Originally posted by fporro
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A 24-valve M20
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1988 325ix Diamond Schwartz/Black (Izzy)
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Originally posted by fporro View Postand oem dual valve pistons, instead of e36 units ?
Originally posted by stonea View PostI would definitely be down. $2,500 isn't even that bad of a price, hell a Stage 3 M20 head from VAC is $2,599. I doubt you'd find 99 other people to jump in, AND go through with it though.
It still uses the stock intake and exhaust by looks of it (id hope not) which may introduce constraints that limit the port layout effectiveness compared to more modern designs. if it doesnt then its no chance in hell of it being 2500 otherwise where do i pay?
I’d say the biggest impediment to power on the m20 is the intake manifold, IMO you’ll find the intakes limits before you reach that of the head once you add a little cam into it and massage it with a die grinder. There isn’t much you can do to the stock intake to improve it either except throw it in the bin. So youd need to do this with the 24V version to
Then the fact that you'd have difficulty getting different cam profiles, it wouldn't have any vanos system, it’s a 1980’s 4V design so its probably going to be inferior to more modern engines.Last edited by digger; 11-22-2015, 02:51 PM.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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My read of this is....$250k for "R&D" does not include the cost to produce 100 heads but gets you production ready.Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com
https://www.r3vlimited.com/board/sho...86#post4944786
Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
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My conversation with RD about 24V heads were brief but I'll enquire further while placing 2nd group buy of headers.
I'm not the most technical e30 guy, so how about you guys making a list so I can inquire about those things instead.
Was told "they needed further development at about 250K"
As far as price, I just divided 250K by 100 units, (75 = $3333 and 50 = 5000 ea)
Aloha :)
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Originally posted by fporro View PostMy conversation with RD about 24V heads were brief but I'll enquire further while placing 2nd group buy of headers.
I'm not the most technical e30 guy, so how about you guys making a list so I can inquire about those things instead.
Was told "they needed further development at about 250K"
As far as price, I just divided 250K by 100 units, (75 = $3333 and 50 = 5000 ea)
Aloha :)Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com
https://www.r3vlimited.com/board/sho...86#post4944786
Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
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Originally posted by jeffnhiscars View PostMy read of this is....$250k for "R&D" does not include the cost to produce 100 heads but gets you production ready.
its never going to happen so just a bit of fun really. maybe 10-15 years ago was the time if ever89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Originally posted by LJ851 View PostAgree 100% with digger.
I'd rather see an aluminum M20 block than something that bmw effectively already designed and produced in large quantities.My Garage
2001 Z3 2.5i Steel Gray/Black (Lexi)
1988 325ix Diamond Schwartz/Black (Izzy)
1989 325i Cirrus Blue/Houndstooth (Stitch)
Feedback
Instagram: Stone.Hopkins
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put me on list
98 more people to go!
Originally posted by stonea View PostI would definitely be down. $2,500 isn't even that bad of a price, hell a Stage 3 M20 head from VAC is $2,599. I doubt you'd find 99 other people to jump in, AND go through with it though.feedback http://www.r3vlimited.com/board/show...32#post4540332
1972 2002 Chamonix
1984 325e Hennarot (M20B31)
1988 325is Bronzite Time Capsule
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Originally posted by stonea View PostI would kill for an aluminum block M20, I know theres a company that CNC's blocks for Muscle Car guys.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Originally posted by nando View Postbetter off using an M54 or N52 that's already an alloy block from the factory. a custom billet block would cost a fortune..89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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As seen in the video poster earlier, people have put 24v heads on m20's, usually because the class they race in has only one restriction in engine modification, you keep the stock block.
In all reality a properly built 12v head and supporting engine mods will produce more power than the e30 chassis can make use of, but it would still be damn cool to find an old ragged out e30 in some barn and find it has the unicorn RD 24v head on it.
2012 MCSCC/NSSCC CP class champ
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