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18 GT A10 Procharger 4.25in pulley

Chris Barnes

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My 2018 stage II P1X kit came with a 4.75 pulley and a K080660 belt. I see 8.5-9 psi. Depending on your fuel, you may octane limited at that boost level like I was before switching to a methanol system. Good luck.
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Brandon91

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My 2018 stage II P1X kit came with a 4.75 pulley and a K080660 belt. I see 8.5-9 psi. Depending on your fuel, you may octane limited at that boost level like I was before switching to a methanol system. Good luck.
Are you using a BAP? Iā€™ll order a 4.75 just in case the 4.5 I ordered is to much for 93. I just picked up the same belt today just in case the K080655 is to small.
 

LSchicago

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Maybe yes. Id work my way to that pulley not start with it.
I have to switch to a 4.50 pulley to get the 93 base tune before Lund will tune for E85.
 

LSchicago

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Are you using a BAP? Iā€™ll order a 4.75 just in case the 4.5 I ordered is to much for 93. I just picked up the same belt today just in case the K080655 is to small.
My car tuned very well on a 4.5" pulley (P1X) and 93 Octane.
 

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Brandon91

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My car tuned very well on a 4.5" pulley (P1X) and 93 Octane.
Iā€™m on a 4.5 now, 93 and running 8 ounces of boostane. I also just installed a MAK intake as well. The car is a blast!

Iā€™m waiting on headers and opgā€™s now.
 

LSchicago

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Iā€™m on a 4.5 now, 93 and running 8 ounces of boostane. I also just installed a MAK intake as well. The car is a blast!

Iā€™m waiting on headers and opgā€™s now.
Now tuned on E85. This thing screams. Soon going to 4.25" Griptech.
 

schmeky

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Brandon91,

I'm on the 4.75 pulley, 93 octane, and 1/2 ounce Boostane per gallon for an adjusted 99 octane. Mine rips.
 
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Brandon91

Brandon91

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Now tuned on E85. This thing screams. Soon going to 4.25" Griptech.
Iā€™m definitely going E85 later this year.
Brandon91,

I'm on the 4.75 pulley, 93 octane, and 1/2 ounce Boostane per gallon for an adjusted 99 octane. Mine rips.
I always fill up at a 1/4 of a tank or at least try lol. Typically itā€™s about 13 gallons. I plan on running e85 eventually, probably when I switch tunersā€¦.

Having owned all 3 types of forced induction this is my favorite.
 

TKM Conbread

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Im running a D1x with 4ā€ pulley stock motor 2020ā€¦ Made 873 on 93 with some additiveā€¦. Makes 18psiā€¦. now on e85 tune prob makes in the 930-950 rangeā€¦..

but she took out the A10 šŸ˜‚šŸ˜‚šŸ˜‚ only 7000 miles on the car..
 

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silverbullet85

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Im running a D1x with 4ā€ pulley stock motor 2020ā€¦ Made 873 on 93 with some additiveā€¦. Makes 18psiā€¦. now on e85 tune prob makes in the 930-950 rangeā€¦..

but she took out the A10 šŸ˜‚šŸ˜‚šŸ˜‚ only 7000 miles on the car..
Yeah a 1000 hp will do that
 

SJ-KY

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Im running a D1x with 4ā€ pulley stock motor 2020ā€¦ Made 873 on 93 with some additiveā€¦. Makes 18psiā€¦. now on e85 tune prob makes in the 930-950 rangeā€¦..

but she took out the A10 šŸ˜‚šŸ˜‚šŸ˜‚ only 7000 miles on the car..
You running a crank brace/support on that set up? I assume itā€™s a stage 2 8rib?
 

Drpaul09

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I run a 4.5 and make 680 rear wheel... car has run 10.20 at 138.8. Lund doesnā€™t recommend any more pulley than that on my car with pump gas. Next time to track I may drop to a 4.38 and dump 5 gallons of ms 109 in the tank. Also my kit shipped with the 4.5 pulley
hi gregory347. Was 680 rwhp on 93?
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