2002 Harley f150

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Feb 12, 2015 | 05:02 PM

ramair428cjxr7

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2002 Harley f150

Hey what's up ? At what point as we add performance things to our trucks do most people start thinking about getting a tuner and tune .My truck has a 2 size lower crank pulley upgrade , A oil separator , headers and exhaust out the back , cone filter and a performance intercooler .This is all new to me I usually miss with the big block stuff. I guess I should do the boost bypass

Feb 14, 2015 | 01:16 PM

JEFFFAFA

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From: Phoenix, Az.

I would have with the pulley.

Feb 15, 2015 | 11:01 AM

ChiefM

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From: Cave Spring Georgia

I agree with jeff.

Feb 17, 2015 | 02:18 AM

Stewart_H

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From: Central Coast of CA

Quote:

Originally Posted by ramair428cjxr7

Hey what's up ? At what point as we add performance things to our trucks do most people start thinking about getting a tuner and tune

Most people will add a custom tune when they add a 4lb pulley or higher. You don't need a custom tune when adding a 4lb pulley, but if you want to wring more power from the upgrade, then it is suggested.

Anything more than a 4lb pulley and you do need a tune in order to make sure the MAF is properly calibrated for the extra boost. It's not needed with a 4lb pulley because the fueling and MAF tuning from the factory can easily adapt to the extra boost.

Quote:

My truck has a 2 size lower crank pulley upgrade

That doesn't tell us how much extra boost the pulley provides. Plus, crank pulley's get bigger to provide boost, not smaller/lower.

Quote:

A oil separator , headers and exhaust out the back , cone filter and a performance intercooler

None of those mods provides any power for your truck, the pulley does, but nothing else.

Stewart

Feb 17, 2015 | 06:54 AM

ramair428cjxr7

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OK thanks. That what I was thinking to .The lower pulley is a metro size 8 ,I think . U would think with that added boost the truck would do a straight line burnout from a dead stop , around a corner it will .My other 3 cars with 400 plus hp will , and a figured a truck with no *** end weight should fry them.