#1
|
|||
|
|||
taller 3rd & 2nd
I am in the process of gear selection for my tranny. I want to use a 3.88 r&p and a .821 4th gear.
Has anyone used this final drive combo ( 3.88 r&p/ .821 4th) with taller 2nd and 3rd gears? I have found that using a stock 1974 3rd gear going into a taller 4th gear drops into a big hole when shifting into 4th. Purpose: I want a taller third to bridge the gap, and make it smoother transition. This transmission is suppose to be for highway driving but not sacrifice bottom end. I am currently using a 1641cc dual carb'd motor, but will be going to a 2270cc T4.
__________________
http://community.webtv.net/vw911/VWGermanLookPage/ |
#2
|
|||
|
|||
What size are your rear tires?
I have that a trans with 3.88x.82, and with a 24.5" tall tire I found the gearing a little too tall for my 2 liter. When I had 23" tires it was a little too short. I didn't find the drop that bad. Perhaps with your 1641 you don't have enough power to pull that taller 4th. With your proposed engine, you will have a lot more bottom end torque, so the gap won't seem that bad. If you are set at changing 3rd, you could go to a 1.21 or 1.19. I wouldn't change 2nd. That gets real expensive ($5-600). |
#3
|
|||
|
|||
I do not have my wheels yet. I plan on using 18x8 & 18x10 porsche wheels with stock tire sizes, or maybe the 17x7 & 17x9's with stock sizes.
I know the current motor I have does not have the torque I am looking for throughtout the RPM range. But my T4 will. Thanks for the advise on the 2nd and 3rd gearing.
__________________
http://community.webtv.net/vw911/VWGermanLookPage/ |
#4
|
|||
|
|||
before you pick your gears, you have to choose your outside tire diameter.
|
#5
|
||||
|
||||
Quote:
265 / 35 x 18" = 78.5" circumferance with 30% tread remaining on my 18" x 10" turbo twists.
__________________
I love my money pit, uhm, err, I mean my car. 1969 beetle in the works... 2.0 type 4 DTM... 2004 Suzuki GSX-R 1000 crashed www.volksport.net Volksport Kfer Gruppe |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|