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Thread: m52 Turbo Build

  1. #151
    Join Date
    Feb 2011
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    Virginia
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    97' m52 turbo
    Anyone know about the ICV hose? Can I loop it?

  2. #152
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    97' m52 turbo
    peek a boo


    image of a safe

    Can someone remind how I can keep AC again? Seems like my choices are.

    A. Heat soaked intake
    B. No Ac.


    image of a safe
    Last edited by 328iFun; 04-14-2017 at 10:12 PM.

  3. #153
    Join Date
    Aug 2007
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    Vancouver, B.C., Canada
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    '97 M3
    I made a blanket for the turbo intake. Many people have kept their AC without issue.
    '97 M3, Estoril blue, 2 dr, euro 6-spd, EFR 9180 divided T4 .92 IWG, RK tuning, CP 8.5:1 pistons, Eagle rods, Schrick cams, L19 11 mm ARP studs, O-ringed block, Supertech stainless/inconel valves, Supertech springs & Ti retainers, ported head, S54 oil pump/pan, 80 lb. injectors, OBD1 intake manifold, Steedspeed twin scroll T4, 3.5" SS exhaust, eBoost2 EBC, HFS-4 W/M injection, AEM Failsafe, Zeitronix data logger, Racelogic TC, OpenOBC w. ethanol %, Ireland Eng. engine mounts, UUC black tranny mounts w. enforcers, UUC twin disc feramic, ARC-8's, MCS 2-ways, Z3 rack, Rallyroad strut bar, X brace, Eibach sway bars, Ground Control LCAB bushings, Bimmerworld RTAB's, Powerflex subframe bushings, 210 4-clutch LSD, Stoptech BBK, titainium shims, steel braided lines, brake cooling ducts.

  4. #154
    Join Date
    Oct 2010
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    Manchester, N.H.
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    96 332IS 6466 turbo
    Why mess with over subframe piping ? If you tuck it enough it never rubs. Stays way cooler.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  5. #155
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    Aug 2007
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    '97 M3
    Unless he's a Stancy Nancy.

    I've ran under subframe for years. I have a few scratches on it but have never had an issue with it. The 3.5" exhaust will hit way before my 3" hot pipe will and most people use 2.5" hot pipes.
    '97 M3, Estoril blue, 2 dr, euro 6-spd, EFR 9180 divided T4 .92 IWG, RK tuning, CP 8.5:1 pistons, Eagle rods, Schrick cams, L19 11 mm ARP studs, O-ringed block, Supertech stainless/inconel valves, Supertech springs & Ti retainers, ported head, S54 oil pump/pan, 80 lb. injectors, OBD1 intake manifold, Steedspeed twin scroll T4, 3.5" SS exhaust, eBoost2 EBC, HFS-4 W/M injection, AEM Failsafe, Zeitronix data logger, Racelogic TC, OpenOBC w. ethanol %, Ireland Eng. engine mounts, UUC black tranny mounts w. enforcers, UUC twin disc feramic, ARC-8's, MCS 2-ways, Z3 rack, Rallyroad strut bar, X brace, Eibach sway bars, Ground Control LCAB bushings, Bimmerworld RTAB's, Powerflex subframe bushings, 210 4-clutch LSD, Stoptech BBK, titainium shims, steel braided lines, brake cooling ducts.

  6. #156
    Join Date
    Jun 2005
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    New England
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    F90 M5; E36 M3 Turbo
    For over the subframe, you turn the compressor so it discharges upwards, then weld a right angle on it, so the discharge pipe can run right under the manifold where it gets heated up and any silicone couplers get melted, then add some restriction and wiggle around the AC compressor. And use smaller 2 inch pipe. And use a smaller 3 inch intake. and use a more restrictive compact compressor cover.

    While I am being critical, this has worked fine for plenty of 500 rwhp cars. I think it is not ideal as power goes above that level, but honestly, as power goes above that level, expense, complications, and reliability seem to go down.

    I have run under the subframe piping for 7 years. It is a little scraped up. My car is not slammed, though.

  7. #157
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    96 332IS 6466 turbo
    The question is with no other mods, and only going from over to under @500hp levels , what's the gains ?
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  8. #158
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    97' m52 turbo
    Quote Originally Posted by Butters Stoch View Post
    Why mess with over subframe piping ? If you tuck it enough it never rubs. Stays way cooler.
    Plan on going under the subframe. Had it facing upwards towards the engine but there was literally no room

    - - - Updated - - -

    Quote Originally Posted by chikinhed View Post
    Unless he's a Stancy Nancy.

