Aces High Bulletin Board

General Forums => The O' Club => Topic started by: eagl on February 24, 2009, 02:57:46 PM

Title: Differential mods for better traction
Post by: eagl on February 24, 2009, 02:57:46 PM
I'm considering doing this diff mod for more traction, since my car will be transitioning from a daily driver to a weekend racer.  :rock

http://www.pirate4x4.com/forum/showthread.php?t=763645

Questions for you guys - I already have a beefed up clutch, so do you think I'll have the same problem this guy had?  Also, what's the best street-legal tires for straight acceleration since I expect the extra traction will have me spinning the wheels all the time by accident?  This guy had so much traction he couldn't get out of the driveway without burning his clutch, so I'm going to borrow some welding equipment and get right to work.

Title: Re: Differential mods for better traction
Post by: Bronk on February 24, 2009, 03:33:12 PM
 :rofl
Title: Re: Differential mods for better traction
Post by: Shuffler on February 24, 2009, 03:44:27 PM
 :rofl too funny.

My sister in laws ex called me once... been several years a go.... and said he and a buddy did a front brake job on his truck and it would not move. I went over to his house and took a look. He had disc fronts and had put the anti squeal material that should be on the back of the pads, on the face of the pads. Was like glueing them to the rotor. After a long laugh we pried those pads off and he cleaned them then did the installation under my supervision.
Title: Re: Differential mods for better traction
Post by: moot on February 24, 2009, 04:12:41 PM
(http://farm4.static.flickr.com/3351/3306909111_e819a062ee_o.jpg)
Title: Re: Differential mods for better traction
Post by: Airscrew on February 24, 2009, 04:40:05 PM
OMG thats some funny stuff right there (almost forgot were I was)....   :D :rofl

almost as good as the "Water-Cooled Case gone wrong" thread, I think that one went 32 pages and that was a couple of years ago.
Title: Re: Differential mods for better traction
Post by: Masherbrum on February 24, 2009, 05:16:07 PM
My buddy has a home built rock crawling buggy with "Lincoln-Locked" diffs.   If you know what you are doing, it is fine.

If you're gonna be drag racing, I'd suggest spending $400-$500 and get a Detroit Locker.   You may end up in a situation where you end up trashing an entire rear axle assembly.
Title: Re: Differential mods for better traction
Post by: vorticon on February 24, 2009, 05:16:39 PM
 :lol

was wondering when that would show up on here.
Title: Re: Differential mods for better traction
Post by: CAP1 on February 24, 2009, 09:05:07 PM
I'm considering doing this diff mod for more traction, since my car will be transitioning from a daily driver to a weekend racer.  :rock

http://www.pirate4x4.com/forum/showthread.php?t=763645

Questions for you guys - I already have a beefed up clutch, so do you think I'll have the same problem this guy had?  Also, what's the best street-legal tires for straight acceleration since I expect the extra traction will have me spinning the wheels all the time by accident?  This guy had so much traction he couldn't get out of the driveway without burning his clutch, so I'm going to borrow some welding equipment and get right to work.



ok, now THAT is funny.

if you really are doing anything though, don;t weld anything. go buy a detroit locker. if you have a ford, then get an 8.8" traction loc with 31 spline axles. it'll handle up to about 650 hp or so.

 tires........bg goodrich drag radials.


if you're not, then you can go ahead and laugh at me now.

 :rofl
Title: Re: Differential mods for better traction
Post by: eagl on February 24, 2009, 10:42:07 PM
I'm not really going to do anything.  Well, I might put in a beefier front swaybar and rebuild my race shocks, but that's all I can do and still race stock class in SCCA SOLO2.  I dunno what the tire of choice for autox will be this year but I still have some 5 year old race tires that I have to scrub down to cords before I buy a new set.
Title: Re: Differential mods for better traction
Post by: Masherbrum on February 24, 2009, 11:31:57 PM
I never clicked on the link.   Knowing Pirate4x4, that is a joke with spare parts.  But then again, Pirate4x4 is a joke of website within itself.   

Lincoln Locked diffs are not that bad if done by a good welder.    Again, my buddy has a Buggy on Dana 60's with a T-Bird SuperCoupe engine, that is bored over.   He used to have the same drive train in a CJ-8 and ran the same H1 rims/tires.   He never broke the weld.   
Title: Re: Differential mods for better traction
Post by: moot on February 25, 2009, 07:02:21 AM
He welded the differential gears where they mesh.
Title: Re: Differential mods for better traction
Post by: Rolex on February 25, 2009, 09:24:32 AM
My vote for best line is: "wait, did you tig or mig weld it?"  :rofl
Title: Re: Differential mods for better traction
Post by: hubsonfire on February 25, 2009, 09:44:34 AM
Pirate's good for some entertainment now and then, although some of them apparently have too much free time.

(http://inlinethumb11.webshots.com/43978/2059412130104836601S425x425Q85.jpg)
Title: Re: Differential mods for better traction
Post by: stroker71 on February 25, 2009, 09:57:16 AM
I'm not really going to do anything.  Well, I might put in a beefier front swaybar and rebuild my race shocks, but that's all I can do and still race stock class in SCCA SOLO2.  I dunno what the tire of choice for autox will be this year but I still have some 5 year old race tires that I have to scrub down to cords before I buy a new set.


What kind of car ya got? 
Title: Re: Differential mods for better traction
Post by: eagl on February 25, 2009, 10:12:42 AM
What kind of car ya got? 

