Cold Air intake [Archive] - ZR-1 Net Registry Forums

LGAFF

12-05-2009, 12:55 PM

Does anyone make a cold air intake for the ZR-1? (SLP Excluded)

Would there be an interest in one....thinking making a reversed cold air intake that looks stock...would require radiator shroud mod.

Any thoughts?

xlr8nflorida

12-05-2009, 12:58 PM

LGAFF

12-05-2009, 01:10 PM

No, not buying one...having one made and then selling them for a reasonablle price.

xlr8nflorida

12-05-2009, 01:14 PM

This has been discussed here and on CF numerous times, any HP advantages would be negligible unless probably over 100 MPH. Most say there is no gain at all.

Also, it can cause problems if your car is driven in the rain.

Locobob

12-05-2009, 03:19 PM

flyin ryan

12-05-2009, 07:46 PM

It's not worth it, save the $500 (with paint costs) and buy yourself some booze.LOL!

USAFPILOT

12-05-2009, 09:01 PM

is there anything wrong with the SLP CAI? I was thinking about that one...my previous LT4 had that CAI and it seemed fine.

LGAFF

12-05-2009, 09:27 PM

Just an opinion......the three filter thing on the SLP is a no go to me.

HAWAIIZR-1

12-05-2009, 11:03 PM

I would be interested in other options myself. I have an Automotive Performance International, Inc. CAI and it came with my Z so I have nothing to compare it with. I am happy with it, but have no idea if it is good or not and have never seen it part of any dyno testing, etc. I had an interest in the quite expensive Coplon Air Blaster (I think that is what it was called) but was told he decided not to make any more because it did not give the desired output; I just thought it looked cool. At one time I thought about the claw from SLP or whatever it is called and wondered about the cold air theory for that design.

HAWAIIZR-1

12-05-2009, 11:05 PM

I think the idea has merit. I'd like to see something kinda like the Callaway honker - only with a scoop on the bottom to help feed it. The Vararam design looks even better offering a more direct flow path but creates packaging problems with a large filter.

Hey Robert,

Was it you who did some testing on several CAIs in the past? I vaguely remember something like that, but then again......my memory really sucks.

xlr8nflorida

12-05-2009, 11:51 PM

The claw sucks so unless you like the way it looks? I don't care for it - looks gimmicky.

Plus its 3 filters to clean and they are small filters which impedes.

Your best bet is a Open Lid Filter and call it a day. :mrgreen:

flyin ryan

12-06-2009, 12:04 AM

the three filter thing on the SLP is a no go to me.I agree...it's gay :rolleyes:

-=Jeff=-

12-06-2009, 12:59 AM

Dominic and I both have one that is a bottom feeder and looks stock.. I know there is a picture somewhere

-=Jeff=-

12-06-2009, 01:07 AM

some images are gone but here is the thread
http://www.zr1netregistry.com/forum/showthread.php?t=6188&highlight=intake

jonszr1

12-06-2009, 01:08 AM

i have 2 z industries air cleaner that require you to modify the rad shroud .they also have slits in the bottem of the intake so water has a place ti go if you get caught in the rain . i have been caught in some serious down pours and no prob so far . i like the fact that i am getting cooler air than the stk set up .JMHO

Locobob

12-06-2009, 03:18 AM

Hey Robert,

Was it you who did some testing on several CAIs in the past? I vaguely remember something like that, but then again......my memory really sucks.

Yes but none were really CAI, I dyno tested stock, cut lid with K&N and the "Claw". They were all very close in performance with the claw yielding a small advantage - mainly in mid range torque. A real CAI system would need to be road tested rather than dyno tested - I think a series of timed rolling start runs would be the best way to do it.

billybaloneey

12-06-2009, 10:23 AM

This was a while back...but I called Marc H. on an unrelated subject, and before the conversation ended I asked him about the benefits/improvements of changing over to the SLP (3 fingered claw). I was watching one on eBay at the time. He said there was no noticeable improvement to engine. Being visually appealing seems to be the sole reason for investing in one.

Locobob

12-06-2009, 02:38 PM

Here is my original post from the CF, again this is not really a CAI test as all the intake systems are drawing static air from the stock location. Interesting to note is the small torque hump between 4000 and 5400rpm - this is the "Claw". The "Claw" also came out on top in average horsepower - 5hp above the others.

Today myself and forum member/dyno owner TJ Wong set out to find the truth regarding C4 air intakes. We dyno tested 3 different air intakes on my Lingenfelter 368cid LT5. Tested today were: stock with paper element, stock with K&N element and a cut lid, and finally SLP's "claw" tri-cone filter design. All dyno pulls were made with starting coolant temps at 195 degrees F. Here are the results.

