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View Full Version : merc carb wh-39 / jet sizes ?



mr twister
03-02-2010, 08:20 AM
guys,
i need high and low speed jet sizes for this carb. wh-39. its on about a 81 225 bolted to a 2 liter block. my chart book stopped at a#29 carb. what would you run in it?
steve
westerman's fiberglass
cleburne texas

tlwjkw
03-02-2010, 09:54 AM
Steve, looks like 52's maybe 56's and 80's. Don't hold me to it though. These notes are almost as old as me.................

mach351
03-02-2010, 09:57 AM
225 front on a 2L block? Hmmm - well it's definately not going to need as much as the 2.4 would, even though it didn't have fingerports. Maybe start there (#72) and see where it is - check your plugs. As for an idle jet, probably some 56's ?!?

Every motor is gunna be a little different that's for sure, depends on port work, if any. That 7 pedal front might not be the ticket for that 2.0L - might hurt what little low end grunt a 122cubic inch motor might have. IMO

T-REX
03-02-2010, 10:16 AM
14 peddle front iz gunna KILL dat 2liter...well, up to about 7500 anyway.....JMO:thumbsup:

tlwjkw
03-02-2010, 10:20 AM
up to about 7500 anyway.....JMO:thumbsup:

What about "OFF IDLE".....................:reddevil: