Quote:
Originally Posted by 750hp
Just trying to understand your thought process. If it's a mild and relatively low-maintenance combination that makes more power and torque than you wanted, why does it matter how high you can spin it?
Do you want high rpm capability, bulk streetable low rpm torque, good gas mileage, lightest possible weight, maximum horsepower, no maintenance, or a budget crate engine? Brent can incorporate a number of these things, but not all of them...  |
It doesn't matter but I was just asking for that type of combo what the RPM range would be. When you go on 460ford and read all the build threads people are spinning those things from 5500-7000 and making all sorts of different power. I was just wondering with what Brent had mentioned where he was at with the RPM.
Quote:
Originally Posted by Gaz64
Agree.
700/557 = 1.25hp per cubic inch.
Sounds like a combo that would blow the tyres off, from anywhere in the rpm band.
Who cares about how high you can spin it?
Sure you could spend another 30k on it to spin to 9000 rpm and make 1000+hp but you won't get 150000 miles out of it.
It's all about compromise and making a suitable package for the intended usage.
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I was inquiring about the 557 he mentioned. I don't see the point in a wild big block in one of these cars. It seems like a mild big block would allow you to have more power than you could use and never leave you wanting more.
Quote:
Originally Posted by blykins
It's hard to have your cake and eat it too. High rpms don't jive with streetability, ease of tuning, longevity, etc.
A big inch BBF would probably make that kind of horsepower on 87 octane at 6000 rpm.
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I would be fine with 6000RPM.....I took an 80 mile spin last night and I may have hit 6000RPM+ a single time. 90% of the time I'm between 2000-4000K but I like the big power up top. I'm lucky to have access to 93 octane here but that is pretty encouraging to think you could make close to 700hp on 87. I'm assuming your torque would be close to 700 as well.