Stock with paper, two identical pulls: 477rwhp. Avg. peak HP 477

Stock with K&N and cut lid, three pulls: 471, 475, 480rwhp. Avg. peak HP 475.3

SLP tri-cone "claw", three pulls: 477, 478, 481rwhp. Avg. peak HP 478.7

It would appear that the naysayers are mostly correct about C4 air intakes, not much to be gained here. Both Tom and I were rather suprised with the results. We had expected to see some small but visible gains with the cut-lid and SLP, instead we got a bunch of tests with peak numbers being basically the same or well within normal dyno pull to pull variation. The SLP unit does seem to have a small advantage over the others but suprisingly it's in mid range power not peak (see dyno graph average power #'s).

http://www.pnwzr1.net/Robert/368dynoairintakecomp.jpg __________________

xlr8nflorida

12-06-2009, 10:11 PM

And that was on a 368, not a stock engine etc.

I was told by my tuner I picked up like 12 HP with the cut lid but I'm not so sure I buy it.

HAWAIIZR-1

12-07-2009, 12:37 AM

Robert,

Thanks for posting your test results again.

All,

I'll try to take some time to post pics of the Automotive Performance International, Inc. for those that have not seen that one. I don't know what happened to the pics I had on photobucket as it shows no pics now. No problem, I'll take some new ones for the group and post here.

HAWAIIZR-1

12-08-2009, 02:51 AM

-=Jeff=-

12-08-2009, 09:37 AM

I can get some pictures of it in the car too if needed..

Hey Craig, how much was that Amsoil filter?

GOLDCYLON

12-08-2009, 10:57 AM

Just an opinion......the three filter thing on the SLP is a no go to me.

I have to agree with you on the "Claw" Lee, Its not so much the claw piece its the cheapo POS plastic they used for the top of the air cleaner. I have many of these cracked at the corners and yellowing after time and looking like crap. Maybe the claw if it was attached to a smooth metal air box like the underside of the Coplan air blaster.

GOLDCYLON

12-08-2009, 11:01 AM

Here is my original post from the CF

This is surprising Bob. I wonder if an airflow vortex is happening on the open air element side ? Vs. the stock paper setup?

Locobob

12-08-2009, 11:57 AM

I have to agree with you on the "Claw" Lee, Its not so much the claw piece its the cheapo POS plastic they used for the top of the air cleaner. I have many of these cracked at the corners and yellowing after time and looking like crap. Maybe the claw if it was attached to a smooth metal air box like the underside of the Coplan air blaster.

I think maybe you are confusing the Claw with the Vortex Ram-air. The Claw is all metal and is a one piece set-up not counting the filters, the Vortex is made from cheap plastic. The Vortex is a real CAI, requiring cutting of the radiator shroud. I always thought the Vortex concept was pretty decent but they totally blew it on execution.

Locobob

12-08-2009, 12:04 PM

http://i78.photobucket.com/albums/j86/hawaiizr1/DSC01678.jpg

http://i78.photobucket.com/albums/j86/hawaiizr1/DSC01675.jpg

As promised, here are pictures of the Automotive Performance International, Inc. with AMSOIL filter and open element.

I put one of those on my 94 LT-1 many years ago. Mine had a scoop on the bottom rather than the cut lid you have here. The idea of it made sense but I honestly didn't notice any difference in performance. Then again I never did any real testing on it - purely seat of the pants.

jonszr1

12-08-2009, 12:58 PM

the 2 i have are like what bob had on his 83 and what found out was that it was worth a tenth and aprox 1.5mph in the 1/4 vs the stk setup with a cut lid. most of the gain was in the top end when speed got above 80 mph . as 1/8th mile improved just 1/2 mile an hr .my bottem lid has slots in it to help get rid of water in a rainy deal . if glaff would like one for a little while to use to see what it would cost to reproduce i would be happy to led him one

HAWAIIZR-1

12-09-2009, 01:28 AM

I can get some pictures of it in the car too if needed..

Hey Craig, how much was that Amsoil filter?

Jeff,

Sorry, I can't remember since I bought it about 6 years ago.

HAWAIIZR-1

12-09-2009, 01:31 AM

I put one of those on my 94 LT-1 many years ago. Mine had a scoop on the bottom rather than the cut lid you have here. The idea of it made sense but I honestly didn't notice any difference in performance. Then again I never did any real testing on it - purely seat of the pants.

Thanks Robert, I wish I had something to compare it with. The one you had probably worked better if it had a scoop to help catch the air. We really don't have any good, high quality choices do we...........

-=Jeff=-

12-09-2009, 09:04 AM

Jeff,

Sorry, I can't remember since I bought it about 6 years ago.
:cheers: no worries

93RubyZ

12-11-2009, 02:44 AM

Here is the SLP Claw:

http://www.slponline.com/img/part_img/21028-1.jpg

ZRXMAX

12-11-2009, 03:32 AM

My A/O Engineering intake has been performing just fine for me since installing it about 5 years ago. Since I have never tested it I have no idea if it produces any performance increase. The system hasn't given me any problems in 30,000+ miles. I like the fact that the front diffuser looks factory and fits perfectly.

As far as rain goes it has never been a problem. I have driven through a downpour at highway speeds and never noticed anything to be different as far as how the car ran.

Is anybody running an A/O intake system ? Seems to me Bob Hall has the A/O system on his car.