is vs m20
- Thread starter sarvesh nair
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fabianyee
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M42 halfcuts are now fetching high prices, wonder why..... Same price or more expensive than the M50 halfcuts. I think there are more ppl converting from M40/M43 to M42....
Reliability - it's almost PPAG... (Pump petrol and go).. Just needs routine maintenance.
Have done numerous trips with the M42. no worries.
Few occasions of high temp too cos didn't check radiator water level but the engine still held strong...
No timing belt to worry about cos running timing chains....
Parts - most wear and tear items are the same with the M40/M43...
May need to order certain parts only if major engine work is required ie engine overhaul. Other than that, most parts are easily available from the parts shop.
Reliability - it's almost PPAG... (Pump petrol and go).. Just needs routine maintenance.
Have done numerous trips with the M42. no worries.
Few occasions of high temp too cos didn't check radiator water level but the engine still held strong...
No timing belt to worry about cos running timing chains....
Parts - most wear and tear items are the same with the M40/M43...
May need to order certain parts only if major engine work is required ie engine overhaul. Other than that, most parts are easily available from the parts shop.
i'm driving e30 m40 , converted to m20b25 but with no paper. thinking to change back to 1.8 and m42 is seem a great choice. am currently sourcing the engine and see whats the option i can have.
a quick quest mr.fabian ; u pump 95 or 97? and as i not a technical person i might need advices from u in the future when the project is started. u seem know-a-lot of this m42.. can ah? :105:
a quick quest mr.fabian ; u pump 95 or 97? and as i not a technical person i might need advices from u in the future when the project is started. u seem know-a-lot of this m42.. can ah? :105:
fabianyee
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My M42 seldom use RON97 even for track days... Can't feel anything extra using 97 with this car.. Or maybe my butt not so sensitive...
Anyway, the last i dyno the car with RON95, it got 126rwhp.... probably about 150-155hp at crank...
Anyway, the last i dyno the car with RON95, it got 126rwhp.... probably about 150-155hp at crank...
fabianyee
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iCe;608341 said:
automatic or manual???... E36 318is manual uses a 3.45 final drive... automatic gearbox uses 4.45.... so 4.10 is neither here nor there...
and E36 rear diff is a different housing from the E30.... unless it's an E36 ti hatchback, then the rear diff housing is the same with E30 cos the ti uses the E30 rear suspension.. Same case with the Z3...
fabianyee
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iCe;608418 said:its a manual LHD. oh i'm not aware of E36 IS original diff; i'll double check with them.
not sure its the hatchback version or not. any idea how to check its a hatchback or sedan? i only see its front-cut..
Thanx.
The dashboard of the hatchback is somewhat similar to the E30.... especially the aircon vents... anyway the rear diff housing is visually very different... if u have seen E30 rear diff, one look and u'll know aledi.
allready start out the project, currently send the body to do some body de-rusting.. got few hole here n there that i dont aware of before, only see them after taken out the engine. so might get it done too.
mr.fab,i need to ask u about the meter, what meter are u using? can i use the e30 m40 meter? is the RPM gauge will be accurate if i using the e30 m40 meter?
thanx..
mr.fab,i need to ask u about the meter, what meter are u using? can i use the e30 m40 meter? is the RPM gauge will be accurate if i using the e30 m40 meter?
thanx..
guys; i got this E36 m42 halfcut with manual gearbox. am doing conversion to my e30 m40 4-doors (currently running m20b25 manual).
question ; can i use this E36 m42 GB to my car or do i need to find e30 m40 manual GB to match with the M42 engine? which will do best?
Thanx.
question ; can i use this E36 m42 GB to my car or do i need to find e30 m40 manual GB to match with the M42 engine? which will do best?
Thanx.
so as i already have the E36 manual GB, might as well i use it right?
how about the gear linkage, is the placement ngam ngam or need to modi?
the ratio u mean is the rear axle right? am currently running 3.73, is it ok? not to heavy right?
how about the gear linkage, is the placement ngam ngam or need to modi?
the ratio u mean is the rear axle right? am currently running 3.73, is it ok? not to heavy right?
fabianyee
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iCe;614492 said:
the gear linkage needs to be shorten.. then again, you're now running M20 so not sure what needs to be done to linkage and longshaft.... my mods were for M40 drivetrain...
