|
Register or Log In To remove these advertisements. |
|
|
|
|||||||
 |
|
|
Thread Tools | Display Modes |
|
|
10-01-2019, 10:15 AM
|
#1 |
|
Registered User
Join Date: Jul 2014
Location: Washington
Posts: 532
|
Transmission Gear Ratio?
What Sort Of First Gear Ratio Should I Run In My 4 Speed Transmission. The Car Has 3:73 Gears In The Rear End And Goin Behind a 454
Also Whats a Fair Price For a Used An M-21. Thanks |
|
|
|
10-01-2019, 02:47 PM
|
#2 |
|
Registered User
Join Date: Apr 2014
Location: Southern Iowa
Posts: 308
|
Re: Transmission Gear Ratio?
2.95:1
__________________
1972 C30 Grain Hauler, 350/400 1967 1500 GMC Stepside SWB, In Transformation Process 1967 RS/SS Camaro 350/TKO600 |
|
|
|
|
10-01-2019, 03:04 PM
|
#3 | |
|
Registered User
Join Date: Oct 2010
Location: Kingsburg, Ca.
Posts: 92
|
Re: Transmission Gear Ratio?
Quote:
I like shifting close ratio gears. Is this a car it is going into? If so with a 3.73 rear I'd pick a 2.20 first gear. |
|
|
|
|
|
10-01-2019, 03:35 PM
|
#4 | |
|
Registered User
Join Date: Jul 2014
Location: Washington
Posts: 532
|
Quote:
My Wifes 71 chevelle |
|
|
|
|
|
10-01-2019, 04:27 PM
|
#5 |
|
Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,151
|
Re: Transmission Gear Ratio?
.
I think 2.66:1 w/3.42 is perfect...My rough translation of that into your project yields 2.35:1, which is pretty close to Quickshift's 2.20:1. -klb
__________________
67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
|
|
|
|
10-01-2019, 05:13 PM
|
#6 |
|
Senior Member
 
Join Date: May 2017
Location: Dowagiac Michigan
Posts: 202
|
Re: Transmission Gear Ratio?
Let's not forget to take tire dia and weight of the car into consideration
Monza to Monte carlo can make a big difference |
|
|
|
|
10-01-2019, 09:42 PM
|
#7 |
|
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,723
|
Re: Transmission Gear Ratio?
IMO, nothing could be a worse choice than an M21/M22. The 2.20 first gear absolutely stinks with less than a 4.56 gear. The 2.66 first and 3.42 is getting closer.
I had a 2.62 first Super T10 in my Camaro and thought it was the 2.44. I broke it and replaced it with the 2.44 and miss the 2.62. And that's with a 4.10 gear. In my big block Corvette I bought a McLeod street 5 speeed which has same ratios as a T5 from a V8 Camaro. 2.95 first and a .64 OD. I'll be running 3.73 in the rear which is right at an 11:1 first gear which is my preference on the street.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
|
|
|
|
| Bookmarks |
|
|
Hybrid Mode
