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View Full Version : Neon 420 trans holdup?


spoolinhard
11-29-2007, 12:35 PM
Are these things capeable of being built to hold 400-500 whp or are they still shaky?
tvanlant
11-30-2007, 01:22 PM
which trans are you asking about?
RoadWarrior222
11-30-2007, 06:20 PM
31TH can be built up "easy", same as A413
spoolinhard
12-02-2007, 11:41 PM
I guess I am talking about the neon auto. Is that the 420?
RoadWarrior222
12-03-2007, 12:24 AM
The motor is the 420A, if it's pre 99 it probably has a 31TH, if it's a 2nd gen it either has the 31TH 3 speed, or 41TE 4 speed.
Pimp_Daddy_Patty
12-28-2007, 10:18 AM
A neon does not have a 420A, 420A's have forward facing exhaust ports.



Mitsubishi (DSM) Engine code: 2.0L DOHC = 420A
Mitsubishi (DSM) Engine code: 2.0L DOHC Turbo = 4G63
Chrysler Engine code: 2.0L DOHC = ECC
Chrysler Engine code: 2.0L SOHC = ECB
Chrysler Engine code: 2.0L SOHC Magnum = ECH
Chrysler Engine code: 2.4L DOHC N/A = EDZ
Chrysler Engine code: 2.4L DOHC Turbo = EDV/EDT



A 3 speed can hold that much power if built right. A 5 speed will hold but will likely sheer gears with flat shifting.
spoolinhard
04-04-2008, 01:46 PM
the 3 speed is what Ive got. Any thread on how to build them?