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06-17-2011, 04:10 PM
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#11
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Quote:
Originally Posted by Shaolin Crane
Depending on how far the piston is in the bore, and actual volume of the heads etc Anywhere from 10.88:1 to 11.2:1
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What fuel are you going to run? That's a little high for 91 without pulling a lot of timing. |
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06-17-2011, 04:13 PM
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#12
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pain's fun, hit me again
Join Date: Sep 2009
Posts: 6,264
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i'll pull timing for the street, i hear conflicting reports all the time saying 11:1 is fine for 91 and some say 10.5:1 is too much for 91. Cases of torco are relatively inexpensive and if i do end up needing more i have friends at downs 
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Quote:
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Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him
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06-17-2011, 04:40 PM
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#13
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Quote:
Originally Posted by Shaolin Crane
Depending on how far the piston is in the bore, and actual volume of the heads etc Anywhere from 10.88:1 to 11.2:1
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I think it depends a lot on the design of the head, piston, etc. The design of the 302 is not as good as say an LS where you can run higher compression. I think you're going to end up having to run either a slash of 100 or 110 or some Torco. |
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06-17-2011, 05:24 PM
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#14
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pain's fun, hit me again
Join Date: Sep 2009
Posts: 6,264
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If I'm running race fuel I'll run straight 110 and enjoy the benefits, but I should be able to get away with a bottle of torco per tank will fix
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Quote:
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Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him
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06-17-2011, 07:53 PM
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#15
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Senior Member
Join Date: Jun 2009
Posts: 2,509
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One thing about Mufstains is that the aftermarket support is miles ahead of my Eclipse. When I get rid of the GTO, I'm thinking of getting one like yours.
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93 GMC Typhoon: new money pit/PITA. Now GT3788R powered.
Boost, because sometimes atmospheric pressure just isn't enough.
"If it has tit's or tires, you can be pretty sure your going to have problems with them..."
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06-17-2011, 09:11 PM
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#16
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pain's fun, hit me again
Join Date: Sep 2009
Posts: 6,264
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I'll be here to help, restorations and suspension for mustangs are my bread and butter. Plus I have all the specialty suspension tools as well, bumpsteer gauge etc
__________________
Quote:
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Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him
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06-18-2011, 12:00 AM
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#17
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Senior Member
Join Date: Jun 2009
Posts: 2,509
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I'm not much of a Ford fan, but I'll turn to the "dark side" for an easily modified car.
__________________
93 GMC Typhoon: new money pit/PITA. Now GT3788R powered.
Boost, because sometimes atmospheric pressure just isn't enough.
"If it has tit's or tires, you can be pretty sure your going to have problems with them..."
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06-18-2011, 12:15 AM
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#18
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pain's fun, hit me again
Join Date: Sep 2009
Posts: 6,264
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Parts for foxes are cheap
__________________
Quote:
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Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him
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06-18-2011, 12:25 AM
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#19
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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My heads (milled 4.8 truck heads) were advertised at like 11.1:1. On hot days in the summer, it'll knock. Of course the CA summer blend *might* have something to do with it. I've since gone to a 160 Tstat, which should help too, but I've traditionally run roughly a cup of Torco per 15 gal tank, and that gave the slight margin I needed. I worked out the calcs once and it was something like 92-3 octane when I was done. HOWEVER, I did and still do have some fairly gnarly back pressure, which raises combustion temps even further, so some good headers and that problem might be gone altogether on 91.
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Motorgen on
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Motorgen Project Car
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(active)
Motorgen Project Car
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(back burner)
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06-18-2011, 01:59 AM
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#20
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pain's fun, hit me again
Join Date: Sep 2009
Posts: 6,264
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I'll know more exactly what it is when I get back and the engine is finished
__________________
Quote:
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Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him
|
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