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Old 05-30-2013, 05:00 PM   #1
IPT

 
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Gears vs supercharger pros and cons

So, I am piecing this all together and I started thinking about the pros and cons of gears vs supercharging. Car is mostly for street fun and maybe some parking lot autocross stuff. Still, I am interested in hearing thoughts for all uses, and just the differences between the two, pros and cons of each. Here is what (I think) I know. 2SS M6.
Gears: Cheaper (by far), gets to power (higher RPMS) faster vs stock, declines in MPG, requires no mods to the motor, will drop top end speed. Could probably skip 1st gear for "normal" daily driving.
Supercharger: more expensive, should not affect MPG (except if your foot is in it more often) requires a tune, requires motor mods , torque increase across most of the RPM range, risk (low if done right) with stock bottom end.
So am I missing anything major? Anyone do one and then the other? Curious to hear what others experiences are with either one or both of these mods – especially if done one at a time
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Old 05-30-2013, 05:38 PM   #2
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MPG and top end speed loss with rear end gears are not as pronounced in modern six-speed cars as they were in 3 and 4 speed cars back in the day. Depending on the ratio and how you use your car, something like a 1-3 MPG loss is pretty typical. We have actually had a few customers report an increase in fuel economy but they only used their cars for in-town weekend cruising.
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Old 05-30-2013, 05:44 PM   #3
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I had 4.10's for a while ... Totally changed the attitude of the car, for not a whole lot of money .. I added a supercharger and the gears had to go because they didn't play nice .. Dropped down to 3.76's. supercharger made the car FAST where gears made it QUICKER. I know that sounds weird buts that's the best way to explain it.
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Old 05-30-2013, 05:52 PM   #4
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Comparing the two is like comparing cherries and pumpkins. If you want a great seat of the pants mod for relatively cheap, the gears are the way to go. If you're looking for brute force and have the cash, go with the blower. Also, you will probably wish you hadn't put gears in it if you decide on a blower later on.

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Old 05-30-2013, 06:11 PM   #5
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Quote:
Originally Posted by Jayrcr3 View Post
Comparing the two is like comparing cherries and pumpkins. If you want a great seat of the pants mod for relatively cheap, the gears are the way to go. If you're looking for brute force and have the cash, go with the blower. Also, you will probably wish you hadn't put gears in it if you decide on a blower later on.

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Lol .. When I said the gears had to go ... They were in pieces ....
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Old 05-30-2013, 06:22 PM   #6
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Gears: requires speedometer calibration, will lose traction easier, helps to reduce low rpm bucking
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Old 05-30-2013, 06:40 PM   #7
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Lol .. When I said the gears had to go ... They were in pieces ....
I was thinking more about the traction being even worse with the blower and gears together. Mine factory drive train has managed to survive with 650 to the wheels, but I haven't bolted up a set of DR's and went to the strip...... Yet.

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Old 05-30-2013, 06:47 PM   #8
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thanks for the input thus far. Yeah, blower and gears is not the plan. I planned on doing the FI. However, the fuel up here in AK is crap (90 octane) so I'll likely need meth (and I know nothing about that setup at all). When I started adding up the costs of the two there ends up being a significant difference. Then at the same time I am thinking the improvements (sprint speed, torque) might be fairly close as far as "seat of the pants" feeling goes(?). Decisions, decisions.... keep the thoughts and input coming. Always nice to hear from people who have travelled the road already.
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Old 05-30-2013, 06:53 PM   #9
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mostly street with some autocross? neither do suspension
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Old 05-30-2013, 06:57 PM   #10
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If you can afford it supercharge it. I want to drive mine all the time. It is the best mod you can do for your camaro. Makes it feel like your on a crotch rocket.
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Old 05-30-2013, 07:13 PM   #11
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Quote:
Originally Posted by Jayrcr3 View Post
I was thinking more about the traction being even worse with the blower and gears together. Mine factory drive train has managed to survive with 650 to the wheels, but I haven't bolted up a set of DR's and went to the strip...... Yet.

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Hooked em and shredded them. 3d gear power shift. Had to listen to my tuner "I told you this was going to happen". "I told you we should of switched ". Aftermarket gears don't hold up well under that much torque and it really wasn't a surprise at all, more like wishful thinking. Ended up going bulletproof .... DSS
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Old 05-30-2013, 07:34 PM   #12
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What about gears on a cammed motor....3.91s??? yes?
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Old 05-30-2013, 07:38 PM   #13
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What about gears on a cammed motor....3.91s??? yes?
I had 4.10's on with the following mods .. Headers, cam, ported heads .. Don't remember the dyno numbers 480 ish I think with matching torque. Ran like a champ, no issues.
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Old 05-30-2013, 07:47 PM   #14
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I had 4.10's on with the following mods .. Headers, cam, ported heads .. Don't remember the dyno numbers 480 ish I think with matching torque. Ran like a champ, no issues.
sweeeet...going to get me some when i get my heads done.
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