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Old 09-12-2009, 02:26 PM   #18
d69chris
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Add my name to the list of HAPPY customers of Roto-Fab CAI's.

Why Roto-Fab? Good customer service, excellent product (plastic or metal), packaging, & fitment, mates up well to HP adding devices (future mod). If there are differences in CAI's, I believe they will be small and overcome by
$$ 1K of greenbacks!

Easy to follow color instructions, packaged hardware by usage, foam packed unit in box to avoid damage. Went together in under 1.5 hrs.

I will say instructions said to pull stock air box straight up and there will be some resistance........back studs gromet was pinched during install at factory and it was like screwed on. Resistance stopped when removing when plastic mounting ear decided to give up the fight! Had to unscrew the rubber gromet and metal washer. Not Roto-Fabs fault. Just something to watch for.
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Old 09-13-2009, 11:29 AM   #19
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NICE !! I like how you modified the engine cover. That looks great and reduces any heat trapped underneath. I would like to see more details on this mod.
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Old 09-13-2009, 12:46 PM   #20
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Looks good...

I have a question though, aside from the looks it seems to me that the oem intake with a high flow filter would be just as good. if not better. I say this in respect to the "cold air" part of the setup, or am I missing something here?

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Old 09-13-2009, 04:45 PM   #21
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Old 09-13-2009, 04:54 PM   #22
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Looks, sound, and performance!

A good set of headers will get you a 15hp gain for around $600 plus installation. $400 or less for 10hp is a deal! Exhaust cat-back might get you another 12 for $1200. Less restrictions in air flow thought system = +HP. All the way from where it sucks it up to where it blows it out.

You will read claims of 10-20 hp gain with CAI's (Cold Air Intake). I would figure 10 to be conservative. Some people have posted that they only got 10hp gain with one of the mfgs on here that is wanting to challenge all comers. I think their air filter is a little on the small side. There box also allows for more eng. compartment(hot) air to get into the filter pick up area with holes and loose fitment to fender well.

Air and water will only travel as fast as the most constricting point will allow. Sprinkler systems are designed with 2 inch trunk line feeding water to 1/2 delivery lines and all the sprinkler get the water they need. Try pushing water through a 1/2 inch line into a 2 inch. The 1/2 limits the whole system.

Look at the stock box. You will notice a smallish rectangular opening where the air enters. It then necks down to a smaller tube section leading into the box. In the box it hits more obstructions and small spaces before hitting the filter itself. Look at the surface area of the stock filter. More surface area means better breathing.

You are right that a K&N filter will breath better than the stock filter, but it will do nothing about the other restrictions in the system. My CAI is a large filter with lots of surface area inside and out, notice the end is open as well. then a 6 inch opening at the filter travels through the unrestricted pipe to the 4.5 inch opening delivering air to the throttle body and VIOLA!

This is my simple explanation to what is a complicated situation, the quest for more speed with the same cubic inches.

Happy Spending!
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Old 09-13-2009, 08:14 PM   #23
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Don't get me wrong - and your car looks great by the way - but Roto-Fab's lack what pretty much every other CAI on the market lacks... a lid, as in an actual airbox that keeps the air coming from a cold spot and not the engine bay... like a CAI should.

The design/function of the ADM Performance CAI is more in line with what a CAI should be.

Link to related thread: http://www.camaro5.com/forums/showthread.php?t=42316

Again, no flame intended here, to each there own... as long as the owner and the car are happy all is good... but, those that haven't spent the money yet should make an educated decision about the CAI they buy.
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Old 09-13-2009, 09:04 PM   #24
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Quote:
Originally Posted by Number_9 View Post
Don't get me wrong - and your car looks great by the way - but Roto-Fab's lack what pretty much every other CAI on the market lacks... a lid, as in an actual airbox that keeps the air coming from a cold spot and not the engine bay... like a CAI should.

The design/function of the ADM Performance CAI is more in line with what a CAI should be.

Link to related thread: http://www.camaro5.com/forums/showthread.php?t=42316

Again, no flame intended here, to each there own... as long as the owner and the car are happy all is good... but, those that haven't spent the money yet should make an educated decision about the CAI they buy.
As for your lack of lid statement, the hood becomes the lid in this installation. If you notice the weatherstripping around the top of the airbox. Mike with Roto-Fab has even mentioned in several places that you'll get a witness mark in the hood pad from where the airbox is sealing to it. I can assure you that the air in my Roto-Fab airbox is significantly cooler than the engine bay air.