1998 TransAm, runs in F-Stock.
Title: Re: Differential mods for better traction
Post by: CAP1 on February 25, 2009, 10:19:32 AM
Pirate's good for some entertainment now and then, although some of them apparently have too much free time.

(http://inlinethumb11.webshots.com/43978/2059412130104836601S425x425Q85.jpg)

on top of that, that's actually a pretty crappy weld.
Title: Re: Differential mods for better traction
Post by: Shuffler on February 25, 2009, 12:10:38 PM
Ring welded to the pinion.......... to be exact.
Title: Re: Differential mods for better traction
Post by: CAP1 on February 25, 2009, 12:54:23 PM
Ring welded to the pinion.......... to be exact.

still a crappy weld though.  :rofl
Title: Re: Differential mods for better traction
Post by: Masherbrum on February 25, 2009, 01:48:49 PM
still a crappy weld though.  :rofl

Because it was a joke.   
Title: Re: Differential mods for better traction
Post by: CAP1 on February 25, 2009, 03:05:43 PM
Because it was a joke.   

i know.....but even so, if they're gonna picture their weld, they coulda made it pretty.  :aok

BTW...i'm just foolin 'round too......


and thanks for help in that other thread too. i talked to him, and should have a kick arse system the end of this week.  :aok :D
Title: Re: Differential mods for better traction
Post by: Bronk on February 25, 2009, 03:53:20 PM
ok, now THAT is funny.

if you really are doing anything though, don;t weld anything. go buy a detroit locker. if you have a ford, then get an 8.8" traction loc with 31 spline axles. it'll handle up to about 650 hp or so.

 tires........bg goodrich drag radials.


if you're not, then you can go ahead and laugh at me now.

 :rofl
After breaking multiple 7.5s on my 82 gt.... spider gears were welded. Never had another problem.... well burning off the inside tire on a tight corner is to some. :D
Title: Re: Differential mods for better traction
Post by: CAP1 on February 25, 2009, 04:23:48 PM
After breaking multiple 7.5s on my 82 gt.... spider gears were welded. Never had another problem.... well burning off the inside tire on a tight corner is to some. :D

i did that with my 83. it was an LX with a 5.0L 5 speed. no real power to speak of. i added full length headers, true dual exhaust, took the motorcraft holly junk off, and put a real holley on.....didn't like the duraspark dist., so i pulled that, and used a dual point dist from a boss 302. she only ran 13.8's on a 3.23(i think) rear.

 pulled into the burnout box,heated the snot outta the tires, lined her up, staged...tree comin down, i bring her up to 3200 or so(anything higher, and tire roast).....last yellow, sidestep the clutch, firewall it, and BABOOM!! the car rolled about 15 feet, with a nice new hole in the diff cover.   :rofl :rofl

 i couldn't get an 8.8 back then, so i went to currie ent., and got a 9".

 never blew the 8.8 in my 89 though...and i was launching her at 6100 on drag radials.
Title: Re: Differential mods for better traction
Post by: Bronk on February 25, 2009, 04:58:08 PM
Cap check PM. :aok
Title: Re: Differential mods for better traction
Post by: stroker71 on February 25, 2009, 08:42:34 PM
1998 TransAm, runs in F-Stock.

I use to run a street prepared car.  I ran the Kuhmo v700's....very good tire but nothing beats the Hoosiers for glueing you to the road.  I now just play around with an 03 mustang gt and I run on street tires. 
Title: Re: Differential mods for better traction
Post by: CAP1 on February 25, 2009, 10:09:00 PM
I use to run a street prepared car.  I ran the Kuhmo v700's....very good tire but nothing beats the Hoosiers for glueing you to the road.  I now just play around with an 03 mustang gt and I run on street tires. 

my 89 handled pretty well on eagle gt+4's.
Title: Re: Differential mods for better traction
Post by: SectorNine50 on February 26, 2009, 08:50:16 AM
Oh my god... That is almost as good as the guy who came up with the new turbocharging system that didn't need a turbo...

He figured that since the exhaust ran the turbo that compressed the fresh air... that he could skip a step and just pipe the exhaust directly into the intake manifold.  Needless to say his drawings and posts drew an absolute uproar from the other users... I gotta find that website, it was too funny!
Title: Re: Differential mods for better traction
Post by: eagl on February 26, 2009, 09:07:29 AM
I use to run a street prepared car.  I ran the Kuhmo v700's....very good tire but nothing beats the Hoosiers for glueing you to the road.  I now just play around with an 03 mustang gt and I run on street tires. 

Yea, the Hoosiers are the stickiest.  They didn't have any DOT tires in my size the last time I looked, so none of the F-Stock guys ran Hoosiers if I recall correctly.  Once they bite the bullet and go into street prepared though, yea almost everyone ran hoosiers.

I'll probably just take my old tires to the next race and see what everyone else in F-Stock is running.  It's funny, but my car is still probably very competitive even after 11 years because there aren't any reasonably priced V-8 cars on the road that can compete with the last model F-bodies.  Even the newest mustangs still can't keep up unless they get special mods or are special editions, in which case they jump up in class and run with the corvettes and RX-7s.

Title: Re: Differential mods for better traction
Post by: WWhiskey on February 26, 2009, 05:38:54 PM
funny pic, i know some guys who would fall for that!


as for traction lincoln lockers always worked for me, anything from a 10 bolt right up to rockwells
but if it is going to see some street us as well as strip time, i think the best bet these days is arb, air or electric lockers, they are simple plenty strong enough, and easy on the tires when not engaged!