VHR + FD Gear Ratio upgrades - 3.9 and 4.08

Z eliminator

I based the 0 to 60 time using the 1/8 mile data calculator from drag racing sites.
Thats the # that i got. Its only a educated guess. But it gets there quick. Its only a # that you can compare other cars with using the same formula.
First gear is a blast when it hooks and does not spin.
You will love the 4.08gears but, they can be a pain in trafic, and it hurts gas mileage/ diff is 700 rpm at 100 km.
Im considering the GTM. supercharger set up. Sam will have it ready for me very soon.
11's here we come. Target is 420 rwhp.

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12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

BalanBro

There is some good to short gears also I think. My tC has very short gear ratios stock, but I often get caught in traffic and it actually works out real nice. While other guys with MTs have to ride the clutch to move slowly and over short distances, I can just put it into 1st gear and crawl. Much easier on the left leg IMHO. Tall gears can be annoying in traffic.

Denny McLain

Basically with about every bolt on engine mod available during logging for fuel/air and timing with the AccessPort, the best 0-60 time I got was 5.01. it appears to be pretty accurate. This was achieved doing about a 3000 rpm launch, letting the tires grab and giving it hell after that. Granted, on a sticky drag strip and playing with tire pressures, could get it a bit lower but probably not much more than a couple of tenths. The problem again with 0-60 is the launch as it grossly favors cars with slicks, all wheel drive or rear engine.

My guess is the drag site made an auto assumption you were using slicks and probably a 1.4-1.5 sixty. The best 60 with my Vette using MT Streets was a 1.52 and it being an honest 600 hp car. Also broke a bunch of crap too because of too much bite.

Trust me.....with you all the way on the benefits and surprised how many people aren't aware of how much better the cars perform and how much more fun to drive. Frankly didn't know they were available or would of had the 4.08's long ago.

Once the gears are in I'm sitting on the fence for a bit. Biggest issue is the cars are so new everyone is working out the bugs. Still can't tune the car with the AccessPort as the software isn't ready so feel like I'm stuck in the mud for now.