I am currently running the Enderle tunnel ram injected unit on top of my 540 BBC. I am planning to convert over to a blown alky set up so I am looking around for those that have "been there and done that" for any words of wisdom.
Thus far, this is what I know I have to do. Drop my CR down from 14.5 to a range around 9 to 11:1. Upgrade the 80A Enderle pump to a 100 series. Replace the camshaft to better suit forced induction. Upgrade the barrel valve to the blown alky application (or just change the spool?). I plan on using my current bird catcher hat. I also plan on removing the nozzle housing fittings from the ram and installing them in the injector hat and order the recommended nozzles from Enderle (along with the usual set of high speed pills). Order the distribution block and lines from Enderle to plumb the hat. I have a 3 way shut off valve and a high speed dump valve on the discharge of the pump, poppet type, which I am unsure if I will need that in blown service.
Upgrades to the bottom end will include getting all clearances to the recommended dimensions. I plan on keeping my steel H-beam rods w/ L19 cap screws, but if converting to aluminum rods is recommended I will follow that avenue. Additional ring end gap clearance, maybe o-ring the deck or heads.
I am running the CFE BMF cylinder head with 385cc intake port volume, 114cc chamber, stainless valves, standard seat alloy.
And now for the million dollar question...what manufacturer and type of blower? My goal is not to make 2500 HP. I want a nice reliable, lower maintenance engine package in the 1500 HP range that will run several seasons without stressing itself, kind of like the monster truck engines. If those blower motors and run over cars and RV's, jump 30 feet in the air, and do constant donuts for at least 90 seconds, then imagine how long one of those engines will last in a drag car?
I have been eyeballing TBS's billet housing racing blower (8-71 or 10-71). Of course, there is BDS, Weiand, Mooneyham, Littelfield, and several other reliable makers. I am not intersted in PSI, exotic Koblex, etc... that costs $5800 just for the huffer alone.
Lastly, is it recommended that the fuel pump be cam driven in blower applications? I am currently using the Gilmore belt on my 80A pump with the tunnel ram injector.
Thanks and best Regards,