Just out of curiosity, I am only getting between 16 and 14 inHG. Is that about right, if not, please help me achieve more, give me some tips to get me back over to the 22 and 20 area if that is what you guys are getting...

 

What are you running for base timing and what is your cam gear timing?

 

I am running 16 degree base timming, my cam gears are set, +1 on intake and +3 on exhaust...

 

My main question, how much inHG should a motor create with Skunk2 Pro2's??

 

21.1"Hg to 19.7"Hg (300mbar to 350mbar absolute)

+2 IN / +7 EX, but the head is slightly decked, as is the block.
Idle speed = 1000rpm
Runs 21 deg BTDC of timing at idle.
The IACV bleed screw is loosened a turn or somewhere around there.

 

thank you in vtec, that is what I was looking for...I just need to go further with my cams, or so it looks...

 

bump for anyone else...
and in vtec, what compression are you running, can you tell me a little about your setup, do you have a dyno that you could e-mail me or post up???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pomansouth01 &raquo;</TD></TR><TR><TD CLASS="quote">I am running 16 degree base timming, my cam gears are set, +1 on intake and +3 on exhaust...</TD></TR></TABLE>
try more timing idle. Hopefully that will help a little.

 

i got 12-14 in hg on my b18, this was on pro1's though, that was at 22 deg timing

 

I never cc'd the pistons, but they're JDM ITR .25mmOS pistons with a GS-R crank.

The engine uses a GS-R head, but each chamber has a volume of roughly 45cc because the valves were deshrouded a little and the chambers were polished.

It also uses a .036" head gasket and the pistons sit at or slightly above the deck.

I estimated it at roughly 11.0:1 to 11.5:1.

The cams were degreed in and I'm using a Hondata S200. Nothing real spectacular...everything just seems to work pretty well together.

I don't have a dynograph, but I can tell you that these cams are very thirsty cams, especially above 4500rpm. Between my previous stock bore/Skunk2 Stage 1 cammed setup and this one, the LO required roughly 45% more fuel to hit the same target AFR in the midrange. Above that rpm, it'll require significantly more than that. The injectors never changed and I'm running the same fuel pressure.

I really haven't had much time to get to a dyno. At some point in all of this, I realized that cars weren't my entire life, but I'll put one up when I can.

 

sweet dude, that sounds great I will definently try to advance the exhaust a little more to see how it affects everything.