Playing with the timing on the cams makes a huge difference.
I advanced my intake cams to the max and it feels like I strapped on a turbo. Maybe they were too far wetahdid to begin with but I'm happy.
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Why in the world are you guys trying to guess crank HP? You'll be getting a WHP number on a chassis dyno, that's about as precise as it gets... Why try to guess a number that you're just estimating from that? Especially when you don't have a crank HP baseline to begin with. The factory rated numbers are obviously way off... so you can't compare to the 290hp or whatever BMW marketed them as. There's probably over 100 dyno sheets from m60b40's and m62b44's on bimmerforums, that's what you'd want to compare your dyno sheet to, to see where the curve is in comparison to the two factory engines. The b40 always makes ~25-50 less torque then the b44 below 4k, that's where it'll be interesting to see where this hybrid engine fits in.
Originally posted by The Dark Side of Will View PostHe said previously that he was extrapolating to crank numbers, so it's +~40 HP, not +65+.
An M60B40 is rated at 280 HP, so +10% for displacement comes to 308 and +5% for compression increase comes to 323.
Is there any diddling available to be done with cam timing? I understood that the M60 had a pretty wide lobe separation angle, which could be closed up a bit for better top end with stock displacement and definitely should be closed up a little bit to keep top end with the increased displacement.
Anyway, I'm guessing you'll see ~270whp until you get it tuned, then ~290whp depending on how well it's tuned, how well sorted the engine is (timing, piston ring condition, etc...), and what dyno is used.
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He said previously that he was extrapolating to crank numbers, so it's +~40 HP, not +65+.
An M60B40 is rated at 280 HP, so +10% for displacement comes to 308 and +5% for compression increase comes to 323.
Is there any diddling available to be done with cam timing? I understood that the M60 had a pretty wide lobe separation angle, which could be closed up a bit for better top end with stock displacement and definitely should be closed up a little bit to keep top end with the increased displacement.
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Serious question: Why did you vote the way you did? If you thought it would make 320+, why?
Just curious. My guess is stock M62 power, but that's just because there really are no power adders. Tune will help, but not significantly I don't think. I think stock M62 was 281hp at the crank, so that would be like 65+ HP gain to hit the 320 mark.
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I'm assuming for your latest poll, you are using crank HP numbers rather than wheel HP. Are you just going to factor in a certain percentage to drivetrain loss and add that back in when you do the dyno? or will you be doing an engine dyno?
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Emery cloth and ATF in a circle motion,, also in haven't driven it since that last couple Sundays ago been working to but the little parts it needs to be really drivable .and I don't remember having any issues with the separator.
The only think I can think of is where you have to make your own gaskets for the upper covers where they meet the lower covers. Cause the M62 HG don't go all the way like the M60 HG does. I'm probably missing something else but can't remember right now.
Currently no chip, just some 404 DME out of a 94 740 and it runs just they way I ran it called for it to smoke a little due to a leaky valve cover gasket. And I fucked up when I installed the engine and broke the nipples off the back of the intake so the FPR was just capped off for the time being causing it to shoot flames when you let off the throttle too fast.
I will be taking the car down to Metric Mechanics and having the m tune it with a chip and basically they will redo the whole DME from fuel maps and such to deleting the IACV n no essential things. And I will take another ECU down with that I can have then burn or make a daily tune for it too. So one DME for power n the other for economy you can say.
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How's it running?
I have a few questions if you don't mind...
How'd you clean the pistons so well without damaging the cylinder bore surfaces? I'm not sure how sensitive the bore surface would be to emery cloth, maybe it's not even an issue.
Also, did you have to do anything about the oil separator valve, as far as it being different between the m60 and m62? I remember Garey said he had to bend the tube on his, but as far as I can see, they are the same part number.
Did anything else come up during the hybrid build that wasn't bolt-on or straight forward?
What do you plan to do for a tune, and what chip are you currently running? How is it running on that chip?
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Back story first:
Fired up the car and it had a slight coolant leak from the valley pan gasket. Didn't seem that bad until we got the car out of the garage. Ended up saying fuck it and let him at least make it move for the first time ever.
Pulling it out of this ghetto ass garage, a gaggle of rabid stray dogs came out of NOWHERE and started just attacking his tires. I thought I was recording when this was happening but it turns out I wasn't. Anyway, here's a shitty video of a shitty launch.
Congrats on getting it running Jeremy.
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Now that I have it running still gotta sort through some things and I'm going to make another adapter cause I'm not favoring mine. But as soon as I iron out the kinks it will be tuned an I will show you guys the dyno vidz and the numbers it produces ;-)
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Awe man you got me drooling waiting for my trans for my m60 swap. Glad to see you got it up and running!
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Installed those today and set everything up to drive, went to go drive it and found out I had a shit ton of a coolant leak out of the valley pan and also out of bottom of the thermostat. Will be fixing them around noon todayBut as for the 2min drive I would say it was a tease of what's in store for me n this car lol
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Made this today at work (not finished) my own universal coolant overflow just need to weld a cap on and drill a hole
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