Here is the dyno run from their website....that is an easy 30-40 hp for $600

 

I am no expert but does it seem that the increase in hp and torque only exists for a span of 1,000 rpm between 5,500rpm-6,500rpm?
Bish

 

Yup, so don't come out of that range...

 

Has anyone here seen the dyno sheet from Smokey's with the Halltech intake No Tune. Looks pretty impressive to me.

http://cimg5.ibsrv.net/gimg/www.corv...4177ab41d6.jpg

 

On that dyno sheet the most gain is around 3800 when the torque curve shows the most gain against the stock run then it narrows a little and runs parallel all the way out. Running parallel tells me a restriction has been removed but there is another one somewhere. Either that intake has hit it's maximum or any area after that. From there it usually gets a lot more expensive! Blower, heads....., and what goes in has to come out. I'm starting to think it runs pretty good just like it is. Nah!, maybe just an intake. And a shifter. And maybe a......

 

Everyone is looking at the HP increase I like the torque increase even more than the hp. Both are very impressive as they both show an increase all the way up the rpm range. Also more impressive is the halltech Cai has been very consistent with 3 different tuners/ performance shops all within a few hp/tq. Of each other. I can not wait to have my Z this will be my first mod.

 

I learned a lot from my Duramax days on the different types of filters. After extensive scientific testing performed by a filtration expert on all brands of filters, the factory filter actually provided the best overall combination of protection and airflow. The gauze/cotton type oiled filters provided good airflow but the filtration wasn't good. I personally experienced this when I could wipe my finger in the tube and leave a clean mark in the fine dust build up. I went back to the factory filter and no problem. This was 10 years ago so things may have improved since then. I'm not really going to drive my Z06 down the Northwest Texas red dirt roads so it may be just fine for it but I can understand if someone at GM expressed a concern.

 

Not always true!
Depends if you started off cold or warm!

 

A/F is only half of it....the lower restriction filters also provide close to one full PSI of boost increase due to their added CFM airflow which is why the GM engineer responsible for this should be fired and sent to work for Ford or Mopar to keep their Product Lines inferior......the aftermarket didn't take but a few hours of research to figure this out! This is another reason I posted my question to Tadge on this subject and we still have plenty of dimwit's who want to defend GM's choice of air intakes

 

You're surprised there are aftermarket gains to be had with the intake? Welcome to every car ever mass produced... Goals were set, the goals were exceeded while staying within X budget, end of story. The exact same can be said for the manifolds, heads, cam, etc. Be glad such gains can be so easily had, it just speaks to the potentness of the car.

 

BW and others...

I want to apologize for popping off last night. I had a rough day with the sportsbook and was not in the greatest mood thanks to college football. As far as respect being earned though, I see if differently. The forum should be open to knowledge and not use post count as a proxy for bench time. Coming from Mustangs, that's all we did was mod. Owners were relatively broke, very little cash to outsource gains as some here can. I've done blowers, turbos, you name it on multiple cars. I own an SCT software license and have customized my own tunes. So when 50whp intakes came along (60-75 at the flywheel), it didn't take long to figure out what was going on...and as a nod to this board enough have posted up to cover the jist of the issue.

What I can tell you guys is this. If you are unknowlingly running higher A/F you can kiss your warranty goodbye if you hurt the motor. That's all indirectly stored data and the automakers intently employ forensics on high HP enthusiast cars. Honestly, anytime you are dealing with forced induction, you want to be MORE conservative with the mixture and not less when modding. In my opinion, the last thing you want to do with an LT4 is unknowlingly lean out an already hot motor.

As I mentioned over PMs yesterday, I have absolutely no issue with the Halltech or any other intake offerred here. They seem like great products with great build quality and I do not doubt the gains! Seriously, I may consider one someday along with a tune of course. My issue is simply disclosure. As I said, these motors are already running hot and these intakes don't appear to be K&Ns lol.

Have a great night everyone.

 

The last post here was almost 9 months ago. Who exactly were you popping off to? Also I'm sure most people understand they could possibly void the warranty if an engine failure was caused by this Mod, so you really aren't contributing anything new.

 

Has anyone measured the diameter of the MAF section of the aftermarket intakes and compared it to the size of the factory MAF?

 

But I also see an A/F ratio change from 11.0 to 12.84, how much power is due to the leaner A/F? and how much due to flow? Anyone have an apples to apples comparison? I'm looking for the upgrade and as usual want the best solution (with data of course).

 

My guess, is because there is little to be gained doing this, as stock system is near perfect already. But some are still drawn to the snake oil salesman.