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[ngrainqey]

does anybody know anything about these, might beable to get one thats all...
are they a straight bolt onto the omega or do they have a seperate bellhousing that bolts on so would have to swap it for the omegas?

thanks

[Marks DTM Calib]

Seperate bellhousing....how the hell are you going to get the electrics to work on it!

It is only a 4 speed unit by the way.

http://www.novak-adapt.com/knowledge/4l60e.htm

[ngrainqey]

lol i know it's 4 speed "GM4L60E"
it should be the same electrics except maybe the shape of the plugs shouldnt it?

thanks

[Marks DTM Calib]

lol i know it's 4 speed "GM4L60E"
it should be the same electrics except maybe the shape of the plugs shouldnt it?

thanks

I doubt its anything like the same.....

[ngrainqey]

lol i'll just have to try and "trick" the ecu
but might result in a bad changing, engine light gearbox lol
you really think the wiring will be different mark?
thought it might just be for example different shaped connecters

thanks

[VXL V6]

Use the 5L40 instead!

[ngrainqey]

but they're harder to get and more expensive?

[VXL V6]

If this is for your turbo conversion I reckon a Manual box would be a better bet.

Sassanach modified a few AR35's (4L30) to make them more 'towing friendly'. Not exactly sure what he did but may be worth PM'ing him.

[ngrainqey]

i quite fancy having the potential torque ability really then it doesnt matter how far i go really... maybe an auto v8 project but i'd rather get something i can bolt straight onto the omega engine and im not bothered wether its 4 or 5 speed (they did 4 and 5 speed gm boxes on the camaros)

[Kevin Wood]

Well, here's what I'd do:

Given that you've got a seriously modified engine in mind anyway I would ditch the OEM Engine ECU and use something mappable. That makes using the OEM auto gearbox ecu hard anyway, since it will lose its' communication with the engine, and, as said, adapting it to the 4l60 is not going to be trivial.

There are some guys here experimenting with a home made controller for the 4l60 that will talk to a Megasquirt. http://www.msgpio.com/forums/viewforum.php?f=4&sid=893c696023627ab08ade6f4d4d412dc7

It won't be straightforward but will allow you to tune and tweak it around your tuned engine and set it up exactly how you want. You will need to get your hands dirty, though. Very dirty.

Actually, I lied. What I'd do is to use a manual gearbox.

Kevin

[ngrainqey]

haha! kevin, i'd like to go manual but then it involves clutches.. the clutch pedal which i dont have in any of mine and then it requires a good solid gearbox.

i thought of the gm4L60E because i thought it might be easier to get to work (being gm and only really being quite alot higher torque rating)

didnt they use the 5L40E on the last 3.2's?

[Kevin Wood]

haha! kevin, i'd like to go manual but then it involves clutches.. the clutch pedal which i dont have in any of mine and then it requires a good solid gearbox.

i thought of the gm4L60E because i thought it might be easier to get to work (being gm and only really being quite alot higher torque rating)

didnt they use the 5L40E on the last 3.2's?

I personally think the manual route would be much less work, granted that you'd need to swap the pedals with a manual car and add a clutch master cylinder, change the prop, flywheel, etc.

The problem with using a different auto gearbox is that the way the ECU drives the actuators is tuned to the hydraulic system of the gearbox and the ratios it uses. Assuming that all the sensors and solenoids are broadly compatible you could end up, for example, with an ECU that doesn't shift "hard" enough for the gearbox, meaning it'll wear rapidly.

Of course the ECU might just decide it doesn't like the ratios in the new gearbox and go into limp home.

I think a gearbox controller that you can tune or an uprated autobox that's not electrically controlled (or just has crude lockup and overdrive solenoids to worry about) are the only feasible automatic options.

I believe there were Omegas with the 5L40E but not in this country, sadly.

Kevin

[philhoward]

Just go for the latest non-electronic gearbox you can find...

ZF 4HP22?  It did fine on the Wife's XJS... lovely box!

[ngrainqey]

haha! kevin, i'd like to go manual but then it involves clutches.. the clutch pedal which i dont have in any of mine and then it requires a good solid gearbox.

i thought of the gm4L60E because i thought it might be easier to get to work (being gm and only really being quite alot higher torque rating)

didnt they use the 5L40E on the last 3.2's?

I personally think the manual route would be much less work, granted that you'd need to swap the pedals with a manual car and add a clutch master cylinder, change the prop, flywheel, etc.

The problem with using a different auto gearbox is that the way the ECU drives the actuators is tuned to the hydraulic system of the gearbox and the ratios it uses. Assuming that all the sensors and solenoids are broadly compatible you could end up, for example, with an ECU that doesn't shift "hard" enough for the gearbox, meaning it'll wear rapidly.

Of course the ECU might just decide it doesn't like the ratios in the new gearbox and go into limp home.

I think a gearbox controller that you can tune or an uprated autobox that's not electrically controlled (or just has crude lockup and overdrive solenoids to worry about) are the only feasible automatic options.

I believe there were Omegas with the 5L40E but not in this country, sadly.

Kevin

you know when you tune the omega for example with the ar25 gearbox, what actually happens when you use too much power through it?
just cooks the oil or what?

[ngrainqey]

oh yeah, if your saying about using a none electronic autobox then what about the tremec gearboxes off the camaros and stuff?