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Location:
cronulla
Registered:
November 2003
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4agze boost
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Mon, 15 March 2004 07:45
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anyone know how much boost a gze with stock internals can run b4 blowing up?
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Location:
The Eastwood MASSIVE !
Registered:
May 2003
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Location:
cronulla
Registered:
November 2003
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Re: 4agze boost
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Mon, 15 March 2004 10:02
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yeh, i have run 17psi thru the turbo and it still alive.
would like to know how much anyone have gotten outta it tho..
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Location:
cambo
Registered:
May 2002
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Re: 4agze boost
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Mon, 15 March 2004 10:06
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DiZ_ i dunno where your getting your info from, but my engine has been running 15psi with stock internals for years and hasnt shown any signs of wear. i dunno, maybe it will die tomorrow but its been holding up ok so far.
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Location:
The Eastwood MASSIVE !
Registered:
May 2003
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Re: 4agze boost
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Mon, 15 March 2004 10:55
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I have heard from many people with GZE knowledge that the SC12 WILL die when run at 14PSI or over via overdrive kits for a period of time.
Hence most GZE owners opting for 175mm nevo kits that manufacture 12PSI out of the SC12.
Feel free to prove me wrong , it would be good to learn more on the 4AGZE componant limitations.
Of course the engine internals can withstand more than 14 PSI 
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Location:
Adelaide
Registered:
February 2004
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Re: 4agze boost
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Mon, 15 March 2004 11:50
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I'm pretty sure your info is correct DiZ_ the sc12 craps itself at anything 14psi and over (12 is probably pushing the limit for much longevity), it just becomes way too ineficient and definately wont last too long, its old technology.
i know for certain that the gze engine itself is good for ~350hp. Don't really know about the boost limits.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4agze boost
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Mon, 15 March 2004 12:14
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there are cars in malaysia in particular that use early AFM GZE motors with turbos well over 20psi, but no one really knows how stock they are apart from stock pistons.
I think the most commonly accepted power output from an otherwise stock GZE motor is 350-400HP.
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I supported Toymods
On probation
Location:
Brisbane, Queensland
Registered:
January 2003
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Re: 4agze boost
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Mon, 15 March 2004 12:16
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Thats still nothing to sneeze at from a 1.6 
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Location:
Sydney
Registered:
January 2004
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Location:
cambo
Registered:
May 2002
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Re: 4agze boost
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Tue, 16 March 2004 06:22
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well maybe i dunno what im talking about but all i know is i personally am running 15 psi without trouble.
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Location:
Malaysia
Registered:
January 2004
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Re: 4agze boost
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Tue, 16 March 2004 08:34
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The SC12 will not melt at 14~15psi of boost but will melt if the boost is at more than 17psi sustaining it for a time. Burn a few of them suckers along the way. It creates a lot of heat in the process.
Unless you have more than 200k on the SC12, it will boost happily with a smaller SC pulley at 95mm diameter with no problems at all. The SC12 from the AFM and the MAP versions are one and the same. The only difference is the pulley from the AE92 and AE101 GZE is that the SC pulley is 5mm smaller.
But bear in mind the heat generated from the SC12 at that boost is hot and you need a real good intercooler to bring the temps down or detonation will set in. Stock IC will NOT do the job.
The GZE engine will withstand boost of 30psi happily whole day long with a turbo provided your fuel management is tune correctly. The only weak point from our experience is the conrod bearings that gave way and that blew a lot of ZEs. Get some nice aftermarket ones and the engine will last you a very long time.
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Location:
cronulla
Registered:
November 2003
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Re: 4agze boost
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Tue, 16 March 2004 13:51
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what con bearings would you suggest?
and stronger rings?
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Registered:
June 2002
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Re: 4agze boost
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Tue, 16 March 2004 20:17
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Just to clarify, high boost will not necessarily kill a SC12. Heat does. And heat doesn't necessarily or should I say is unlikely to come from high boost. In fact, it's more likely to come from low speed running with closed throttle. For instance, this occurs when the supercharger clutch wears out, or is locked shut. This is the fastest way to kill a Sc12.
I've yet to see evidence of a SC12 falling over as a result of the "heat" generated by 14psi. Fact is, that when the supercharger is working so it's producing 14psi, there is usually tons of air flowing through which in fact is providing adequate cooling to the rotors. It's when its sucking against a closed throttle with no air flow that heat is generated enough to melt the teflon.
John
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Location:
cronulla
Registered:
November 2003
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Re: 4agze boost
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Wed, 17 March 2004 09:30
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im talkn bout with a turbo on it.
no sc.
has anyone here got a turbo on one running ultra high amounts of boost/.>>??
on 17psi the engine rarely gets above 86deg c
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