Moser 12 bolt axles, 30 spline chrome moly. Any idea how much HP they are good for? Yes, I twisted one.
And keep in mind that it's automatic and 3.42 gears.
Moser 12 bolt axles, 30 spline chrome moly. Any idea how much HP they are good for? Yes, I twisted one.
And keep in mind that it's automatic and 3.42 gears.
Last edited by 55 Tony; 04-18-2018 at 03:14 PM.
Tony
1955 Bel Air Sport Coupe
Sure they are chrome moly aftermarket axles? They shouldn't twist with your power level and gearing, especially with an automatic and limited traction.
Suggest you talk to Moser.
Moser says all their axles are made of 1541H alloy, not chrome moly.
I found this and I think it is what I want:
4340 is designated as chrome-moly and is noted for its ability to absorb shock of split-second acceleration. This particular grade is widely used in aftermarket shafts as it is known for its strength and affordability.
Or these are one step down I think:
4140 is a chrome-moly steel and features improved hardness, greater elasticity and resistance to corrosion.
Tony
1955 Bel Air Sport Coupe
Depends what you call real.
Tony
1955 Bel Air Sport Coupe
Yield strength of 4340 (chrome nickel moly) = 125000 psi
Yield strength of 4140 (chrome moly) = 63000 psi
Yield strength of 1541 (high manganese) = 51000 psi
This will vary some depending on the actual heat treat, as will hardness and toughness.
8-9 second drag race cars use 4340 "normalized" tubing. Wall thickness and construction must meet SFI specs.
Slower cars that require a cage can use 1020 mild steel tubing, wall thickness and construction must meet NHRA rules.