are the T2 trans really stronger? pretty sure I want something with an overdrive. what about a TKO Hurst Driveline Conversions TCET4618 Hurst Driveline TKO 500/600 5-Speed Transmissions

 

Trailer park post.

 

The T2 trans is commonly drag raced over 500whp. TKOs are tough as nails, but expensive. The Mustang guys abuse the **** out of them.

If I were building a no-holds-barred Miata track day/ autocross car (and didn't want to go broke), I think I'd build a Tex T101/ Jericho/ etc NASCAR trans from parts on ebay with a 1:1 top gear and a REALLY short first gear, and put a 3.08 geared Ford 8.8 in the back. You'd never break it, and I think it's the cheapest way into a bulletproof drive train. The ex NASCAR parts can be had for next to nothing if you're willing to buy everything piecemeal and put the trans together yourself, and an 8.8 from an IRS Mustang Cobra or possibly a 4.6L Thunderbird wouldn't set you back too much either.

If you wanted to street drive it at all a T2 trans is probably your best bet, but if you don't break transmissions I'd be afraid of stripping teeth off the ring gear in the toy rear end, instead.

 

Roll tide.

 

baby != bathwater

 

Hook em gays!

 

A certain SSM RX7 got a Jericho box after mulching transmissions for several years. If you are going to upgrade, do it so you never worry about it again. I just need to find that money tree. The XP car really needs a used roundy roundy transmission.

 

lol at guys saying "just buy more trannies"... what about the financial losses by paying for track time but pissing it away because you had to do a tranny swap at the track - if you can. You'll lose a good day especially if you're instructing as you're obligated to coach and wrench on your car when you can. It's a big headache for one, second is you get tired of doing it where it makes your time NOT having to swap out trannies even more valuable.

At a projected 400+ rwhp, and reading Bundys problems... I really am leaning toward saving my 6spd for the DD and doing something better for the track car... so I'm watching you Bob, I'm watching you

 

LOL this one was one I bought at Laguna Seca earlier this year and swapped in during the middle of the track day and managed to run sessions 1, 2, part of 3 and 5. it was really expensive to buy a Mazdaspeed tranny at the track and my wife took my credit card away after that one and gave me a card with a lower limit.

 

Anybody actually buy parts and rebuild a 6 speed? I got two of them with broken 4th gears and another one that has some sort of bearing issue.

 

Why not look at a shop that makes hardened gears and have them make you new set of gears?

 

Yeah, the guy with the Spec Miata shop in Salinas made a bundle that day. I think he sold 3 transmissions, 2 6-speeds and a 5-speed.

How many track days did you get on the MSM box? Were they all at the same reduced boost level? Breaking it at 280 ft-lbs has me a bit worried, I'm not far below that even though I've got a teeny weeny turbo.

--Ian

 

Team up with TSE and design a new gear set that might be available to the public in 2016 or so

 

They use the same guts as the RX8 transmission with a slightly different case. ISC Racing has rebuilt a bunch of them and claims it isn't a very reliable transmission in racing for the RX8s. But he can definitely rebuild them.

 

Why doesn't 949 or TSE sell gear sets? There's obviously a need for them. Somebody page Emilio.

 

Can someone not cryo-treat the gears?

 

TNTUBA cryo treated, shot peened, and possibly WPC treated the gearset in his five speed, and it made it most of an autocross season. He's doing a Jericho over the winter.

 

At Bundy's power levels I would not be wasting my time with half measures. He just needs a beefier solution. Guys like Genesplicer and Savington are facing the same problem. If they all get together and work on a solution the cost of development can be shared.

 

Is this not a good idea?

 

Jesus Bob, sorry to hear about that. I wish I had known/been there. I have a 6 speed sitting in my garage waiting for me to get my act together and I'm about 7 minutes from MRLS.

There is a Spec Miata shop in Salinas? O.o I thought Hartzel was the only one playing with these things in Monterey County. I've called Hartzel twice about work and he managed to shoo me away both times like he didn't want my business.

Sorry for the derail, but seriously guys, if you break **** at MRLS and you need tools/parts/extra hands with something, PM me and I'll get you my cell number if I'm around.