315 to 342
Racer
Joined: May 2009
Posts: 399
Likes: 3
From: jacksonville fla
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
Yes it is worth it. I did it on my vert. You can sell your 3:15s to those who have the 2:73s and you can pick up a used set of 3:42s from a Z06 car that has gone to 3:90s or 4:11s for about what you can sell your 3:15s for. Certainly worth it to change the stall at the same time as the labor is just about a hundred bucks more to do the stall while they have the drive train down to change the diff. I went with the Yank 3500(used from A&A). 
Racer
Joined: May 2009
Posts: 399
Likes: 3
From: jacksonville fla
Your 3.15s aren't whats holding your car back it's your stock converter that stalls at just 1300 RPM. I have had 3.15s and a stock converter in my car and it left a lot to be desired when it comes to performance. Do it the right way the first time swap converter and gears at the same time especially since you have bought your 3.42s already.
Last edited by mitchell c; Jun 26, 2009 at 08:36 AM.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
I did that exact upgrade (3.15 to 3.42) and am still very pleased. Granted, it is a small step, but took me exactly where my end goal was.
http://mikemercury.home.att.net/342.htm
I also agree that swapping the converter at the same time is a good idea as well. If you don't normally like higher stall converters - there is still a low price option:
http://forums.corvetteforum.com/c5-t...-da-floor.html
http://mikemercury.home.att.net/342.htm
I also agree that swapping the converter at the same time is a good idea as well. If you don't normally like higher stall converters - there is still a low price option:
http://forums.corvetteforum.com/c5-t...-da-floor.html
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Racer
Joined: May 2009
Posts: 399
Likes: 3
From: jacksonville fla
Before you decide make sure you will be satified with a converter that offers a small increase in performance. If you are expecting it to get rid of the dead spots in acceleration you get from a roll you will be disappointed. I had a PT2400 & 3.42s in my car and I still had dead spots when I punched it from a roll at certain speeds. If you aren't satisfied you will want go to a converter with more stall. If at some point you think you might want to go to a bigger cam. You definately will need a converter with more stall than this converter offers. Most importantly an SS3200 & 3.42s drives like stock on the street untill you nail it. It is true after market converters are expensive, however they are worth it with the extra performance they provide. They are much smaller and lighter 9.5 inches and only 30 lbs. Compared to 13 inches and 52 lbs. for the stock sized converters. Because of the lighter weigh your engine will rev faster.
Last edited by mitchell c; Jun 26, 2009 at 09:33 PM.
Thread Starter
Advanced
Joined: Jul 2008
Posts: 75
Likes: 0
From: Reno Nevada
Thanks for the comments Mitch!!! 
Read: http://forums.corvetteforum.com/c5-t...rag-times.html
it may help you understand what I'm trying to do and why.
Read: http://forums.corvetteforum.com/c5-t...rag-times.html
it may help you understand what I'm trying to do and why.
Last edited by RenoKajun; Jun 28, 2009 at 10:15 AM.
