see this is what i see a lot. before you stated that the “b18c1 head flows better” and that i’ve never heard before.
some people say that yes the b18c1 yeilds more hp—but is that due to better flow characteristics? or is it purely due to the higher compression because of the smaller combustion chamber?
well, this really isn’t important at all to anything i’ll be building in the future, i guess i just can’t help but pick people’s brains to learn more.
oh, and fatbooty, how come you never emailed me back?
“a PR3 head will provide a bit more ability to run stratospheric compression ratios.”
How come? The B18C head will allow you to use a flatter piston than the same engine with a PR3 head and still yield the same compression. A flatter piston has less surface area, so the flame front has to travel less before it acts upon the piston with force.
Are you saying that the PR3 head is less prone to detonation?
Ok guys well let’s try to stay on topic here. Because of price and ease of finding it, I’d be going with a b16a1 / pr3 head, and there will be headwork done on this head. So let’s swing back to the original topic:
Will a ported vtec head with new seals & valve springs make make more or as much power than a Notec head with cams & springs and headwork? If it’ll make as much power, why is lsvtec a bad idea? power drops off at 7500 due to longer stroke anyway. And the CR is bumped up anyway when you sit a stock vtec head on an LS block. Where’s the problem!!!
Please argue why I should either work my LS head or build a semi Lsvtec setup and complete the monster next year!
MrFatBooty: I’m sorry, I think that is a stupid thing to do. Whatever, I’ll decide on my own if the majority of people think a built bottom end is the best way to spend $1500 on a stock engine!!!
Teg 92,
I see no reason why you don’t just go for the LS/VTEC and make sure you don’t bring it up too high. Work on the bottom end later, if this is a money issue then go for the head no and the bottom end later.
teg92,
Although I do not own an integra myself, I have a friend who has done the LS/VTEC upgrade without touching the bottom end(needless to say he has since upgraded) but he drove it for a year with an 8200 RL and the bottom end looked great when we opened it up.
Rotax/Haase: That’s really me in my pic. Except I cut my hair. Doesn’t look like that anymore.
teg92: I can’t tell if you’re being hostile or sarcastic. I was making a joke, hence the :D. Anyway, I feel that since you’re planning on doing this in steps, building up the bottom end will give you the best result when you finish the project. Plus it leaves you the option of either building up the stock head or swapping on a VTEC one.
