Fine.. 5th gear.

Midnight22 · Sep 17, 2003

P5's rev higher because the gear ratios r different, we r a wagon, so we r expected to haul stuff around hence the gears are made for getting up and goin, no top end, u guys, MSP, MP3 r sedans and ur gears are made more for top end than anything else, thats y we rev at 4000 doin 80, trust me i doubt u really noticed ur rpm b4, but thats the way it is

Kooldino · Sep 17, 2003

Midnightracer22 said:
P5's rev higher because the gear ratios r different, we r a wagon, so we r expected to haul stuff around hence the gears are made for getting up and goin, no top end, u guys, MSP, MP3 r sedans and ur gears are made more for top end than anything else, thats y we rev at 4000 doin 80, trust me i doubt u really noticed ur rpm b4, but thats the way it is

Who told you THAT?

All 3rd gen FS-DE proteges have the same gear ratios.

But, if you disagree, let's place our money where our mouth is. Loser has to contribute $10 to the forum in the winner's name. Agreed?

cbcbd · Sep 17, 2003

Midnightracer22 said:
P5's rev higher because the gear ratios r different, we r a wagon, so we r expected to haul stuff around hence the gears are made for getting up and goin, no top end, u guys, MSP, MP3 r sedans and ur gears are made more for top end than anything else, thats y we rev at 4000 doin 80, trust me i doubt u really noticed ur rpm b4, but thats the way it is

Sorry, that's incorrect:

From Mazda website:
P5 gear ratios:
1st: 3.307 (13.575)
2nd: 1.842 (7.561)
3rd: 1.310 (5.378)
4th: 0.970 (3.982)
5th: 0.755 (3.099)
Reverse: 3.166
Final Drive: 4.105

MSP gear ratios:

1st: 3.307 (13.575)
2nd: 1.842 (7.561)
3rd: 1.310 (5.378)
4th: 0.970 (3.982)
5th: 0.755 (3.099)
Reverse: 3.166
Final Drive: 4.105

Kooldino · Sep 17, 2003

cbcbd - SHH! No! Take that away! I want him to bet me first!

Midnight22 · Sep 17, 2003

i could be wrong, but i'd be willing to see it first hand, when i go out today, i'll make note of my revs and post them up, then yall can compare and tell my y i rev at 4000 at 80

cbcbd · Sep 17, 2003

lol, maybe he'll still bet against you

Midnight22 · Sep 17, 2003

lol, i'll still bet u if u want me to

scott42 · Sep 17, 2003

Kooldino, I've got my 15" steelies and snow tires on right now (to pass inspection and as I wait for new tires) and my shift points are glaringly different, the car runs very differently and the rpm range is just plain different. I have no real data to support me, and I do agree with your assimilation to the clock and the hands...but it definitely is different with different wheels. So basically, I'm not agreeing or disagreeing

But I think comparing P5's to MSP's there could be a difference due to different wheels/tire size.

Kooldino · Sep 17, 2003

Midnightracer22 said:
i could be wrong, but i'd be willing to see it first hand, when i go out today, i'll make note of my revs and post them up, then yall can compare and tell my y i rev at 4000 at 80

I'm also at 3900-4000 rpm @ 80mph (according to the speedometer). There will be a SLIGHT difference in how the tach shows RPM based on electrical current, but nothing you should be able to notice. As turboge said before, tachs are not entirely accurate. Regardless, it says right there on the mazda site and any tech manual on our cars that the gear ratios are the same. Our trannies even have the same part number.

Pay up, sucker.

Midnight22 · Sep 17, 2003

scott42 said:
Kooldino, I've got my 15" steelies and snow tires on right now (to pass inspection and as I wait for new tires) and my shift points are glaringly different, the car runs very differently and the rpm range is just plain different. I have no real data to support me, and I do agree with your assimilation to the clock and the hands...but it definitely is different with different wheels. So basically, I'm not agreeing or disagreeing But I think comparing P5's to MSP's there could be a difference due to different wheels/tire size.

see hahahahaha, u pay up, hahahahha

Kooldino · Sep 17, 2003

scott42 said:
Kooldino, I've got my 15" steelies and snow tires on right now (to pass inspection and as I wait for new tires) and my shift points are glaringly different, the car runs very differently and the rpm range is just plain different.

Impossible. Your car doesn't know what wheels it has on it. While different diameter wheels will change your ACTUAL speed, they won't change the speed and / or RPM output that you're seeing on your gauges. You're talking to a guy who has 17's in the summer and 15's in the winter. While my actual speed varies 3% or so between the different sets, the car has NO idea. Thus you'll still shift at the same RPM and your speedometer will still read the same number.

I have no real data to support me, and I do agree with your assimilation to the clock and the hands...but it definitely is different with different wheels. So basically, I'm not agreeing or disagreeing But I think comparing P5's to MSP's there could be a difference due to different wheels/tire size.

Click to expand...

Again, in ACTUAL speed, yes, tire diameter matters. But the car doesn't "know" about the wheel diameter and assumes it's stock, therefore showing X mph for Y rpm in gear Z.

Kooldino · Sep 17, 2003

Midnightracer22 said:
see hahahahaha, u pay up, hahahahha

cbcbd already posted proof for my argument. YOU pay up, cracka!

(mj)

cbcbd · Sep 17, 2003

Kooldino said:
Again, in ACTUAL speed, yes, tire diameter matters. But the car doesn't "know" about the wheel diameter and assumes it's stock, therefore showing X mph for Y rpm in gear Z.

Exactly. Your car is set up to be accurate with your stock wheel size. When you put something else other than stock your reading will be incorrect, just do that, run up to a speed and then have your speed checked by someone driving along side with a stock car and you'll see how off it is.

Originally posted by Midnightracer22
see hahahahaha, u pay up, hahahahha

Well, since your argument was that we had different RPMs at an MPH because of different gear ratios (not because of tire size) I think you lose

scott42 · Sep 17, 2003

Yeah, you're right KD. The difference here is if we are all basing our RPM readings on what MPH we are going, then all of our RPMs will be different depending on what wheels tires we have on. While the gears and RPMs will be the same at the same speed, if we all have the same speedo setup, then we are all going different speeds in actuality when we all think we are doing 80. That makes sense, and would explain why people run different RPMs at the "same" speed (cause we're not going the same speed)

Tadaaaaaa!

scott42 · Sep 17, 2003

you guys beat me to the same statement

Midnight22 · Sep 17, 2003

ooo, yall suckl, im broke, sry no can pay, haha

Kooldino · Sep 17, 2003

Midnightracer22 said:
ooo, yall suckl, im broke, sry no can pay, haha

:wtf:

gheeeeeeeey!

FunkyCold5 · Sep 17, 2003

3000rpm = 70mph
3500rpm = 80mph

Pre-flash and post-flash. No change.

turboge · Sep 17, 2003

OK guys I monitored speed this morning with the haltech.

2500 = 60mph
3000 = 70mph
3400 = 80mph

This is a direct pickup off of the Crank Trigger, you won't get any more accurate than that for RPM, however I cannot tell you how accurate the speedometer is, but those numbers are what your tach should read if it were calibrated correctly and your speedometer is "correct".

This is with stock wheels and tires on my car.

scott42 · Sep 17, 2003

There is no way on earth I'd be able to do 80mph @ 3400 rpm with winter wheels (80mph=4100+rpm) or stock wheels (3900-4000+ rpm)...so the speedo is pretty off between cars, is what I think at least

Fine.. 5th gear.

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