[stratt134]

I am building a street/strip 69 nova and I want to have a manual transmission. It is going to be behind a 383 with a blower, ~600TQ. I need something that will hold up and I don't know my options for this. Would it be worth it to have one built for racing at a shop? How much does that cost?

I think I want to go with a 4 speed with really high 1-2-3 gears. I don't plan on cruising much. Thanks for the input


Sean

[dh79]

How much do you want to spend? To make something last reliably behind 600 ft/lb torque it won't be cheap. The tremec tko 600 is rated at 600 ft/lbs. That might be cutting it a bit close though. If you want a really serious tranny that'll handle that power no problem, then you gotta look at jerico or g force. These transmissions are made to handle hardcore power for serious racing. These don't use normal syncros. Instead they use variations on a dog-ring syncro setup. This means really fast power shifting when racing but they're harder to drive on the street because you'll have to double clutch or rpm match. Basically, you shift them without the clutch.

Jerico

G force transmissions

[stratt134]

I was looking at Summit's website and they have a Richmond T-10 4 speed with the following gears:

1st 3.42
2nd 2.28
3rd 1.46
4th 1.00


I like that combination of gears better than the normal 4 speed (2.88 1st, 1.90 2nd) they make. I like the 3.27 1st and 2.13 2nd on the Richmond 5 speed, but I don't want to pay the extra cash if I don't have to. Does anyone know how much power does the Richmond T-10 handle? My motor won't have a blower for a while....

Thanks
Sean

[56Maynard]

Richmond S- T 10 wont take it. The gear ratios you posted are lower gears not higher gears.

[302 Z28]

Lenco?

Vince

[65 Imp SS]

The lower the gears in the tranny the less torque it can take (something with torque multiplication). Just check richmonds web site at http://www.richmondgear.com/01pdfs/pages36-38.pdf they show what their tranny's are rated for. There are aftermarket muncie's with supercases with steel midplates and aftermarket Italian gears which are suppose to be far superior from the original's.

[Lonestar]

Originally Posted by stratt134

I was looking at Summit's website and they have a Richmond T-10 4 speed with the following gears:

1st 3.42
2nd 2.28
3rd 1.46
4th 1.00


I like that combination of gears better than the normal 4 speed (2.88 1st, 1.90 2nd) they make. I like the 3.27 1st and 2.13 2nd on the Richmond 5 speed, but I don't want to pay the extra cash if I don't have to. Does anyone know how much power does the Richmond T-10 handle? My motor won't have a blower for a while....

Thanks
Sean

If your trying to save a few bucks, forget it. You will need to buy a better one when you add the blower anyways so ou might as well invest in a Jericho right now.