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Author Topic:   Clevelands on the bottle?
MrWesson22
Gearhead

Posts: 1286
From: Dacula, GA
Registered: Sep 2000

posted 07-02-2002 02:11 AM     Click Here to See the Profile for MrWesson22   Click Here to Email MrWesson22     Edit/Delete Message   Reply w/Quote
Anyone running giggle gas on a cleve? I'm wondering how much my engine would reliably take.

72 4 bolt block, stock reconditioned crank and rods (arp rod bolts), unknown brand forged pistons. Any other pertinent info?

I'm thinking when I get used to the feeling of ~450hp under my right foot, a little spray might give the vettes an extra something to think about.

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Neal
Member #723
[email protected] AIM: MrWesson22

69 Gulfstream Aqua Grande
351C/Toploader 4sp

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jkilroy
Gearhead

Posts: 1808
From: Vicksburg, MS
Registered: Dec 99

posted 07-02-2002 08:53 AM     Click Here to See the Profile for jkilroy   Click Here to Email jkilroy     Edit/Delete Message   Reply w/Quote
Whats your compression ratio? With stock style rods and crank I would keep it at or below a 150 shot. I am not saying it would not take more, but I have always been cautious.

Even with a 'small' shot you need to really buff up your fuel system to have adequate fuel pressure. Are you using a mechanical pump or electric? How about your fuel line sizes? How about hood clearance with a plate? (I assume you are going to run a plate as an 'entry level' system)

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Jay Kilroy
68' Fastback GT 390
"No such thing as a cam thats too big"

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Fordwiser
Gearhead

Posts: 442
From: Metamora, Illinois
Registered: Dec 2000

posted 07-02-2002 01:29 PM     Click Here to See the Profile for Fordwiser   Click Here to Email Fordwiser     Edit/Delete Message   Reply w/Quote
I wouldn't think the bottom end would have a problem with it. I would be more worried about splitting cylinder walls. Since you said you have forged pistons and it has been rebuilt, most likely you're at .030 over, I'm sure you know about the core shift problems. Nitrous builds a lot more cylinder pressure, especally if there is any detonation. If you try it I would go overboard with octane and back off the timing even more then recomended.
Roger

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MrWesson22
Gearhead

Posts: 1286
From: Dacula, GA
Registered: Sep 2000

posted 07-02-2002 10:30 PM     Click Here to See the Profile for MrWesson22   Click Here to Email MrWesson22     Edit/Delete Message   Reply w/Quote
Compression is 10.8:1, but I'll be running straight race gas when I run nitrous (if I do), so that won't be a problem. By the time I do it, the fuel system will not be an issue. And yes, it is a 4.030" bore. I'm mainly wondering what the bottom end will hold assuming everything else is up to par.

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Neal
Member #723
[email protected] AIM: MrWesson22

69 Gulfstream Aqua Grande
351C/Toploader 4sp

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John Holloway
Gearhead

Posts: 1014
From: Romeoville Illinois
Registered: Jul 2000

posted 07-02-2002 10:41 PM     Click Here to See the Profile for John Holloway   Click Here to Email John Holloway     Edit/Delete Message   Reply w/Quote
when I had the 351-c in my mustangII I was running 11.5 to 1 pistons with 125 shot of sauce ran great on the street.Just like kicking in passing gear under full throttle with a push of a button!

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