Ok, so mt friend just had this tranny shop build him a 6 speed sequential shifting tranny for his rx7. It cost him $12,000. I called the shop and asked for a rough estimate on my pro for a 6 spd tranny like the rx7. He got all my tranny info and **** and gave me a rough estimate at $5500, and a 3 week turnaround. I think that'd be awesome to have that tranny built for my car. Is there anyone that has a sequential tranny, or even a 6 spd for their pro??
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Originally posted by MazdaRacer
you'll probably be the first....
IMHO, i'd spend the money on building the existing tranny Godzilla strong....and still have plenty of money left over for a killer clutch/PP/flywheel set up, and a nice night out on the town
how would u build your existing tranny godzilla strong?. Ive been stumped on this for awhile...Jon
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Kevin
see, you take godzilla.. eh, forget it do people actually make stronger internals ... gears and synchros or whatever that we can just slap into the transmission housing? if not, what would beefing up the transmission entail? stronger, more heat resistant metals or what? different gear ratios?
peace
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Originally posted by demoninvictus
see, you take godzilla.. eh, forget it do people actually make stronger internals ... gears and synchros or whatever that we can just slap into the transmission housing? if not, what would beefing up the transmission entail? stronger, more heat resistant metals or what? different gear ratios?
peace
alos there are 2 way to "cut" gears one is the elongated spocket srtaight toothed, one has more of a spiral almost drill like quality in the "teeth" i believe the "screw-like" gears are stronger... or smoother.... one of the 2When you turn your car on... does it return the favor?
Originally posted by goldstarYes, still have it. It was my attempt to immortalize you in verse.
A Protege driver named Brock
Once said 7 seconds he'd clock.
So his engine he goosed
With much too much boost,
And drove a rod through his block.
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Originally posted by D323
that or get one of those Auto racing trannys that are supposed to be bullet proofWhen you turn your car on... does it return the favor?
Originally posted by goldstarYes, still have it. It was my attempt to immortalize you in verse.
A Protege driver named Brock
Once said 7 seconds he'd clock.
So his engine he goosed
With much too much boost,
And drove a rod through his block.
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I believe the "stronger" he was referring to is the case and not the internals.Ryan The middle child is always ignored
BP powered 97LX Touring Edition
Vibrant strut tower brace, KVR front brake pads, Tungsram Megalicht H4 headlight bulbs, Phillips Halogen H3 foglight bulbs.... 91 GT rims w/ 195 60 14 Yokohomo Mirada GTX sport
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this has probably been mostly covered many times before, but in case it hasn't.....
there are a few weak points but the gears break mainly because the shafts move apart when the case flexes - i can't replace the case but.....
if you want to toughen up your g series box, have gears 2-4 (or as many as you can afford )and the input shaft shot-peened and cryo'd if its available. Next, let me paraphrase a local genious who goes by the name of GTXWGN....
In auckland I figured out a way to fix the gearbox to stop it blowing...
Again it is correct that the gears blow because the shafts move apart a little bit which strips the tips of the teeth off then the rest of the gear..
the problem was the holes in the outer casing for the bearing shells wears out because the outside shells of the bearings turn inside the case when they should be solid and not turn or move, i even locktighted them in and they still turned, when they turn they wear out the holes for them in the case making a bit of slop. this is where all the movement came from...
Also the case itself flexes even without the bearing problem just from being thin alloy..
to make it stop blowing we did the following idea
machined out 3-4mm of alloy from the inside of the casing, then made a solid steel 4mm plate with the bearing holes in it and bolted this to the inside of the case.... now the bearings are a perfectly tight fit and the 2 bearing sheels cannot move apart at all because theres a steel plate holding them together, and its really tight so they dont turn...also shot peened the gears.....
no problems since that was done
no need to spend many $000's.
go you good thing!
Of course if you want to go crazy, get straight cut gears, personally I can't afford a new gearset so I'm gonna try Ross's idea first....Last edited by Stefan; 09-09-2003, 05:00 AM.
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Ross doesn't sell the plates as far as I know but I'll ask him who did the cutting and perhaps I can chase them up......
He's since moved to Australia but he is currently building another bpt powered machine
Shot Peening is an engineering function so you'd have to ask around to see which engineering shops do it and get someone who does it to "aerospace" specifications if posssible.
I'll get back to you if I can find out more about the bearing plate although I'm sure if you had your gearbox out you or someone you know could probably plan the operation anyway.
go here to see some great pictures of the bearing section in question -
G Series Box - Look for the two BIG holes they are your main problem...
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Straight cut gears are too loud and not that strong.Ryan The middle child is always ignored
BP powered 97LX Touring Edition
Vibrant strut tower brace, KVR front brake pads, Tungsram Megalicht H4 headlight bulbs, Phillips Halogen H3 foglight bulbs.... 91 GT rims w/ 195 60 14 Yokohomo Mirada GTX sport
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