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Originally Posted by MILD THUNDER
(Post 4265719)
That engine was not a low compression turd. Not bad for a low compression 87 octane build. It was not lacking low end torque. Not bad for a 454 with race rite heads and their standard non raised exhaust ports.
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Originally Posted by SB
(Post 4265722)
What carburetor was on that ? By the BSFC's it appears on paper that it may have been too small.
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Something was out to lunch. You have a wideband a/f report on that run ?
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Originally Posted by SB
(Post 4265725)
Something was out to lunch. You have a wideband a/f report on that run ?
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Otay but it has brutal BSFC's.
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Originally Posted by SB
(Post 4265739)
Otay but it has brutal BSFC's.
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Fuel Flow and Horsepower. That is all that is involved.
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Yep, BSFC's were horrible with my carbs as they were. They were "normal" with the shop's carb and still had same power numbers, go figure..Carbs were set up out of wack I believe
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Originally Posted by SB
(Post 4265751)
Fuel Flow and Horsepower. That is all that is involved.
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Originally Posted by MILD THUNDER
(Post 4265701)
Ramos48 here Rebuilt his 454 mags last year. Brodix 294 rect port race rite heads, mild hyd roller , a tad under 9:1 static, made 507hp at 5600rpm. 544ft lbs at 3800rpm. Can was 227/233 duration. This engine was not dead at 5200rpm.
Looking at that dyno chart- I would see zero reason to prop that engine anything past 5100…. 5200-5300 the engine is losing power, at 5400 it's up 3 hp , then its down at 5500, and at 5600 it's up 6 hp over 5100 rpms. In my book, that engine is done at 5100 rpms.. |
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