No offense taken at all, everyone is welcome to their views. Without the spacers the lower manifold ports line up nicely but the transitions could still use some epoxy to help shape them. The ports on the spacers are larger than the heads/lower manifold and the transitions are horrible. These spacers are made of some kind of HDPE material so they can’t be welded. I plan to use locating dowels on the spacers for the epoxy to have something to grip to more so than just a roughed up surface. I also plan to topcoat/skim coat the epoxy with a fuel proof coating. Lots of people use this A-788 Splash Zone epoxy to shape intake ports with great results. I’m hoping that I’m one of those people and if not no biggie. I do appreciate the feedback and insights though or I obviously wouldn’t keep posting stuff.

The head opening is larger than the blower tub opening. Plus this way allows me the ability to make whatever transition I want.

Here’s some tinkering I’ve been up to lately

What is that?

It’s the supercharger inlet in front of the rotors


DIY Paw Patrol flow bench

You get rubble to help?

Got a two year old so I’m more up to speed than I care to admit on paw patrol.

That Paw Patrol Might Pups 1 hr Movie event the other day was legit

My redneck flow bench has shown me a few things....I’m able to increase the velocity pressure and total pressure using a convergent pressure recovery plate. The flow speeds go from 220mph to 270-300 at 2000cfm though the 4.5” intake tube down to the 4” TB. The increase in mass flow from the system is considerable. I have some more testing to do with vortex generators and turbulator strips/tape. I have some ideas for using them within the lower manifold, intake tube, S/C Inlet, etc. It’s basically a tunnel ram intake I’ve developed with the use of the spacers and epoxy for the floor. My intent is to gain and maintain airspeed post intercooler. (The manufacturer design makes for extra turbulence/heat to be added along with massively decreased airspeed.) I hope for better cylinder fill and fuel shear with the increased speed. I’ve also been tinkering around with using the AN hose inner support springs as “turbulators” within the intercooler hoses. The hoses are insulated from hot engine bay heat with Heatshield Thermal Sleeving so they don’t gain radiate heat. The “turbulators” increase the heat transfer within the system. I also redesigned the inlet/outlets for the reservoir so as not to introduce any air bubbles into the system. (Air = less thermal efficiency) . I’m also on another boron nitride kick....powder .5micron along with brushable and aerosol. This stuff ROCKS! Thermal conductivity, Low friction, low rates of wear, non wettable...All sorts of good stuff coming....

5” intake tube is more optimal then 4.5

Summarized: you’re making a better intake manifold. Yes, a tub sucks dick as an intake manifold, boosted or not.