Who Is Running Gtx Gears? Results? Ideas? Hp?
- Thread starter ion332
- Start date
Moeed said:
Well, I prlly wouldn't even be doing this but I called Nick a bunch of times about trying to get in one of his kits and haven't been able to get ahold of him and I have a few friends interested so I was going to try to get about 4 kits made. These are big number KLs, all 350+whp at like 12 psi so I was going to do a bunch of installs for them.
Anyway, seems like Nick is real busy, I know what thats like.
ion332 said:
So let me just reiterate, you guys are talking about 400-500 bucks + labor for the gtx setup, and Nick's is 2800 + labor. Im a big MPI/Nick junkie and any previous work, current, and future was/will be done by him, but 400-500 vs 2000 bucks is a big difference, is it really worth doing one over the other when i WONT be slamming gears even at the track? I'm figuring my car will be somewhere near or over 400 whp sometime this year.
So i was throwing around some gearing calulations, and i kinda have run into a bit of a problem. Assuming us MSP boys keep or same final drive ratio, and swap the 1988 GTX AWD 3rd and 4th gears into our cars, and myself, i want the festiva 5th gear for high speed...
the output seems to basically make 4th gear useless...
at redline:
3rd -91.62
4th - 105.33
5th (festiva .69) - 163.33
See the HUGE gap in the gearing here?
Even with the stock .8 GTX gearing for 5th gear, it puts top speed at 140.88 mph, which seems like an awful lot of load to be boosting with.
Ideas? Anyone make a longer 4th gear to even the gearing out?
the output seems to basically make 4th gear useless...
at redline:
3rd -91.62
4th - 105.33
5th (festiva .69) - 163.33
See the HUGE gap in the gearing here?
Even with the stock .8 GTX gearing for 5th gear, it puts top speed at 140.88 mph, which seems like an awful lot of load to be boosting with.
Ideas? Anyone make a longer 4th gear to even the gearing out?
daedalus said:
Ah its not that bad. What exactly are you worried about now? That the top speed will be too high?
Well, the top speed of a broken trans with the gears you really like is a scorching 0mph.
Escape shaft/ring gear - 4.6
PGT shaft/ring gear - 4.3
(some of you guys might have to buy and install spacers or the reverse idlers since the PGT shafts are longer)
Both of these will bring in your ratio spacings pretty well.
Or, you can go with the gearsets from MPI. Those are your options.
maybe you should be looing into 1.8l GTX AWD ratios and not the 1.6l..
also, anybody have an idea if any of the new 2.0, 2.3l stuff can interchange into the old trannies?
ALSO, FYI IF YOU WANT TOP SPEED: My buddy and I blew up the trans in his 91 EGT. We found an old tranny lying in a parts heap at a dealer. 3 people told us it was from a 80s 626 or mx6, dont know if it was GT or not. His brother is a mechanic there and took the internals out and swap it into the Escort trans, he said he used mostly all the parts from the old trans and it fit together fine. First gear took us to 70KMHish 2nd to about 120ishKM, 3rd was long too. heres what you wanted to hear, 4th gear took us to 200KMPH! we couldnt even try to max 5th. On the highway at around 130-140 5th was like at 2000rpm, it was perfect. We drove it for a year and then an axle started leaking on our drive home from the cottage, we figured we could make it but a few blocks from our house the trans broke apart. Ill talk to him again to try and figure out what final drive he used and what year the 626 trans was from. as for strengh we beat the crap out of the rebuilt trans everyday for a year or so with no problems, of course we were not putting down 400hp but it still seemed stronger than stock
also, anybody have an idea if any of the new 2.0, 2.3l stuff can interchange into the old trannies?
ALSO, FYI IF YOU WANT TOP SPEED: My buddy and I blew up the trans in his 91 EGT. We found an old tranny lying in a parts heap at a dealer. 3 people told us it was from a 80s 626 or mx6, dont know if it was GT or not. His brother is a mechanic there and took the internals out and swap it into the Escort trans, he said he used mostly all the parts from the old trans and it fit together fine. First gear took us to 70KMHish 2nd to about 120ishKM, 3rd was long too. heres what you wanted to hear, 4th gear took us to 200KMPH! we couldnt even try to max 5th. On the highway at around 130-140 5th was like at 2000rpm, it was perfect. We drove it for a year and then an axle started leaking on our drive home from the cottage, we figured we could make it but a few blocks from our house the trans broke apart. Ill talk to him again to try and figure out what final drive he used and what year the 626 trans was from. as for strengh we beat the crap out of the rebuilt trans everyday for a year or so with no problems, of course we were not putting down 400hp but it still seemed stronger than stock
- :
- 2001 Pro 2.0 LX
same gear ratios. most likely same gears.jeffmsp said:
Ya, but I think the final on some of the older 626s were like 3.96 or something which would make the trans stretch out quite a ways 
The older F series transmissions are mostly interchangeable, that includes some of the 80s version escorts etc and their finals were all around 3.6 - 3.8 or so.
http://web2.iadfw.net/theman/protegefaq/transmission.html
The older F series transmissions are mostly interchangeable, that includes some of the 80s version escorts etc and their finals were all around 3.6 - 3.8 or so.
http://web2.iadfw.net/theman/protegefaq/transmission.html
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mazdaspeed75
ZOOM ZOOM BOOM BOOM CLUB
- :
- 2003.5 mazdaspeed
sub
- :
- 2001 Pro 2.0 LX
so do it
mazdaspeed75
ZOOM ZOOM BOOM BOOM CLUB
- :
- 2003.5 mazdaspeed
Yea what he said
spacemonkey
Member
- :
- Mazdaslow
jeffmsp said:
yeah but the problem is you have over 17 years of wear on those tranny parts. I wouldnt mind if it was a automatic but a manual tranmission set. You just gotta hope you get a set that is in good condition.
Would be nice to have a good write up. I think Cwill has a set of GTX gears from MAM
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