What does everybody run for blow off valves, on an 400whp daily driver setup? I want something that will eliminate compressor surge.

B18C1 12-18 psi of boost

 

Tial 50 mm Q with a 8 lbs spring.

 

agreed!

 

question, i know you've been in the turbo world a long time...but....

according to the tial chart 21-22in of vacuum would use an 11lb spring

last two b18c's i've tested were 21 and 22.5"

 

well too much spring and youll get compressor surge.. but follow tials instructions and see if you like it..


I know a few guys running tials and they love em. I use the HKS SSQV and i love it

 

Im kinda leaning towards the Greddy Type-R Series II BOV

http://www.youtube.com/watch?v=P4Xdmk7qsGo

 

too much spring and it just doesn't open.

wonder if the shodan will stop by on readings regarding measured vacuum at idle and spring pressure

 

i like the synapse solution
these guys are way ahead of the curve http://synapseengineering.com/

 

For the TiALs, going by vacuum pressure at idle is best. I've seen a lot of that synapse vs. TiAL attack where the Synapse guys use the wrong spring based upon vacuum, then claim it was the design of the valve that was the problem. (what an immature tactic).

Anywho, here's the spring chart list. Most Hondas use 11psi based upon vacuum, but I have seen it set a bit lower in case there were changes. The GReddy R is quite adjustable for use (not sound), and is MUCH larger than the RS, (47mm) so there's no need to worry about the vacuum reading so much.

http://www.tialmedia.com/documents/w3_tial_bovq_sp.pdf

 

Yeah I miss my greddy R. I had to cut a coil off of one of the springs inside of my RS to get the surge to go away. I will be trying the inlinePRO bov soon and hope it does better.

 

Im really liking the sound of the Type-R Greddy valve

 

^ Regarding the supra greddy type-r video:

When the bov flutters like that, I thought that was an indication of the bov not working properly and compressor surge? Is that the case or is it normal for that bov to sound like that?

 

Tial Q here, love it

 

I don't think its actually compressor surge, I think its just a loose adjusting bolt on the top of the BOV

 

I bought my tial with a 11lb spring for my boosted b18c1 and not sure if its gonna be too heavy of a spring or not.

 

Currently using a Tial 50mm, and I love it.

 

$12.99 would have saved guessing

http://www.harborfreight.com/fuel-pu...ter-93547.html

 

lol the car doesnt run yet. I just remember that it fell into the 11lb spring range when i ran it last year

 

X2

 

im still using my original greddy type s that i bought about 6 years ago. if i had to get another one id go with the tial

 

This

I'm running relatively low boost 11 lbs.

 

whats your reason behind that i love the type-s bov and was pissed greddy discontinued making them

 

tial and went with what they recommend with the spring chart!
No problem here with it!

 

you pretty much got it with they dont make them anymore. mine is showing its age, the threads pulled out on the adjustment bolt on top, i had to retap it a larger size.

 

I just took my Type-S off of the car and went to a Type-R for the new setup. I loved the Type-S, and the thing is still in great shape, but for the higher boost pressure on the larger turbo, I found a barely used Type-R for a hell of a deal, and it better suited me.