gude-head-1NZ-FE

[H3LlIoN]

Originally Posted by Parmas

Re: Springs, If he said they aren't stock so why on Gude Describtion say:

"7. Valve springs all Gude performance camshafts are designed to operate to extreme rpm on stock valve springs, we spent countless hours designing and developing profile which WILL NOT require a high pressure valve spring which can cause added friction and valve stem failure due to the high loading of stiffer springs vale stem failure will usually cause major engine damage.."

Re: 10Krpm ... I am thinking to build more my motor but I never thought of reving it near 10K neither

Re: Springs...it's a generic package description. Most of his applications he is able to make his cams work with stock springs. He said though that on the 1NZ, the reliability just wasn't there, so they have to be upgraded, but they come with the cam when you purchase it. I don't know what all the fuss is about, his price is right in line with the $700 you guys are talking about spending on those other cams in the performance forum. As of right now, I am planning on just throwing the whole package on there and dyno-ing...if the goods get here and it's relatively easy, I might pull cams out and put them in my factory head and dyno for you guys. Also depends on cost of dyno.

As far as your build, 10k is not unheard of. It's been a while but, if i remember right, the key is a short piston with a long rod/throw. I wouldn't try and boost a 10k motor though, that's more of a N/A endeavor.