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-   -   Gear and Tire Selection (https://classracer.com/classforum/showthread.php?t=12418)

Smitty 08-18-2008 11:11 AM

Gear and Tire Selection
 
Okay guys, my Cleveland is not turning the R's quick enough. I think I have too much tire (32x14 M/T's stiff sidewall 102 roll out) and not enough gear (5.67). Where would you guys start first, smaler tire with less roll out or go up to a 6.00 gear? I don't have the ends right now to upgrade the gear set in the tranny so I need to go another root. Any help would be appreciated.

Smitty

Stephen & Horace Johnson 08-18-2008 11:21 AM

Re: Gear and Tire Selection
 
Quote:

Originally Posted by Smitty (Post 79653)
Okay guys, my Cleveland is not turning the R's quick enough. I think I have too much tire (32x14 M/T's stiff sidewall 102 roll out) and not enough gear (5.67). Where would you guys start first, smaler tire with less roll out or go up to a 6.00 gear? I don't have the ends right now to upgrade the gear set in the tranny so I need to go another root. Any help would be appreciated.

Smitty



I would think with that SBF you need more gear, 6.00-6.20, whats your first gear ratio?



Stephen Johnson #2162
Horace Johnson #2167
SS/D 427 Ford Fairlane NHRA-IHRA

Sean Haning 08-18-2008 01:02 PM

Re: Gear and Tire Selection
 
http://store.summitracing.com/partde...5&autoview=sku

Start there and adjust accordingly!

Smitty 08-18-2008 01:34 PM

Re: Gear and Tire Selection
 
Quote:

Originally Posted by Sean Haning (Post 79682)
http://store.summitracing.com/partde...5&autoview=sku

Start there and adjust accordingly!

Yeah and I'm sure Jim would bounce me right down the road, but it was a funny ha ha I have to give you that.

Smitty

Smitty 08-18-2008 01:36 PM

Re: Gear and Tire Selection
 
Quote:

Originally Posted by Stephen & Horace Johnson (Post 79655)
I would think with that SBF you need more gear, 6.00-6.20, whats your first gear ratio?



Stephen Johnson #2162
Horace Johnson #2167
SS/D 427 Ford Fairlane NHRA-IHRA

Stephen,

The C-4 has a 2.46 first gear ratio if I'm not mistaken.

Smitty

Sean Haning 08-18-2008 02:36 PM

Re: Gear and Tire Selection
 
Quote:

Originally Posted by Smitty (Post 79691)
Yeah and I'm sure Jim would bounce me right down the road, but it was a funny ha ha I have to give you that.

Smitty

Oh yeah, pesky class rules. lol

Rory McNeil 08-18-2008 03:09 PM

Re: Gear and Tire Selection
 
On my 10.0 ET 4 speed bracket car, stiff sidewall 14x32 Goodyears (1984 version) slowed my car down by 2 mph and almost 1 full tenth over a regular sidewall tire. May be something to look at..


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