Tial BOV Question...
Racer
Joined: Mar 2013
Posts: 392
Likes: 0
Good to know that the 10lb spring affects drivability.
Id rather have good drivability vs cool noise, like unreal said.
On a side note, that plate up front looks horrible on the blue Z. Beautiful car though, sounds mean!
Id rather have good drivability vs cool noise, like unreal said.
On a side note, that plate up front looks horrible on the blue Z. Beautiful car though, sounds mean!
Last edited by pikkashoe; May 13, 2014 at 07:48 PM.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
It can if you don't have enough vacuum to open it, or don't have enough BOV to bypass enough air. Ysi on a 2.75/8" pulley moves a lot of air at idle, more than 10lb single Tial can bypass in my experience.
Le Mans Master
Joined: Nov 2007
Posts: 6,419
Likes: 200
From: Wilkes-Barre Pa
I removed the wheel well and bumper extension to install the BOV. That should also be plenty of room to work on it or just take off band and remove whole thing.
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Racer
Joined: Mar 2013
Posts: 392
Likes: 0
Thanks for the response marsc6.
I guess i will have to look at it once I get the car back. Wondering if I can reach it from the top with out having to remove anything, i just need to take the 6 allen bolts out to swap the spring out on the BOV.
I guess i will have to look at it once I get the car back. Wondering if I can reach it from the top with out having to remove anything, i just need to take the 6 allen bolts out to swap the spring out on the BOV.
Racer
Joined: Mar 2013
Posts: 392
Likes: 0
Thanks unreal. Matt is just finishing up my car now. I'll drive it for a bit before I decide on that new spring. Doesn't sound too hard to pop that vband off. I'll have to look at it once I have the car back home to see what the vband looks like.
Safety Car
Joined: Mar 1999
Posts: 3,608
Likes: 180
From: Toronto, Canada
I agree with you on the better drivability as I also swapped from a 10# to a 3#. BUT, no way is it quieter. There is constant air escaping from the bov at cruising speeds that sounds like a jet plane. People will hear you from 3 blocks away... it's overbearing in my opinion.
Last edited by 95vettski; May 14, 2014 at 01:50 PM.
Racer
Joined: Mar 2013
Posts: 392
Likes: 0
Hmmm both of you guys that switched back to 3lb springs, are u guys running the stock ecs set up or smaller pulleys and restrictors off? I now unreal runs a smaller pulley but how about you 95vetteski? Just wondering if drive ability suffers only with the guys making big power and pushing more air than the stock ecs set ups.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
I don't think a stock restricted good vacuum cam will notice a difference. Now a big blower small pulley car with a lumpy cam will.
I did do two of them. Twin tials with -3 is what I run and it is only loud on downshifts when it is dumping a lot of air. Idle/etc isn't bad at all.
I did do two of them. Twin tials with -3 is what I run and it is only loud on downshifts when it is dumping a lot of air. Idle/etc isn't bad at all.
Le Mans Master
Joined: Feb 2009
Posts: 5,169
Likes: 199
From: Your Sister's Bedroom
I don't think a stock restricted good vacuum cam will notice a difference. Now a big blower small pulley car with a lumpy cam will.
I did do two of them. Twin tials with -3 is what I run and it is only loud on downshifts when it is dumping a lot of air. Idle/etc isn't bad at all.
I did do two of them. Twin tials with -3 is what I run and it is only loud on downshifts when it is dumping a lot of air. Idle/etc isn't bad at all.
Big blower big cam though...
Safety Car
Joined: Dec 2009
Posts: 4,754
Likes: 303
Run a Tial 50mm QR with 3psi spring with a filter on the discharge before your intercooler, then run a Tial 50mm Q with 10+psi spring on the intercooler end tank (top or bottom)
That'd be the best of both worlds for noise and breath fine.
That'd be the best of both worlds for noise and breath fine.
Last edited by turbotuner20v; May 14, 2014 at 04:23 PM.
Safety Car
Joined: Mar 1999
Posts: 3,608
Likes: 180
From: Toronto, Canada
Hmmm both of you guys that switched back to 3lb springs, are u guys running the stock ecs set up or smaller pulleys and restrictors off? I now unreal runs a smaller pulley but how about you 95vetteski? Just wondering if drive ability suffers only with the guys making big power and pushing more air than the stock ecs set ups.
Racer
Joined: Mar 2013
Posts: 392
Likes: 0
Finally got to drive the car. Just amazing!
As for the spring, Doug said all ecs kits ship with the 3 lb spring, unless a specific one is requested. As long as your vacuum is above 10 lbs or above at idle, then the 10 lb spring will work. And of course that the bov is open at idle.
I am going to drive mine for a bit, before I try the 10 lb spring.
It sounds wicked, but it also sounds like a street sweeper up until about 3500 rpms, then it closes up, until you let off the gas or shift.
Needless to say, its awesome.
As for the spring, Doug said all ecs kits ship with the 3 lb spring, unless a specific one is requested. As long as your vacuum is above 10 lbs or above at idle, then the 10 lb spring will work. And of course that the bov is open at idle.
I am going to drive mine for a bit, before I try the 10 lb spring.
It sounds wicked, but it also sounds like a street sweeper up until about 3500 rpms, then it closes up, until you let off the gas or shift.
Needless to say, its awesome.
Racer
Joined: Mar 2013
Posts: 392
Likes: 0
For those of you guys that have the # 10 spring, what color is it? The place I ordered mine from did not seem to understand what I was asking for. He did say the 10lb spring is not painted, at the end of our conversation, while the others are painted based on the weight of the spring (3lb red, etc). I dont want to put the wrong spring in my BOV. Let me know.
Going to try the #10 spring instead of the #3 I have in there now to see how the car drives. The street sweeper sound is getting a little annoying.
Going to try the #10 spring instead of the #3 I have in there now to see how the car drives. The street sweeper sound is getting a little annoying.
Last edited by pikkashoe; Jul 22, 2014 at 09:35 PM.