KDM_POWER

i have 97 civic stock HX motor and running t3 turbo. but
i like to know how much of boost(psi) i sould run for everyday drive?
i was planing to run 8psi was but please tell me how much i shold run?

PHiZ

Hrm, I'd like to hear some tuning theory about this motor and vtec-e.
-PHiZ

liam821

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PHiZ &raquo;</TD></TR><TR><TD CLASS="quote">Hrm, I'd like to hear some tuning theory about this motor and vtec-e.
-PHiZ</TD></TR></TABLE>

agree. Although the block is the same as the y7/y8 and is strong enough for 8-10psi with good tuning.

liam

LSiTurbo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by liam821 &raquo;</TD></TR><TR><TD CLASS="quote">

agree. Although the block is the same as the y7/y8 and is strong enough for 8-10psi with good tuning.

liam</TD></TR></TABLE>

I got some timba-lands y0! 20 dollas! j/k

PHiZ

http://www.leecao.com/honda/vtec/sohcvtece.html

Here is the VTEC-E theory.

Before vtec-e engages you are operating off of one intake valve, which promotes flow velocity, and combustion chamber swirling, resulting in more efficient burn.

When vtec-e is engaged it opens up the other intake valve.

So for turbo operation, you would want to engage vtec at a very very low RPM. You could even conceivably wire the vtec solenoid always on, or do some headwork and "pin" the vtec lobes always on.

I don't know the longlevity of the solenoid under constant operation like that.

And you can't simply swap cams, because from what I understand the HX has roller rockers to eliminate some valvetrain frictional loss (is that true?)

Basically, I think you would see gains by switching to a 1.6 non-vtec head

As far as actually TUNING around vtec-e, I'll have to think about it and adress it later.

-PHiZ

HXMan

I only run one pairbar of boots!

bottlefedb18c1

thank god i have a b18c and not worrying about a valve staying closed hahaha