Mfa60
10-25-2006, 03:34 PM
#1
Mfa60
I obtained a powerpoint slide today from Aichikikai, the company that manufactured our six speed transmissions. I have been exchanging dialogue with someone in the North American office because I am in need of a taller 6th gear and this slide shows that one is available. I will keep you all posted on any updates and if I am able to get my hands on the parts I want.
10-25-2006, 05:36 PM
#3
Yes they make the 5spd trans in the 4th gen. The altima (older altima, which shares the same 5spd transmission) has a slightly taller 5th gear in it - .740 vs .790 which is really hardly any change at all.
10-26-2006, 07:36 AM
#8
Dear Mr. SR20DEN
I know that there is a 0.54 6th gear in the list.
However I believe that you could not obtain that gear set. Because Aichi Machine Industry does not produce and sell any kind of gear set for after market. And all products that Aichi Machine Industry produces are sold through the Nissan dealerships.
I regret that we will not be able to meet your requirement.
Best regards,
Guy at Aichikikai
DAVE B? Can you help here?
11-01-2006, 06:58 PM
#10
Supporting Maxima.org Member
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Should drop the 80 mph cruising speed of around 2500 RPMs to roughly 2150. Worth it depending on the final pricing.
Makes you wonder why nissan went with .67 and .63 if .54 was available. They could have claimed better highway fuel economy for 5.5 and 6th gens.
Makes you wonder why nissan went with .67 and .63 if .54 was available. They could have claimed better highway fuel economy for 5.5 and 6th gens.
11-01-2006, 07:47 PM
#11
The 3.812 and 0.630 do 60mph @ 1950 and my 4.133 does 60mph @ 2125. With the .54 that will drop to 1825 (4.133) or 1675 (3.812).
The 80mph specs are (24.8" tire dia.)
4.133
x .63 = 2825 rpm (what I am dealing with now)
x .54 = 2425 rpm (what I will be getting)
-----------
3.812 (oe gear in the '02-'03)
x .63 = 2600 rpm
x .54 = 2225 rpm (probably too tall for most of you)
The 80mph specs are (24.8" tire dia.)
4.133
x .63 = 2825 rpm (what I am dealing with now)
x .54 = 2425 rpm (what I will be getting)
-----------
3.812 (oe gear in the '02-'03)
x .63 = 2600 rpm
x .54 = 2225 rpm (probably too tall for most of you)
11-01-2006, 07:49 PM
#12
Oh, and I have already requested data on the RS5F50A and the brand new RS6F94R (Versa and new Altima 6 speed). I will post them if he gives them to me. I wouldn't be suprised if they have taller gears for the 50A.
11-01-2006, 08:08 PM
#16
Originally Posted by NmexMAX
25.86" is OE. 25.68" = 245/45 - 17. Of course this is from the sidewall specs.
Yeah you're quoting unloaded brand new tires. When you load them your effective diameter is reduced. They're further reduced with tire wear. The 24.8 is the result of vehicle loaded and 70% worn Nitto 555s on a dynojet 248c. I have dynojet data with 1600mile OE blotenzas. I'll look it up and post that too if you want.
edit: I couldnt find my low mileage data but the medium mileage data on my 225/50-17s come up to the exact same 24.8.
(6550rpm at 120mph, 2002-06-20)
11-01-2006, 08:17 PM
#17
I had ~20% on my blowtenzas and saw 130.0 mph in 3rd @6400 RPM. That's from my dyno data.
I'm going to find my dyno with my new tires...
Upon further review of my dyno plots, looks like my stock blotenzas @ 20% remaining tread were actually 23.65"...
I'm going to find my dyno with my new tires...
Upon further review of my dyno plots, looks like my stock blotenzas @ 20% remaining tread were actually 23.65"...
11-02-2006, 06:37 AM
#19
Originally Posted by Deckdout2
Work my numbers for a brand new set of 19" Toyo T1Rs. 245/35/19
From the sidewall spec, you're actually smaller than stock by 0.1". You need a dyno run file to get the real #'s.
11-02-2006, 01:13 PM
#21
Sorry everyone else. I tried.
Dear Mr. SR20DEN
You are welcome.
With regard to your more questions, I regret that I could not inform you. Because the F50A manual transmissions are applied for the Nissan vehicles in European market, I don't have any information on it. And I don't absolutely know the brand new Nissan RS6F94R. It is a wonder that you know the brand new Nissan RS6F94R.
Best regards,
Aichi Guy
Dear Mr. SR20DEN
You are welcome.
With regard to your more questions, I regret that I could not inform you. Because the F50A manual transmissions are applied for the Nissan vehicles in European market, I don't have any information on it. And I don't absolutely know the brand new Nissan RS6F94R. It is a wonder that you know the brand new Nissan RS6F94R.
Best regards,
Aichi Guy
11-02-2006, 01:59 PM
#22
Originally Posted by SR20DEN
Sorry everyone else. I tried.
Dear Mr. SR20DEN
You are welcome.
