4g61t.org

Just wanted to put up a quick thread asking if any body else has trouble with 4g61t gearboxes? Is it a common problem for them to blow, i've been through two in under two months?

Stock engine?

_________________
93 Mitsubishi Expo LRV 1.8/manual
95 Eagle Summit DL Coupe 1.5/manual
01 Mitsubishi Mirage ES Sedan 1.8/manual

The stock transmission mated to a 4g61t motor is the KM210 tranny. Are you at or around stock power level, and under what condition did the transmissions go out on you?

_________________
Good stuff - trucks bring it!

Short answer: yes

_________________
91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

http://www.facebook.com/captaintonus

Weren't some 1.6L engine in other markets (Asia/JDM) matted to KM206 tranny's? I ran a sonata km210 last year on a 2L with a gt30 turbo, never had any issues, but I never launched the car either.

_________________
05 wrx wagon
99 Benz ML 320
91 eagle summit swapped - 6/4 bolt combo
94 Audi s4 - sold
88 Eagle Vista Turbo LX sedan, RIP

I grenaded a shep rebuilt km210. It was neato

_________________
_____________________
1993 single turbo supra
2000 Lexus sc300
2016 ram 1500

I've only broken the 3rd gear shift fork on mine, and I've beat the shit out of it...not sure what you guys are doing

_________________
49 International KB-2
72 Dodge Colt
73 Dodge Colt (Project)
84 GMC K3500
85 Dodge D50 Diesel Swap
90 Mighty Max V6
89 Mirage Turbo
94 Mighty Max
99 Montero

I generally just blow Trannys.

_________________
89 Mirage Turbo-Money pit
99 Jeep Cherokee-1/4 Epic
01 Cobra-Too Thirsty
72 Dodge-Pedo'van

Remind me what corner your picking them up at so I dont have that problem too. Should be the other way around!

My Summit LX sedan has a KM206 in it.

Yea. recieving a blow is borderline ok, especially if you didnt know, but knowingly blowing trannies is very homosexual

_________________
87 Starion, PROJECT. With the CATAPLT COLT engine, Thanks Craig, (GSX)
92 Eclipse GSX (Dead)
89 Colt GT (AWD Swap) H1C
88 Cummins Suburban
69 Cutlass convertible
78 Arrow G54B Swap, Celeste makeover. (MOD 2016 Veteran)

I am around stock power, maybe slightly higher, I have raised the boost pressure slightly but that is about it, ive blown two of them in under 4months. i live in newzealand so it is a jap import? maybe slightly different to the mirages you guys get over in the states? maybe its just my driving style?

Are you blowing up the gears or the differential? Also, what kind of gear oil are you using? Maybe it's just bad luck, but it could also be driving style. I would assume if you are around stock power level then it's not driving style related. The only time I blew a transmission was when a dowel pin flew out of the flywheel, which was due to rust working it out under normal driving. I also lost a 4-speed that went by natural causes on a 200,000+ mile motor.

_________________
Good stuff - trucks bring it!

Im hoping it's only badluck because i have just put in the 3rd gearbox.
The first gearbox it was 2nd gear, second one was the diff

the km210 should say km210 on the bottom.

_________________
05 wrx wagon
99 Benz ML 320
91 eagle summit swapped - 6/4 bolt combo
94 Audi s4 - sold
88 Eagle Vista Turbo LX sedan, RIP