Well I was pondering doing the LS1 Lid conversion but it seems that I would have to cut the frame with the stock hood so that is out of the question. However, I was thinking of running a cold air induction pipe and conical or oval filter in front of the radiator. I would make a custom radiator support to let the radiator sit back further and use 4" pipe. LT1's who do the lid conversion seem to get lower IAT's more mph with the lid mod so thought this would be a good idea. More direct route to the tb as well and less chance for the filter to get wet as opposed to a cai. Would probably have to cut the hood a little but that I don't mind doing.

Good Idea/Bad Idea. Thoughts just kick it around and let me know what ya'll think.

 

don't you have to cut a hole in the hood large enough for it to fit?
There were some pictures of it floating around somewhere, but they've disappeared. If you have to cut a hole in the hood to where the top side of the lid is exposed to the outside... please don't.

 

To begin with: I've seen no conclusive evidence of significant gains with any of the many types of CAIs, Scam Airs, systems, etc. None of the sytems are "ram" and non of them are "cold".

With a NA engine the air is inducted...the objective therefore is to make the air more readily available and as cool as possible.

The ideal system would be the straightest and coolest route to the intake.

The engineers did not do a very good job in providing such a system....probably because the gains would not be that significant and the cost v. the gains to design such a system would not wash. JMHO

 

Yeah, that is why I am not doing it. I covered that in the above post. You still have to cut the hood AND the frame . I will not cut the frame of my car for this mod to work and dont have an slp or ws6 hood lying around.
Sure you can cut a hole in your hood for it to work but I'm not. The pictures had the frame cut AFAIK.

This ISN'T the ls1 lid mod. It is basically a variation of it. straight 4" pipe to before the radiator with a 120* turn for the filter to attach. Then a custom radiator support. Might grind down radiator a little on top and probably have to cut out a hood brace or two in front for it to work-maybe not. Just trying to get ideas. Less bends and a more direct route seems like it should be a lot better than a heat soaked long cai. This should do better at higher rpms than a cai imho.

 

FYI I would not be using the lid or panel filter if it isn't obvious from the above posts.

 

Have fun doing all that work to gain 0hp.

 

I'm sure the gains will be non-existent over a conventional cold air intake or lid system. But if you want to do something different, then go for it and post the results.

 

I looked at it every way possible and don't see how to make it work. and there is probly no gain anyway

 

This is what I had back in 99....it worked fine and the car was very fast for what was in it.....116m.p.h traps with stock head, hot cam, hooker headers, and 4.10 6spd. stock tune

 

using the above pic visualize the a pipe coming from the tb to the center ridges on the radiator support. Center of the support would be ground down as well as some of the top of the radiator. Pipe wouls go into the support at about a 120* angle into a hole in the middle of the support. I would seal it off so that effectively unbolting the support would take the pipe and filter out along with it. The above setup seems like it would just suck hot enginie air.

And as far as no performance gain that can be disputed either way since I have not seen any dyno evidence. I have seen higher traps for ls1 conversion. Most report lower iat's

 

you won't get a 4" pipe to fit under a stock hood. I have the motor etc k-member out and got in there with the hood closed.....no if you want to cut up and rig something up then maybe, just remember what is in the front of the car that top rad sup. is about all the structure you have side to side and its not going to be worth cutting stuff up for a rigged up system....

Here were my thoughts before desciding to run an open tb
get some type of material that will hold its form..similar to a clay...se what you have to work with under there, come up with a design on paper and go to a plastic company, get with an engineer and have a sit down with everything on the table...some thing could be made similar to a C5 intake.....Its not worth it, that was my idea but you can have it for free b/c I know for a fact if you take it all off then it will be faster....I don't have a hot air problem b/c/ I don't ride on the streets. Theres an idea so see what you can take from it and do something that looks good, please don't go to the depot and buy pvc and hack up a car

 

I would be running a maf with this *potential* setup. I would also be running 3" piping since I believe the maf inner diameter is 3".

What I am really trying to get at here is putting a cai in a different location than the front driver side fender. The proposed setup could theoretically reduce filter clog, water getting on the filter (car is lowered), reduce the length of pipe and turns to the tb (basically a straight path), and reduce iat's, I could also run a bigger filter in this location.

 

[QUOTE=mdacton;4352437]remember what is in the front of the car that top rad sup. is about all the structure you have side to side and its not going to be worth cutting stuff up for a rigged up system....

I thought I made it quite clear in the first post that this was the reason I was NOT doing the Ls1 lid conversion (cutting the frame which I think is what you are referring to ). The radiator support is the black piece of plastic that does not have any affect on structure.

 

I mean the acctual pc. that the plastic bolts to.
maybe you need to take that off and get some measuments etc. If you want more info pm me....It will take alot of fab work to this.....and basicly no power increase.

If you want any info like measuments or clearancs with stock hood let me know I can get it for you...I have 2 cars with the motors out rite now....I may be able to get you a pic from the bottom side with the hood shut so you can see what I mean