With regard to your more questions, I regret that I could not inform you. Because the F50A manual transmissions are applied for the Nissan vehicles in European market, I don't have any information on it. And I don't absolutely know the brand new Nissan RS6F94R. It is a wonder that you know the brand new Nissan RS6F94R.
Best regards,
Aichi Guy
Dear Mr. SR20DEN
You are welcome.
With regard to your more questions, I regret that I could not inform you. Because the F50A manual transmissions are applied for the Nissan vehicles in European market, I don't have any information on it. And I don't absolutely know the brand new Nissan RS6F94R. It is a wonder that you know the brand new Nissan RS6F94R.
Best regards,
Aichi Guy
11-02-2006, 07:15 PM
#23
Using my dyno graphs with my 245-45-17 Nitto 555R DRs which were probably half worn at the time, I calculate 25.02" tire diameter from one run and 25.01 from the other for my tires.
edit: I should clarify, this is using a .954 4th gear and 3.823 FD as per the FSM.
edit: I should clarify, this is using a .954 4th gear and 3.823 FD as per the FSM.
11-03-2006, 07:04 AM
#24
Originally Posted by JClaw
Makes you wonder why nissan went with .67 and .63 if .54 was available. They could have claimed better highway fuel economy for 5.5 and 6th gens.
11-09-2006, 08:17 AM
#25
The gear set has been ordered. It will probably take 4-8 weeks to get to me from Japan. So you all will have to wait till about February for me to give you the final report. :jeopardysong:
11-09-2006, 08:20 AM
#26
Originally Posted by SR20DEN
The gear set has been ordered. It will probably take 4-8 weeks to get to me from Japan. So you all will have to wait till about February for me to give you the final report. :jeopardysong:
11-09-2006, 09:29 AM
#29
Originally Posted by SR20DEN
0.54
Post #8
Post # 21
Post #8
Post # 21
Ok i was reading as the .54 was a mistake that they did not acctually make that and you could not order that gear.
Also about the 5spd i dont what i was thinking with that i remembered reading it but thought they might have had the gears. Good luck with the new gears gives me something to look at once i swap the 3.5 and 6spd in.
11-09-2006, 09:46 AM
#30
Originally Posted by Mymax97
Ok i was reading as the .54 was a mistake that they did not acctually make that and you could not order that gear.
Also about the 5spd i dont what i was thinking with that i remembered reading it but thought they might have had the gears. Good luck with the new gears gives me something to look at once i swap the 3.5 and 6spd in.
Also about the 5spd i dont what i was thinking with that i remembered reading it but thought they might have had the gears. Good luck with the new gears gives me something to look at once i swap the 3.5 and 6spd in.
11-09-2006, 09:57 AM
#31
ahh well hopefully you will get the right parts. This would be a big thing if we could lower that last gear with the .54. Cant wait to see the results and goodluck with getting the right parts.
11-13-2006, 01:03 PM
#32
Found this info on this webpage - http://www.maxthrottle.com/viewtopic.php?p=589
Look at the final drive on the second transmission. Whoa...
could just be a typo though.
Look at the final drive on the second transmission. Whoa...
could just be a typo though.
Delta - 5-Speed / MFA60 (GK Tiburon V6)
--------------------------
1st = 3.231
2ed = 1.952
3ed = 1.296
4th = 0.943
5th = 0.775
Reverse = 3.455
FDR = 4.063
Delta - 6-Speed / MFA60 (GK Tiburon V6)
--------------------------
1st = 3.153
2ed = 1.944
3ed = 1.333
4th = 1.055
5th = 0.857
6th = 0.704
Reverse = 3.002
FDR = 4.678
--------------------------
1st = 3.231
2ed = 1.952
3ed = 1.296
4th = 0.943
5th = 0.775
Reverse = 3.455
FDR = 4.063
Delta - 6-Speed / MFA60 (GK Tiburon V6)
--------------------------
1st = 3.153
2ed = 1.944
3ed = 1.333
4th = 1.055
5th = 0.857
6th = 0.704
Reverse = 3.002
FDR = 4.678
03-12-2007, 07:22 AM
#33
The gears arrived today. So far everything looks legit. The Input gear has 50 teeth and the main gear has 27 teeth so that does equal 0.54. By the end of the day I will have these test fitted on a gear-set I have laying around. And if/when it works out I am sure the Tibby owners will also want to know about this, as well as any other MFA60 equipped vehicles.
03-12-2007, 08:36 AM
#35
Originally Posted by SR20DEN
The gears arrived today. So far everything looks legit. The Input gear has 50 teeth and the main gear has 27 teeth so that does equal 0.54. By the end of the day I will have these test fitted on a gear-set I have laying around. And if/when it works out I am sure the Tibby owners will also want to know about this, as well as any other MFA60 equipped vehicles.
Sick!!I though you'd given up on this...
03-12-2007, 09:12 AM
#38
Originally Posted by Kevlo911
Wow the mpg gains could be great 
VERY unusual. I normally get 23-24mpg on that trip. I don't think it was the new bumper cover/new paint, so maybe they changed the fuel blend at the gas pump. Very very odd.Pics of said gears.
http://www.vq35de.com/Images/MFA60/0540/
For reference the input gear is on top of a CD.
