2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

Rear end ratio and quarter mile..

Thread Tools
 
Search this Thread
 
Old 04-12-04, 10:46 PM
  #1  
777** The Anti-rice

Thread Starter
 
DEZERTE's Avatar
 
Join Date: Sep 2002
Location: Seattle, WA
Posts: 2,100
Likes: 0
Received 0 Likes on 0 Posts
Rear end ratio and quarter mile..

Why dont the people who are into the 1/4 mile upgrade to the 4.3 rear end? And how come i never see that in peoples sigs; the 4.3:1 rati., is it 'cuz people never do it? It seems like it would play a significant role in acceleration, especially going from a 3.9:1... ?
I donno, basically what Im askingis why dont more people do this upgrade?
Old 04-12-04, 10:50 PM
  #2  
88 AE

 
BDoty311's Avatar
 
Join Date: Mar 2002
Location: N/A
Posts: 2,865
Likes: 0
Received 0 Likes on 0 Posts
Expensive and difficult compared to the results.

I don't think going from a 4.10 to a 4.33 is going to make that much of a difference in a drag car.
Old 04-12-04, 10:53 PM
  #3  
777** The Anti-rice

Thread Starter
 
DEZERTE's Avatar
 
Join Date: Sep 2002
Location: Seattle, WA
Posts: 2,100
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by BDoty311
...and difficult compared to the results.

What does this mean?
Old 04-12-04, 10:58 PM
  #4  
88 AE

 
BDoty311's Avatar
 
Join Date: Mar 2002
Location: N/A
Posts: 2,865
Likes: 0
Received 0 Likes on 0 Posts
Well installing a different final drive ratio is a time consuming and difficult task.
Old 04-12-04, 11:11 PM
  #5  
SOLD THE RX-7!

 
Scott 89t2's Avatar
 
Join Date: Mar 2001
Location: Vancouver, BC, Canada
Posts: 7,451
Likes: 0
Received 0 Likes on 0 Posts
because it only fits N/As which are too slow for the track anyways LOL
Old 04-12-04, 11:21 PM
  #6  
777** The Anti-rice

Thread Starter
 
DEZERTE's Avatar
 
Join Date: Sep 2002
Location: Seattle, WA
Posts: 2,100
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by Scott 89t2
because it only fits N/As which are too slow for the track anyways LOL
LOL!!!!! TRU DAT22@
Old 04-12-04, 11:41 PM
  #7  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
Re: Rear end ratio and quarter mile..

Originally posted by DEZERTE
Why dont the people who are into the 1/4 mile upgrade to the 4.3 rear end? And how come i never see that in peoples sigs; the 4.3:1 rati., is it 'cuz people never do it? It seems like it would play a significant role in acceleration, especially going from a 3.9:1... ?
I donno, basically what Im askingis why dont more people do this upgrade?
I don't get the 3.9 thing... is this not the 91 vert in your sig???

If it is the 4.1 came standard on all S5 verts regardless of tranny.
Old 04-12-04, 11:54 PM
  #8  
Like Ghandi with a gun

 
Kenteth's Avatar
 
Join Date: Mar 2003
Location: Rapid City, SD
Posts: 4,584
Likes: 0
Received 0 Likes on 0 Posts
Re: Re: Rear end ratio and quarter mile..

Originally posted by Icemark
If it is the 4.1 came standard on all S5 verts regardless of tranny.
thats interesting...
Old 04-12-04, 11:56 PM
  #9  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
Re: Re: Re: Rear end ratio and quarter mile..

Originally posted by Kenteth
thats interesting...
nah, the S5 vert was heavier and the Feds raised the gas guzzler weight level, so Mazda put it accross the board on the verts, just to help the accell a little.
Old 04-13-04, 12:10 AM
  #10  
Like Ghandi with a gun

 
Kenteth's Avatar
 
Join Date: Mar 2003
Location: Rapid City, SD
Posts: 4,584
Likes: 0
Received 0 Likes on 0 Posts
hmm... interesting (hah) seriously it is
Old 04-13-04, 12:12 AM
  #11  
777** The Anti-rice

Thread Starter
 
DEZERTE's Avatar
 
Join Date: Sep 2002
Location: Seattle, WA
Posts: 2,100
Likes: 0
Received 0 Likes on 0 Posts
i have an 89 vert, i thoguht it came with a 3.9 rearend.
Old 04-13-04, 12:20 AM
  #12  
Former Moderator. RIP Icemark.
 
Icemark's Avatar
 
Join Date: Apr 2001
Location: Rohnert Park CA
Posts: 25,896
Likes: 0
Received 19 Likes on 19 Posts
Originally posted by DEZERTE
i have an 89 vert, i thoguht it came with a 3.9 rearend.
No, only the 88 vert came with the 3.9. The 89 came with a 4.1
Old 04-13-04, 05:51 AM
  #13  
I'm a boost creep...

 
NZConvertible's Avatar
 
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes on 8 Posts
Re: Rear end ratio and quarter mile..

Originally posted by DEZERTE
Why dont the people who are into the 1/4 mile upgrade to the 4.3 rear end?
Because most FC's have a 4.1:1 diff and a 5% shorter ratio is going to make hardly any difference. If you're really into drag racing dropping 5% of the car's weight will have a similar effect for less effort and no money.

Last edited by NZConvertible; 04-13-04 at 05:55 AM.
Old 04-13-04, 08:53 AM
  #14  
Rotary Freak

 
Bukwild's Avatar
 
Join Date: Apr 2003
Location: DC Area
Posts: 2,702
Likes: 0
Received 1 Like on 1 Post
yeah I most likely will have some 4.44 gears cut for my vert/t2 rear end. I had 3.90 on my vert and went to 4.10. I did notice a little difference. Not hard to notice a difference when you have like 120rwhp. Anyways
I rode in Kevin landers vert/t2 and he had 4.30 gears and their was a noticable difference I thought. One you will notice right away is higher rpms at 5th gear 70mph driving. Doesn't help you at the pump but higher rpms will help accelaration across the board. I am looking to run 400rwhp with 4.44 gears = just about unbeatable on the street.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Th0m4s
Build Threads
25
02-26-19 02:04 AM
coltboostin
Rotary Drag Racing
0
08-20-15 11:37 PM



Quick Reply: Rear end ratio and quarter mile..



All times are GMT -5. The time now is 11:38 AM.