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Old 08-07-2016, 12:19 AM   #1
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Default Zr1 jokers ported blower va ported blower

So today my customer Thomas riddle took his car to the Dyno at KP racing. He had previously dynod with another company ported 108 Lingenfelter snout ported snout with ported blower and ported runners then refined and Cleaned up by KP racing. Car made 775 hp on 76% e85. The car wasn't making the power it should. I then was contacted and I got a new blower ported it. I modified the zr1 snout by welding it and porting it a lot more. Then did my Lingenfelter snout to zr1 blower port. I did not touch the runners. They switched over to ignite e85 and tested that at 86%. There were no changes in timing from tune to tune. I will say the fuel probably added 30 horsepower tops. But to see the gains of 75 hp over another companies ported blower with runners. Just shows even at 850 hp you don't need to port the runners. Both Dyno pulls started with iat2 temps within 5 degrees of each other. Also the temps ambient were hotter today (100*) then they where on the last Dyno day. There was no change in iat2 temps between these two blowers. No drop in boost between the two. Nothing on a sensor or Dyno sheet to show flow increase helps the blowers efficiency. I killed the ported runners blower. It's a proper blower port. But to see a just on the low end 20 plus hp difference is huge. I thank Thomas riddle for the opportunity to work on his blower and his car. All this was done on a mustang Dyno at KP racing in Texas.

Mods are
850rwhp Blower Only

2010 ZR1

Joker Performance ported blower
Stage 3 camshaft
2" ARH Headers no cats
108mm Southways Throttle Body
Kp Custom Air Induction

Nitrous Numbers to Follow

Before and after Dyno first picture


Jokers performance ports

Need anything ported or polished or both pm me

700 hp 4 door Harley truck
435 hp lightning for sale
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Old 08-07-2016, 07:23 AM   #2
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Very nice dude!
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