350EVO 3.9 vs. OEM 3.5 chart
12-08-2004, 08:18 AM
#3
We worked on this gearing for awhile and it the closest thing to a 4.0 we could get. We can do custom ring and pinions but it will take 4 - 6 weeks and be in the $2500 range for a one off set. There are some critical measurements that need to be calculated when doing a ring and pinion.
Cheers
BJ
Cheers
BJ
12-08-2004, 08:32 AM
#5
Registered User
Originally posted by dwnshift
We worked on this gearing for awhile and it the closest thing to a 4.0 we could get. We can do custom ring and pinions but it will take 4 - 6 weeks and be in the $2500 range for a one off set. There are some critical measurements that need to be calculated when doing a ring and pinion.
Cheers
BJ
We worked on this gearing for awhile and it the closest thing to a 4.0 we could get. We can do custom ring and pinions but it will take 4 - 6 weeks and be in the $2500 range for a one off set. There are some critical measurements that need to be calculated when doing a ring and pinion.
Cheers
BJ
12-08-2004, 09:06 AM
#6
Registered User
Join Date: Jun 2004
Location: Nashville, TN
Posts: 455
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by JeffR116
I think he meant the picture
I think he meant the picture
BTW, my sways came, thanks.
Last edited by Skrill; 12-08-2004 at 09:17 AM.
12-08-2004, 09:44 AM
#7
Registered User
iTrader: (2)
Join Date: Sep 2004
Location: New Jersey
Posts: 730
Likes: 0
Received 0 Likes
on
0 Posts
two things:
1) ditto on the bigger picture
and 2) sorry for not knowing much about transmissions, but can someone interpret the graph a little?
I've read some really good stuff about the 3.9 final drive so far. From the little I know about transmissions, increasing the final drive increases acceleration at the cost of top speed, while decreasing the final drive will give you a higher top speed at the cost of acceleration? Is this correct?
And then, I guess the graph is illustrating this?
1) ditto on the bigger picture
and 2) sorry for not knowing much about transmissions, but can someone interpret the graph a little?
I've read some really good stuff about the 3.9 final drive so far. From the little I know about transmissions, increasing the final drive increases acceleration at the cost of top speed, while decreasing the final drive will give you a higher top speed at the cost of acceleration? Is this correct?
And then, I guess the graph is illustrating this?
Trending Topics
12-08-2004, 09:55 AM
#8
Originally posted by Srivero297
I've read some really good stuff about the 3.9 final drive so far. From the little I know about transmissions, increasing the final drive increases acceleration at the cost of top speed, while decreasing the final drive will give you a higher top speed at the cost of acceleration? Is this correct?
And then, I guess the graph is illustrating this?
I've read some really good stuff about the 3.9 final drive so far. From the little I know about transmissions, increasing the final drive increases acceleration at the cost of top speed, while decreasing the final drive will give you a higher top speed at the cost of acceleration? Is this correct?
And then, I guess the graph is illustrating this?
12-08-2004, 10:33 AM
#10
New Member
Join Date: May 2002
Location: Atlanta
Posts: 1,026
Likes: 0
Received 0 Likes
on
0 Posts
Y'all need to install Mozilla FireFox and the Image Zoom plugin. 
While we're at it, the moderator(s) should
change the way image attachments are downloaded.
--
Jeff
While we're at it, the moderator(s) should
change the way image attachments are downloaded.
--
Jeff
12-08-2004, 11:14 AM
#11
Registered User
Join Date: Feb 2004
Location: columbia md.
Posts: 1,041
Likes: 0
Received 0 Likes
on
0 Posts
Guess I am the only one that doesn't see it as you all do.. If you look at the 4k rpm in 4th it says that the 3.9 is going at 60mph and the OEM would be at 70mph..Nothing about acceleration in the data is inferred..What am I missing here..? Are the colors reversed?
j/k Good work!
12-08-2004, 01:27 PM
#14
Here's a interpretation of the info. ;-)
This is my car before and after the 3.9. (Plus the Tilton flywheel)
But you can see that the hp curve is shifted over to the left so
that at any give speed when you tromp the pedal, you will
have more power to draw on because rpms are higher. I lost
about 15mph in 5th gear. Thank Nissan for 6 speeds!
This is my car before and after the 3.9. (Plus the Tilton flywheel)
But you can see that the hp curve is shifted over to the left so
that at any give speed when you tromp the pedal, you will
have more power to draw on because rpms are higher. I lost
about 15mph in 5th gear. Thank Nissan for 6 speeds!
12-08-2004, 05:31 PM
#16
Registered User
iTrader: (2)
Join Date: Sep 2004
Location: New Jersey
Posts: 730
Likes: 0
Received 0 Likes
on
0 Posts
20rwhp? Those are impressive numbers.
Im starting to think maybe that $2250 is worth it.
Im just so broke right now that I can think whatever I want and it wouldnt really change anything
Im starting to think maybe that $2250 is worth it.
Im just so broke right now that I can think whatever I want and it wouldnt really change anything
12-08-2004, 07:17 PM
#19
Registered User
Join Date: Nov 2002
Location: Central California
Posts: 86
Likes: 0
Received 0 Likes
on
0 Posts
wow... with mustangs this is a ~$200 mod. i take it this isn't simply another gearset?
http://www.partshopper.com/fordmusta...4209-G410.html
http://www.partshopper.com/fordmusta...4209-G410.html
12-08-2004, 07:31 PM
#20
Registered User
iTrader: (4)
Join Date: Aug 2003
Location: Lexington, KY
Posts: 811
Likes: 0
Received 0 Likes
on
0 Posts
Economics at its best . . . supply & demand 
There's so many Mustangs and aftermarket manufacturers that parts are relatively inexpensive when compared to ours.
I'm on the fence line since its a great product, but at a premium price. BUT, they did do the hard work to develop it, so it should pay dividends (its such a toss-up).
G
There's so many Mustangs and aftermarket manufacturers that parts are relatively inexpensive when compared to ours.
I'm on the fence line since its a great product, but at a premium price. BUT, they did do the hard work to develop it, so it should pay dividends (its such a toss-up).
G