MPI got gear.

I would be all for lengthening 5th.. what would the kit cruise, say at 70mph for rpm?

Also, would this lengthen 5th? its not a must, but i dream of a much nicer top end.
 
btw I spoke with Pdhaudio83 yesterday his tranny is down as well, it might just be the shift fork they have not taken it apart yet :(

either way this is really leaning me to these gears

is there anyone that makes an upgraded shift fork? I remember seeing this a long time ago but dont remember
 
I talked to PDH yesterday... I'm pretty sure it's just a fork... Mazda makes an upgraded fork and it is significantly different...

as far as the 5th gear... I have to run the calculations, but I"m pretty sure your 70 mph cruise will go from 3500 down to about 2900.
 
lcruz64 said:
And will this upgraded fork prevent the poor lubrication on the trany?

I've said it before and I'll say it again... WHAT poor lubrication of the tranny? There is no actual case of evidence that genuinely points to a lubrication problem. Focus's blown gear had charring on the synchro, which is part of where this lubrication thought comes up... but when a gear is engaged, the synchro, shaft, ring gear, and main gear all rotate TOGETHER.. there is no movement of any of them relative to one another... so considering that every transmission has popped IN gear... the only necessary lubrication is BETWEEN the gears... and considering that they are sitting a bath of oil submerged... I don't think there is a lubrication issue there... so again... WHAT lubrication issue.

EDIT: I'm not trying to be a dick on this point, but there has not been any genuine proof of a lubrication issue... and that is how rumors and false ideas get spread... if there is a lubrication issue and it can be proven and shown... then awesome... and it needs to be shown if it is mechanical, or a fluid type issue, or whatever else... Nick's gear sets are of a much higher quality performance design than what is in our transmissions... so there is no doubt they are superior and will perform much better overall... but it's not an apples oranges comparison in a lot of ways.
 
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TurfBurn said:
I talked to PDH yesterday... I'm pretty sure it's just a fork... Mazda makes an upgraded fork and it is significantly different...

as far as the 5th gear... I have to run the calculations, but I"m pretty sure your 70 mph cruise will go from 3500 down to about 2900.

yeah and for the 400+ whp track people, this means you will finish the 1/4mile in 4th gear instead of 5th. (cheers)
 
lcruz64 said:
Edited
So WHAT will the upgraded fork improve on the well lubricated trany?

LOL... I wouldn't call it well lubricated... I'd go with "at this point we have no reason to really believe it is not sufficiently lubricated" tranny. The upgraded fork only applies to pre 2002.5 Protege's. Anything after 2002.5 has the fork already. They added a beefier collar where it rides on the actuating rod, and they also altered some of the angles in the casting that change how it sits and holds onto the ring gear. It basically should yield a smoother action and be slightly more robust to prevent breakage... that's all the "upgraded" forks do... there are also upgraded synchros that don't show any visible difference, but are supposedly heat treated and/or coated differently than the earlier transmissions.
 
TurfBurn said:
LOL... I wouldn't call it well lubricated... I'd go with "at this point we have no reason to really believe it is not sufficiently lubricated" tranny. The upgraded fork only applies to pre 2002.5 Protege's. Anything after 2002.5 has the fork already. They added a beefier collar where it rides on the actuating rod, and they also altered some of the angles in the casting that change how it sits and holds onto the ring gear. It basically should yield a smoother action and be slightly more robust to prevent breakage... that's all the "upgraded" forks do... there are also upgraded synchros that don't show any visible difference, but are supposedly heat treated and/or coated differently than the earlier transmissions.

There is one issue that needs to be looked at steve, improper lubrication on the sleeve that the gear would slide on to would cause the gear to slightly seize and then break. Maybe also the cause of the scarring on the synchros.
 
Focus said:
There is one issue that needs to be looked at steve, improper lubrication on the sleeve that the gear would slide on to would cause the gear to slightly seize and then break. Maybe also the cause of the scarring on the synchros.

But it wouldn't do it IN gear. When it is in gear it is all locked up and everything is fixed relative to each shaft. Because everything has broken in gear is why i have a problem with the lubrication theory... I do agree the design does lend itself to the potential for a lubrication problem as you have pointed out... but we haven't actually seen a failure that would be indicative to it.
 
TurfBurn said:
I talked to PDH yesterday... I'm pretty sure it's just a fork... Mazda makes an upgraded fork and it is significantly different...

as far as the 5th gear... I have to run the calculations, but I"m pretty sure your 70 mph cruise will go from 3500 down to about 2900.

my 70mph cruise is already 3100.. i was watching it last night. so, i'd guess the new gear would lower it to 2700?

again, i dont mean to bother, but would this extend my top speed?
 
If there is no governor... and if you have a enough horsepower to do it... then yes it would extend your top speed...

I'll try to do the calculations right now and give yout he info... your speedo is off if you cruise at 70 mph at 3100 rpm's... (I think... my speedo reads like 3300 at 72 and i know it reads high..)

EDIT: Did the caclulation and assuming a 215/45/17 tire 70 mph should yield 2960 for rpm's. So it would seem your speed would be pretty accurate.
 
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I did the calcs on the gear... it reduced your cruise speed by about 200 rpm's and it increases your top speed assuming a redline of 6900 rpm's by roughly 7 mph.
 
TurfBurn said:
But it wouldn't do it IN gear. When it is in gear it is all locked up and everything is fixed relative to each shaft. Because everything has broken in gear is why i have a problem with the lubrication theory... I do agree the design does lend itself to the potential for a lubrication problem as you have pointed out... but we haven't actually seen a failure that would be indicative to it.

How about while getting in to gear?
 
TurfBurn said:
I did the calcs on the gear... it reduced your cruise speed by about 200 rpm's and it increases your top speed assuming a redline of 6900 rpm's by roughly 7 mph.

Sweet.

this is on my winter to do list.
 
Focus said:
How about while getting in to gear?

While getting in to gear, yes potentially there... BUT the power of the motor is not a factor at that point as you are not loading the transmission (or shouldn't be if you are shifting properly) and we'd see failures on unmodified cars as well then...
 
subscribe, so when will the r&d be done with the fifth gear so we know what the ratio ranges are, what all comes with the kit (if any) and a good $$ est, & how much higher the top end will be or 70mph rpm range. just the thought of bringing the rpm's down at 70 makes gas last that much longer.
 
It should go in another thread.. this is really for Nick's stuff, and we should keep it focused on that because it is a great product he has.. just keep an eye out for a new thread soonish (this next week) in the general performance section.

thanks,

Steve
 

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