Halltech intake is kaput
for a while now and I have to say this is one of the more
amazing things I've seen. Jim Hall seems about as
honorable a person as you'll find anywhere.

too bad it didn't turn out as planned. wow, yes, how are the other folks making power, i.e. Vortex. (ram air effect ???). hhmmm... makes you wonder.

If Jim Hall can only find 3 HP...................then all the others claims are bull****, and you can take that to the bank.
BTW, I have had a BPP "cold" air intake
I have tried the "Blackwing"
I have had a K&N filter
I have tried the "home made" cut out air box (actually like the setup now coming from GM stock on our C6's)
I have had the HallTechTric
FWIW, I am going to keep my stock air box from the General, thankyou, and put the aftermarket savings into some nice polished wheels.......
The Best of Corvette for Corvette Enthusiasts






...by "they", who do you mean??
I can think of one intake off hand that makes proven power and is emissions compliant (and was tested w/ the factory cats in the stock locations
)




Halltech's C6 Stinger SSM Induction System. This system features the largest filter ever made for the Corvette, over twice the size of the Blackwing, and packs four layer oiled cotton, for the ultimate filtration for your LS2, has 30% more airflow, but falls on its face on the dyno! GM has literally put Halltech out of business. The standard Power Enrichment code in the computer is around 13.2:1 air/fuel ratio on the C6. It gets fatter around 4400 rpm and sinks to around 12.5:1, but still a decent air fuel ratio for Wide Open Throttle. Put on the Halltech C6 Stinger and the air fuel ratio drops to an unbelievable 10.8:1! Instantly. No learning curve, simply instant flood gate fuel enrichment called COTP (cat over temp protection) tables, that are now set to parameters that see the new air instantly and never allow the cats to overheat) The result: Unacceptable air fuel ratios for any high performance platform, and we have decided to scrap the C6 Project as a result.
Our market are the thousands of folks that like to do minor mods to their cars, and rarely want to reprogram the PCM.
I know that I could purchase LS2 Edit and program the a/f ratio to 13:1 and make major power, but could our customers? There-in lies our problem with this car and the new platform. The C6 was never meant to be a high performance platform. If it was, then the GM high performance Borla Exhaust would make HP on the dyno. I have yet to see any aftermarket intake or exhaust do back to back dynos the way we have done, and make power.
Here are the amazing and disappointing dyno results:
Bone Stock: 348.7 RWHP/347.6 lbs. ft. (SAE Corrected) A/F ratio 13.2:1
Halltech C6 Stinger SSM: 343.5 RWHP/339 lbs. ft. torque (SAE Corrected)
A/F Ratio 10.8:1 for the Halltech.
We cannot control the PCM on the C6, at all, the car never left the dyno, yet We did back to back before, after, and before and instantly saw the computer puke fuel into the combustion process to preserve the cats. On the road, this event does not occur as frequently, but we have decided to scrap the C6 Stinger SSM Intake, and quit further development on the Corvette at this time.
We have spent thousands of dollars in research and development, which provided flow bench numbers of 30% more flow than the stock intake, but since our customers have no way to alter the air fuel ratio, and GM has locked up the computer to the aftermarket, we have decided not to sell our system. There are computer programs about to be released, but our sales have been primarily to the guy looking for a few more horsepower for a reasonable price. We can not offer that on the C6 the way we could on the C5.
Thank you,
Jim Hall, President
Halltech Systems, LLC





I was at last years Cruise-In listening to Dave Hill speak. I remember him saying that the C6 exhaust system was so well designed, that if anyone replaced it, they would probably loose HP. Maybe he wasn't kidding.










Having just spoken with them yesterday, I can assure that your speculations are 110% inaccurate
Maybe the other intakes work because they don't flow quite as much? Could there be a certin limit above which the computer enters this mode? It sounds like an on/off phenomenon, maybe the Halltech just flows too much?
Well, I've been here for a while, and seen Jim post for a long time too, through some rough times/discussions on intakes etc. I'm sorry to hear that there (apparently) will not be an offering for the C6.
Good luck Jim!












