Converting to a mn6 from a mn12
I have a buddy w a c5zo6 w a 441 ci putting down around 580 to the wheels. He is looking to convert to a mn6 for road racing. What all is involved with converting to a mn6 from a mn12?
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Not a big deal. many guys take out the MN12 for an MN6 or have it rebuilt
RPM trans can do it. But use a .84 5th gear and a .75 or .6 for 6th gear Dog rings are nice too, no lift shift :D |
Originally Posted by fotoboy
(Post 1580626423)
I have a buddy w a c5zo6 w a 441 ci putting down around 580 to the wheels. He is looking to convert to a mn6 for road racing.
ME2 --------2012 stock 1st - 2.26 2nd - 1.58 3rd - 1.18 4th - 1.00 5th - 0.71 6th - 0.50 MH3----------2009-2011(2012 w/ PDE) 1st - 2.29 2nd- 1.61 3rd - 1.21 4th - 1.00 5th - 0.81 6th - 0.67 I think these are correct, best to call RPM Transmissions for answers IMHO Jim :D |
Originally Posted by AU N EGL
(Post 1580628128)
Not a big deal. many guys take out the MN12 for an MN6 or have it rebuilt
RPM trans can do it. But use a .84 5th gear and a .75 or .6 for 6th gear Dog rings are nice too, no lift shift :D If I get my MN12 refreshed I'm going with MN6 1-4 and MN12 5-6 gears. Not interested in pulling 200mph in 5th, I'd rather have useability. |
ZR1 gear ratio is too close together for that much HP
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Originally Posted by AU N EGL
(Post 1580628128)
Not a big deal. many guys take out the MN12 for an MN6 or have it rebuilt
RPM trans can do it. But use a .84 5th gear and a .75 or .6 for 6th gear Dog rings are nice too, no lift shift :D |
First of all, let's get the RPO's right.
MN6 is the code for the manual transmission option. MM6 is the 2.66 first gear T56. M12 is the Z06 2.97 first gear T56.
Originally Posted by ysb02
(Post 1580629787)
:iagree:
If I get my MN12 refreshed I'm going with MN6 1-4 and MN12 5-6 gears. Not interested in pulling 200mph in 5th, I'd rather have useability. TR6060 transmissions can be set up for any combinations on the overdrive. |
Originally Posted by Tech
(Post 1580630731)
Funny that GM put the MN12 in there to make the car seem more like a track car. Then, the track guys take it out in favor of the Coupe transmission. Are the guys doing the swap still around the same power level as stock?
On the ZR1 it is also very good, but north of 580 to the ground, that is wheel speed or could be in each gear Hell I only run 400 to the ground and I can wheel speed in 3 gears. the MN12 was to get better Zero to 60 times, the MN12 3-4 is a great combo, but the 2-3 is too much of a jump. part of the other challenge is with the MN12, 3rd is too high for many low speed corners,but 2nd is too low, where the mn6 3rd is just a better gear for many corners. |
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