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SVTPerformance's Chain of Restaurants
The Blower Bistro
What's a safer combo: low boost more timing, more boost less timing?
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<blockquote data-quote="ANGREY" data-source="post: 16419934" data-attributes="member: 188865"><p>I'll frame the question with some parameters so it doesn't turn into a "what's better money or love" type debate.</p><p></p><p>1) Assume you were building a high compression (12:1) modern motor with VCT, and a full build capable of handling way more power theoretically than you were wanting to run.</p><p></p><p>2) Assume plenty of fuel and injector capability to set the A/F as safe or moderate and hold it there under any conditions and you're running E-85 as fuel.</p><p></p><p>Let's say you built the motor and all the component parts to handle 1500 hp (huge intake and TB, more than capable fuel system, long tubes, upgraded valve train, rock solid drive train, etc), but you really over-engineered it so that it could safely run 1000 hp with plenty of spare safety.</p><p></p><p>Would it be "safer" or less risky to run large amounts of boost and conservative/safe timing (keep in mind it's 12:1 compression, but also E-85) </p><p></p><p>OR would it be preferable to keep the boost moderate and advance the timing further out?</p><p></p><p>Basically, if you have room to spare and desire a lesser hp/tq level than the motor is capable of handling (and high compression and E-85) is it better to run 18 psi and very safe timing or run 15 psi and bigger timing?</p><p></p><p>Does it make more sense to run a smaller pulley with less timing or a larger pulley with typical 20-22 degrees of max timing?</p></blockquote><p></p>
[QUOTE="ANGREY, post: 16419934, member: 188865"] I'll frame the question with some parameters so it doesn't turn into a "what's better money or love" type debate. 1) Assume you were building a high compression (12:1) modern motor with VCT, and a full build capable of handling way more power theoretically than you were wanting to run. 2) Assume plenty of fuel and injector capability to set the A/F as safe or moderate and hold it there under any conditions and you're running E-85 as fuel. Let's say you built the motor and all the component parts to handle 1500 hp (huge intake and TB, more than capable fuel system, long tubes, upgraded valve train, rock solid drive train, etc), but you really over-engineered it so that it could safely run 1000 hp with plenty of spare safety. Would it be "safer" or less risky to run large amounts of boost and conservative/safe timing (keep in mind it's 12:1 compression, but also E-85) OR would it be preferable to keep the boost moderate and advance the timing further out? Basically, if you have room to spare and desire a lesser hp/tq level than the motor is capable of handling (and high compression and E-85) is it better to run 18 psi and very safe timing or run 15 psi and bigger timing? Does it make more sense to run a smaller pulley with less timing or a larger pulley with typical 20-22 degrees of max timing? [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
What's a safer combo: low boost more timing, more boost less timing?
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