M62B44,M60B40 heads & cams, Eaton M112 (now with NOS)

[Mykk540i/6]

I wanted to compare the piston tops of the M60B40:









They sit roughly. 035" out if the hole @ TDC and have no dish!

M60B40 compression ratio calcs:



I'd really like to see some M62 chambers to get an accurate M62B44 compression calc

This also means that the M60B40 has the more desirable quench/squish height compared to the M62.

If the M62 combustion chambers are indeed larger CC... this, combined with lower piston height and the piston dish means the compression is much lower then advertised.

[wworm]

I was going to assume you were either retired or insane to try and get the engine together installed and tuned in 5 weeks.

Very stoked for this build

[Mykk540i/6]

I should have been clearer, the car will retain it's current N/A M60B40 for the race event in january. With just a few more new mods.

If I had more free time I'd attempt to get the new engine together, installed and running in time. But with my current work schedule there is just no way.

[Pootis]

An engine of an unproven spec, thats out of the car and hasnt been run yet, booked into an event 5 weeks away....

I can't decide if youre brave or stupid, but I salute you!

This may be sig worthy lol

[CorvallisBMW]

Cool, sub'd!

[alistairolsen]

An engine of an unproven spec, thats out of the car and hasnt been run yet, booked into an event 5 weeks away....

I can't decide if youre brave or stupid, but I salute you!

[The Dark Side of Will]

I found there to be roughly 4cc of volume in the piston tops.

The only MLS head gaskets I could find available for the M62B44 is 1.74mm thick. So now I have enough information to calculate compression ratio:



...not quite the 11:1 compression that most believe the M60 heads on M62 block to produce. But it's good news for me using the supercharger.

I haven't run the numbers, but I @$$ume that lack of awareness of the 4cc dish is what led to the initial estimate of 11:1 compression.
Have you run the numbers yourself to verify?

[Mykk540i/6]

... i assume that is from an engine in the ford era?

You are correct. The intake manifolds/intercoolers are stamped FoMoCo. I personally am more of a GM guy myself :-P

[Mykk540i/6]

Are you using Toolman’s kit to mount the super charger?

Yes, he's got them made and waiting to ship out..just waiting on my final payment, I just need to recoup the holidays financial blow.

[dmjensen]

Those are E46 M3 S65 exhaust manifolds. The cylinder spacing is perfect for the M6x, the ports and flanges are too but a few of the flanges need to be re-clocked to bolt up to the M60 heads. There is a high chance they won't even fit in the body of the car.

I hope they do fit for you, they look awesome. They also look like equal length so good performance gains ;)

Are you using Toolman’s kit to mount the super charger? I’ve been in touch with him about buying one but I think the blower setup I’m going to use won’t bolt to it so I’ll just fab up my own.

[JoeMadoo]

Awesome work so far.

[36brua]

. Or even go way left field and put it in an open fender rat rod roadster.
^^^^^ this

[Mykk540i/6]

I've registered the car for a drag event at the end of January in Tucson Az (215 miles from me). The Roadkill Zip-Tie drags, something I've been wanting to do for a while.

I was hoping to have the new Speeduino system up and running & tuned in time, but that doesn't appear to be realistic in that time frame. So instead I'll run the car with the 404DME running a slightly modified version of the Alpina B10 tuning.

I do want to go in and re-time my cams before the event, right now I've got the intake cams -6 degrees retard from factory spec and exhaust on factory spec. Hoping for some more higher RPM pull. Instead it just took away too much everywhere. I'm considering +4 degrees intake & factory exhaust. More compression & more overlap. I attempted this once before using just a dial indicator and couldn't get it just right. Now I'm equip'd with the M60 timing blocks and can set the crank angle where I want it and align things via the blocks.

I also want to wire in the MSD DIS-4 and mount the two waste spark coils, then make the ignition leads to each cylinder.

[Mykk540i/6]

I started this build with the intention to replace the tire & old M60B40 in my E34 540i/6:





..and it may end up in this car for a while. But the car is equally old & tired. I do dream of putting the 540i/6 drivetrain in an E30. Or even go way left field and put it in an open fender rat rod roadster.

...What headers are those?

Those are E46 M3 S65 exhaust manifolds. The cylinder spacing is perfect for the M6x, the ports and flanges are too but a few of the flanges need to be re-clocked to bolt up to the M60 heads. There is a high chance they won't even fit in the body of the car.

[flyboyx]

sub'd

kind of excited about the super charger. i assume that is from an engine in the ford era?


i wonder what that would be like on an s62....