tempsohc

what intake manifold is being used?

r1l3y91ef

This is very impressive! Good to see people still running well built n/a tuned b-series motors =D props!

BigBlock22

i couldnt help but replay the video a few times just so i could hear the engine rev past 9k. the car sounds awesome

EH3SiGRL

Victor X

jdm_ef9

Very nice numbers!

We are switching to a CNC head this year as well.

LowBudgetBEe

Better give luke at 4 piston a call. You're not gonna find a better place. Luke is a very knowledgeable person who knows his stuff and always willing to help even it's personal problems. Once u speak to lukeyou'll feel very comfortable sending your head their.

JDM809

Very nice number erynn. Big ups to lowbudget tuning putting out some of the fastest b series in the nyc area. Brandon is a beast when it comes to this stuff. He is very knowledgeable and tunes very good...

4piston

Remember that is 12hp over a pretty good head that was already making big power and running good numbers. It was 29hp over a third ported head. I wonder what it would be over a stock casting?

Power per dollar this is an affordable upgrade relatively speaking

J35monster

I was wondering the same thing, how it compared to a stock port head! Luke is the man, 4piston ftw! Def killin it and doin it with a budget friendly price.

NSXRguy

How does 4piston compare to rlz and the others? Talking about flow numbers...

ghost914

wow such great numbers from a b .. im looking forward to building one myself soon ..very impressive

LowBudgetBEe

all motor isnt easy so every little bit counts.

EH3SiGRL

Thankiesss

FlewByU352

Damn nice! Maybe I'm just out of it but do they only port GSR heads? lol I just keep seeing GSR, GSR, GSR, P72. How about the PR3?

4piston

We have a PR3 port that we have out being tested in an all motor car and one in a 1000hp turbo car and those heads are on their way back now for inspection. We don't put anything out without testing it, so once we get it back next week we will look at the key things we are looking for in the ports and then start running PR3s a week later. I have some PR3s cnc'd ready to go and a line of customer stuff ready to go in the machine. I just want to see the heads 1st hand after they have been run before I give the OK on them. We are 3-4 weeks from releasing that port.

Since you asked if we do other stuff, we have several K-Series ports available right now for different size motors and different racing applications. One machine runs K series full time, so we are still on a fast turnaround on K stuff right now.

teg_racer

what compression and cams are being used? that thing flys. getting mine tuned next month 85/89 12.9:1 with pro 2's

newtype_33

nice....

4piston

Big congrats to Erynn on the win this weekend at Englishtown. 121 mph on an 87 stroke isn't too shabby

We are proud to be a small part of your race program. There is nothing more rewarding to us then seeing people run well and leave the track with smiles. You all did a great job getting everything working together.

0c00l

Did you lap the valves before installing?

mvm

X2 !!

Awesome work guys.

N/A

shattamac

Nice #'s

4piston

Erynn are you racing at Honda Day this weekend? Best of luck if you are Stop by our place and say hi

2k.civic.si

so you went from a b16 head ported by headgames to a gsr head ported by 4piston....both heads made great power but your gsr head also raised the compression a bit so I would say either company knows how to port a head. anotherwards that power increase with the gsr head isnt just from porting

tempsohc

notice that the valveguides werent shortened? are they no longer doing this?