Magnum 2.97 vs 2.66 gear set
01-26-2020 | 05:32 PM
#1
Thread Starter
Teching In
Joined: May 2013
Posts: 29
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From: British columbia
Magnum 2.97 vs 2.66 gear set I know this has been discussed but I'm looking to get opinions from experienced members on which gear set to go with on my full weight ctsv
Car will be max effort lsa with 3.73 rear gear and will weigh roughly 4000lbs without me in it. We are expecting anywhere from 7 - 800whp blower only, with the possibilities of adding nitrous down the road. Car has 19" street wheels and will be running a 17" drag pack with roughly 28" height. I understand the 2.66 set will have a stronger 1st gear and a better 3-4th shift with better traction on the street, but at my curb weight should I stick with the 2.97 to get it going at the prepped track? I plan on sticking with the 3.73 rear gear and it seems like most guys running the 2.66 with the 3.73 never leave as hard as they should.. The car will primarily be a street car so I am leaning more towards the 2.66 set but I do like the idea of having the 2.97 1st gear for running it on the track to get it moving. Any input appreciated, forgot to mention I'll be running it on the 1/4 and 1/8
Car will be max effort lsa with 3.73 rear gear and will weigh roughly 4000lbs without me in it. We are expecting anywhere from 7 - 800whp blower only, with the possibilities of adding nitrous down the road. Car has 19" street wheels and will be running a 17" drag pack with roughly 28" height. I understand the 2.66 set will have a stronger 1st gear and a better 3-4th shift with better traction on the street, but at my curb weight should I stick with the 2.97 to get it going at the prepped track? I plan on sticking with the 3.73 rear gear and it seems like most guys running the 2.66 with the 3.73 never leave as hard as they should.. The car will primarily be a street car so I am leaning more towards the 2.66 set but I do like the idea of having the 2.97 1st gear for running it on the track to get it moving. Any input appreciated, forgot to mention I'll be running it on the 1/4 and 1/8
01-28-2020 | 07:35 PM
#2
Teching In
Joined: Nov 2019
Posts: 15
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Maybe you can come up with your own decision if you multiply the 1st gear ratio by the rear ratio.
Most supercharged cars do not need as low of a 1st gear as a small or NA engine. Another thing to consider is the close ratio has less of an rpm drop between gears. Help for quicker shift and staying in a narrow power band.
Most supercharged cars do not need as low of a 1st gear as a small or NA engine. Another thing to consider is the close ratio has less of an rpm drop between gears. Help for quicker shift and staying in a narrow power band.