krexken
Zone Head
Posts: 732
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posted February 14, 2002 12:18 PM
Oil Bypass Shimming Results
Checked the oil pressure with the engine at the fan turn on temp, freshly heated Mobil 1 MXT4 in er. 20psi at idle, 40psi at 4000rpm, 60psi at 6000rpm. It'll approach 90psi when rapping the motor to 8000 or so. This is with a .040 shim in the bypass valve. Be curious to see what it is without the shim. I'd guess it would be adequate.
  
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EastBayDave
Needs a job
Posts: 2245
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posted February 14, 2002 06:04 PM
Cool! Thanks for the results Ken. Did you test it WITHOUT the shim? Or only with it? Curious what the stock readings are (probably in manual...duh Dave.)
So are you racing the Ninja yet, or still just the ZRX? Get the Rex into the 10's yet? I know you were close...
Dave
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Enjoy the ride!
02' ZRX1200
00' ZX12R sold
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krexken
Zone Head
Posts: 732
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posted February 14, 2002 10:53 PM
Only checked the pressure with the shim in it, Dave. Manual says a minimum of 23psi at 4000rpm.
Rex has been 9.98 once, 10 teens mostly. Hope to run the big 12 this weekend.
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TENN12
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Posts:
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posted February 15, 2002 02:39 PM
Can someone post the instruction's for this mod.?
Thank's
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ra12r
Zone Head
Posts: 919
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posted February 16, 2002 04:01 PM
Instructions
1) Remove oil pan
2) Identify pressure relief valve
3) Remove clip
4) Aquire washer that fits.."i used Home depot scew #30699 32481 #10 washer (.031")
5) Insert washer "up to .040" on top of the spring retainer
6) Replace clip
7) Replace oil pan
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All must bow to the "Ra Supremecy"...
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TENN12
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Posts:
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posted February 17, 2002 09:37 PM
That easy huh. Thank's!
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