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My 14 GMC + Whipple Kit

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Old 01-18-2017, 08:55 PM
  #21  
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Originally Posted by thewrx
I am going to keep the stock manifolds and make a legit y pipe, right now its just the gutted cats w/ 3rd removed and like mentioned somewhere else it took more timing just uncorking that. I would like to do headers but same thing for a DD that is just too much noise for taking grandma to bingo or picking up customers for work.

I am flex fuel setup but was capped at 6psi with e85ish blend on stock fuel system.

The caltracs and and a set of king or fox 2.0 w/ my load leveling bags are next on the list not sure how the caltracs will play nice with a car hauler though btw.

Also getting a set of 4.11 gears w/ upgraded axles, w/ converter now so that should help without having to up the boost just yet.
I like your ideas on the cats and y and I'm thinking just working on getting the trucks to launch will be worth a lot without having a ton of expense.

Originally Posted by 07Softail
Wow 4.10's thats gonna scoot pretty good what size tire. My truck is a 14 and setup for e fuel but i can't get that stuff so I run 93 and going 10psi this weekend.

RT
Wow you're going to love the 10psi!
Old 01-18-2017, 09:46 PM
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I think so. Charlie has it running pretty damn good right now, so I will prob leave it like that for this summer and then do my 6.2 after I gather the cam, crank, pistons. I really want to get that 9.76 rear back in w/3.73's because that is the most perfect gear with the 6 speed and a 32" tire.

RT
Old 01-19-2017, 02:41 PM
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Originally Posted by 07Softail
I think so. Charlie has it running pretty damn good right now, so I will prob leave it like that for this summer and then do my 6.2 after I gather the cam, crank, pistons. I really want to get that 9.76 rear back in w/3.73's because that is the most perfect gear with the 6 speed and a 32" tire.

RT
same approx tire size too, 305/50/20, heavy *******
Old 01-19-2017, 04:04 PM
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damn right they are. I think if i put some 17's on my truck it would feel like a damn rocket!

RT
Old 01-19-2017, 06:24 PM
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Originally Posted by 07Softail
damn right they are. I think if i put some 17's on my truck it would feel like a damn rocket!

RT
yeah lost like 30 almost 40whp on dyno when we were testing it different combos, oh well thats why i have boost though to still be quick with my big *** terra grapplers
Old 01-19-2017, 06:56 PM
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With that in mind is why I chose 18's instead of 20's when I bought my truck. I researched 17 and 18 tire wheel combos on weight and diameter and it was a toss up on weight.
Old 01-19-2017, 07:22 PM
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The thing I don't like is not being able to use a 15" wheel without having to screw with the brake calipers.

RT
Old 01-20-2017, 01:40 PM
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That was just from a oem ls2 or whatever tire is on there to the terra grappler g2.

I just picked up the newest grappler tire this week for another project, the ridge grappler pretty sweet tire. Not as loud as other trail or mud tires but tread wraps around and looks pretty mean too.
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