Originally posted by Mr Deagle
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My M10 Turbo (warning to 56k)
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Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205
OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827
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Originally posted by Jean View PostPlease explain this - " used custom 86mm crank and 92mm mahle pistons, but I have serious problems with cracking blocks."
I have custom build 2,3l m10 engine in my 1985 318i. The engine has custom made 86mm stroke crank shaft(some 50 of those cranks were made in Finland on late 80's and early 90's). Block is bored to 92mm(piston are orinally ment for vw aricooled boxer engine). I've build that engine combination twice, both times my block has cracked, extreme bore makes block flexy and heat exapsion makes the head bolt holes(yes head holes, not cylinders) to crack to coolant passages.
I'm planing to use "antique" m10 block from 1970's, it has same dimensions but it weights like 15kg more than 1980's 318i block or reduce bore to 90,5mm, but with 86mm stroke crank and 90,5mm bore wouldn't allow me to use high rpms.
After I find combination that will hold together, I'll be charging that stroker...Current:
BMW 320i 2d 2.0 m20 -88
BMW 325i Cabriolet 2.5 m50 -88
BMW 316i touring 1.6 m40 -90
BMW 320i 4d 2,2 m54 -01
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Originally posted by Rocla View PostStock bore of 1,8l m10 engine is 89mm
I'm planing to use "antique" m10 block from 1970's, it has same dimensions but it weights like 15kg more than 1980's 318i block or reduce bore to 90,5mm, but with 86mm stroke crank and 90,5mm bore wouldn't allow me to use high rpms.
After I find combination that will hold together, I'll be charging that stroker...Need a Turbo manifold? We have them in stock- Click here---> http://rapidspoolindustries.com/
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E-mail Panayiotisx2@gmail.com
Dyno vid http://www.youtube.com/watch?v=C7aM7..._order&list=UL
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the m10 block cant accept M3 sized pistons, unless you get a good block, im assuming that that is the problem, we will have to wait for what he has to say'88 528e /// '88 M5 /// '89 951 /// '98 E430 /// '02 M5
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Originally posted by euroshark View PostThe S14 used 93.355mm pistons like my early euro M30. 92mm pistons came in M30B34s and B35s.
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Originally posted by Good & Tight View PostI always thought the older blocks "looked" thicker, my block is from 1978 with 91mm pistons no problems yet, even with nitrous.
BTW what stroke are you using Good & Tight?
Stroke/bore ratio will be quite bad with 90,5/86 combo.Current:
BMW 320i 2d 2.0 m20 -88
BMW 325i Cabriolet 2.5 m50 -88
BMW 316i touring 1.6 m40 -90
BMW 320i 4d 2,2 m54 -01
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Originally posted by Rocla View PostThey are beefier for sure, hope that it'll make difference.
BTW what stroke are you using Good & Tight?
Stroke/bore ratio will be quite bad with 90,5/86 combo.Need a Turbo manifold? We have them in stock- Click here---> http://rapidspoolindustries.com/
____________________________
E-mail Panayiotisx2@gmail.com
Dyno vid http://www.youtube.com/watch?v=C7aM7..._order&list=UL
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Originally posted by Good & Tight View Post80mm stroke, it's the stock 2.0 crank.Current:
BMW 320i 2d 2.0 m20 -88
BMW 325i Cabriolet 2.5 m50 -88
BMW 316i touring 1.6 m40 -90
BMW 320i 4d 2,2 m54 -01
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Originally posted by Mr Deagle View Posti just need to get some cans of energy drink, and weld all day and the header will be done, then work on the wiring harness, then dyno it, then put it all back together
muthafucka, hurry the hell up! i am tiredof waiting for the beast to be ready to pwn sti's, z06's and everything faster than those.....oh hell just hurry the hell up! lol.
p.s. check out the compressed air topic. i totally got your back.
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