Gear set for drag racing...
- Thread starter CWiLL
- Start date
shane02pro5
25ish_psi
- :
- New Caney TX
The GTX 4th gear is supposed to be dis-continued or unavailable. Most were replacing 3rd & 4th for strength and 5th for top speed. Now I only see 3rd and 5th being replaced. Is 4th not a potential problem?
slowmotionmsp
Member
- :
- Titanium 2003.5 MSP
I have a slightly used (2000 miles only) GTX 5th gear, if anyone wants one, PM me, please? Thanks.
shane02pro5 said:
hi guys , i currently run a straight cut gear similar to the par 3rd gear after i blew over 7 stock 3rds , being japanese GTX or Aust. ones...
the 4th geards i dont beleive to be any stronger ,i have several gears on my shelf , most of them GTX ones from used GTX 4wd boxes, i also have about 3 sets of 5th gear , which a .717:1 and are really good for top end and freeway RPM,. i run the 4.105:1 final drive and with this gear i get 2750rpm at 60mph(100k) on 17 inch mags
if anyone wants to purchase any gears let me know i have so many, i have about 7 spare sets of 3rd gears with no damage.
i now run a mazdaspeed 4 spider clutchpack LSD , which i have had a billet housing made as i split it similar to the protege guys, this is not the same diff at all its an old motorsport item , i havent blown 3rd gear sicne the straight cut fit , here is a pic of them below..note the bits next to the gears are the insides of the 1.5 way LSD
straight cut 3rd is the only way to go.
PS - this is in my 323 BF 87 wagon which runs a forged BPT with a gt3071 turbo, its done a 12.34@123 on toyo semi's.
the 4th geards i dont beleive to be any stronger ,i have several gears on my shelf , most of them GTX ones from used GTX 4wd boxes, i also have about 3 sets of 5th gear , which a .717:1 and are really good for top end and freeway RPM,. i run the 4.105:1 final drive and with this gear i get 2750rpm at 60mph(100k) on 17 inch mags
if anyone wants to purchase any gears let me know i have so many, i have about 7 spare sets of 3rd gears with no damage.
i now run a mazdaspeed 4 spider clutchpack LSD , which i have had a billet housing made as i split it similar to the protege guys, this is not the same diff at all its an old motorsport item , i havent blown 3rd gear sicne the straight cut fit , here is a pic of them below..note the bits next to the gears are the insides of the 1.5 way LSD
straight cut 3rd is the only way to go.
PS - this is in my 323 BF 87 wagon which runs a forged BPT with a gt3071 turbo, its done a 12.34@123 on toyo semi's.
GTXWGN said:
You must be doing something wrong because we have so many cars down here in PR running over 400whp and 10-9 second 1/4mile times and +129mph traps. This is where they start to fail after some abuse.
Of course, straight cuts is the way to go...but...whats the cost of them??
igdrasil said:
yeah guys its loud , but u can choose when to use it,,,when someone wants to race u just go to 3rd and they know u mean business and back off hehe
it was around 600NZ for the gear , and the PAR ones are 750 a pair...they are 1.24:1 ratio.
the lsd u cannot buy anymore, this one has a billet case made from solid billet steel alloy, its been nitrided aswell and shimmed up , it will never blow its just so beefy i cant see it going anywhere , i was running a welded up locker..
i dont know why i keep blowing 3rds it was just how it went, i dont have any issues anymore so it was worth it..
i know my car can go faster i have only done a 2.06 60foot so far , i just need some decent slicks and im sure the MPH will go up to over 126 and be in the 11's once i sort it all out, the 12.3 was full street spec.
