adding ADA haed will give me _?__ compression

[JDiz]

Right now i got a 701 with a B pipe and MSD and getting right around 185. I am wanting to add a ADA girdled head w/ 35 domes but am curius just how much increase i would get? What if i popped on a couple new reeds too? Damn economy makes me watch the cash flow more. Thanks for any imput. JD

 

[WILKEY]

dang 185 with a stock head:Banane09::Banane09:

i think im gettin like 190 with a ada and 35 domes

 

[superjetnj]

Is your comp gauge accurate? I've got a stock bore 701, b-pipe limited, sport ported, ada w/35 domes, and 185 comp, (msd doesn't matter on comp). Mine #'s are with a snap-on gauge, that has been re-certed with snap-on last year.

 

[DC SUPERJET]

i was always told that 35's will give you right about 185 lbs...:shrug:

 

[JDiz]

Is your comp gauge accurate? I've got a stock bore 701, b-pipe limited, sport ported, ada w/35 domes, and 185 comp, (msd doesn't matter on comp). Mine #'s are with a snap-on gauge, that has been re-certed with snap-on last year.

Actually the gauge was right out of the box so i doubt it would be to far off. My guy over at legdrag said that the MSD definetly will show in the compression. Dont know??? Did you notice a gain when you changed heads?

 

[WILKEY]

you will deff. notice a difference

 

[JDiz]

thanks. off topic. you ever come north to ride. You know any good deep spots to catch some curl around Ocean City MD?

 

[flipside]

the shoal right out of the inlet

 

[JDiz]

yeah we've hit that up a few times but it seems like its either dead or to rough to set and nail solid air. anything further north or south? even into de. or south?

 

[WILKEY]

i like the shoal its been good to us. just gotta hit it at the right time

 

[restosud]

wait!
who said that msd would bump your compression?
did i get this right?

 

[Cannibal]

There is no way an MSD will change compression. Compression is a measurement of the pressure in the cylinder once everything is squished. Now the MSD can change cylinder pressures while running, but not compression.

Stock head is supposed to be 155 is it not?

 

[JDiz]

The head is on and hits hard. def can tell the difference with a nice grumble. Question Though. When im running 30ish skipping through the chop it seems or sounds to rev super high. i wouldnt think that would be becuase of the head. is it just a different tone i am now hearing. fyi i do have a MSD on it.