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View Full Version : Back to an automatic?!



w/oarctic7g
10-25-2010, 07:07 PM
I did the 5 speed swap using a 95 Galant tranny in my 95 Galant dirt track race car. The problem is 3rd is too high and 2nd too low. So from the searching I have done it appears the 7G has a higher final output in 3rd than both the 1g or 2g in 5th. I am not sure what the auto ratios are but I know I wasn't up against the rev limiter like I am now. I guess I need some reasonable opinions or other ideas on trannys to use. Can anybody confirm that the 1g will work with mods? Should I go back to an auto and just have it built up by a good shop?

Sleepervr-4
10-25-2010, 09:51 PM
Don't think the 1g trans will work but the 2g gst will with 2g gst axles. Here is a page that might help you http://www.vfaq.com/mods/Trannies.html

Galanttuner10
10-25-2010, 10:32 PM
gst tranny and axles or a 1994 galant gs tranny. they have slightly longer gear ratios and a longer final drive ratio but once you do the swap, i wouldnt go back

Galanttuner10
10-25-2010, 10:33 PM
do you have a lightweight flywheel as 3rd pulls pretty good for me from 2500 on with my lightweight

w/oarctic7g
10-25-2010, 11:18 PM
I just used the stock boat anchor at the time because I wasn't sure which motor I was going to run with. I have been collecting engines and have some choices now g4cs 6bolt, expo 2.4 6 bolt, g4cp, and a few 4g64 7 bolts. I am leaning toward the 6 bolt setup now though. If it makes sense, torque is more important than hp in this situation as I am running against 350+horsepower cars. Some opinions have been that the lighter flywheel may not be as much benefit because of running in the mid to higher r's almost exclusively. Trial and error I guess.

Galanttuner10
10-25-2010, 11:42 PM
lightweight will be fine, revs are much better

w/oarctic7g
10-26-2010, 12:34 AM
Sleeper- I think I might be reading those tables wrong or something. Is the 7g 3rd gear output ratio taller than all the other Mitsu's in 5th gear? I thought to get the output ratio you added the final plus whatever gear. The 7g third comes out to 4.865.

w/oarctic7g
10-26-2010, 08:27 PM
Looked into the lightweight flywheels today. They ranged from 8-11 lbs flywheel and complete clutch kit for $250 on up, some good quality brands for under $400. What is different about the gst axles is it just that the tranny side has a larger diameter or are they different lengths?

Galanttuner10
10-26-2010, 10:55 PM
same length, but the spline count on the tranny side is different.

i have a gripforce 11 lb flywheel and it pulls well from low rpms. do lightwight with an act 2100 6 puck and ur good to go, even a street disc will work

w/oarctic7g
07-19-2011, 11:08 PM
I have read about a few different final drive ratios one says 4.322 another says 3.625 for a non GS 7g 5speed or 2g Spyder. Can someone confirm which one is correct?

evil-G-nius
07-20-2011, 11:01 AM
how fast are you trying to go? I am basically stock and I can hit 60+ in second. 3rd I can hit 90...I think thats pretty good actuallly

w/oarctic7g
07-20-2011, 01:02 PM
I am trying to go as fast as it will take me without hitting the wall! I am trying to match (to the best of my low budget ability) gears and peak torque to the track and my driving style. Working on ordering a cam regrind and tranny swap and trying to do my homework.