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The Terminator
Terminator Talk
In need of some advice on a lower
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<blockquote data-quote="ChicagoMike" data-source="post: 2831294" data-attributes="member: 7972"><p>2.93 upper and 4lb. lower or 3.1 upper and 6lb. lower.</p><p></p><p>If you go more aggressive than above, you will lose more HP and gain more TQ. The more aggressive you spin the eaton, the more TQ you make.</p><p></p><p>Example, friend has a 1.5 year old Steig port and is only running a 2.93 non-slip billetflow UPPER + 4 idlers, STOCK lower - he is pulling 498 rwhp and around 470 TQ on regular 93 octane gas, street tune. The more aggressive you boost it, the sooner the power curve will drop off at high RPM. I think my above suggestions are a good balance for strip and highway.</p><p></p><p>Oh... and smaller than a 2.90 upper = hello belt slip. Like Doug from BilletFlow told me - you want the bigger upper and biggest lower for max belt grip. Smaller upper = less surface = less grip = slip.</p><p></p><p>So heck, 8 lb. lower and 3.1 upper too! But ... you need a 3.7 alternator pulley (horsepower by hermann) and you're really going to be spinning the hell out of your water pump (go electric!)</p><p></p><p>Mike</p></blockquote><p></p>
[QUOTE="ChicagoMike, post: 2831294, member: 7972"] 2.93 upper and 4lb. lower or 3.1 upper and 6lb. lower. If you go more aggressive than above, you will lose more HP and gain more TQ. The more aggressive you spin the eaton, the more TQ you make. Example, friend has a 1.5 year old Steig port and is only running a 2.93 non-slip billetflow UPPER + 4 idlers, STOCK lower - he is pulling 498 rwhp and around 470 TQ on regular 93 octane gas, street tune. The more aggressive you boost it, the sooner the power curve will drop off at high RPM. I think my above suggestions are a good balance for strip and highway. Oh... and smaller than a 2.90 upper = hello belt slip. Like Doug from BilletFlow told me - you want the bigger upper and biggest lower for max belt grip. Smaller upper = less surface = less grip = slip. So heck, 8 lb. lower and 3.1 upper too! But ... you need a 3.7 alternator pulley (horsepower by hermann) and you're really going to be spinning the hell out of your water pump (go electric!) Mike [/QUOTE]
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Terminator Talk
In need of some advice on a lower
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