Hey guys, here's a few pics from my latest project. I started putting this engine together to go into my BMW E34 540i/6. But as I got moving along with it I shifted gears and decided to go an entirely different route. I want to build an old school hot rod based around the '23-'27 T-bucket, I'm picturing a modded drop frame. Drop solid front axle. Jaguar independent rear end. BMW V8 & BMW Getrag 6spd manual trans. Track-T, deluxe or turtle deck T body. 32 or 33 x 17.5 thru 22x15 (or bigger) rear wheels.
The current project:
Late 90's BMW 4.4L M62 shortblock with RaceWare head studs:
Early 90's 4.0L M60B40 from a 7 series to donate it's heads & cams, double roller chain timing set up and other misc hardware:
Double timing gears, idler & guides on the M62:
M62 pistons sit +.025" above deck, found roughly 4cc of dish in piston crowns.
Cylinder heads back from machine shop for rebuild:
Measured 52cc in chamber volume:
Belt driven intake manifold, Late 90's Jaguar Eaton M112 supercharger (GenV), also using the jaguar water to air intercoolers and injectors/manifolds:
Setting up cam timing:
Found the O.E. cam timing made for an 108° ICL & 108° LSA with 211° Int / 206° Exh durations @ 1mm valve lift. 9.65mm Int lift/ 9.4mm exhaust lift. I've now set cam timings for a more boost friendly 110° ICL & 112° LSA
In order for the supercharger to sit on the adapters for the BMW heads it needed a few mods:
Pulled off, flipped and pressed back on pulley:
My measured specs:
Engine: 92mm bore x 82.7mm stroke, 143mm rods.
Pistons: +.025" above deck, 4cc dish
Heads : 52cc chamber volume
Head Gasket: MLS 1.74mm compressed thickness
Static compression: 9.6:1
Naturally aspirated dynamic compression using modified IVC degree: 7.94:1 (at my living altitude)
Target boost with Eaton M112: 8-10psi
Plugging all my info into a dyno sim:
The current project:
Late 90's BMW 4.4L M62 shortblock with RaceWare head studs:
Early 90's 4.0L M60B40 from a 7 series to donate it's heads & cams, double roller chain timing set up and other misc hardware:
Double timing gears, idler & guides on the M62:
M62 pistons sit +.025" above deck, found roughly 4cc of dish in piston crowns.
Cylinder heads back from machine shop for rebuild:
Measured 52cc in chamber volume:
Belt driven intake manifold, Late 90's Jaguar Eaton M112 supercharger (GenV), also using the jaguar water to air intercoolers and injectors/manifolds:
Setting up cam timing:
Found the O.E. cam timing made for an 108° ICL & 108° LSA with 211° Int / 206° Exh durations @ 1mm valve lift. 9.65mm Int lift/ 9.4mm exhaust lift. I've now set cam timings for a more boost friendly 110° ICL & 112° LSA
In order for the supercharger to sit on the adapters for the BMW heads it needed a few mods:
Pulled off, flipped and pressed back on pulley:
My measured specs:
Engine: 92mm bore x 82.7mm stroke, 143mm rods.
Pistons: +.025" above deck, 4cc dish
Heads : 52cc chamber volume
Head Gasket: MLS 1.74mm compressed thickness
Static compression: 9.6:1
Naturally aspirated dynamic compression using modified IVC degree: 7.94:1 (at my living altitude)
Target boost with Eaton M112: 8-10psi
Plugging all my info into a dyno sim:
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