Quote:
Originally Posted by cas951
I would agree with you here. 5hp maybe stretching too. Lastly if you combine this setup with a lightweight battery the negative effects is not worth the effort for a street car. Under drive pulleys are meant for high rpm drivin, lightweight batteries doesn't have the required amp for typical street driving.
Be careful on your diet selection combo.
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My experience confirms this 4-5 HP., but it was the cheapest performance increase I have.
Want another cheap gain 3-4 HP buy a shorter serpentine belt and skip the AC pump
My light weight battery starts the car fine in street use my car see about 7,000 miles a year never had an issue. It's 18 months old never on a tender.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
Last edited by jsceash; 01-09-2016 at 09:31 AM.
Reason: added comment
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