Hey y'all
I recently picked up a built/kenne bell/heads/cams '02 Lightning and have a few questions:
Background
Right now the truck is running 14psi with a 8" lower and 3.5" upper on a kenne bell. The truck has been tuned by the previous owner for 14 psi 12*, 14 psi 14*, and 18 psi 14* with race gas.
Boost
Since my truck will not be daily driven nearly as much, I'm considering changing up this to 18 psi (normal); 20 psi (all-out race), all with upper pulley swaps only. What do you built/twin screw guys think about this setup? What belts should I use to correspond to these pulley sizes? How do you think I should ask for the tunes to be set up: 1x 'street' @ 18 psi, 1x 'race' @ 20 psi for cold weather 93 octane; 1x 'race @ 20 psi for warm weather 93 octane is my thoughts now.... but do y'all think I should ask for a race with race fuel?
Plugs
I looked at the plug chart and the chart leaves off at 14 psi. For your recommended boost levels + tunes (see above questions), what type, gapping, heat range plugs do you recommend as the best for my application?
Tune
Right now the truck has LT Kooks headers, catless midpipe with resonators, and JDM silver bullet catback. It sounds fantastic at WOT, but the moderate acceleration and drone is a little annoying to me, so I have a new set of JDM catted midpipes to be delivered soon. Will this change require a retune in itself, or can I wait until the pulley change/dynotune session sometime in the future to account for the cats?
Thanks for yalls input!
Mike
I recently picked up a built/kenne bell/heads/cams '02 Lightning and have a few questions:
Background
Right now the truck is running 14psi with a 8" lower and 3.5" upper on a kenne bell. The truck has been tuned by the previous owner for 14 psi 12*, 14 psi 14*, and 18 psi 14* with race gas.
Boost
Since my truck will not be daily driven nearly as much, I'm considering changing up this to 18 psi (normal); 20 psi (all-out race), all with upper pulley swaps only. What do you built/twin screw guys think about this setup? What belts should I use to correspond to these pulley sizes? How do you think I should ask for the tunes to be set up: 1x 'street' @ 18 psi, 1x 'race' @ 20 psi for cold weather 93 octane; 1x 'race @ 20 psi for warm weather 93 octane is my thoughts now.... but do y'all think I should ask for a race with race fuel?
Plugs
I looked at the plug chart and the chart leaves off at 14 psi. For your recommended boost levels + tunes (see above questions), what type, gapping, heat range plugs do you recommend as the best for my application?
Tune
Right now the truck has LT Kooks headers, catless midpipe with resonators, and JDM silver bullet catback. It sounds fantastic at WOT, but the moderate acceleration and drone is a little annoying to me, so I have a new set of JDM catted midpipes to be delivered soon. Will this change require a retune in itself, or can I wait until the pulley change/dynotune session sometime in the future to account for the cats?
Thanks for yalls input!
Mike
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