I have a single cone shaped air filter going in to the TB. However, you can watch the entire air filter sucks itself inward when going to WOT. Makes me think I need more air flow.

What air filter to TB system did you use on your ls1 setup? Any ways to route them in front of the radiator?

Thanks

info: LS1 from 01 SS Camaro, custom grind cam similar to C5 Z06 but more, everything else on the engine is stock.

 

I've got a cone shaped too. But the inside is an inverted cone giving quite a bit more area. I think I got it at autozone.
You might try a quick drive without the filter and see if there's much difference.

 

Just for kicks hook up a vacuum gauge and see what the restriction/pressure drop at WOT actually is. It will also give you an idea if you got your money's worth with any replacement filter.

 

The stock setup on my '02 Formy consisited of a 78mm MAF and a huge surface area square air filter. So I would see what kind of surface area your cone air filter consists of and compare it to the stock setup from the F-body.
I now run a FTP 98mm lid with a 85mm MAF.

I can post pics if needed. My air filter is still not a restriction...and I'm WAY over stock on the HP level.

 

This may sound dumb, but is the filter clean? A dirty filter will be more restrictive.


Scott

 

You can use an intake system from a C5 but you will have to cut a notch into the upper radiator shroud.



Rick B.

 

Post pics... I think I have a good idea what you are talking about but still curious

Its new/used IMO. Not dirty at all but looks like they used it before and sun damaged.

Really... hrmm I like that idea. Have pics or a link to find more info about it?

 

Look at post # 18 of my ride in the link below. I got the idea from the land down under (Australia). Seems like what they call "over the radiator" (OTR) or "over the top" (OTT) are VERY popular with all makes & models in Australia. Its a standard K&N for a C6 LS7. I have a L88 hood which you will need.

http://forums.corvetteforum.com/whee...ing-vette.html

 

One of the nicest/cleanest install I have ever seen!

I don't have that hood and ecklers wants 600+ for it. However, you have given me some ideas to start playing with.

 

As I complete the rolling chassis on my '80 I've been giving much thought to how I'm gonna bring in more cooler air into the engine. When I bought this car the guy had a 360 air filter on top of the carb, but all it does is suck in hot air from inside the engine compartment.

I want to keep the original lines of the lower '80 style hood so an aftermarket high-rise with vents over the air filter are out. Maybe glassing in some shroud vents into the existing hood, or using the L82 air intake option. I'll watch this thread with some interest.

 

I'm Curious how You can see the Air Filter under Full Load? Must be on a Chassis Dyno?

 

I like this setup. Might try to incorporate something like this onto mine. I do have the L88 hood. Nice clean install.

 

No hood on the car and rotated the intake upward. You can see it suck in/shrink while sitting in the car or manually moving the TB.

I found a picture/thread of somone chopping the radiator support. http://forums.corvetteforum.com/c3-t...ir-intake.html

I like that idea but only wonder if cutting the support will weakin anything else?

 

VERY nice-simple and funcional-nice job.

 

I need to bring in more cool air to my ls1 also.I took the seal between the core support and radiator.and that seem to help a little.How does the over top of the radiator system draw air? Does it pull air from the front of core support or from the back of the L88 hood? Thanks Charlie

 

glarior, I wouldn't chop up the core support, that would look like a hack job, not to mention having to cut down the radiator as well and reducing the cooling affect of the radiator.

I am in the middle of an LS swap and will be running a temporary system with a 4'' 90 into a 9'' cone K&N filter just to get the LS up and running.



I plan to do one of two things, either fitting the F body filter that runs out to the top of the radiator with the flat filter there and an aluminum air box that runs out in front of the radiator support. I haven't seen any one use this system on a C3 yet, maybe because it doesn't work.
Option 2 for me was to build a similar system out of fiberglass or better yet carbon fiber that starts out as a 4'' round between the radiator and intake, then flattens (really wide) out over the support, clearing the hood when opened, then forums back into a 4'' round to except the 9'' cone filter down behind the front bumper. This design has the possibility of restricting the air flow to the radiator, and raising the running temperature, so I may not go this route.

If your just looking for more air for less restriction, you could run the dual 4'' (90 to each side) and run two 4'' cone filters off of that. That would eliminate the restriction problem.


I'm hoping that others will chime in and show us some nice custom setups.





Riggs.

 

It seals to the underside of the hood and pulls air from the front over the top of the radiator. When driving air now only has 2 places to go. Through tw radiator or up over the top creating being sucked into the engine. When I finish with a few pieces of weather stripping to ensure 99% seal it should create a high pressure area further increasing its effectiveness.

The PCM starts to retard timing at intake temps 85* and above essentially killing choking the engine with all that hot air being sucked in. There is suppose to be at least 4" of straight pipe before MAF for fine tuning but this is about as good as it gets with our limited space.

 

Kaos,where did you buy this air filter assembly? Do I need a L88 hood or can I use my stock hood? Your Vette is one of best on the Forum.Thanks, Charlie.

 

here is the link to the filter

http://www.summitracing.com/parts/KNN-RP-5135/

It wont fit under a stock hood but you might be able to use a different style filter and keep the stock hood.

I have since added the following for max air intake flow

http://www.powrmax.com/PowrMAF%20100.html

Nick Williams Throttle Body

Fast 102 Intake with Custom Paint Scheme

 

Here is one more additional pic. Brent did a great job measuring and molding the CAI. You can see where it was rubbing the underside of the hood a bit on the right corner. It is a tight fit but functional and looks good.