5 speed and 6 speed gear ratios needed

Engines, Transmissions & Final Drive questions and answers

Moderators: timk, Stu, zombie, Andrew, The American, Lokiel, -alex, miata, StanTheMan, greenMachine, ManiacLachy, Daffy

User avatar
NitroDann
Forum sponsor
Posts: 10280
Joined: Thu Nov 05, 2009 12:10 pm
Vehicle: NA6
Location: Newcastle NSW
Contact:

5 speed and 6 speed gear ratios needed

Postby NitroDann » Mon May 10, 2010 12:58 pm

Hey guys,

For the purposes of comparing my new engine to my old one and so i can go and do a couple of accurate dyno runs, can somebody please list the gear ratios for both the 5 and 6 speed?

As some may know ive just swapped a 6 speed into my Na6 and i would like to do a few pulls to check AFR's but i might as well get a power readout while im at it.

Thanks a lot in advance,
Dann
http://www.NitroDann.com

speed wrote:If I was to do it again, I wouldn't even consider the supercharger.

User avatar
Locutus
Racing Driver
Posts: 879
Joined: Thu Jul 26, 2007 7:39 pm
Vehicle: NB SP
Location: Sydney
Contact:

Re: 5 speed and 6 speed gear ratios needed

Postby Locutus » Mon May 10, 2010 2:10 pm

5th is your new 4th (1:1 ratio).

User avatar
NitroDann
Forum sponsor
Posts: 10280
Joined: Thu Nov 05, 2009 12:10 pm
Vehicle: NA6
Location: Newcastle NSW
Contact:

5 speed and 6 speed gear ratios needed

Postby NitroDann » Mon May 10, 2010 2:26 pm

Thanks,

I'd guessed that much, but are there any lists of the rest of the ratios?

Ive just done a hillclimb on the weekend and while i was at it i had a couple of rolling drags with my friends blown na8, he also seems to have a 4.3 diff, but he has a 5 speed. His car makes 130rwkw (manias optimistic dyno) but he could barely catch me from 70 kph onwards, and from a stand it was down to the launch. Dont get me wrong his car was faster but it seemed like there wasnt enough in it.

I also did some rolls with a stock engined, 4.3 diff 5 speed na6 (mine is an na6) and by the time we were out of third gear, his was so far behind that it was ridiculous. Considering the mods done to my car i think a lot of this must come from the drivetrain?

Thanks,
Dann
http://www.NitroDann.com

speed wrote:If I was to do it again, I wouldn't even consider the supercharger.

User avatar
Guran
Speed Racer
Posts: 3754
Joined: Sun Feb 15, 2009 6:42 pm
Vehicle: ND - 1.5
Location: Albion Park NSW
Contact:

5 speed and 6 speed gear ratios needed

Postby Guran » Mon May 10, 2010 4:53 pm

5 speed in NA6, NA8, NB8A: 3.136, 1.888, 1.330, 1.000, 0.814
6 speed in 10AE, NB8B: 3.760, 2.269, 1.646, 1.257, 1.000, 0.843

Diff ratio is 4.300 in NA6 and 4.100 in NA8/NB8A
Diff ratio is 3.909 in 10AE and 3.636 in NB8B

:)
Standard 2006 NC - YouTube
WP 1:11.89 | SMP-S 1:05.90 GP 1:54.93 N 1:18.09 L 2:22.49 | PW 1:02.52
PI 2:00.55 | W-S 1:12.44 W-L 1:43.36 | SR 1:33.25

User avatar
NitroDann
Forum sponsor
Posts: 10280
Joined: Thu Nov 05, 2009 12:10 pm
Vehicle: NA6
Location: Newcastle NSW
Contact:

5 speed and 6 speed gear ratios needed

Postby NitroDann » Mon May 10, 2010 7:31 pm

Highly appreciated.

Thanks a lot. Explains why its so very toey.

Dann
http://www.NitroDann.com

speed wrote:If I was to do it again, I wouldn't even consider the supercharger.


Return to “MX5 Engines, Transmission & Final Drive”

Who is online

Users browsing this forum: No registered users and 128 guests