turbo carburetors

airmaster1 · Post by **airmaster1** » Mon Sep 24, 2007 11:44 pm

hey everyone, i havent been on in awhile, added a 1 to my username...anyways i was wondering if anyone has any experience with turbocharged carbureting....im installing a turbo on my ranger and have questions on what i need to do about the carb

87ranger · Post by **87ranger** » Tue Sep 25, 2007 6:16 am

use solid floats, rear jet extensions, and a 1-1 boost referenced regualtor

airmaster1 · Post by **airmaster1** » Wed Sep 26, 2007 11:19 am

hey thanks, ive been reading up on it alot lately...where can i find a boost referenced regulator...also, do you think a red holly fuel pump is enough?

broncobowsher · Post by **broncobowsher** » Wed Sep 26, 2007 6:29 pm

I don't like Holley fuel pumps. When ever you are looking at a part and the recomended item to go with it is the rebuild kit for the very same part, Just doesn't cut it. I passed on 2 of them once. They were free. Both needed rebuild kits.

I can't recomend any fuel pumps until we know how much boost you plan to run. You need a fuel pump that can supply enough fuel at about 7PSI above your highest planned boost setting. So if you are planning 15 PSI boost, you need a fuel pump capable of suppling enough fuel at 22 PSI.

If the fuel pump can't supply fuel above the boost pressure, fuel can't travel into the carb and you just leaned out the engine at the worst possible time.

87ranger · Post by **87ranger** » Thu Sep 27, 2007 6:07 am

get an msd pump thru jegs they will support approx 500 hp at 40 psi more at lower pressures, all of the areo motive regulators are boost referenced i think, the only difference between a referenced and a non referenced is that there is a nipple on the spring side (top) of the regulator that allows boost pressure to increase fuel pressure at a 1-1 ratio to allow proper operation of the bowls and jets

MalcolmV8 · Post by **MalcolmV8** » Thu Sep 27, 2007 6:35 am

How do you check your air fuel ratio? Do you put a wide band in the exhaust and make sure it's not running lean under boost?

87ranger · Post by **87ranger** » Thu Sep 27, 2007 10:43 am

thats the smartest way of doing it some people just jet really fat and read plugs forever while jetting down, but they never know what the air fuel ratio really is, they're just guessing, get a wide band and a guage, its cheaper than a new set pistons and head gaskets.