Statistics: Posted by RFSPHPbb — Fri Apr 30, 2021 2:00 am
]]>
Those protrusions were fixed with some careful Dremel and file work.
Statistics: Posted by Right hand drive — Thu Apr 29, 2021 9:06 pm
]]>
The other issue w/ the boosters that aren't machined properly at the entrance (not tapered and/or not on center) is those are typically the same ones that can't be aligned properly with the venturi: simply junk. Those are what came with my Race Demon RS and were worthless. At that time it was already difficult to find NOS (New Old Stock) boosters from the earlier production runs that were useable. However, I probably got lucky and managed to locate a decent set of .160" downlegs which I installed in that Race Demon RS before I sold it later on.
I dealt with the protruding booster end & retaining nut issue by surfacing them "just enough" to only stand proud maybe .025" - .030", and then using a thicker & softer (more conformable) metering block gasket that would seal up properly. Yes, I also found out on the dyno what happens when your gasket doesn't have enough crush to seal around the entries to the boosters sufficiently when they stick out like that. The ones that do crush enough are the original red Demon and the blue Holley; you need to check if those gaskets' passages from the angle channel to the booster entrance need to be opened up to not block the entrance w/o being too big and leaving the retaining nut surface exposed. If you can install one, remove it, and see the full imprint of the retaining nut and booster entry in the gasket, you should be good. The newer MP-15 and similar materials don't have enough "give" to work with this situation.
Statistics: Posted by BradH — Thu Apr 29, 2021 5:20 pm
]]>
Statistics: Posted by Right hand drive — Thu Apr 29, 2021 8:21 am
]]>
]]>
]]>
Never ran the .184" boosters in my Gold Claw. I've run it in only 2 cofigs, the 1.425 v w/ .160" downlegs and the 1.562 v w/ BGs screw-in annular boosters.
With the limited amount of time I spent trying to sort out the 1.562 AN combo, it never ran any better on the track and definitely didn't run as clean on the street. I cut loose my 1.562 & 1.590 sleeves, the annular boosters & the .184" downlegs, expecting I'd keep it simple and stick w/ the 1.425 & 1.500 sleeves and the .160" downlegs. Haven't ever tried the 1.500 sleeves, either.
Here's the BG today, with nothing but a fuel bowl change to hard-coated BLP/Braswell "Bat" bowls to shed a little weight and add some fuel slosh baffles not found in the BG or early Holley zinc fuel bowls.
BG Gold Claw_BLP coated bowls.jpeg
Also, I spent some time w/ the .160" downlegs removing the casting lines on both the exterior of the boosters and inside right above their machined step... cuz I figured it couldn't be doing anything "good" for how they function (especially on the inside where the lines would disrupt airflow just above where the fuel exits the booster).
Statistics: Posted by BradH — Wed Apr 28, 2021 3:04 pm
]]>
]]>
]]>
]]>
]]>
]]>
]]>
]]>
]]>