993s at track events, they too are very nice
#23
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As my old chinese martial arts instructor would say "This one no cheap!". I would be curious to see what the cost is with the factory order, and how comparable is it to the $6K-$8K regearing costs? I just sent an email out to Jeff at Sunset, and will post the answer.
Sounds like I need to take a few transmission rebuilding classes and do another DIY...but in this case the parts are the majority of the costs, right?
What is the magic in these gearsets? Are they that hard to machine/manufacture do they are worth $600+ per gear?
Cheers,
Mike
Sounds like I need to take a few transmission rebuilding classes and do another DIY...but in this case the parts are the majority of the costs, right?
What is the magic in these gearsets? Are they that hard to machine/manufacture do they are worth $600+ per gear?
Cheers,
Mike
1) mainshaft w/ separate 1 and 2 gear sets, /2x have either fixed 2 or fixed 1 & 2, the tall std 1 in the /3x is very nice for pit out
2) all /3x come w/ a Motosports 40/65 lsd which is much more robust than the lsd that is optional in /2x
3) steel syncros are use on some gears in /31 more in /32 or /30 which also add stronger shift forks a large additional cost in the /32 and 30 is all the steel syncros, 2nd alone is a $2k assembly
4) GT gears can also be used in place of Getrag parts, they are still going to run ~$1k a gear set.
#24
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So let's say the trans is $8800. How much for the RS clutch/LWF and all associated parts? Then labor if you can't do it yourself? Then what can you sell the stock trans for?
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I think the $8800 was on exchange. You pay for the new box PLUS core charge. Core refunded upon returning your existing box, assuming it's not junk.
If I were to guess, which is all I can do, I'd bet you'd be into it for $13Kish with RS clutch/LWF in the car. And that's only if the gearbox price hasn't shot up too much.
Anyone wanna donate to the "Tim Wants a New Box" fund?
If I were to guess, which is all I can do, I'd bet you'd be into it for $13Kish with RS clutch/LWF in the car. And that's only if the gearbox price hasn't shot up too much.
Anyone wanna donate to the "Tim Wants a New Box" fund?
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#28
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I have thought about the re gear a lot, and I think there are three main factors that bear on the decision:
Resale. Cost recovery is probably going to be nil.
The owner's net worth.
The level of enthusiasm of the owner.
For a high net worth owner, the $10,000 cost will have zero impact on his bottom line (for liquid assets). The challenge for those owners having lower net worths, where, say, the cost amounts to x percent of their bottom line, is to quantify the level of their enthusiasm in dollar terms.
Resale. Cost recovery is probably going to be nil.
The owner's net worth.
The level of enthusiasm of the owner.
For a high net worth owner, the $10,000 cost will have zero impact on his bottom line (for liquid assets). The challenge for those owners having lower net worths, where, say, the cost amounts to x percent of their bottom line, is to quantify the level of their enthusiasm in dollar terms.
$8800....WOW !!! For that money I can have my 996TT running 650-700hp.
But I do love the 993 still.
Rinty.....I'm with you on this one. I had to get a line of credit to pay my Rennlist Member ship !!!!! lol !
#29
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I added a /32 to my track car. It was about $15k to have it shipped from Germany, core charge, and the transmission itself. Labor to install was extra. I know it was worth the cost for my track car.
I had my 993's transmission re-geared years ago when it failed. Replacing the main shaft to a splined 1st only, changing 2-5 and moving the stock 5th to 6th (keeping the brass synchros and not going to more expensive steel) and adding the RS LWF and clutch was about $11k. It made the car a lot more fun. You will not recoup the cost when you sell the car.
I had my 993's transmission re-geared years ago when it failed. Replacing the main shaft to a splined 1st only, changing 2-5 and moving the stock 5th to 6th (keeping the brass synchros and not going to more expensive steel) and adding the RS LWF and clutch was about $11k. It made the car a lot more fun. You will not recoup the cost when you sell the car.
#30
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The /32 is more expensive than the /31 because it has more of the good stuff inside, more gears w/ steel syncros and steel shift forks. The steel synros are not only stronger but have a more radical angle to them making shifts more positive, it feels almost as if the gears are sucked into mesh
ratios are also somewhat lower & closer together in 5 & 6
ratios are also somewhat lower & closer together in 5 & 6