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04-21-2013, 05:48 PM
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#1 |
 Drives: 2010 Camaro SS Join Date: Dec 2012
Location: OKC
Posts: 74
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3.70 or 3.91 gears?
I've got an A6 camaro ss. The plan is cam and heads swap, 3600 stall, gears, and MAYBE nitrous (150). Anyway which gear is better for roll racing? 3.70 or 3.91
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04-22-2013, 02:34 AM
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#2 |
        
Drives: 2013 A6 GT 5.0 Join Date: Nov 2009
Location: Edmond, OK
Posts: 2,909
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3.91's if you stay all motor and have a triple disk converter that can be locked up at WOT. If your roll races extend beyond 125mph do 3.70's or stay stock. With nitrous and a triple disk converter do 3.70's. With nitrous and a single disk converter stay stock.
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BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.
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04-22-2013, 11:00 AM
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#3 |
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Drives: 2010 Camaro SS Join Date: Dec 2012
Location: OKC
Posts: 74
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The converter will be triple disk. I don't know that they will go past 125 all that often. How big of a difference is there between 3.70 and 3.91? Really noticeable or just kind of noticeable?
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04-22-2013, 06:32 PM
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#4 | |
   
Drives: 2SS/RS Join Date: Sep 2008
Location: Western North Carolina
Posts: 7,199
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Quote:
3.91's in a L99 is mostly for those that's stock or with just bolt ons (headers and cai). |
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04-22-2013, 07:17 PM
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#5 |
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Writer
Drives: 2010 SS / 1967 Camaro Join Date: May 2009
Location: Chicago, IL
Posts: 7,216
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Racing from a roll? 3600 stall sounds too big, and I don't think I'd do a gear for a while either.
For my 4th gens, 150 shot would make a stall flash 500-1000 rpms above it's rating.
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PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II 13.15@106 1.95 | 100% Stock 12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800 |
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