With the 3.73 mated to the E36 gearbox, your top speed would be 200kph at 6500rpm.... stock E36 318is manual comes with 3.45 rear diff...
thanx mr.fabian. you're using m40 gearbox instead of m42 gearbox? can i ask why?
i was thinking no to re-use my current linkage & longshaft as i want to sell the engine in complete set (engine + gearbox + lingkage + longshaft)
so i think i'll be using the linkage from m42 (need to shorten it) and source another set of shaft tu match up with the m42 gearbox.
i was thinking no to re-use my current linkage & longshaft as i want to sell the engine in complete set (engine + gearbox + lingkage + longshaft)
so i think i'll be using the linkage from m42 (need to shorten it) and source another set of shaft tu match up with the m42 gearbox.
pussy
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Ice... i see you are confused now...
as i understand, the half cut is a M42 e36 manual, with long shaft,etc...
you can plonk in the whole engine, gearbox, longshaft, gear linkage.. no problem, no cutting..only works is the engine side, exhaust headers, mountings, air box and wirings...
what Fab is saying, you can use the gearbox that came with the halfcut, only the rear diff needs to be changed to match ratio of the box final drive which is 1:1..
the e36 diff wont be able to fit in, unless you swap the innards of the diff.. so look for a e34 medium housing which is a 3.45 or look for a e28 one which is a 3.25 or a 3.15..
it terms of how you do it, a good mechanic will be able to sort it out for you, BG did this swap for this owner here without much fuss, go have a chat with them..
happy modding
as i understand, the half cut is a M42 e36 manual, with long shaft,etc...
you can plonk in the whole engine, gearbox, longshaft, gear linkage.. no problem, no cutting..only works is the engine side, exhaust headers, mountings, air box and wirings...
what Fab is saying, you can use the gearbox that came with the halfcut, only the rear diff needs to be changed to match ratio of the box final drive which is 1:1..
the e36 diff wont be able to fit in, unless you swap the innards of the diff.. so look for a e34 medium housing which is a 3.45 or look for a e28 one which is a 3.25 or a 3.15..
it terms of how you do it, a good mechanic will be able to sort it out for you, BG did this swap for this owner here without much fuss, go have a chat with them..
happy modding
yeap, i am confused. haha.. need more reading and study.
btw BG is BlueGreen rite?i think i came across their website before.might pay them a visit to get a clearer picture.
anyway thanx a lot mr.pussy and mr.fabian, need a lot of guidance as this is my first car project
btw BG is BlueGreen rite?i think i came across their website before.might pay them a visit to get a clearer picture.
anyway thanx a lot mr.pussy and mr.fabian, need a lot of guidance as this is my first car project
fabianyee
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what I was saying is that I was using the M40 gearbox and drivetrain after converting the engine from M40 to M42...
Then the M40 getrag240 started to show sign of giving way... So it was either to 1)rebuild it, 2)sourced for a similar used Getrag240 gearbox, 3)E36 M50 manual gearbox.
option 2 and 3 were about same price.... So I opted for 3 instead....
Not sure how your E36 drive train match with the E30 chassis especially the longshaft. and that your E30 is currently running M20 engine and drivetrain, so it's a different story altogether. have fun getting all the measurements for various long shaft.
The E36 Getrag250 gearbox is about 1 inch longer than the E30 Getrag 240 gearbox. i have my way to mod a little without cutting the shaft or looking for a compatible length shaft.... Solution was found from overseas forum.... u want technical info, best to ask those overseas fellas who are more hands-on with DIY repair and mods. Here mostly pay mechanics to do one.. hahaha
Then the M40 getrag240 started to show sign of giving way... So it was either to 1)rebuild it, 2)sourced for a similar used Getrag240 gearbox, 3)E36 M50 manual gearbox.
option 2 and 3 were about same price.... So I opted for 3 instead....
Not sure how your E36 drive train match with the E30 chassis especially the longshaft. and that your E30 is currently running M20 engine and drivetrain, so it's a different story altogether. have fun getting all the measurements for various long shaft.
The E36 Getrag250 gearbox is about 1 inch longer than the E30 Getrag 240 gearbox. i have my way to mod a little without cutting the shaft or looking for a compatible length shaft.... Solution was found from overseas forum.... u want technical info, best to ask those overseas fellas who are more hands-on with DIY repair and mods. Here mostly pay mechanics to do one.. hahaha
