I was looking through streetfire and stumbled upon this blow off valve. It looks nice and seems to work perfect, but it kinda looks like an HKS SSQV valve. What do you guys think?

http://videos.streetfire.net/video/6...3c00099ffa.htm

 

looks neat, any more info on it like a website?

 

www.synapseengineering.com i think thats the site.

looks like a good toy to have

 

http://www.synapseengineering.com/ar...tributors.html

Nice banner aye?

 

I cant find it on their website?

 

looks like it would cause a vacume leak at idle??? the way its open until you hit the gas

 

Well I just e-mailed them asking if they have tested it on an 93 RX-7. Lets see what what tey say..

 

JJ,

Thank you for the questions. This is the first BOV in existence that is designed to have an economy and race mode. Economy is what was on the video, the valve is open at idle, and so you are bypassing the turbo at cruising and all the restrictions that go with the intercooler, so you get better fuel economy. The race setting will have the valve closed at idle and vacuum.


However, for the RX-7 and other mass air cars, my recommendation is really to reroute the discharge back after the air flow meter, as it is OEM. I would appreciate it if you could forward this info to your fellow RX7 guys on the board.


Best regards,

Peter


Synapse Engineering Inc.

www.synapseengineering.com

(619) 520-1221

(858) 541-0900 Fax

Prototypical Innovation by Design


--------------------------------------------------------------------------------

From: J.J. Pardue [mailto:buffdaddy915@msn.com]
Sent: Friday, September 15, 2006 10:10 AM
To: info@synapseengineering.com
Subject: Info on your Blow of valve



Hey, Im wondering If you have tested this bov on a 1993 RX-7. I found a link to the video you guys made of it on an S200 on the rx7club.com. A little discussion brought up the fact that the way this is designed would cause a vaccum leak in our cars at idle.

Also, It looks like a nice product with an awesome design. Good job on getting your bov to work instantly like that.



So guys..whatcha think now?

 

Seems like a good BOV IMO. Also, it seems like that is a pretty cool guy to have gotten back to you so quick.

I wish I could hear what it sounds like in Race Mode. It seems so quiet.

 

email him back and ask to make a video of it in race mode.

 

JJ,



Here’s an updated video, so that you can hear the BOV on a moving car, and what compressor surge sounds like.



Link: http://videos.streetfire.net/video/6...3f0150f005.htm







Synapse Engineering Inc.

www.synapseengineering.com

(619) 520-1221

(858) 541-0900 Fax

Prototypical Innovation by Design


Just got that update today. Its not full blown race mode, but you can hear him get on it alittle bit. I sent an e-mail back asking for a race mode video.

 

That's bad ***. What the price, does anyone know?

J

 

keep us posted on if he makes a video in race mode.

 

Big question.........
I undestand the advantages of bypassing the turbo and IC during N/A operation,but what about all the dirt and dust thats being drawn in through the BOV, since its effectively bypassing the air cleaner?

 

The vid doesn't work anymore. Sup, buffdaddy?

 

yea like he said, what about all the dirt and crap that gets in there?

 

The new link works for me.

I'll keep you guys posted whenever he e-mails me back on race mode.

 

Sounds like the car keeps wanting to die!

 

Apparantly he thinks our car is "an air mass car"

 

2nd generation RX-7's (1986-1991) use a MAF (Mass Air Flow Meter). Or more commonly called just a AFM (Air Flow Meter) since it is not that massive. Mazda then went to MAP sensors with the later generation RX-7 models.