    I've ran under subframe for years. I have a few scratches on it but have never had an issue with it. The 3.5" exhaust will hit way before my 3" hot pipe will and most people use 2.5" hot pipes.
    The cars on coilovers now and I do adjust them every once in awhile. But I live on a gravel road So I can't go but so low anyway

    - - - Updated - - -

    Quote Originally Posted by Butters Stoch View Post
    The question is with no other mods, and only going from over to under @500hp levels , what's the gains ?
    I do plan on being very conservative with the setup. After doing all this work including ordering and waiting for parts (which most of the time don't work or are crap). I may run between 6-10ish psi for around 300 hp levels for a good reliable DD. Should make the car a little more fun to drive

  9. #159
    Join Date
    Oct 2010
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    96 332IS 6466 turbo
    I'll bet you $50 you can't keep it under 8 psi for more then 4 weeks.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  10. #160
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    Quote Originally Posted by pbonsalb View Post
    For over the subframe, you turn the compressor so it discharges upwards, then weld a right angle on it, so the discharge pipe can run right under the manifold where it gets heated up and any silicone couplers get melted, then add some restriction and wiggle around the AC compressor. And use smaller 2 inch pipe. And use a smaller 3 inch intake. and use a more restrictive compact compressor cover.

    While I am being critical, this has worked fine for plenty of 500 rwhp cars. I think it is not ideal as power goes above that level, but honestly, as power goes above that level, expense, complications, and reliability seem to go down.

    I have run under the subframe piping for 7 years. It is a little scraped up. My car is not slammed, though.

    I had it configured that way originally but there was no room for it. I faced it upwards a little more then it was right under the manifold which I didn't like at all

    - - - Updated - - -

    I'm thinking I may have to grind that triangular piece on the transmission down to fit exhaust piping.

    and...

    i still have to tighten all the exhaust manifold bolts. Which will undoubtedly take all day.

    - - - Updated - - -

    Quote Originally Posted by Butters Stoch View Post
    I'll bet you $50 you can't keep it under 8 psi for more then 4 weeks.
    This will be the first time I've ever even driven an FI car. So I really dont know what to expect anyway. But Ill take that bet

  11. #161
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    Gotta go to the scrap yard today to get a couple rubber grommets and other misc items. Gotta a place not far away that always has E36s

    Anyone need anything ?

  12. #162
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    Minnesota eh?
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    86 325es
    I've got another 50 on that


    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

  13. #163
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    Quote Originally Posted by someguy2800 View Post
    I've got another 50 on that
    Oh,

    I see how it is

  14. #164
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    Yep I'll do 50$ on that. 12psi is a good daily setup just enough to feel pretty nasty.

  15. #165
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    Quote Originally Posted by Mklock View Post
    Yep I'll do 50$ on that. 12psi is a good daily setup just enough to feel pretty nasty.
    I would like to run high boost daily but I don't have forged/low com pistons. I wonder how the long the motor would hold at 12psi daily. I've read the block is good up to 500 but I've haven't read or heard of anyone who can back that with just spacer/studs?

  16. #166
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    Quote Originally Posted by 328iFun View Post
    I would like to run high boost daily but I don't have forged/low com pistons. I wonder how the long the motor would hold at 12psi daily. I've read the block is good up to 500 but I've haven't read or heard of anyone who can back that with just spacer/studs?
    my first setting is 12-13 psi on my boost controller, which I daily drive to work every single day. 4:50 am bright and early.


    PTE6262 .63 A/R, Stock S52, Cutring/Copper Spacer/Arp Studs Combo, Water Methanol Injected
    10.9@131mph. #AngerMotorsports

  17. #167
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    Quote Originally Posted by E36Mylo View Post
    my first setting is 12-13 psi on my boost controller, which I daily drive to work every single day. 4:50 am bright and early.
    And your only running spacer and studs?

  18. #168
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    Quote Originally Posted by 328iFun View Post
    And your only running spacer and studs?
    spacer + studs + cutring hg


    PTE6262 .63 A/R, Stock S52, Cutring/Copper Spacer/Arp Studs Combo, Water Methanol Injected
    10.9@131mph. #AngerMotorsports

  19. #169
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    Quote Originally Posted by E36Mylo View Post

    spacer + studs + cutring hg
    Nice

  20. #170
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    E36 M3 turbo, E90 M3 ZCP
    Quote Originally Posted by Butters Stoch View Post
    I'll bet you $50 you can't keep it under 8 psi for more then 4 weeks.
    I am only going on 2 weeks at 8psi WG Spring and will be turning it up to 12psi tonight. Getting the new meth line installed Friday and seeing how 17-18 feels.
    1995 M3 coupe GTX3582R powered
    2011 M3 sedan ZCP

  21. #171
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    Quote Originally Posted by Butters Stoch View Post
    I'll bet you $50 you can't keep it under 8 psi for more then 4 weeks.
    4 weeks? I think I was at 12-13 psi within a week, I started at 5-6psi.

  22. #172
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    Quote Originally Posted by rajicase View Post

    4 weeks? I think I was at 12-13 psi within a week, I started at 5-6psi.
    I couldn't keep it under 10 the first day.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  23. #173
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    Quote Originally Posted by Butters Stoch View Post
    I couldn't keep it under 10 the first day.
    This was/is my first fast car, so the thrill of 6 psi lasted a bit longer for me

  24. #174
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    i'm at 20psi which feels like a daily psi for me. just dont get on it if you wanna go slow.

  25. #175
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    Quote Originally Posted by Mklock View Post
    i'm at 20psi which feels like a daily psi for me. just dont get on it if you wanna go slow.
    I'd be curious if you are making more power at 20 psi than say 13-15 with that small turbo.

    With my 256 I didn't make any more power going from 13 to 18psi. Little guy was tapped out.

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