Okay, can someone explain the reason for 1mm oversize valves,also I wanted to know will the engine have to be advanced or retarded. Just need a explanation because I dont understand this method.

You have some crazy posts, guy...

I would suggest reading up in some hot rod magazines or just forums in general on engines. Get some good exposure, as it can get pretty hairy around here if you're too green!

With that said, oversized valves simply give a larger cross-sectional area for air to move in/out of the cylinder. Depending on the engine, modifications to the pistons/deck height/etc need to be taken to make sure there's no interference since the valves at tilted wrt the cylinder bore.
Timing really has nothing to do with this on a basic level, though if you're moving lots more air you need to retard accordingly because of the extra density (fuel molecules will be closes, flame speeds are faster). Most factory ECM's run ignition up to knock then retard slightly, so they can take up the little slack if the valves is all that's different. That is, assuming you meant ignition timing. Cam timing is something different altogether.

In the simplest terms, just think of it this way. Bigger valve = bigger hole = increased volume for exhaust and intake flow. More flow = more HP

There's more fuel in there somewhere...

Someone plz give him a PDF of the Corky Bell book.....!
OR we will see more of this posts with no meaning at all....

Originally posted by Cyexmaster
Someone plz give him a PDF of the Corky Bell book.....! OR we will see more of this posts with no meaning at all....

Come on I am trying! Who else to learn from about cars and the proper way to punctuate sentences better than the forums RIGHT! (besides my English professor)

Originally posted by datdude_enzo
Come on I am trying! Who else to learn from about cars and the proper way to punctuate sentences better than the forums RIGHT! (besides my English professor)

you do this by searching, reading, learning. it was almost one full year after learning that I made my first post on this site.

+1

Originally posted by 420agreenvilleSC

Originally posted by datdude_enzo Come on I am trying! Who else to learn from about cars and the proper way to punctuate sentences better than the forums RIGHT! (besides my English professor)

you do this by searching, reading, learning. it was almost one full year after learning that I made my first post on this site.

Exactly, I lurked for 2+ years before I started making serious posts, because of that I haven't had to ask a quarter of the questions that most new people ask, if that.

Originally posted by datdude_enzo

Originally posted by Cyexmaster Someone plz give him a PDF of the Corky Bell book.....! OR we will see more of this posts with no meaning at all....

Come on I am trying! Who else to learn from about cars and the proper way to punctuate sentences better than the forums RIGHT! (besides my English professor)

Buy this.

http://www.amazon.com/Maximum-Boost-Turbocharger-Engineering-Performance/dp/0837601606

Another good read:

http://www.amazon.com/Turbo-Real-World-High-Performance-Turbocharger-S/dp/1932494294/ref=sr_1_1?ie=UTF8&s=books&qid=1256744939&sr=1-1

Coorky Bell's is a good one lots of info.

Originally posted by DarkOne

Originally posted by datdude_enzo

Originally posted by Cyexmaster Someone plz give him a PDF of the Corky Bell book.....! OR we will see more of this posts with no meaning at all....

Come on I am trying! Who else to learn from about cars and the proper way to punctuate sentences better than the forums RIGHT! (besides my English professor)

Buy this. http://www.amazon.com/Maximum-Boost-Turbocharger-Engineering-Performance/dp/0837601606

Great book. I've read it many times.

datdude_enzo: You could spend hours trolling the forums after someone tells you to search, or you could spend the time reading that book. I would go with the book and if you still have questions after reading it, start trolling.