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Maximum boost on pump gas L96

Old Mar 9, 2016 | 10:11 PM
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Default Maximum boost on pump gas L96

Just finishing up the single 76mm turbo airboat build. Heading to get tuned next week!! On 91 octane with a charge air cooler and tc78 turbo with 9.5 compression where is normally the cut off for boost due to detonation. Trying to find a safe boost level yet get the most out of it. Deka 80lb injectors, stock 2010 L96 with cam,valve springs, and pushrods. Thanks guys!!
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Old Mar 9, 2016 | 10:12 PM
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Old Mar 9, 2016 | 10:18 PM
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following...
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Old Mar 9, 2016 | 10:46 PM
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loaded question

its like asking how much trash can you fit in a trash can
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Old Mar 9, 2016 | 10:56 PM
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Originally Posted by denmah
loaded question

its like asking how much trash can you fit in a trash can
Are you saying alot????😎😎😎
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Old Mar 9, 2016 | 11:15 PM
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Originally Posted by denmah
loaded question

its like asking how much trash can you fit in a trash can

edcute me!
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Old Mar 10, 2016 | 01:18 AM
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Originally Posted by denmah
loaded question

its like asking how much trash can you fit in a trash can
Exactly, boost pressure doesn't mean anything in comparison to actual cylinder pressure.

I've had customers make well over 1000rwhp on 93 octane + meth and easily make 800rwhp or more on straight 93 octane with no meth and live a long and happy life. Granted these were built forged rotator engines and not stock bottom end engines. In terms of absolute longevity with a stock bottom end engine, keeping them at or under 700rwhp seems to be the ticket. Others have luck pushing them past this point, but in all reality they're a ticking time bomb waiting to go off.

All comes down to the tune...
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Old Mar 10, 2016 | 06:47 AM
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Thanks! Just looking for a general idea...so I guess less than 50 and more than 2 psi😃
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Old Mar 10, 2016 | 08:24 AM
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Depends on timing, IAT, fuel, etc. Too many variables. There isn't an answer to the "I have X motor with X done to it, how much boost will it take, how much HP will it make". Tune it, dyno it, optimize your tune for your driving/activities and then you will have your answer. If it grenades, then you went too far.
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Old Mar 10, 2016 | 09:02 AM
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Originally Posted by Black89Z51
Depends on timing, IAT, fuel, etc. Too many variables. There isn't an answer to the "I have X motor with X done to it, how much boost will it take, how much HP will it make". Tune it, dyno it, optimize your tune for your driving/activities and then you will have your answer. If it grenades, then you went too far.
Fair enough, near impossible to dyno a airboat unless pulling the engine
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Old Mar 10, 2016 | 10:05 AM
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I would have ditched that MAF lol

Use an engine dyno, don't always have to use a chassis dyno for dialing it in.
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