Engine loses power under load. WTF??

[Rothu]

And of the rockers in the 173 head. and yes, they are mismatched but they measured and fitted. Replaced them when I had the dosh.
The push rods ARE ALL the same length for all the red and blue motors. 230mm
I bled the hydraulic lifters after the head was shaved 7 thou. These are what adjusts to the new conditions and sort themselves out.
If they were SOLID lifters THEN you have to critically adjust the rockers to suit with both valves at rest and tightened enough to just barely turn the push rods.

[Marishka]

well that clears up any doubts i had, thanx.
check out the difference in the combustion chambers of the 202 and 173.
be interesting 2 see the compression readings on each cylinder now .
and 2 compare them with a standard 202.
i bet it fly,s now.
cool so the 173 heads had the 202 rocker gear fitted.
sounds like its gunna be a very powerfull 6 cylinder motor now.

be interesting 2 see if there,s a big difference in fuel economy


good stuff Rothu thanks for the pictures. 

[able]

my engine guy is putting over sized exhaust valves in my 173 hc head. as well as new springs and the rest.  so you used the the 202 rockers?

how is my 202 with a 173 head going to go with the vk inlet manifold and straight gas cam? poor mans v8 i have been told

[MaTTe]

hey Rothu, sounds like you've got it all sorted now. Good to hear!

Did you get a CC on the head before it was fitted by chance? I'd be keen to hear what volume they are around standard.

Anyway, enjoy the motor, you sound happy with it so far.

[ben]

 

how is my 202 with a 173 head going to go with the vk inlet manifold and straight gas cam? poor mans v8 i have been told

you know why its a poor mans V8! cause you dont have to folk out 1000+ dollars for engineering certicicate!!!!!!  plus all the extra cost of v8 gear. not a bad option if you ask me brother!!!!

cheers
ben