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I havent actually read most of the recent comments in this thread, so dont flame me if it's a little off topic, but Im just going to add my 2cents worth anyways... one very important point that it...

USDM B20z = AUDM B20b8, both have PHK pistons

More than you will ever make naturally aspirated

Im gonna take a stab in the dark and say those spikes are where the dyno starts the ramp

IMO I think people are getting a little hung up over dyno figures

Shouldnt have any problems if you are running a LSD

Im assuming CTR/ITR cams

The JDM 4-1 will make more power though

I just blocked off the port on my IM, otherwise I would have removed the filter from the top of the breather tank and ran a hose to my IM with a PCV valve. Also, you dont need to use both hex plugs...

http://c2.ac-images.myspacecdn.com/images02/122/l_58039dd80aa147f68347ad4bdd8ede5d.jpg

There has been a few good discussions about PCV setups in a few of the older B20 threads.

Here's a few posts that were made awhile back in my build thread..... not sure how helpful it is but Im...

Would make little difference on a dyno though....

Dont quote me on this but I think BC spec4 is a copy of skunk stage2 cams

I second this....

Check yellow pages for a fastener shop in your area

Do you have the dyno printouts for a comparison?

:thumbsup::thumbsup::thumbsup:

You should really round off the egdes on the pistons, those sharp edges promote detonation

Here's a slightly better picture

http://c1.ac-images.myspacecdn.com/images01/34/l_4f822a6c5a74d2477e421d420467a700.jpg

Cheaper alternative for toda header.... http://www.spoolinperformance.com/spfab-bseries-header-p-464.html

They are the pistons used in the B20B8 which will give you higher comp compared to the pistons used in the B20B3

9.96:1 with PR3 B16a/B18cR head
10.14:1 with P72 B18c head


This is using a B20B8 with the PHK pistons.....

My B20VTEC has seen 8000+ rpm on a regular basis without issue... IMO it's poor tuning/detonation that cracks sleeves

I made 170ish kw @ wheels on stock sleeves.....

What sort of compression are you running?