what is the best gearing ?

[wbexxon]

We were talking about lowering the gear ratio in my 2005 Viper. One guy said it would help with 1/4 mile, I said not with a supercharger it would redline even quicker then it does now and would also be even harder to launch. What do you guys think?
Brian

 

[SnakeEye]

3.55's are the bomb. You'll wonder why you waited so long.

 

[wbexxon]

Even with the supercharger? It redlines pretty quick now.

 

[safireviper]

3.33 - nice midway

 

[VIPER D]

At 700 rwhp I would hate to try to launch the car with 355's and run craps. On drag radials it would be fine.


you should dive a srt with a blower and gears 1st. then decide



vd..

 

[dirk989]

For those of you who have gone to 3.55s, where did you get it done and about what did it cost?

Dirk

 

[SnakeEye]

Dirk - your local Viper tech should be able to handle the gear change for you. Figure somewhere in the neighborhood of $1K parts/labor.

 

[Volltage]

3.55s are so much fun for whatever you are doing. It took my installer 1 1/2 days to do the install, and got the gears from Parts Rack Jon B. Total cost was $1100 and worth every penny.

 

[wbexxon]

my viper does have a supercharger I was wondering if the gears would be better at the drag strip

 

[Viper X]

Like ViperD says, you can't really use the power with 3.55's and street tires. I took mine out and went back to 3.07s. Depends on how you want to use the car.

Do you want to go or spin? Go = 3.07's or at most 3.33's with sticky tires. 3.55's and up = spin city with out BFG Drag Radials or Slicks.

Unitrax is the place to get your gears. Call Devin. Install should take about 1 day. I wouldn't put 3.55's in a supercharged car without doing the Quaife too. You will blow the hyrdoloc, it's just a matter of time. I blew two of them.

Good luck.

Dan

 

[INSOMNIAC]

3.33 - nice midway

If you can find them....
I don't think any vendor has 3.33 in stock now...

 

[repiv]

Supposedly no one is makeing the 3.33's for the Viper at the moment, although JohnB at Partsrack says that next Feb an Italian co. will have some made

 

[wbexxon]

what the hell is a Quaife ?

 

[INSOMNIAC]

Quaife is good for you
http://www.quaife.co.uk/profile/index.htm

 

[safireviper]

3.33 - nice midway

If you can find them....
I don't think any vendor has 3.33 in stock now...

D'Oh!

 

[Racer Robbie]

do you need to do amy reprograming if the cumputer? Does the 3:55 gears make 6th gear usable as now there really is no use for 6th gear. Hell I never even get into 5th gear until around 75 mph. You loose to much accelleration in 5th and 6th.

 

[GR8_ASP]

The answer is NO. For the Gen III vehicle speed is calculated by the ABS system. Therefore a change in gearing has no effect. However, a change in tire diameter will (but that is just to make the guys who get smaller tires to think they are going faster).

 

[Viper X]

Atro,

Add power, 6th gear becomes very useable.

3.55's help a stock car a bunch.

No problems with the speedo as GR8 ASP says.