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  #46 (permalink)  
Old 05-07-2004, 04:19 PM
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Aluminum bearings ? WTF
I think anyone would know forged pistons are obvious & a roller valvetrain to for that matter. Eagle rods? kinda general remark, dontcha think? I mean Eagle is an ok rod...& they do make a low cost standerd issue Ibeam rod & also a Hbeam. Oh well, those comments were from the guy who says he hates Chevy guys.

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  #47 (permalink)  
Old 05-07-2004, 04:25 PM
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The racingjunk ad states dyno'd with 107 octane race gas
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Old 05-07-2004, 07:18 PM
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They ran 107 in it, but on 10.8 compression and aluminum heads, that is easily a pump gas motor. My dad has a 383 with 11:1 compression and aluminum heads that has never seen more than 93 octane and dynoed at 444 RWHP.

Adam
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Old 05-07-2004, 08:09 PM
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I never stated it would not run on pump gas. But the dyno sheets are a proven 600 hp on race gas. You drop that to 93 octane and you are going to lose a decent number in the power department. On 93 I would say that is getting close to the 444 rwhp you are seeing in your father's engine. Run race fuel and you will see an improvment. As stated earlier in the thread 500hp/na is quite reasonable but add another 100hp and that goal is much farther than it seems
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Old 05-07-2004, 10:18 PM
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Ok, I see what you were saying. You are right, race fuel will add a little more hp due being better quality and having a slightly higher oxygen content. I have seen dyno tests on pump gas motors with 93 and race fuel, and on race fuel, and the motor gained around 20 hp. So that motor probably has closer to 570-580.

Adam
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Old 05-08-2004, 03:04 AM
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here is what it really takes: http://www.musclemotorsports.com/streeten.html its available in a 600 Hp pump gas version or a 750 race gas version (many of the parts are used winston cup goodies- hence the low price) . in a home build i think your money is better spent adding forced induction. stroking a 350 to a 383 only adds 33 ci, at 1.5 Hp per ci you are only talking 50 Hp, IF and only if your heads, intake, carb and exhaust flow the additional 14% otherwise youll only increase the output in the lower rpm range, and 14% additional torque is a good thing, but it doestn nessecarily translate to 14% more top end Hp.

here is a run down of the parts in the 600Hp build, try that on that budget (12-14000):

355 – 360 cubic inches Compression ratio 10:1 runs on “pump” gas
Block: Chevy BowTie, 4 Bolt Mains, Splayed Billet Caps
Pistons: Forged Aluminum Alloy, J&E or equal, Bore 4.125
Crank: Billet Sonny Bryant, Stroke 3.335, 37-45 lbs. 2.0 or 2.1 rod journals
Rods: Carrillo or Lentz 6.20” H beam. Carr Bolts
ATI Balancer
Heads: 18 Deg. CNC Ported Aluminum Chevy Cylinder Heads w/2.150 Titanium Intake Valves, 1.6000 St.St. exhaust valves, Comp Cams triple valve springs, Titanium retainers and keys, Copper Berylium Valve Seats, Heads Flow 330 cfm @ .700 lift.
Cast Aluminum Chevy Valve Covers, personalized for owner
Jesel shaft mounted roller rockers 1.65 ratio
Cam: Competition Cams Solid roller, 110 Deg. Centerline, Lift= 605 intake and exhaust, Duration 300 intake and exhaust
Lifters: Competition Cams true roller lifters
Wilson Intake manifold and Tapered 4 Hole Spacer 2.00" Part# 004150
Quick Fuel 750 cfm “Street Carb”
Oil System: wet sump: Milodan Internal Pump w/ competition sheetmetal pan
Oil System: dry sump, external pump Barnes or equal
Specifications subject to change (typical specs. may be adjusted for customer requirements)
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Old 05-08-2004, 08:35 AM
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Race gas does not make more power, it ALLOWS you to make more power (meaning higher compression, more timing, boost, nitrous, etc...) If you have a 9:1 engine that runs fine on 89 octane and you fill it up with race fuel, the car will not be any faster. This is a common mis-understanding. Now if we are talking nitro that is different but, race gas does not make more power just by filling up your tank with it.

Royce
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  #53 (permalink)  
Old 05-08-2004, 08:42 AM
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Quote:
Originally posted by granprix76
camaro7d yes there are a few people selling different motors (455 street motors). Bruce Fulper from Rock n'Roll Engineering. He claims to have a 455 King Street that runs on 87 octane that puts out 617#ft and 600hp

Bruce Fulper?

Check this out:

http://home.earthlink.net/~rvandegrift/fulper.htm

tom
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Old 05-08-2004, 11:41 AM
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Camaroman, I understand what you are saying about race fuel allowing you to make more hp, and not adding hp, but I have seen tests with pump gas motors that did not need race fuel (9.9:1 with aluminum heads) that gained 15-20 hp running 114 octane over 93 octane pump gas. The people who did the test claimed that the extra hp was due to the race fuel having a slightly higher oxygen content and fewer power robbing additives than the pump gas. Most gas from the pump has emission additives that will slightly hurt performance.

Adam
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Old 05-08-2004, 05:07 PM
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Suppercharger or twin turpos. Period
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Old 05-08-2004, 08:22 PM
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Quote:
Originally posted by machine shop tom
Bruce Fulper?

Check this out:

http://home.earthlink.net/~rvandegrift/fulper.htm

tom


wow, that guy is still in business?
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  #57 (permalink)  
Old 05-08-2004, 08:42 PM
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Oh yeah, check his sight out. Doesn't seem right to me!

http://www.pontiacengines.com/


tom
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Old 05-08-2004, 08:58 PM
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Quote:
Originally posted by camaroman7d
Race gas does not make more power, it ALLOWS you to make more power (meaning higher compression, more timing, boost, nitrous, etc...) If you have a 9:1 engine that runs fine on 89 octane and you fill it up with race fuel, the car will not be any faster. This is a common mis-understanding. Now if we are talking nitro that is different but, race gas does not make more power just by filling up your tank with it.

Royce
NITRO!!!! add 15-20% to 87 octane pump gas and maybe then I could get that 600hp on punp gas.......from a 383...lol then maybe fog the dyno cell with nitrous too! hey! lets go for 700hp on "pump gas" lol.....

I think I personaly will take the advice and build it for 500-525hp N/a Ill just top it off with a mild nitrous kit....that way I can call it a "grocery getter" lol

Quote:
Originally posted by machine shop tom
Oh yeah, check his sight out. Doesn't seem right to me!

http://www.pontiacengines.com/


tom

hmmm, he just blew that guy off because he didnt want to build it the way he wanted to, thats what it looks like to me, and wow did that guy charge him! if someone paid me 3,000$ for a stock rebuild you can bet if I didnt do anything Id make it pretty! ...lol

Last edited by 2wld4u; 05-08-2004 at 08:58 PM.
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  #59 (permalink)  
Old 05-09-2004, 03:15 PM
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Race gas will make a power difference this is not a misconception. When my engine was dyno'd on 93 octane it had 431 hp and stepped up to sunoco 103 and had 448 hp
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  #60 (permalink)  
Old 05-09-2004, 04:10 PM
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Quote:
Originally posted by syclone
Race gas will make a power difference this is not a misconception. When my engine was dyno'd on 93 octane it had 431 hp and stepped up to sunoco 103 and had 448 hp
agreed. camaroman70d is just a hotshot know it all most of the time. dont bother to argue with him.
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