Re: 4GC Air Cleaner base
 

Thats it. Although I need a tenth! LOL

Re: 4GC Air Cleaner base
 

If we designed a CFD base specifically for the 4GC, would you be able to use it?

Re: 4GC Air Cleaner base
 

2013 rule book, section 11A, page 2

Air-cleaner base may be cut or trimmed, but welding, bolting, riveting, epoxying, or any other form of fabrication prohibited.

Re: 4GC Air Cleaner base
 

If that's the case then alot of air cleaners I've seen need to go in the trash.

Re: 4GC Air Cleaner base
 

If it can be used, I'll utilize the CFD programs and design a 4GC base prototype that can be dyno/track tested next week.

Re: 4GC Air Cleaner base
 

My guess would be that if it did not come on that particular combo or carb than your not suppose to use it.

Re: 4GC Air Cleaner base
 

I have several NEW bases and adaptors to make this type of set up almost the exact thing in the picture---$40 shipped UPS to your door-- let me know by PM please if anyone has interest in them--- you will have to fabricate the attaching rods to hold the base in place but that should'nt be a problem---we made one up in less than an hour

Re: 4GC Air Cleaner base
 

The written rule does not specifically exclude an adapter that is simply sandwiched between the air horn and the air cleaner base. For example, Caddy Sevilles, etc. used a riser type adapter, although it did not change the mounting diameter. Now you just need to get NHRA to follow your logic. . .

Re: 4GC Air Cleaner base
 

anyone have one of these for a rochester?? I would like to have one.

Re: 4GC Air Cleaner base
 

Late 70's/early 80's small block Chevy pick-ups used an adapter/spacer ring right below the air cleaner base. It was about 3 inches high with a tube for a crankcase vent hose. That would lift things up, but then hood clearance might be an issue.

Lew