cam and gearing down?
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From: Chicago
cam and gearing down? Hey guys, I'm thinking of doing a cam down the line and I have a question or two. After 2-3 years or so of EXTREME gear whine with 4.10's (speed inc. told me it was one of the worst they've heard) I was wondering if it would be at all worth it to gear back down when doing something like a 224/228 cam...maybe 112 lsa?
This car is basically street only and daily driven, so I'd like something that acts fairly tame but also performs very well. I daily drive it around town but also spend a LOT of time on the highway so I'd like to compromise but wouldn't mind biasing a little toward top end. Car would also have longtubes by the time the cam was installed and this would all run through a cut-out.
So would I be losing a lot of performance gearing down to something with less whine like stock 3.42s, or would this be possible? How would the car behave on the low end with 4.10s/stock cam vs. stock 3.42s/new cam?
Thanks a bunch
This car is basically street only and daily driven, so I'd like something that acts fairly tame but also performs very well. I daily drive it around town but also spend a LOT of time on the highway so I'd like to compromise but wouldn't mind biasing a little toward top end. Car would also have longtubes by the time the cam was installed and this would all run through a cut-out.
So would I be losing a lot of performance gearing down to something with less whine like stock 3.42s, or would this be possible? How would the car behave on the low end with 4.10s/stock cam vs. stock 3.42s/new cam?
Thanks a bunch
Thread Starter
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Joined: Oct 2002
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From: Chicago
K I can look into those possibly. The problem is that I used GM motives which are supposed to be quiet and ls1 speed told me it wasn't the gear but the way my rear was taking them 
Not sure how much validity there is to that statement or if that effects the 3.73 decision?
Not sure how much validity there is to that statement or if that effects the 3.73 decision?
Originally Posted by Blk98Bird
K I can look into those possibly. The problem is that I used GM motives which are supposed to be quiet and ls1 speed told me it wasn't the gear but the way my rear was taking them
Not sure how much validity there is to that statement or if that effects the 3.73 decision?
Not sure how much validity there is to that statement or if that effects the 3.73 decision?
Thread Starter
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From: Chicago
Originally Posted by SSpdDmon
Motive's are made in Italy. AAM is here in Detroit. I doubt Motive supplies GM. I'm pretty sure they wouldn't ship heavy metal parts 4,000+ miles. The logistics cost would be a little high.
Thread Starter
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From: Chicago
Originally Posted by wilddawg
any cam with more duration than a 224 will like 3.42 or 3.73's and you can get thecorrect back lash with more teeth you need .008 to .010 back lash
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Originally Posted by Blk98Bird
I might not be understanding what you're saying, but every time i've ever seen GM gears labeled for sale it's been as "GM Motive Gears." They came up as such on a google search as well.
I've got Motives in both of my f-bodies, both 3.73's and both make noise. I don't hear factory installed 3.73 rears in GM pickups making that kind of noise.
Last edited by SSpdDmon; Nov 2, 2006 at 08:54 AM.
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