1.7l 914 heads

bpcatdog · Post by **bpcatdog** » Fri Jan 23, 2004 7:03 pm

Inquiring minds would like to know also (ME!).

Louie

raygreenwood · Post by **raygreenwood** » Sat Jan 24, 2004 4:00 pm

Do not try to re-size valve seats. Yes, it can be done...especially by someone like HAM...if they were the ones installing the seats...and knew everything about those seats.
Just like drilling out the center on a valve guide (which is also an inteference fit)...to relieve tension before removing it, re-sizing a valve seat, when you don't know how tight or loose the interference fit is...will also relieve tension, possibly resulting in the seat falling out. The proper way to do this, is to re-size the seat before doing the interference fit install. But at that rate...since the seats are out...and the valves cost about the same....just change the seats and valves to the correct size anyway. Ray

HAM Inc · Post by **HAM Inc** » Mon Jan 26, 2004 8:12 am

Troy I'm going to let Jake advise you on the cam selection. He's worked closely with a popular grinder to develop cams for a multitude of TypeIV combo's. With the extensive dyno testing he's done in this area he is far more qualified than I am to make a recommendation. But thanks for asking.
Len

Boneloader · Post by **Boneloader** » Mon Jan 26, 2004 7:06 pm

HAM Inc wrote:Troy I'm going to let Jake advise you on the cam selection. He's worked closely with a popular grinder to develop cams for a multitude of TypeIV combo's. With the extensive dyno testing he's done in this area he is far more qualified than I am to make a recommendation. But thanks for asking.
Len

Thank you, Len. I've been searching the archives and there is a wealth of information out there. I think I'll put a mild (aftermarket) cam in it and see how it works. If it works ok, I'll drive it--and if I am disappointed I'll just big bore it!! Gotta start somewhere.

Troy

HAM Inc · Post by **HAM Inc** » Tue Jan 27, 2004 7:28 am

You're welcome Troy. Hope it works out the way you want!
Len

bpcatdog · Post by **bpcatdog** » Tue Jan 27, 2004 9:00 am

Len,

Just waiting to talk to Jake about the cam and what he recommends. As soon as I hear from him, I'll call you back and we can finalize on what would be a good. Unless what you mentioned to me yesterday is good overall, than I'll just send off the heads as soon as I can.

Louie

HAM Inc · Post by **HAM Inc** » Tue Jan 27, 2004 2:11 pm

Louie if you're staying with the stock 1.7l bore (90mm),what we went over yesterday will work just fine for you regardless of the cam you choose. Ofcourse a cam will help you take advantage of the cylinderhead mods.
I don't like going up on the intake size with the 1.7l cylinders because the valve ends up so shrouded that it's not worth the trouble,(ie. expense)
Len

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1.7l 914 heads

cam selection

Re: cam selection