Do any of the C4 ramair cold air intakes actually provide RAM AIR?

Does anyone with a ramair intake have a datalog showing the MAP pressure reading, higher than Baro pressure at speed?


Mike

 

pics

http://forums.corvetteforum.com/c4-p...ke-sysetm.html

 

When I installed mine, I put 2 chalk marks under the hood right above the plastic airway the the filter connects to. I did this to see if the air pressure would hit the filter lifting the plastic airway, thus causing it to hit the chalk marks. After driving around, I popped the hood and found the chalk residue on the plastic.

So the air is being forced into the filter. How much? Don't know.

This was for the vortex ram air.

 

PoloGreen1's system is interesting to say the least.

Most of what is sold today is more of a cold air induction system - that places the opening in a favorable spot rather than opening to a closed in space in the engine compartment.

I don't know if A/O Engineering's Force Air Induction for the C4 is still available - that one was a true ram air. The A/O system placed a scoop in place of the front license plate and required *some* trimming of the bumper pieces between the front license plate location and the air filter assembly.

On my '95 I have the Performance Specialties system that flips the factory style air cleaner upside down and requires that a like sized rectangular hole be cut in the front radiator shroud - which then becomes the pickup point for air into the filter. To that I added a little scoop - but it is still more of an induction system because the scoop doesn't extend out like PoloGree1's setup.

Thomas

 

http://i315.photobucket.com/albums/l...atspics096.jpg

 

my home made air intake

40 dollars at autozone

 

I love your valve covers, if I had a red, white, blue car I would love to do that. why don't you do the intake too?

Does the cold air work well?

 

i did mine for free
http://www.smokinvette.com/corvettef...ad.php?t=34801

no data log but feels stronger and revs beter

 

aboatguy, alterchristopher's 2nd pic of the radiator shroud is what the my kit comes with. It slips down through there, and out the front, and the stock bolts with some little chrome looking spacers go on it to fasten it down like the stock box.

 

yeah i would think my intake works well i cut a lot out of the rad shroud...the filter is like 7 inches from the ground

 

"aboatguy, alterchristopher's 2nd pic of the radiator shroud is what the my kit comes with. It slips down through there, and out the front, and the stock bolts with some little chrome looking spacers go on it to fasten it down like the stock box."


wow your system is sweet

 

My guess is you're originally a Texan

 

yes sirrr
from corpus christi


now livin in fabulous las vegas haha

 

I did a write up some time ago but it seems to have been lost on the forum. I will try to explain the process in steps

The reason I did this modification was to get more cool air into my air to air intercooler for my supercharger. The air to air intercooler sits in front of my radiator and pre heats the air going to the radiator. The supercharger kit came with a diverter to split the air coming from the factory air dam so that half is diverted to the air to air intercooler and the other half to the radiator. I needed cool air into the air to air intercooler.

I looked at the forced air intake and for what they wanted for the kit, at the time it was $450.00, I thought I could do something similar for next to no cost.

Tools needed:

1. Dremmel (or similar tool) I recommend Sears brand (some of the kits come with attachments).
2. Flex shaft attachment (looks like a dental tool attachment)
3. Drill bit that fit’s the flex shaft attachment
4. Cutting wheels (thin that fit the above attachment about the size of a silver dollar, they are sold in packs)
5. Lead pencil or white correction pen
6. Shop light or flash light
7. Painters tape

The tools pay for themselves after just this one job considering the $450.00 cost previously mentioned.

I took the filler plate with the Corvette name and taped it off with masking tape. I wanted to keep the name and make a cross hair. This helps the plate from flexing. I used a dremmel (Sears brand) with the flex shaft and cutting wheel. Take your time cut a little less at first you can trim more after the initial cuts. You will be essentially cutting out four squares. As a side note I drew up several patterns and this simple one allowed the most air to pass through. You can also dress it up with ss or aluminum screening behind the plate when you are finished. I was looking for maximum air flow.

Next trace your license plate attached to your factory attachment points. Remove plate. IMPORTANT - I left the tabs for the license plate bolts in place if ever I should have to mount the plate. I then used the cutting wheel to cut out the plastic behind the plate leaving the mounting points in place. Try to take our in one piece in case you should want to put back in place in the future.

Now you will be facing a grid or egg crate plastic bumper enforcement. Using the dental attachment with the cutting drill bit and cutting wheel remove the section of material behind the license plate. The grid material is gray in color. I painted everything remaining black.

The next step use the light to look inside the opening. You should see a black steel bar(DO NOT CUT). You will be cutting the area underneath it. I placed a small thin board in front of the air to air intercooler as a safety, it was not needed. I then proceeded to use the flex shaft with the drill bit and made an outline of roughly a upside down triangle. Take your time and take a few brakes. I then just connected the holes with the bit until that piece was removed. If you wanted you could use some flex hose to the air filter cover from the opening giving you the forced air you were looking for.

Taking your time it should not take more than a few hours. You will also have the pride of telling someone you did the job your self. It is not a difficult process, I thought it was a fun Saturday project. It did help to cool things down for my supercharger.

I hope this helps. If you look at my pictures you will see a close up of the front plate filler and the parts removed from the bumper. Good luck! Let me know if I can be of further assistance.

I believe once you have selected the tubing you will use you could affix it to the air filter cover with some adhesive. Check out your local plumbing department and I am sure something will come to mind.
Sorry no MAP pressure reading at the present time. Good luck.

 

fishing report please.

 

I did'nt read the last part, so much for a good thing.

 

Have the a/o setup. No change in map pressure. It's more of a cold air system and better than most. I can't recall I think it was a zr1 thread built for bonneville but the speed required to actually have a 'ram' air effect is pretty high and even then it's not very much.

 

Do you know where to get that intake still? That is exactly what I want, but I can't find who made it or where it is for sale. I saw they were from Seattle, and I am from that area, yet I still cannot locate where they are.

To the op, I had the breathless performance ram air. It didn't do anything, and I belive it actually harmed the performance, there iss no way a little cone filter can breathe as much air as the stock paper filter. I sold it and went back to factor till I could find the reversed factory air cleaner.

 

Definitely interesting stuff here! I wonder how hard it would be to retrofit a C5 or C6 intake to a C4???

 

It's not if you have a 90+ car