cool heads

[ban06shee]

will i lose top/bottom end power when i put on cool heads 18cc domes? if so how much or where at, anything really noticable? if there is a loss in power somewhere whats the best mod to keep the power all the way around? i got t6's with k&n pods and outerwear, adjustable timing will be moved up to +5, v-force3 reeds, i run 91oct. im at 2389 elevation. thanks for the help

[278]

Your biggest hold back is those T-6's go with some T-5's but no you wont lose anything from the head it should give you power all over, as far as timing, any particular reason your going to 5 most people go to +4, just a question not knocking you bro but with the 18cc domes and +4 or 5 timing you might have to run a higher octane it depends on your compression when your done

[ban06shee]

Your biggest hold back is those T-6's go with some T-5's but no you wont lose anything from the head it should give you power all over, as far as timing, any particular reason your going to 5 most people go to +4, just a question not knocking you bro but with the 18cc domes and +4 or 5 timing you might have to run a higher octane it depends on your compression when your done

yeah i know, i didnt expect to even get this far in mods but once u start theres no end to it and im just in the beginning! lol no reason that just what they told me to run it at since im using 91octane before i had the heads put in it was at +4 and now with the heads its at +5, they said if i bump up the octane i cold run it at +7 with race fuel. i do regret not getting some t5's or cpi's but i was only going to pipe and jet it now its just a list of things i want done.

Edited April 17, 2009 by ban06shee

[278]

I feel ya man i did the same thing, and working my ass off all of last summer and $3000 dollars later there's what's in my sig. and just getting started lol. ok I was just curious, I think +4 or 5 is fine. Just do a compression test once you get it put together and tell us what it is and we can help you better with octane, because that seems a little low on octane for your timing and domes, but you can make an accurate decision without know what your comp. is.

[2003LimitedBanshee]

I can't imagine not needing to run race fuel with those domes and that much timing. I run 20cc domes in my head and at 1900' I have just over 170 psi in each cylinder, coupled with the +4 timing, I run trick race fuel when I go to the dunes at sea level. With 18cc domes and +5 timing, I just can't see a way that you aren't going to need it. With the T6's I assume you are unported?

[ban06shee]

I can't imagine not needing to run race fuel with those domes and that much timing. I run 20cc domes in my head and at 1900' I have just over 170 psi in each cylinder, coupled with the +4 timing, I run trick race fuel when I go to the dunes at sea level. With 18cc domes and +5 timing, I just can't see a way that you aren't going to need it. With the T6's I assume you are unported?

yeah, no port job.