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Thread: stock m50b25 non-vanos, how much HP?

  1. #26
    Join Date
    Jan 2007
    Location
    Minneapolis, MN
    Posts
    244
    My Cars
    325ti 325xi 323ci 325ix
    5k miles on 400+ horsepower stock block non vanos, 15psi on a 6262 with e85 and only ARP studs, rod bolts, and main studs... so far so good!

    373 whp at 11psi e85 "winter blend" - Dyno Dynamics
    15psi now stock headgasket ~430+ whp - Butt Dyno

  2. #27
    Join Date
    May 2017
    Location
    Athens.Greece
    Posts
    18
    My Cars
    1997 e36 325 M/T
    hello i hvae an m50b25 vanos .. how many hp with turbo on stock engine? without arp bolts and headgasket... only turbo gt35 and boost 0.6??

  3. #28
    Join Date
    Apr 2006
    Location
    Minnesota eh?
    Posts
    6,155
    My Cars
    86 325es
    Quote Originally Posted by Vaggelistsk View Post
    hello i hvae an m50b25 vanos .. how many hp with turbo on stock engine? without arp bolts and headgasket... only turbo gt35 and boost 0.6??
    That would probably make about 300 whp on a dynojet assuming its well sorted out with good exhaust, intercooler tuning ect...


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  4. #29
    Join Date
    May 2017
    Location
    Athens.Greece
    Posts
    18
    My Cars
    1997 e36 325 M/T
    hello again! if i install hg and arp bolts on stock engine how much bar/psi for safe??
    and something more! for boost from 3.000 -7.000 rpm what turbo i must install?? maybe gt35? gt28? gt30? from ebay? cheap turbo? thank you all!!

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