Aftermarket bov

**feyd182** · 06-12-2011, 08:41 PM

Just wondering if I still need to leave the factory BOV in place or can I just block it off and use an atmospheric BOV in it's place. I got a Turbosmart vee port BOV with the car and would like to use it. This is on an RB20 btw.

**quadracer111** · 06-12-2011, 09:31 PM

Just take out the factory one, plug off the recirculating hose, and install the aftermarket one.

The car might stall when you are driving and shift into neutral (say if you are coming to a stop light), and it might idle rough.

**flipridah17** · 06-12-2011, 09:59 PM

I got Blitz DD BOV on mine.. Idles great, sounds great and gas mileage is still the same.

(Mind you I have it on stock boost and the setting for my BOV is set to stock as well)

**Ghost** · 06-13-2011, 01:25 AM

TIAL BoV here, runs/ idles awesome... odd backfire .50 cal shot as i like to call em. Took a bit to adjust the spring to proper tension, and yeah you can either remove the recirc hose and plug it where it meets back to the intake or leave it on and plug off right next to it. My buddy used a pop bottle cap no joke, lol!

**feyd182** · 06-13-2011, 03:18 AM

Cool, thanks guys! Can't wait to hear what this thing sounds like.

**flipridah17** · 06-13-2011, 03:38 AM

Originally Posted by Ghost

TIAL BoV here, runs/ idles awesome... odd backfire .50 cal shot as i like to call em. Took a bit to adjust the spring to proper tension, and yeah you can either remove the recirc hose and plug it where it meets back to the intake or leave it on and plug off right next to it. My buddy used a pop bottle cap no joke, lol!

haha i did the same on mine! Mighty Car mods style! lol you got so many colors to choose from..

**Skym** · 06-13-2011, 04:27 AM

Recirculated Synapse BOV, 0 backfires. Way better than modified or stock BOV with acceleration when going from boost to offboost and then back to boost again. Installed using Synapse boost connect kit, etc and 0 problems so far (nearly 1 year).

This Synapse BOV -

http://synapseengineering.pinnacleca...ack-567-0.html

If I had the choice at the time, I would have got this version of Synapse BOV with better flange design -

http://synapseengineering.pinnacleca...ent-571-0.html

**Tairance** · 06-15-2011, 02:46 PM

Originally Posted by quadracer111

Just take out the factory one, plug off the recirculating hose, and install the aftermarket one.

The car might stall when you are driving and shift into neutral (say if you are coming to a stop light), and it might idle rough.

I decided to cheap out on a BOV and just unhooked and blocked the recirc hose. I was having terrible idle and stalling all the time. I quickly hooked everything back up. I just bought a blitz bov. Is this going to happen when I install it too? What was the reason?

**DarkCaporaL** · 06-15-2011, 03:10 PM

Blocking off the recirc piping and blowing off to atmosphere creates a massive air leak in a MAF system, which the ECU doesn't know about, so it makes the engine run rich every time it blows off = no no.

**needavdub** · 06-15-2011, 04:21 PM

Originally Posted by DarkCaporaL

Blocking off the recirc piping and blowing off to atmosphere creates a massive air leak in a MAF system, which the ECU doesn't know about, so it makes the engine run rich every time it blows off = no no.

I'm not too knowledgeable on this with Skylines, but I don't see how that would create a rich condition. Even when it's recirc'd it's plumbed in after the MAF, so it's unmetered to begin with. I know that's the case (rich at shifts) with Subaru's and many other newer cars, but I don't really see how a BOV could cause a rich condition with the Skyline's engine management. I could be wrong though.