Originally Posted by 66 MYSTERY CHEVELLE
YES, That's why it's called a Cowl Plenum Air Cleaner
Contact Nelson.. he's good people... it's an exact REPLICA of the the Originals.. But... if you are buying this b/c you think you are going to increase your HP or something.. save your money all $1800.00 worth.. if it's cool Factor you want.. go for it! $500.. won't give you cool.. it will just give you a look IMO
Once again we have somebody spoutin off his opinion without knowing the slightest thing about the facts. You might wanna try READING a little before you go telling people what works and what doesn't. Try this for starters, Camaro-Untold Secrets by Wayne D. Guinn. You'll find an excerpt from this book online called Camaro Super Scoop. For all you Chevelle owners out there, you will find this a very informative article that explains the science behind your beloved Cowl Induction hood. Next time you're hangin' out at the local gathering and someone says "it's just for looks" you'll know what's what.
The FACT is, for every 11deg drop in intake temperature you make a 1 percent horsepower gain. Since we all know that underhood temps are fairly hot, it's not unreasonable to assume a 43deg drop is easily possible. On a engine rated at 350hp a 43deg drop in intake temp = 4 percent or 14hp. That's 14hp just from adding a cold air intake. The article is about the Cowl Hood and it's developement but the facts are the same.
What they're after is the higher air pressure found at the base of the windshield. It's about 2-3psi higher. So not only do you get cooler air, you get pressurised air. Why do you think every car in NASCAR uses a cowl plenum intake at the base of the windshield?
$1800, no freakin way. I don't care if it's a replica or not. The price is way too high and I would never pay that much for one. $200-$300...maybe. But I can go to RamAir and buy one of their housings, fabricate a tube to the firewall and achieve the same effect. And for a lot less money too.
Too much money for what you get, I agree. No horsepower gain, wrong. You are entitled to your opinion but next time you might want to express an EDUCATED opinion. IMO.