John Shephard tranny test results are in! Options

[awd4kicks]

Well I now know that the Shepard tranny will hold up to the following:

7 VHT Full-on track launches
25-40 Street launches
Full drag pulls into fifth gear once
and about....oh say 4-6 months of daily driving.
And not one launch more!

Yep, I told you guys pulling the tranny becomes second nature.

I went over to Williams house tonight in Normal to check out his intercooler. Nice guy!

We took a ride in the FWD and he let me witness it's tire churning power. It's a hell of a car for the miles. Then we took my Talon out for some AWD action. Drove out to a nice straight barren road. I laid into it fairly hard and did some tire chirping on the launch and let her eat well into forth. We turned around for another go before heading home, but started to hear a funny sound. I rolled to a stop and prepaired to launch . This time I was intent on smoking the tires. The revs go up, up, up and as they swing by 6500RPM I let her out quick the car lurches and WHAM! Falls right on it's face as the RPM's are still in a climbing mode. Whoops!

Now, no first, and in second the tranny makes a horrible clunking sound. Oh well...That's what half of racing is about. Repairs. So I'll be flat bedding the car to Washburn tomorrow and yanking the tranny out for a look see. Thinking maybe I broke a few teeth off of my beloved GVR4 first gear.

Updates soon.

Marcus

[awd4kicks]

Well, we got the transmission apart the other day. It was definitely first gear that took the beating! My beloved GVR4 gear has bit the dust..hard. I've posted a couple pictures under my members area in my misc. folder.

We went ahead and inspected the center dif for kicks. It's all in one piece but makes a little noise and the carrier is galded. I would assume from the high RPM launches.

Anyway, I talked to a few people like John Shephard and Mark at BMtranny.com. Mark, informed me that they have tried and do not use the GVR4 first gear in Jeff hills Turbo Trix DSM anymore. They found it would break too often because of the extra leverage. He also claimed that Jeff's 60ft. times are no different with or with out the GVR4 first gear.

So I'm going to go back to the stock DSM gear in hopes that it will hold up to the abusive launches a little longer than five months. However, I will probably purchase an EPROM ECU and get the TMO rev limiter mod done to keep from hitting the rev cut in first gear.

I may also do the four spider dif to keep from having to pull the transmission again in six months. Dang those things are pricey! Darryl, do you have any good deals cooking on those puppies?

Marcus