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Thread: M30 Goals 580-600rwhp

  1. #1
    Join Date
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    BMW E34 535i Turbo(M106)

    M30 Goals 580-600rwhp

    Hi everyone
    I am Adnan and I am building my E34 m30 turbo engine.
    For now I am planning to built 580-600rwhp.
    I already have parts for build but I want to know what is yours meanings.
    Here is parts:
    - I bought forged pistons from Ross Racing for bore 93mm.So I want to bore m30b35 block to 93mm.
    - I bought also forged rods standard for m30b35.
    - MegaSquirt 2 V3
    - 800cc injectors
    - 6-2-1 exhaust manifold(one by one cylinder)
    - Intake manifold is stock with transplanted throttle body
    - BIIIG Inter Cooler and pipings 3 inch
    - Garret GT35 Journal Bearing
    - Lightweight single mass flywheel
    - Cylinder head is max ported and polished and intake and exhaust ports
    - Valves are machined to get more flow
    I am thinking to go higher compression ratio like 9:1 and about 20-25psi of boost.
    Or Is better to go 8.5:1 compression ratio?I wanna hear Your meanings is it possible to do that power with this specifications

  2. #2
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    Good luck with that, can wait to here about the results

  3. #3
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    Thank you.I will wait

  4. #4
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    2016 640i, 1990 535iM
    Get a larger intake manifold or make yours bigger and also I would recommend ignition upgrade as well to achieve your goal
    2016 640i Coupe'
    1990 Bmw 535i Turbo 600whp

    1999 740iL: Sold
    1997 740i: Crashed and Parted
    1988 535i: Crashed and Parted
    1988 528e: Crashed and parted
    IG- @Rogetta_Stone

  5. #5
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    1989 535i
    First off, what are you using this powerplant for?
    Daily? Race? Rally? Drag? Show?

    I'd forget about it being a daily. Zane made his e12 m30 get to 700hp, but not without a fortune.


    First off, running a 9:1 CR at ~23PSI is mad. That could create massive compression that would surely destroy your motor. Even with an O-ringed block and ARP.
    That is nearly 22:1 ECR if my calculations are correct (at that maximum boost). Turbo size has a place in these calculations but even without it, its pretty high.



    Formula one engines use 17:1 on extra special high octane race fuel.



    Diesel engines that use a different fuel and combustion system use 14:1 to 22:1.





    Aside from that... I'm no expert, but I've picked up a few things over my time here.

    I highly recommend getting your engine tuned to it's max power at a reputable dyno tuner with knock sensors.

    Q: What octane are you planning on running? This is very important.

    You didn't say whether or not you're going to be using water/meth injection or ethanol (~100-105 octane), Which would be required for those power levels without detonation.

    At stock CR, ~490 wheel hp is attainable on pump 91 without meth or ethanol. But only on a good tune. (For my setup, a larger turbo with more lag will protect against detonation due to the power band shifting)

    You stated ~595 wheel hp, which at 15% drive train loss is ~700 Crank hp. Stock forged rods won't put up with that. I think you stated that you have forged rods that are not stock? but are standard size? Make sure they're rated to 120hp/cylinder. Also, what are they made of? This changes a lot.

    If you want more power, you'd need to lower your compression ratio as much as possible. .120 HG would help greatly, E85 will protect against detonation and heating issues, and meth will also help suppress detonation and cool the intake air temperature.

    As far as intake goes, You'd need to expand/modify it or swap it for a larger aluminum one to attain 700 crank HP+
    The stock intake starts supposedly choking around the 500 hp levels (in the upper rpm). (Although the real issue with the intake is the narrow, crushed runner design). A very easy thing that I am doing is buying a 1jz aluminum manifold from eBay, ~120 bucks (240 with 90mm throttle body), cut off the runners and weld on your stock m30b35 intake runners. Fits like stock and clears the oil filter. Not pretty but if you paint it, its amazing. (I will likely have a write-up at a later time)

    Head flow. Its a 12v. Even though it is forced induction, it has limits with such a primitive head... Even with porting. You'll be pushing the upper bounds without massive gobs of money and modification.

    You said you've got 800cc injectors? That should work, but if you're running e85 you'll need more, 1000cc or 1200cc.

    Its good you have forged pistons, make sure they're rate to above 117hp/cylinder.

    Your next issue is drive-train. 700hp is a lot to deal with in a stock OEM drive-train. Your driveshaft will NOT be happy, your diff will not be happy, your frame will not be happy.

    Even a getrag 260/6 has it's limits. A 265 would be stronger but its still 2.5 times its stock power intake.

    You'd need a very low diff ratio and you wouldn't be able to have sloppy downshifts without demolishing synchros. Any diff ratio above 3.00 will get absolutely demolished. I'm sure people will say you can run 700hp on stock drivetrain, but you're really testing your luck, your wallet and the over-engineering of BMW.

    Along with drive-train is finding a clutch to handle that. Nothing at that power will be fun to drive daily. It will be a monster in the streets and a monster in the sheets. You're basically forced to run a ceramic clutch or some other ~$900 disc that will be a horror to drive in the streets (would cool on the track though!) (Ask redfive hehe)

    Traction? You'll need massive tires. E34 can only really fit 285s in the back, maybe 300's if you do massive modification. Expect to never take it out in the snow or rain unless you want to crash it.

