Blower question
 

Is this a good setup for a hp 500. Sorry if this is a dumb question but i am just not to sure when it comes to blowers.

250 B&M BLOWER COMPLETE SET UP
BLOWER, INTAKE, NEW 2-4 CARB PLATE NEW 2-4 LINKAGE 2 GAFFRIG SS FLAME ARRESTORS 2 SS FUEL LINES 2 750 HOLLEY CARBS

if this wont work can someone please tell me what will work so i can keep an eye on ebay and opther sites. or if it would be better to just do heads and cam. Thanks Jeramy

Whipple EFI all the way

You'll make 600+ all day long and 5 lbs of B@@st if thats what your lookin for :ernaehrung004: good luck

so is this a good candidate for my motor. or is there a better choice? Or would it be more realistic to do heads and came?

I run 250's on my engines and really like them. I would think you would be happy with them on your 500 HP's. My only suggestion is make sure you get your carbs dialed in. If your carbs are set up right you it will idle and run great for you.

Good luck.

I would suggest BLOWER SHOP blowers. The end pieces are all billet...not cast like B&M or Holley...a far superior unit for about the same money. Call Rick Bourns at CP Performance
( www.cpperformance.com ) and he can fix you up.

Since it sounds like your loking at a used set up, try the classifieds. There were two merc 420 set ups ( complete) for sale. Those are suted to the 500 even better than the 250's, due to it's ability to make good boost at a slower rotor speed. Probably not a big difference in price also.




Darrell.

Made 645HP with 502 / 8.75/1 comp, dart 2 al heads, lunati cam, 7# boost, intercooler, v6 thunderbolt module for a total of 27 degrese for total timing. Ran 91-93 oct in winter months and AV gas in summer. Over 175 Hrs on motor till I sold boat. Had pyrometers on each side and watched egt's carefully.

Blower is pretty small, would be a lot better off with larger sc or more efficient.

Dustin

Buy adding the blower do i have to have the hood scoop? Cause i am not wanting that look of a hood scoop coming out my backseat. Also is the 420 on the classifieds a good set for me.

I am running a 454, 1/4 stroke, 482, KB blower pistons, comp blower cam, mild ported oval port 781 heads, weiand 177, 4.5 lbs of boost, 850 holley, 525hp @ 5500..Rob

What about this setup better choice?

B&M 420 polished Mega-Blower, Set up for Big Block Chevy. Comes complete with all pulleys, intake, brackets, Bary Grant Carbs, Linkage, Regulators, partial fuel lines (Steel Braid), & functional Mechanical Scoop. Immaculate condition!, Aleays stored inside,

needs a cooler whch means longer studs and belt to go with it. The studs are available from Teague for 75 bucks. Cooler around 1500.

420 is certainly better than the 250, on a 500hp. An intercooler is a good idea either way. Motor has cast iron heads and 8.75:1 compression. Non intercooled, 420, keep boost to 4-5psi, should make 625-650hp. Add intercooler, you can go to 6-7psi and make 675-700.

Thanks,
Dustin