wind up the boost until you hear a loud bang and thats probably your limit
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| Stock engine on boost. https://www.ausmini.com/forums/viewtopic.php?f=2&t=54938 |
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| Author: | James Dean [ Tue Jul 07, 2009 5:44 pm ] |
| Post subject: | Stock engine on boost. |
So i have a 1976 998 and am going to be putting a turbo on it. Just wondering if anyone has an idea on what sort of poundage the stock internals car handle. I was hoping to run around 16+ pound but am sort of worried.. The engine is under rebuild at the moment so now would be the time to change it all.. Cheers. |
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| Author: | doogie [ Tue Jul 07, 2009 6:00 pm ] |
| Post subject: | |
Talk to Graham Russell. Doogie |
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| Author: | Mister White Keys [ Tue Jul 07, 2009 6:22 pm ] |
| Post subject: | |
wind up the boost until you hear a loud bang and thats probably your limit
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| Author: | James Dean [ Tue Jul 07, 2009 6:24 pm ] |
| Post subject: | |
Mister White Keys wrote: wind up the boost until you hear a loud bang and thats probably your limit
the thing is, its in pieces now, and really don't see that being a good idea 
p.s. i know its a joke. |
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| Author: | Morris 1100 [ Tue Jul 07, 2009 6:29 pm ] |
| Post subject: | |
James Dean wrote: Mister White Keys wrote: wind up the boost until you hear a loud bang and thats probably your limit the thing is, its in pieces now, and really don't see that being a good idea p.s. i know its a joke. If it is already in pieces you don't need to wind the boost up. |
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| Author: | NAV [ Tue Jul 07, 2009 7:07 pm ] |
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James Dean wrote: Mister White Keys wrote: wind up the boost until you hear a loud bang and thats probably your limit the thing is, its in pieces now, and really don't see that being a good idea p.s. i know its a joke. Not going to get any boost until the engine runs. Speak to GR, he's the guru. |
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| Author: | benjamin [ Tue Jul 07, 2009 7:42 pm ] |
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how do you mean stock? head gasket will withstand 12psi with arp studs and good gasket but i think you will have issues with 16psi basically depends on tune and pistons but crank and rods will easy hold 16psi hope that helps |
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| Author: | James Dean [ Tue Jul 07, 2009 8:08 pm ] |
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benjamin wrote: how do you mean stock?
head gasket will withstand 12psi with arp studs and good gasket but i think you will have issues with 16psi basically depends on tune and pistons but crank and rods will easy hold 16psi hope that helps it does. I will contact the guy that has been suggested above. Just want to find out what sort of pressure the internals can withstand so i can have an idea on my limits. Cheers. |
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| Author: | TheMiniMan [ Tue Jul 07, 2009 9:42 pm ] |
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I wouldn`t go past 10psi if i were you & i`d be dropping the compression ratio to about 8:1 or 8.5:1 max if you`re contemplating running on pump fuel However,,, if you`d like to creep it up to the edge, then maybe 15psi but it will probably be pushing the limits on pump fuel did i mention anything about pump fuel? Oh & if you`re using pump fuel then i`d make sure the max ign timing is kept at or under 20deg are you using it with pump fuel??? 
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| Author: | Mister White Keys [ Tue Jul 07, 2009 9:54 pm ] |
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TheMiniMan wrote: I wouldn`t go past 10psi if i were you & i`d be dropping the compression ratio to about 8:1 or 8.5:1 max if you`re contemplating running on pump fuel
However,,, if you`d like to creep it up to the edge, then maybe 15psi but it will probably be pushing the limits on pump fuel did i mention anything about pump fuel? Oh & if you`re using pump fuel then i`d make sure the max ign timing is kept at or under 20deg are you using it with pump fuel??? AVGAS comes from a pump
I'm really not contributing much to this thread i'll admit 
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| Author: | TheMiniMan [ Tue Jul 07, 2009 9:56 pm ] |
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no no no,,, you have it all wrong,,, AvGas comes from the bottom of an AV
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| Author: | drmini in aust [ Tue Jul 07, 2009 10:02 pm ] |
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TheMiniMan wrote: no no no,,, you have it all wrong,,, AvGas comes from the bottom of an AV
I dunno about the other states but in NSW if caught using avgas on the street, they hang you by your gonads and relieve you of $5K. 
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| Author: | TheMiniMan [ Tue Jul 07, 2009 10:04 pm ] |
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drmini in aust wrote: TheMiniMan wrote: no no no,,, you have it all wrong,,, AvGas comes from the bottom of an AV I dunno about the other states but in NSW if caught using avgas on the street, they hang you by your gonads and relieve you of $5K. well,,, NSW regs suck then ey??? I don`t mind being hung by the gonads but $5K ???? Bugga that !!!!!!
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| Author: | Super-mini [ Tue Jul 07, 2009 11:34 pm ] |
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how much $ are you prepared to spend? and what are you going to be using this motor for? |
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| Author: | jasonf [ Tue Jul 07, 2009 11:47 pm ] |
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drmini in aust wrote: if caught
That's the only bit you have to worry about Kev |
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