'75 drivetrain strength
Thread Starter
Le Mans Master
Joined: Jun 2007
Posts: 7,801
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From: Crush your enemies, see them driven before you, and hear the lamentations of the women TX
'75 drivetrain strength
Got no joy posting this in the general section. Perhaps I should have posted it in the performance section in the first place.
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I'm toying with the idea of building a 406 to replace this supposedly built up 350. I didn't build this engine and don't really think it's putting out like I'd like. I'm looking at near 500hp on the build and slightly more than that with the torque. Don't particularly race track or street, just like to go fast and the torque gets me there faster and makes it fun around town.
So, I'm wondering how much power the stock '75 drivetrain I have will take before failure. I've got a Keisler 500 in it at the moment. To the best of my knowledge the rest of it is stock or OEM replacement. I had some U joints replaced a couple months ago and will have to go in and spec them out for a better idea.
____________________
I'm toying with the idea of building a 406 to replace this supposedly built up 350. I didn't build this engine and don't really think it's putting out like I'd like. I'm looking at near 500hp on the build and slightly more than that with the torque. Don't particularly race track or street, just like to go fast and the torque gets me there faster and makes it fun around town.
So, I'm wondering how much power the stock '75 drivetrain I have will take before failure. I've got a Keisler 500 in it at the moment. To the best of my knowledge the rest of it is stock or OEM replacement. I had some U joints replaced a couple months ago and will have to go in and spec them out for a better idea.
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
It really depends on your tires. If you have street tires, then your traction will break before any of your stock components assuming it's all in good health.
If you put on wide rear street tires or slicks, then you're looking at breaking U-joints, snapping spindles, and grenading your rear end.
Like I said, if you keep street tires on your car you'll probably be fine.
If you put on wide rear street tires or slicks, then you're looking at breaking U-joints, snapping spindles, and grenading your rear end.
Like I said, if you keep street tires on your car you'll probably be fine.
Thread Starter
Le Mans Master
Joined: Jun 2007
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From: Crush your enemies, see them driven before you, and hear the lamentations of the women TX
Street tires on the rear; P255's. Unless I get something real grippy or wide, I guess those can be a limiting factor. Makes me feel better.
Thread Starter
Le Mans Master
Joined: Jun 2007
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From: Crush your enemies, see them driven before you, and hear the lamentations of the women TX
Just looking ahead. If it comes to that, I'll be re-evaluating the tires and drivetrain. All I would need would be to swap engines, break it in, punch it and drift across into the neighbor's yard trailing U joints and tranny fluid.
Cruising
Joined: Jan 2008
Posts: 12
Likes: 0
From: Eglin AFB FL
i don't know if this was a fluke or not but my '75 had an issue with a rear driverside bearing, took it apart, the spindle was slightly twisted!(i'll try to find a pic) I have obviously sense replaced them ( they were stock) and have seen no problems as of yet. so if your looking for a weak spot, might be a place to start.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
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I recognize that photo. I think that was the finals for the factory stock appearing, stock tires nationals. I forget the title of the exact match, but I think that was a ZL1 COPO Camaro against a L88. they were awful fast on stock tires. it's featured in several magazines.