geo tranny ? - Transmission Forum

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geo tranny ?
Sunday, February 13, 2005 7:13 PM
I have a 97 cav 2.4 5sp and I found a 92 geo DOHC tranny. Is this the best option for my car? I just whant something better for 1/4 mile races.

Re: geo tranny ?
Monday, February 14, 2005 10:46 AM
DOHC eh?

what are the ratios of 3rd and 4th? I think most 2.4 guys are swapping to 3rd and 4th from the 2.2 motor. Im not sure what the DOHC used. SOHC 3rd and 4th are exactly the same as the 2.2.

Dan


YEP, my 60' times suck

247HP/267ftlbs at 13psi with built motor

Project updates and stuff: www.clubhousecustoms.com
email: dhc1902@yahoo.com
Re: geo tranny ?
Monday, February 14, 2005 4:06 PM
90-93 SOHC base storms had:
1st 3.727
2nd 2.043
3rd 1.448
4th 1.027
5th 0.829
FDR 3.578:1 or 3.833:1

the 90-93 DOHC GSI storms had:
1st 3.909
2nd 2.15
3rd 1.448
4th 1.027
5th 0.829
FDR 4.117

so same 3rd and 4th, at least according to the information I've collected.
Re: geo tranny ?
Monday, February 14, 2005 4:25 PM
This is what I have

2.4
1st 3.73
2nd 2.18
3rd 1.33 40/30
4th 0.92 35/39
5th 0.74
FDR 3.94

2.2
1st 3.91
2nd 2.18
3rd 1.45 42/29
4th 1.03 38/37
5th 0.74
FDR 3.58

Impulse/Storm SOHC
1st 3.272
2nd 2.043
3rd 1.448
4th 1.027
5th 0.829
FDR 3.833

MT2 Isuzu 5spd.
1st 3.73
2nd 2.04
3rd 1.45
4th 1.03
5th 0.74
FDR 3.35

Impulse RS '91.
First 3.909:1 41/11
Second 2.150:1 43/20
Third 1.448:1 42/29
Fourth 1.027:1 38/37
Fifth 0.829:1 34/41
Final Drive Ratio 4.117:1 70/17

2.0L Sunbird Isuzu
First 3.9:1 43/11
Second 2.15:1 43/20
Third 1.45:1 42/29
Fourth 1.03:1 38/37
Fifth 0.74:1 32/43
Final Drive Ratio 3.45:1 69/20



YEP, my 60' times suck

247HP/267ftlbs at 13psi with built motor

Project updates and stuff: www.clubhousecustoms.com
email: dhc1902@yahoo.com
Re: geo tranny ?
Monday, February 14, 2005 5:19 PM
Everything looks good but the impluse storm SOHC 1st gear should be 3.727, its the same as the 2.4 1st gear just rounded 3.727 = 3.73 rounded.

Some of the other trannys have the same gear, some rounded some not, like 2.04 =2.043, and 1.448 = 1.45 rounded, 1.027 = 1.03 rounded.

Some folks round to the 1st decimal place other folks round to the 3rd decimal place, but they are infact the same gears. Make sense?
Re: geo tranny ?
Monday, February 14, 2005 6:37 PM
Ya, makes sense completely

But Im starting iwth a 2.2, and I wanted to use the geo first since my 3.91 sux...

especially when i make 250ftlbs at 3500rpms

Dan


YEP, my 60' times suck

247HP/267ftlbs at 13psi with built motor

Project updates and stuff: www.clubhousecustoms.com
email: dhc1902@yahoo.com
Re: geo tranny ?
Monday, February 14, 2005 8:13 PM
Thanks to all who posted. So in short what gears should I use to help my 1/4 mile times? What is the best set up? Is there a limited slip differential in any of these transmissions that will help? I have a million questions but I will keep it short. I am not looking for a miracle part just enough to keep these honda drivers in their place.
Re: geo tranny ?
Tuesday, February 15, 2005 4:38 AM
Swapping 3rd and 4th to the 2.2/SOHC/DOHC would be your best bet. The 2.4 gears are really tall after 2nd so....

For a LSD there really isnt much out there. You can get a Phantom Grip. Usually for mildly modded motors they work fine. If your making lots of power they tend to do nothing from what I have heard.

Dan


YEP, my 60' times suck

247HP/267ftlbs at 13psi with built motor

Project updates and stuff: www.clubhousecustoms.com
email: dhc1902@yahoo.com
Re: geo tranny ?
Wednesday, February 16, 2005 5:54 PM
Can anyone tell me what year 2.2 tranny gears I will need?
Re: geo tranny ?
Thursday, February 17, 2005 7:06 AM
I believe all 2.2s have the 3rd and 4th gears you will need.

Dan


YEP, my 60' times suck

247HP/267ftlbs at 13psi with built motor

Project updates and stuff: www.clubhousecustoms.com
email: dhc1902@yahoo.com
Re: geo tranny ?
Thursday, February 17, 2005 2:30 PM
Thanks for the info. Now I have to find a 2.2 tranny.

Re: geo tranny ?
Thursday, February 17, 2005 4:05 PM
If you just want a couple gears I have em man. May be cheaper and easier than getting them yourself. Just email me.

Dan


YEP, my 60' times suck

247HP/267ftlbs at 13psi with built motor

Project updates and stuff: www.clubhousecustoms.com
email: dhc1902@yahoo.com
Re: geo tranny ?
Friday, February 25, 2005 10:27 AM
juicedz4 I tried to email you but got no answer. I wanted to know what shipping would be to 44120 for 3rd and 4th gear from the 2.2 tranny.
Re: geo tranny ?
Friday, February 25, 2005 6:32 PM
My bad, it's 44102.
Re: geo tranny ?
Friday, March 11, 2005 7:16 AM
Melaza,

Sorry, it has been nuts around here lately with the new baby and all.

I dont have any more 3/4 gears left that would work for you.

All I have is one more older diff with machined gears. $200 shipped

Sorry.

I may be getting some more of these in the near future.

I will post when I do.

Dan


YEP, my 60' times suck

247HP/267ftlbs at 13psi with built motor

Project updates and stuff: www.clubhousecustoms.com
email: dhc1902@yahoo.com
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