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Os giken head

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Old Jul 29, 2009 | 08:18 AM
  #1  
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Os giken head

Does anyone actually have one? I mean OS had to produce them...and they have to be out there floating around somewhere.

I've read they weren't much of an advantage over a single cam L series.

I've just never actually SEEN anyone that had one. I'm wondering where they went. I saw the KA molded L series on youtube, he's building a devil Z type replica... except the devil Z had a 3.1 stroker twin turbo single cam making like 450hp or something like that. lol

I'm really debating on whether I should go KA-T or L28ET.. ugh.
Old Jul 29, 2009 | 08:22 AM
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Oh yeah?! Freak this!!!
 
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https://www.zdriver.com/forums/showt...light=os+giken
Old Jul 29, 2009 | 09:14 AM
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Who said they were not much advantage?

I saw an old 1980's video of an L16 powered 510 with the DOHC OS head blowing past a DOHC 240Z with the S20(?) engine. Nissan's Z342 basically. 2.0 losing to a 1.6L due to 10k rpms of power. Those OS heads rev HIGH and flow very well at those revs.

Last edited by Bleach; Jul 29, 2009 at 09:46 AM.
Old Jul 29, 2009 | 10:32 PM
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Originally Posted by KingDatsun1
Does anyone actually have one? I mean OS had to produce them...and they have to be out there floating around somewhere.

I've read they weren't much of an advantage over a single cam L series.
HAHA!! Whoever said that doesn't know what they're talking about. Most likely it was said in the frustration of knowing they'll never have one!

Originally Posted by KingDatsun1
I'm really debating on whether I should go KA-T or L28ET.. ugh.
L28ET or RB25DET are the only real choice.
Old Jul 30, 2009 | 12:48 AM
  #5  
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eff good grammar
 
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they could go meow motor but it'd be their mistake
Old Jul 30, 2009 | 08:14 AM
  #6  
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KA24DET would be ok in your 510.
Old Jul 30, 2009 | 11:22 AM
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I can't find an L28et anywhere, KA's are a dime a dozen.

I'm looking for 500hp. (this will be my ultimate car, I won't be selling it no matter what)

I'm guessing I'd have to go turbo stroker?
Old Jul 30, 2009 | 11:26 AM
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Where are you at?...I've got two sitting in my back yard.
Old Jul 30, 2009 | 11:31 AM
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Originally Posted by Edz280zx
Where are you at?...I've got two sitting in my back yard.
Pittsburgh PA, I have no idea what shipping would be lol where are you?
Old Jul 30, 2009 | 11:47 AM
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Originally Posted by KingDatsun1
Pittsburgh PA, I have no idea what shipping would be lol where are you?
Missouri...way to far to ship a motor...sorry
Old Jul 30, 2009 | 11:54 AM
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Originally Posted by Edz280zx
Missouri...way to far to ship a motor...sorry
ugh lol lol
Old Jul 30, 2009 | 01:06 PM
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where in missouri? cause i might need one of those turbo motors at a later date in time lol and my dad has been to St. Louis alot lately for work....
Old Jul 30, 2009 | 01:14 PM
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I'm about 3 hours south west of St. Louis
Old Jul 30, 2009 | 03:04 PM
  #14  
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you dont have to buy a TURBO motor...you can buy parts to make your motor turbo. turbo pan,turbo manifold and a turbo dizzy. since you plan to so call make 500 hp you will have upgrade car components. you will most likely send a l28 to a shop. read about the stroker not all that great on a turbo motor. better just to turn the boost up
Old Jul 30, 2009 | 05:05 PM
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true. if you are planning to have 500 whp then you must be rich.
Old Jul 31, 2009 | 12:23 AM
  #16  
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eff good grammar
 
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if you want 500 than your going to have to go MEOW! motor instead of just meow
Old Jul 31, 2009 | 01:01 AM
  #17  
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or you could swap in a turbo ls2 and make more power then any sane man needs.
Old Jul 31, 2009 | 08:49 AM
  #18  
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people are almost throwing their KA's away around here lol


mmm low end torque.

I just wish I could get ahold of a freaking l28et. lol

I'd just buy a advanced rebuild kit from race tep, do a little head work and boost the hell out of it

they sell a turbo kit for a KA... its 11 grand??!?!?!

I'd love to know what they charge for an L series motor build...
Old Jul 31, 2009 | 11:29 AM
  #19  
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i would though since i don't have an F54 block only the older version L28. so spending the 500 on a turbo motor would be the same price route as getting an NA block and piecing together a turbo setup, i'd know, i've done it before lol.
Old Jul 31, 2009 | 01:17 PM
  #20  
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Stupid Hurricanes...
 
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why i said you can build you a l28et for cheap. no difference in a turbo piston and a n/a piston on a n42 block. But again if u want so called 500 you might want to look into forged. methanol would work great but still cheap insurance having forged pistons and rods(not cheap in price though). but snw knows all about building a turbo l28 ....the ka is a great little motor. of course you have the battle of ka vs sr.
Old Jul 31, 2009 | 02:41 PM
  #21  
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displacement=win..... i would love to toss a mild 400WHP KA-T into my s30 or z32 for pure ***** and giggles. (or to **** people off)
Old Aug 2, 2009 | 06:54 PM
  #22  
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man i feel ya on the hard to find l28et's. im in nevada and cant find nothing. i've been lookin for one for a long long time. i've got an 83 280zx 2+2 and a 81 280zx 2 seater. both n/a and im lookin to turn 1 of em into a turbo. cant eve find one from pick n pull or no where.
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