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Originally Posted by ADM PERFORMANCE
Nice product you got there!
For all the Camaro guys that don't know who Jim Hall is..He is a Heavy hitter in the Corvette world.Hell I ran my Fastest times ever in My C-5 Z06 back when I was working at 21ST Century Musclecars using his ever so BASIC air bridge and filter...This car still lives and retains his product on it,But by someone else.
Glad to see you came on board,Just don't understand why it took you so long! 
Andy
Owner- ADM PERFORMANCE |
Thanks Andy, we try. The bottom line on the the Camaro induction as we see it, is proper MAF meter placement and the sq. inches of area at that read. Accuracy in the MAF read, makes all the difference in the world with this motor. We spent 6 weeks getting it right.
Power will be pretty close from intake to intake, with minor differences. A 4" tube will flow X amount of air, but the point of restriction in the LS3 will likely be the throttle body at 90mm, not the 100mm tube. After that the filter size and type will make some difference.
The PowerCore failed completely in our testing, which is really too bad, since it has incredible flow numbers and perfect filtration. The problem is that the center of the PowerCore has a rubber fill, which creates an airflow hollow right in the middle of the otherwise very clean air. That fools the MAF meter into thinking there is less air than there really is, creating lean codes.
The massive filter we now use is ISO 5011 Certified, which means it has 99.4% filtration, and because of the massive surface area, we can double the cotton gauze to 8 layer (most other filters are 4 layer) and still flow numbers that will provide 700+ HP motors. This is the same media used in our Killer Bee induction for the C6Z06. We have a 650HP motor running this type of media, so we know it flows.
Our dyno test was done by an independent shop(MSI) in Appleton, WI that has no connection with our company at all. In fact, I stood by the wayside and just swapped out intakes, they did the rest.
One more point, which bears full disclosure. Our car came from the dealer with the GM HP mufflers, which contributed to the stock pull and our Yellow Jacket pull. At 369 RWHP stock, it looks like they contribute a few HP to both stock and Halltech's Yellow Jacket. We did not know they were added at the dealership until we looked under the car.
The other Camaro that they dynoed a few weeks ago, was bone stock for the first pulls, then a competitor's CAI, full length headers, high flow cats, and high flow mufflers (don't know the brands) and it only beat our setup by 3 RWHP/3 ft. lbs torque. So apparently our Yellow Jacket and factory exhaust (except for the mufflers) nearly matched a much more aggressive and expensive package.
The last two pulls were done with our 102mm MAF housing, and some programming to scale the MAF tables for this unit. There was no increase in hp or torque. We then changed the commanded air fuel ratio to 13.3:1 from 12.3:1 and once again we saw no appreciable increase in power. That is a first for me. In 8 years of programming, we always pick up 5 to 10 RWHP with a one point bump to lean.
It is what it is.
The silver lining to this is that our intake ran 12.3:1 air fuel ratio without any tuning. Most folks are aware that tuning your Camaro will void you warranty if the motor lets go.