The only pro over the RF to me is the MAF being relocated into the airbox. How much is that really going to change if the air entering the filter is already significantly cooler as it passes it? Also, honestly, I don't like the way the air-tube has to make multiple bends.

There are plenty of threads dedicated to each product so let's try and keep them in their respective places.
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Old 09-13-2009, 09:20 PM   #25
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As for your lack of lid statement, the hood becomes the lid in this installation. If you notice the weatherstripping around the top of the airbox. Mike with Roto-Fab has even mentioned in several places that you'll get a witness mark in the hood pad from where the airbox is sealing to it. I can assure you that the air in my Roto-Fab airbox is significantly cooler than the engine bay air.
Right, using the hood as the seal is understood... certainly by me and probably by most. I also understand that it's not ideal simply because it depends on a non-connected part to obtain the seal. It's great you're getting an imprint from your own setup, but that's not true for most.

I've heard good things about Roto-Fab and I enjoyed reading your write up. To each there own though.
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Old 09-13-2009, 09:30 PM   #26
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the only intelligent cai so far other than stock is gmpp retain the stock box with a bigger box for more volume and a tube without resonators
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Old 09-13-2009, 10:32 PM   #27
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Where on the ZZ website is this product offered?
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Old 09-13-2009, 11:31 PM   #28
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the Roto-fab seats to the hood, instead of a lid. The intake tube is screwed to the box. It seals across the bottom and up the fender well. The only place left to draw air it the front of the box, where the stock use to, and more volumn coming through the grill. Not sure what a lid adds that sealing to the hood would not.

I don't have a baseline, but am planning on getting my car dynoed this week, if I can find someone that knows what they are doing in my area.
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Old 09-13-2009, 11:35 PM   #29
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Scott,

Will post numbers. I believe it will gain 1000 hp and 1005 torque..........just kidding. I had to spend my money on something. Seemed good at the time. If I get a maggie, it will mate up real well.

You all need to stop making me fel bad.....

If you paint it like mine, you get 1000 bitchen points in your own mind everytime you open your hood.
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Old 09-14-2009, 01:50 AM   #30
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Scott,

Will post numbers. I believe it will gain 1000 hp and 1005 torque..........just kidding. I had to spend my money on something. Seemed good at the time. If I get a maggie, it will mate up real well.

You all need to stop making me fel bad.....

If you paint it like mine, you get 1000 bitchen points in your own mind everytime you open your hood.
LOL, that does look great.
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Old 09-14-2009, 08:35 AM   #31
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Roto-fab CAI

Quote:
Originally Posted by d69chris View Post
the Roto-fab seats to the hood, instead of a lid. The intake tube is screwed to the box. It seals across the bottom and up the fender well. The only place left to draw air it the front of the box, where the stock use to, and more volumn coming through the grill. Not sure what a lid adds that sealing to the hood would not.

I don't have a baseline, but am planning on getting my car dynoed this week, if I can find someone that knows what they are doing in my area.
We've been involved in a great deal of testing on an engine dyno with enclosed air boxes. Engine dynos are good for this because they take some of the variables out of the equation when testing various designs.
We've learned one general rule-more space around the filter means more power.
We ran box configurations in different sizes, with and without a lid, no lid and a hole cut in the box and finally no box at all. Each time we created more space around the filter, we gained power. If you can install a 2' cube to mount the filter, that's ideal!
With packaging considerations, it's not very realistic though.
The other issue is filter size-generally, bigger is better. However, an increase in filter size or changing the shape for packaging can have negative effects. The filter itself can block air from traveling around to other areas of the filter if it's too close to a wall. This reduces the effective size of the filter regardless of it's physical size.
Our approach is to use as large of a filter as possible while leaving as much room as possible around the filter. Using the hood as the lid maximizes the space available. It is important to seal off engine/radiator heat, so we do effectively address that issue as well.
We have incorporated many features in this intake that are a direct result of extensive testing and engine dyno results. With N/A vehicles, all of the "little things" really do make a difference, especially in actual driving conditions.

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Old 09-14-2009, 10:14 AM   #32
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Another happy customer here too, had mine installed on friday and im loving it.

Kudos to roto-fab for an excellent product with top notch instructions and a dynamite sound!
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Old 09-14-2009, 10:45 AM   #33
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It's great you're getting an imprint from your own setup, but that's not true for most.

I've heard good things about Roto-Fab and I enjoyed reading your write up. To each there own though.
Mine seals perfect and after a long drive you can FEEL the temperature difference so it is working.
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Old 09-14-2009, 10:54 AM   #34
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Yeah, what they said.........................

Will also try to get video with sound. The improvement there was awesome.
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