There's multiple benefits to an insulated spacer. Plenum increase, straightening of the airflow before the runners and the cooler carb. I was blown away when Engine Masters did a test of fuel temperature. I don't know how much cooler the gas would be while running with a spacer though, but at least somewhat cooler I would presume.
I personally really like this. I'm the loudest advocate of factory intake filter housings on here, for better or worse. Not just the cool air, worth 1% power increase per a mere 5*F , but also for the hot air system. The hot air part of the system is even more critical/beneficial in my climate for preventing carb icing, which can begin as high as 68*F. Winter ambient low temp 35-55* with near 100% humidity, without the hot air snorkel, I'm stalling, engine flooded at every stop, the first 10 minutes cold.A little update. I found a guy on Craigslist with a 4 barrel 289 air cleaner near me.
I’m going to make a fibreglass insert to fit the webber carb to the air cleaner housing, tne same size as the 4 barrel outer diameter and I’ll set it up to a height that fits under the hood. I'll continue to use the weber oiled filter and have it inside the ford air cleaner and plumb cold air to it through the radiator support.
I’ll have to get a 200 Sprint decal for it, not that anyone would be fooled into believing it was a 289
View attachment 27848View attachment 27849
Its actuallyy ducted to behind the grill.on each side
They may not be attached at all- engine shift and vibrations bolted directly to the body, not good. I see the rubber connector at the fender, that's probably not enough give for the system. On hard acceleration the filter housing is moving 1/2" or more right, unless they've solid m. mounts. I wouldn't want all that pressure on the single 1/4" stud in the carb, looks like they don't either.Interesting!! The snorkels look like they are sealed inside to something, not the outer filter housing
Good point. Weighing the odds- a small % of underhood air better than 100%. Ripping the carb stud from the center of the carb would present major issues. When in motion, the ducted air has higher pressure than underhood, and would displace any intrusion.I understand the movement of the engine. I would think absorbing the movement with flex in the ductwork would be better than sucking g in hot engine bay air, kinda defeats the goal
www.racetep.com
www.racetep.com
Yes, the 5 1/8" filter neck fits all 4V filters, and all Holley/Autolite 2V filter housings.
many options.
@awasson was reading the thread, while I'm deciding between 32/36 or 38/38 for my car and actually stumbled upon this kit for weber carbs. Wanted to share, in case anyone needs it
Top End Performance - Weber Carbs and Parts. Genuine Made in Spain Webers and Weber Redline Kits. All Tuning parts and accessories.
Weber Carbs and Parts. Genuine Made in Spain Webers and Weber Redline Kits. All Tuning parts and accessories. Weber carb rebuilding services and Tuning and Re-Jetting services.
Also, at the bottom of this page, there is an adaptor for weber to use with 5 1/8 Holley filters. I assume you can use a different brand as well, but thought that it might give more options for air filters
Top End Performance - Air Filter Assemblies for All Weber Carbs - Weber Carb Air Filter Options. - Weber Carbs - Weber Carbs and TWM / Borla EFi Induction - Performance Brands
Top End Performance has been your source for the best prices on brand name, top quality car parts since 1994. Our commitment to providing the best parts at the best prices is topped only by our dedication to providing the very best service to our clients. We are here to help - that's the Top End...
Nice....looks like part cold air induction / part flux capacitor
