Me 2 
Before/After on a Gear change C5
Before/After on a Gear change C5 Hey,
Just wondering if anyone has done a before and after on just a gear change with a vette. Specifically a 3.42 to 3.90. I'm guessing about 5rwhp difference but just want to see if anyone has actually done it.
Just wondering if anyone has done a before and after on just a gear change with a vette. Specifically a 3.42 to 3.90. I'm guessing about 5rwhp difference but just want to see if anyone has actually done it.
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Joined: Jun 2005
Posts: 1,537
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From: Was New Orleans, but swam to Baton Rouge
Thanks, Exactly what I was looking for!
I have seen that also, we took one car from a 2.73 to a 3.73 and it picked up 4-5rwhp It was actually done on the same day too.
I have seen that also, we took one car from a 2.73 to a 3.73 and it picked up 4-5rwhp It was actually done on the same day too.
ROFL, best post i have seen today....
Interesting aside for a Vette. DTE Powertrain requires the use of 75W-140 gear oil. Redline told me that the loss in going from 75W-90 to 75W-140 in a chassis dyno would be 3%-4%. Thats a lot if you use 400 hp as a baseline. I have no proof but those are the numbers they gave me. Phil at DTE might have more information, but I guess my message is that the gear oil requirements on a DTE Vette may play a role as well.
