noob question: mkIII aftermarket turbo exhaust manifold

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Thread: noob question: mkIII aftermarket turbo exhaust manifold

  1. #26
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    bling, bling!!!!!

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  3. #27
    Impeller Head jt2ma71's Avatar
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    Originally posted by AWIDESUPIE
    Sooo ... Ron ... where are you getting full boost at in the rpm range? I would think with that large of a turbo you would make full past 4k rpm. However ... your video does seem to show some fast spool ... and the flow capability and quality work that is evident in the few pictures I just looked at tells me good things. I just want to hear it from you. When does initial spool start and full come into play in the rpm range?
    I had a TO4E with the RPS and spool up time is very much the same. Depends which gear/load I'm at, but 1st and 2nd gear I hit full quick. I think because the motor revs quicker though. Generally, in the 3800-4000 rpm and I have rev limiter set at 7200 rpm. Lowest I've seen on the log as far as initial spool is at ~2800 rpm. Everything varies with the load though.
    HTH.

    MoTeC Shit$. Dry sump 2JZ. GTX4294R. 704 24 psi CH3OH and pump. 844 26 psi race.
    Videos Cardomain

  4. #28
    psychobunny
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    HOLY F***!! That is a nice manifold! nice car too.

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  6. #29
    oi Silver88Turbo's Avatar
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    OMG that is fucking gorgeous. What kind of turbo is mounted on that bad boy?

  7. #30
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    ron, if you decide to make copies of your manifold, just know that there would be a market for it, and they would pay the price you name for it.

  8. #31
    lost_MK3
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    hey ron, that manifold is also a masterpiece. I like how the collectors is welded w/ the divider. Also is that a burns collector? How much did you buy it for? Or did you get that manifold custom tig welded? If so, do you happen to know where I can get the flanges for it ?

    thanks,
    Khang

    BTW, your coor look awesome!

  9. #32
    Impeller Head jt2ma71's Avatar
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    Thanks again for the comments The only part of the header I didn't make are the 2 collectors. They are made by burnsstainless. I had to modify them to fit the square holes of the turbo flange. All the flanges are made from .5" 321 ss plates that I bought. I did all the cutting, fitting and welding.

    --Ron

  10. #33
    Boost Creep.
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    Quick question, Ron... With all those compound curves, how did you get the manifold so damn shiny?!?! Hours of hand-sanding and polishing, or some machine process?

    Thanx,
    Brendan

  11. #34
    lost_MK3
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    yeah ron, that manifold looks like alot of time was put into it. How long did it take you to piece that beauty together and that manifold is blinging.... did you polish it yourself?

  12. #35
    Impeller Head jt2ma71's Avatar
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    Originally posted by lost_MK3
    yeah ron, that manifold looks like alot of time was put into it. How long did it take you to piece that beauty together and that manifold is blinging.... did you polish it yourself?
    It took about 2 weeks working about 3-4 hrs a day, including the prototyping. I got confident and stopped making mock up runners after the third runner. Polishing it wasn't that hard either; I just used big dia. polishing wheel on a hand held ginder on the tight spots. It would have been a better choice to polish each runner before final welding but I only decided to polish when everything was done.

    --Ron

  13. #36
    SupraForums Member SuperRunner's Avatar
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    So did you also make the flange that bolts to the head?

    What size diamter is the tubing?
    94 Supra - Single - 63mm putt around car.
    89 Supra - 2JZ - glide - 9.73@139mph
    http://www.monster-performance.com.

  14. #37
    Impeller Head jt2ma71's Avatar
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    Originally posted by SuperRunner
    So did you also make the flange that bolts to the head?

    What size diamter is the tubing?
    Yes, I made the flanges. I had access to a school machine shop at the time. Broke a few cutters and ended up taking it (the main flange) to a local shop for finishing the runner holes. The primary tubing size is 1 5/8 OD.

  15. #38
    SupraForums Member SuperRunner's Avatar
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    Originally posted by jt2ma71
    Yes, I made the flanges. I had access to a school machine shop at the time. Broke a few cutters and ended up taking it (the main flange) to a local shop for finishing the runner holes. The primary tubing size is 1 5/8 OD.
    Broke a cutter? I would have assumed you used plasma. What kind of cutter?

    I will be starting a 2JZGE-GTE conversion fairly shortly(waiting on money for turbo), and putting it in my 2,000lb 89 pickup. Unfortuantly, I don't have access to a tig, so I will be mig'ing it(No SS)

    Anyway, looks gorgeous. I must give alms to your work.

  16. #39
    Impeller Head jt2ma71's Avatar
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    Originally posted by SuperRunner
    Broke a cutter? I would have assumed you used plasma. What kind of cutter?

    I will be starting a 2JZGE-GTE conversion fairly shortly(waiting on money for turbo), and putting it in my 2,000lb 89 pickup. Unfortuantly, I don't have access to a tig, so I will be mig'ing it(No SS)

    Anyway, looks gorgeous. I must give alms to your work.
    Nope, all flanges where machined. Our plasma in school wouldn't cut 1/2 SS, or so my instructor said. I did cut some .25 321 with it though. We had a big automated plasma cutter but the computer was acting up. Cutters were carbide. Thanks.

  17. #40
    Canada, Eh? Enraged's Avatar
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    Ron, why did you go with the longer runners? better spoolup? im currently an ME student, and once the teachers know me a bit better, i should be able to get some time in the machine shop. lathes, mills, a TIG, and if im lucky, CNC mill and CNC lathe

    right now im looking into building an intake manifold (ive read through the previous threads about yours, amazing work). a few questions for you on it, what is the internal displacement of your plenum? from what ive been reading, some say min 80% of your engine displacement, others say 120%.

    as for the exhaust manifold, since im still on stock turbo, it would be nothing more than an experiment really, i was considering just building it with mild steel, then having it ceramic coated. do you think i would see much gain with a basic log-style, or maybe a weld-el tubular mani?

    sorry for all the questions, the machine shop is making me drool i love fabricating, i just need the skills to do it properly.

  18. #41
    Impeller Head jt2ma71's Avatar
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    Enraged, I'll send U a PM

    --Ron

  19. #42
    Canada, Eh? Enraged's Avatar
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    i'm lookin forward to it

    ive actually used the CNC before, i took a night course about a year and a half ago. once the CNC teacher finds the time, we're going to finish up a little project i did back in the night course.... solid aluminum shift knobs prety good for $20 in aluminum stock and a few set screws...
    Last edited by Enraged; 10-22-2003 at 08:10 PM.

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