So I put the ADA on. With my OEM head I was running at 150 psi according to my instrument. With the ADA I get the same!? I did torque it according to ADA's specs, with a calibrated wrench. Even compression, runs well on the hose, no sputter. Plugs looks OK. What gives?
ADA head - 37 cc domes - 150 psi - WTF?
- Thread starter Sospikey
- Start date
Frosty
New York Crew
- Location
- Western New York
what cyl bore are you running? ported?
Frosty
New York Crew
- Location
- Western New York
on a yamaha i presume?
i had to run 35cc domes to get 185psi out of my ADA head... 701cc std bore
i had to run 35cc domes to get 185psi out of my ADA head... 701cc std bore
Sorry, yes! The 701 RN in my sig...
I run the dry pipe so I was reluctant to go to 35cc. I'll try it out at the lake tomorrow, I think.
Frosty
New York Crew
- Location
- Western New York
yeah, 35cc domes is what you'll want. i did the same thing a few years back... went with 37cc domes and then swapped them out for 35's.
uga86
X
- Location
- lake sinclair, GA
I've got 170 compression with the 37cc domes on an otherwise stock 701 in a 2004 superjet. Are you sure the domes you're using are 37s?
- Location
- Grand Rapids, MI
You need 35cc.
Well, that's how they're marked anyway. Bought brand spanking new from JSS.
surferdude345
X-H
- Location
- Blacksburg for school
I got a set of 35cc that will bring you to 185 - 50 shipped perfect shape ran them for one season
Might take you up on that offer. Got pics?
thegoldenboy
RN Surgery... soon
- Location
- Toronto
One would think 37cc domes would still run higher compression than a stock head. Seems funny, I would have though you'd see at least 160-165 psi with 37cc's.
Thats probably right, you just need a good guage.