5th gear swap?
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5th gear swap?
i'm going to put in a kia trans, but i want a taller 5th gear for better gas mileage. i checked the protege forums and they said the 626 gear would work and that the protege dx would be even taller. but then someone said it didnt work. does anyone know what 5th can be swapped into the gseries trannny for sure?
- Limegreen mx-3
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the 5gear on a kia g-series trans is a taller gear than that of the mazda g-series trans. but not my much
reason why i say that is 5gear at 3000 i was at 60mph on the mazda trans
where as on the kia trans on 5gear at 3000 i was about 70mph.
like i said not mch of a difference.
that a few things i notice since i have use boths trans kia/mazda
reason why i say that is 5gear at 3000 i was at 60mph on the mazda trans
where as on the kia trans on 5gear at 3000 i was about 70mph.
like i said not mch of a difference.
that a few things i notice since i have use boths trans kia/mazda
(12.4@118@18psi) 92 MX-3, KIA (BP-DE)Swap, Electromotive TEC II Standalone, 8,200 Rev Limit, Custom Intake/Exhaust Manifold, 1,000cc PTE Injectors, Custom Fuel Rail, Aeromotive FPR, 80MM Holley TB, MSD 8.5MM Wires, NGK V-Power #8, SC6262 Turbo, 3 in. DownPipe, Tial WG/BOV, 600HP PTE FMIC, 2.5IN Intercooler Piping, EQUUS/Autometer KIA G-Series Tran, Extreme ACT Clutch, Built BP in starting process.
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- Limegreen mx-3
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not that i know of so i can't help u there.
the clutch i went with was a extreme act for the miata.
rated around 400 ft lbs or torque.
has done good for me. and i drive my mx-3 as a daily cause its just to much fun to drive.
and i do drive across town just to get to work m-f. i put about 240 miles just to work and home every week. thats on a kia trans. thats a lot of miles just for work.
the clutch i went with was a extreme act for the miata.
rated around 400 ft lbs or torque.
has done good for me. and i drive my mx-3 as a daily cause its just to much fun to drive.
and i do drive across town just to get to work m-f. i put about 240 miles just to work and home every week. thats on a kia trans. thats a lot of miles just for work.
(12.4@118@18psi) 92 MX-3, KIA (BP-DE)Swap, Electromotive TEC II Standalone, 8,200 Rev Limit, Custom Intake/Exhaust Manifold, 1,000cc PTE Injectors, Custom Fuel Rail, Aeromotive FPR, 80MM Holley TB, MSD 8.5MM Wires, NGK V-Power #8, SC6262 Turbo, 3 in. DownPipe, Tial WG/BOV, 600HP PTE FMIC, 2.5IN Intercooler Piping, EQUUS/Autometer KIA G-Series Tran, Extreme ACT Clutch, Built BP in starting process.
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- Limegreen mx-3
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(12.4@118@18psi) 92 MX-3, KIA (BP-DE)Swap, Electromotive TEC II Standalone, 8,200 Rev Limit, Custom Intake/Exhaust Manifold, 1,000cc PTE Injectors, Custom Fuel Rail, Aeromotive FPR, 80MM Holley TB, MSD 8.5MM Wires, NGK V-Power #8, SC6262 Turbo, 3 in. DownPipe, Tial WG/BOV, 600HP PTE FMIC, 2.5IN Intercooler Piping, EQUUS/Autometer KIA G-Series Tran, Extreme ACT Clutch, Built BP in starting process.
- Yoda
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Re: 5th gear swap?
I used the .67 5th gear set from an '80-81 626 with the 2L turbo. It is a complete bolt in for the G series MTX. Unfortunately this P/N# are no longer available in North America from Mazda since this parts are almost 30 years out of production. With the 4:11 final and the super overdrive 5th, I was turning around 2700-2750rpm at 130kmh. The only real problem I had was that I kept fouling plugs if I drove long distances in 5th.nobodyhere671 wrote:i'm going to put in a kia trans, but i want a taller 5th gear for better gas mileage. i checked the protege forums and they said the 626 gear would work and that the protege dx would be even taller. but then someone said it didnt work. does anyone know what 5th can be swapped into the gseries trannny for sure?
There is a current production .68 ratio available in some markets outside of North America and Asia. Looking at them they appear that they will fit in a standard version of the G tranny although I have yet to take the time to test fit them.
Re: 5th gear swap?
What's the cause behind the fouling with the tall gear? Does the engine just not like that rpm range/load?Yoda wrote:I used the .67 5th gear set from an '80-81 626 with the 2L turbo. With the 4:11 final and the super overdrive 5th, I was turning around 2700-2750rpm at 130kmh. The only real problem I had was that I kept fouling plugs if I drove long distances in 5th.nobodyhere671 wrote:does anyone know what 5th can be swapped into the gseries trannny for sure?
There is a current production .68 ratio available in some markets outside of North America and Asia. Looking at them they appear that they will fit in a standard version of the G tranny although I have yet to take the time to test fit them.
How often did you have to clean them up? Any way to prevent/reduce the fouling by adjusting spark plug gap or type?
Would going lower with a taller Final Drive ratio just make it worse or is there a range on the low end that gets away from the cause of the fouling?
Was this in your built 2.0L zx2 motor? (think that's what it was?). Do you think the 1.6L B6 would suffer the same fate?
Dreaming of an RS with the 3.619:1 and a 5th gear swap (a .69 from a ford festiva that someone mentioned, or the .68 you are talking about). More on that on this other thread: http://www.mx-3.com/phpBB3/viewtopic.php?f=30&t=68036
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Re: 5th gear swap?
wow that's almost a 4 year old thread revival.
Yoda doesn't live here anymore.
Yoda doesn't live here anymore.
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- Nd4SpdSe
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Re: 5th gear swap?
Sadly. Yoda was awesome!
People don't understand that lowering the revs doesn't mean you'll gain fuel mileage.
Fowling would come from the lack of revs and how hard the motor is working because you've divided your power even further.
People don't understand that lowering the revs doesn't mean you'll gain fuel mileage.
Fowling would come from the lack of revs and how hard the motor is working because you've divided your power even further.
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