Red Pepper Racing

http://somender-sing...tent/view/7/31/

I've heard a lotta claims saying they make pretty good power and increased drivability when doin this. I don't know if this has been posted here before but its worth a look. Kinda reminds you of cvcc huh?

your thoughts? oh has anyone tried this with one of our heads?


-Zak

Intrestin.

wow im going to do this!!!!!

good luck!

I don't see how this could apply to the EW motor, as the combustion chamber is already the same size as the cylinder. Most of the example pictures there are on motors that have significantly smaller combustion chambers relative to the cylinder size, thus plenty of area to ‘groove’.

Interesting indeed!

i have a d16 did you see the one pic with the cylender head that had four valves i could work it just trial and error

I read about this a few years ago..and YEAHhhh it does sound interesting...but Signh is also a SMART ass Indian dude and has trial and error on his side....
You do this incorrectly,you just fragged one perfectly decent head...
I wouldnt,the reason he even did this is the shit ass quality of the fuel they have there in his part of india....
even with their low ass compression ratio,it pops and farts like a carbon fog decended upon it from the neatherworld...it NEEDED these mods to fire reasonably well.
doooooo not do this unless you have a degree in thermodynamics,know exactly where and DEPTH and design of the cuts,and as the major ..possess fast firing engine design tweaks and methdologies theories and the ways to execute them.
best case,it works....
worst case you weaken an already thin area that was made thin to save weight and still have sufficient workable strength,and hog into a water jacket,or a oil galley feed.....I'd say badddd juju.
drive it as is,or get a octane booster.
it's cheap and the shit works.
Edited by nature223, 28 June 2006 - 11:59 PM.

i got an extra si head that I've been wanting to start cleaning up... maybe I'll consider doing it on that

I definately would try this but I'd pay for them to do it since I don't believe I could even come close to knowing how placement of the groove affects the maximum combustion acheivable. Just my 2­¢ !

ANyone notice the almost 20% loss in performance on the Semi modification
and the *SLight gain over stock when fully modded?
i dont even know what hondas look like under the Top.. only the bottom..lol
i figured theyd be pretty efficient already.