Spare M42 refresh/rebuild

[e30s50dan]

I have a 4.27LSD I'm going to try. It's not much a street car as it will be a track ride

[ccsdo5]

The 3.73 is perfect for a turbo m42, that's what I have now in my car and it's great but I'm trying to find a 4.45 so I can ruin my life even more

[roguetoaster]

The 3.73 is perfect for a turbo m42, that's what I have now in my car and it's great but I'm trying to find a 4.45 so I can ruin my life even more

4.45 is just fine for a N/A street car. After running one for well over 2 years I think 1st is too short and 5th is still OD. It really does bring out the fun parts of driving an M42.

[fresh_TD]

4.45 is just fine for a N/A street car. After running one for well over 2 years I think 1st is too short and 5th is still OD. It really does bring out the fun parts of driving an M42.

With a 4.45, you sit at 6900rpm at 2mph in first gear..lol

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[roguetoaster]

With a 4.45, you sit at 6900rpm at 2mph in first gear..lol

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Well, that's a valid point, but at least I can't get over 30MPG anymore.

[kwill22]

I’ve got a 3.73 for sale

I have a buddy with one local to me.

My city is mostly highway so a 3.75 would be ideal. Plus i can't really sustain anything above 100 without getting that voice in my head saying revs too high. Lol not that i want too but id like to see what she can do.

[roguetoaster]

A healthy M42 can take high RPM for hours at a time, or at least in an endurance racer it can.

[e30s50dan]

^^. Will see in the spring when I track my m42 ��

[ccsdo5]

4.45 is just fine for a N/A street car. After running one for well over 2 years I think 1st is too short and 5th is still OD. It really does bring out the fun parts of driving an M42.

Yeah but I'm currently turbo M42 so a 4.45 will suck on the street BUT it'll make it so I can drift 3rd gear.

The M42 and SR20 have similar gear ratios with their transmissions and a big thing to do is put a 4.6 on an SR20 car to drift in third gear. so a 4.45 should give about the same wheel speed with getrag 240.

If you go to Tomei USA's website on the left side there is a wheel speed calculator so you don't have to do that math to figure what rear end will work best with your car.

http://www.tomeiusa.com/

[fresh_TD]

Guys.. I'm getting ready to post all these parts for sale. If you are interested in anything, feel free to PM or shoot me a text 850-226-1959. I haven't had the time nor do I have the time right now to complete this build.