    That being said, without more info we can not tell you if its possible, but its quite unlikely. ~540WHP is more doable given your current information at 8.5:1 or 8:1 cr.

    Cue 5mall5nail and Someguy2800

    "The more relevant question is how far will you be able to turn up the boost on your compression ratio and fuel before detonation becomes a problem. Detonation is the only thing that is going to hurt it, not boost or hp. The M20 and M30 motors are much more detonation prone than the 24 valve motors so octane become an issue fairly quickly. If you have access to it I would highly recommend running E85, or if that is not an option I would look into a meth injection system. If your fairly low compression you should be able to safely meet your goal of 500 crank HP on 92 octane pump gas with careful tuning. E85 or meth injection will add a huge margin of safety"
    -Someguy2800


    Good luck.
    Last edited by M60B40Bimmer; 12-26-2016 at 12:59 AM.
    1991 E34 535i Artic Gray



  6. #6
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    Some one is making shy under 800 rwhp on stock pistons and 34psi. I think it's also on e85

    - - - Updated - - -

    Some one also makes a log manifold for the m30 built to order for 650 shipped. I need to find pics of it. It was sweet
    2016 640i Coupe'
    1990 Bmw 535i Turbo 600whp

    1999 740iL: Sold
    1997 740i: Crashed and Parted
    1988 535i: Crashed and Parted
    1988 528e: Crashed and parted
    IG- @Rogetta_Stone

  7. #7
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    Quote Originally Posted by E38740iMD View Post
    Some one is making shy under 800 rwhp on stock pistons and 34psi. I think it's also on e85

    - - - Updated - - -

    Some one also makes a log manifold for the m30 built to order for 650 shipped. I need to find pics of it. It was sweet

    600hp is the highest I've seen on stock internals. Was it using stock rods? Stock rods just simply won't put up with that kind of horsepower, much less pistons. Although I think it is doable with shortened, stronger rods, gap-less rings, e85, machined piston for lower CR and a very thick head gasket, among other mods. No way is 800whp possible on a completely stock internals. That is 950 crank hp. Rods bend at 617hp, pistons die around 600hp.


    That log manifold is made by a gentleman in Europe if I'm not mistaken (Poland?). Its a dual-plenum design, very very efficient design, just not very aesthetically pleasing.

    http://www.bimmerforums.com/forum/sh...rication/page3
    Last edited by M60B40Bimmer; 12-26-2016 at 02:17 PM.
    1991 E34 535i Artic Gray



  8. #8
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    Running on E85 makes a lot of difference,,, on the web there are so many stories ,,guys are running stock internals,, on many great engines,,and the difference is colossal using E85 vs only 98-100 oct petrol ((EURO standard)) it looks like that if you are running on E85 you can make so much power and not braking everything,, these M30B35 can take an unreal amount of F/I before breakdown,, good oil for lubricant is important also getting the heat away,, and not to mention ignition,, standalone ,,all this procedure can easily make 600rwhp and naturally with great turbo setup

    Just my opinion
    Sveinbjörn Hrafnsson

    E30 CABRIO V12 M70B50 ///
    ALPINA B10 BITURBO 346 @ 507
    ULTIMA Evolution
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  9. #9
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    Quote Originally Posted by M60B40Bimmer View Post
    600hp is the highest I've seen on stock internals. Was it using stock rods? Stock rods just simply won't put up with that kind of horsepower, much less pistons. Although I think it is doable with shortened, stronger rods, gap-less rings, e85, machined piston for lower CR and a very thick head gasket, among other mods. No way is 800whp possible on a completely stock internals. That is 950 crank hp. Rods bend at 617hp, pistons die around 600hp.


    That log manifold is made by a gentleman in Europe if I'm not mistaken (Poland?). Its a dual-plenum design, very very efficient design, just not very aesthetically pleasing.

    http://www.bimmerforums.com/forum/sh...rication/page3
    I will ask him and see what the bottom end is looking like.
    2016 640i Coupe'
    1990 Bmw 535i Turbo 600whp

    1999 740iL: Sold
    1997 740i: Crashed and Parted
    1988 535i: Crashed and Parted
    1988 528e: Crashed and parted
    IG- @Rogetta_Stone

  10. #10
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    BMW E34 535i Turbo(M106)
    Thanks to everyone...I bought now injectors 1000cc and I am planning to use car daily and drag racing.I am now thinking to use e85.Last time I used 100 octane fuel...I am now in progress of making new intake manifold(post pictures later when finish).

  11. #11
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    I know this thread is old but just wanted to clarify that the stock m30 rods most definitely handle 140-150 per..... and Andrew rippa made 809 whp on a stock m30 bottom end with m7 cam and e85 .... I made 550 whp 610tq for 2 years until I cranked it to 22 psi and just had a little coolant push ....

  12. #12
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    Andrew build was nice. He even used md instead of wasted spark as well. Did someone buy his car yet?

    Long live the m30!
    2016 640i Coupe'
    1990 Bmw 535i Turbo 600whp

    1999 740iL: Sold
    1997 740i: Crashed and Parted
    1988 535i: Crashed and Parted
    1988 528e: Crashed and parted
    IG- @Rogetta_Stone

  13. #13
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    Stock forged rods definitely handle 800 it’s just a matter of dialing down at peak torque
    Current:

    2000 528i sport 5 spd
    1989 535i hoopty
    1992 735iL 5spd Turbo
    ripstick



    Past:
    lots and lots

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