CLASS RACER wall of SHAME .... - Page 8

jamie2370 · 03-15-2021, 03:05 PM

Quote:

Originally Posted by Paul Precht

I wonder how a narrowed rear could help when it's the springs and wheel wells that are in the way.

The wider wheel allows a "larger" contact patch of the slick, so they make it so it has say 4" back spacing instead of needing 3 6/32nds back spacing mainly because off the shelf wheels are easier to find then custom offset.

Paul Precht · 03-15-2021, 03:10 PM

Quote:

Originally Posted by jamie2370

The wider wheel allows a "larger" contact patch of the slick, so they make it so it has say 4" back spacing instead of needing 3 6/32nds back spacing mainly because off the shelf wheels are easier to find then custom offset.

You would need a wider rear not a narrowed rear to use more back space.

jamie2370 · 03-15-2021, 03:32 PM

Yeah, that explanation was as clear as mud..lol. Well, think of it like this. Axles are like the extension on your impact, the longer and/or smaller diameter the extension is, the more torque you lose at the socket. Short as possible and as large/thick as possible transfers more power to the wheel. So you ALWAYS shorten to shortest possible to make the wheel/tire fit.....even though technically you are not supposed too

FireSale · 03-15-2021, 04:10 PM

Quote:

Originally Posted by jamie2370

Yeah, that explanation was as clear as mud..lol. Well, think of it like this. Axles are like the extension on your impact, the longer and/or smaller diameter the extension is, the more torque you lose at the socket. Short as possible and as large/thick as possible transfers more power to the wheel. So you ALWAYS shorten to shortest possible to make the wheel/tire fit.....even though technically you are not supposed too

Narrowing a rear end in a stock bodied car is a matter of a few inches, so I don't think it affects torque application that much. Race axles are super hard and I don't think they twist much behind 300 to 600 HP. Factory Showdown and FSS cars are different animals. I've heard CJ Mustangs have running gear more equivalent to ProMod than anything else. From the factory...

FED 387 · 03-15-2021, 07:34 PM

another thing to remember is that whenever you maximize back spacing ( make it greater) you are actually adding weight to the rim/wheel because they have to add additional material to make the wheel stronger/thicker to handle the tree on the wheel/rim--don't believe me take two of the same brand 15" x 12" wheels one with a 2 inch backspace and the other say a 5-6 inch backspace and notice the weight difference--FED 387

03-15-2021, 03:32 PM	#73
jamie2370 Member Join Date: Dec 2014 Location: Perry, GA Posts: 330 Likes: 11 Liked 239 Times in 90 Posts	Re: CLASS RACER wall of SHAME .... Yeah, that explanation was as clear as mud..lol. Well, think of it like this. Axles are like the extension on your impact, the longer and/or smaller diameter the extension is, the more torque you lose at the socket. Short as possible and as large/thick as possible transfers more power to the wheel. So you ALWAYS shorten to shortest possible to make the wheel/tire fit.....even though technically you are not supposed too Last edited by jamie2370; 03-15-2021 at 03:33 PM. Reason: words

03-15-2021, 07:34 PM	#75
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,372 Likes: 409 Liked 300 Times in 160 Posts	Re: CLASS RACER wall of SHAME .... another thing to remember is that whenever you maximize back spacing ( make it greater) you are actually adding weight to the rim/wheel because they have to add additional material to make the wheel stronger/thicker to handle the tree on the wheel/rim--don't believe me take two of the same brand 15" x 12" wheels one with a 2 inch backspace and the other say a 5-6 inch backspace and notice the weight difference--FED 387