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Registered:
March 2004
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SC-14 Questions
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Tue, 13 July 2004 17:07
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I stuck a SC-14 on my 18rg and I lowered my comp to 7.5:1. I am running the largest pulley to max out the blower speed. I am only getting 7lbs of boost. does anyone know what this blower should be outputting? could there be a problem with the blower? I have eliminated all leaks. the blower runs constant cause I had to take off the clutch.
thank you
mark
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Location:
Brisbane
Registered:
May 2002
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Re: SC-14 Questions
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Wed, 14 July 2004 00:53
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What is the pulley ratio, and how does it compare to a 1G-GZE?
Remember the boost pressure will be a function of blower RPM and the engine's volumetric efficiency, so there's no guarantee you'll acheive the same boost pressure as a 1G at the same RPM.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: SC-14 Questions
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Wed, 14 July 2004 02:28
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if, as you say in your sig, you have 304/304 cams in an SC motor, i dare say you are blowing half the air out thru an open exhaust valve...
what are your cam specs? what rpm will you rev to?
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Location:
Perth
Registered:
May 2003
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Registered:
March 2004
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Re: SC-14 Questions
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Wed, 14 July 2004 13:56
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sorry I changed to 18rgu cams and I am running a huge intercooler and 2.5" pipe through out the system. I am running flattop forged pistons. had the block decked and head milled to get 7.5:1 comp ratio. stock EFI manifold. Ive tried to advance the intake but it moves the powerband down and I loose a little power moved them back to stock and no boost change but revs nicely. retarded exhaust cam and put the intake to stock and gained a little power. no change in boost levels by adjusting the cams. I blew a hole in my intercooler lastnight.
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Registered:
March 2004
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Re: SC-14 Questions
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Wed, 14 July 2004 21:56
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bump
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Location:
Brisbane
Registered:
May 2002
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Re: SC-14 Questions
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Wed, 14 July 2004 23:32
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Blew a hole in your intercooler? Did you move the throttle pre-blower, or is it still in its factory location?
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Registered:
March 2004
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Re: SC-14 Questions
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Thu, 15 July 2004 03:21
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still in factory location. bought a great bypass valve
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Location:
Brisbane
Registered:
May 2002
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Re: SC-14 Questions
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Thu, 15 July 2004 06:09
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The hole in your intercooler suggests it's not so great. 
Both the 4A-GZE and 1G-GZE have the throttle pre-blower. Did it occur to you that Toyota did it this way for a reason?
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Registered:
March 2004
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Re: SC-14 Questions
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Thu, 15 July 2004 18:14
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I bought an intercooler on ebay! POS!! the guy wont email me back now!
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Location:
Brisbane
Registered:
May 2002
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Re: SC-14 Questions
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Thu, 15 July 2004 23:35
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Registered:
March 2004
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Re: SC-14 Questions
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Mon, 19 July 2004 17:11
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the guy finally emailed me back and is sending me a new one and it is a little smaller. I think the one I have it too big and I am loosing boost. going to move the stock cams back to TDC. not any power gain by adjusting cams.
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Location:
Perth
Registered:
May 2003
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Registered:
March 2004
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Re: SC-14 Questions
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Tue, 20 July 2004 15:10
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S/C seems to be in good shape. I bought the bypass valve brand new and it says I need to cut the inner spring for idle quality. it is a turboxs bypass valve. seems to hold the boost in pretty good.
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