Good evening, all. Here's my current head setup:

B18C1 motor/head
OEM cams/sprockets
3-angle valve job
Port match on the intake side with a Skunk2 mainifold also port matched
Port match on the exhaust side
RC 650's
OEM GSR TB
All seals/gaskets were replaced about 20k miles ago
Garrett T3/T04E
MaxRev shorty exhaust mani.
2.5" exhaust piping with a Random Tech. 2.5" cat and 2.5" N1 muffler for daily driving
2.5" McCord electronic cutout directly after the downpipe for racing

For all the engine specs, go here: http://www.honda-acura.net/for...=1197

I made ~390 whp at ~20 psi on pump gas with the cutout open.

The exhaust has been spitting some black specs at idle and I'm feeling a lot of condensation coming out when I put my hand up to it so I think my head gasket may be going out (85mm Cometic). I'm going to replace it with an 84mm Cometic and I figured while I have the head off I might want to make some changes.

I need to try to keep this thing emissions friendly for CO so please keep that in mind. I've also always been told that Turbo Cams are a waste as the OEM GSR cams will easily make 650 whp (pounded into me by my tuner). Thoughts?

Does anyone have any recommendations for part replacements and/or shops? I can do the simple mechanical things as I built the whole motor myself, but I've never replaced valves/rockers/springs/retainers so I don't have the tools.

Any info would be great. Thanks.

 

Just throw in some ITR cams. The porting on the c1 head is fine up to like 600whp, maybe more.
I mean it wouldn't hurt, but for the amount that it costs, you might as well upgrade the turbo or something else.. .
LSD. turbo. something. .

 

Why would I want to put ITR cams (longer duration) on a boosted motor?

 

I'm surprised at the lack of turnout on this thread... bump.

 

duration is good, its overlap that isn't

 

Then why does everyone always say that the C5 is not a good motor to boost? Is it just because of the higher compression ratio?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by westcoaststyle &raquo;</TD></TR><TR><TD CLASS="quote">Then why does everyone always say that the C5 is not a good motor to boost? Is it just because of the higher compression ratio?</TD></TR></TABLE>

Yes..

ITR cams can make some good power on boosted B series. There is a bit more tuning involved - but it can be worth it. Terry (Boostfed) will vouch for this - he is the Honda-Tech example, gaining some 30whp from ITR cams alone on his B16.

I would agree with waiting on porting the head. I would add ITR cams and valvetrain and a nice intake manifold and work with the stock port for now. Probably more worth your money then a port job with stock cams and IM.

Just my .02 - everyones got one !!

 

Very interesting...

I already use a Skunk2 manifold so I'm good there. I'll have to look around for some ITR cams. Is the only difference between the GSR and ITR cams the duration?

 

still looking for more info...

 

yup, still...