STAGE 2 GTM supercharger BOV OPTIONS
 

I'm looking to change out the turbosmart BOV due to constant issues with sticking... I had seen a few threads on switching to the 50mm tial BOV which requires adding a different flange to the pipe. The tial QRJ comes in a 38mm size and should be a direct fit. How loud is the qrj tial vs the 50 mm ... has any one had any experience with it?

On the Air to Air setup the QRJ sounds a gazillion times better than the turbosmart. In fact I dont even sell the kit without the Tial anymore so guys arent disappointed in their system after they go Air to Air. The Tial is probably 3X louder because it actually gets the air out when it needs to instead of "trying" to.

Turbosmart = Wheezing Grandpa
Tial QRJ = Fighter Jet

I have GTM stage 1.5 with TIAL BOV and its sounds pretty awesome, on high revs it is a fighter jet.

Have you attempted to clean/lube the TS BOV? (Just thinking out loud, haven't done this on my setup yet... but I have TS BOV's)

Both me and kentomo280z are running the tial qrj bpv on our gtm sc kits with the 1.5psi spring. it flows twice as much air and doesn't flutter like the turbosmart bpv. you just have to remove the old flange and get the tial one welded on. it cost me 30 bucks at local shop.

I have cleaned and lube it dozen of times at first it worked for a month or two before acting up now there isn't any change in it. I think the brass piston may be worn down and slightly binding in movemen.

The qrj comes in a 38mm flange.was trying to find a direct fit without having to rework the pipe with a 50mm. I did see the vids of the tial 50mm swap and it sounded great that's why I was asking about the qrj size.....http://www.jegs.com/p/TiAL-Sport/TiA...39373/10002/-1


I did speak with a very reputable guy at Z1 and he said he seen a lot of guys use a 38mm wastegate with a lighter spring cause it had a larger opening than a 38mm bov

Right on.. that stinks.

Curious about a couple of things:
1) How old is it? how many miles?
2) Did you contact TS and if so, did they give any options?

I probably have the same valves so just looking for data...

[QUOTE=Jinxx;3694966]The qrj comes in a 38mm flange.was trying to find a direct fit without having to rework the pipe with a 50mm. I did see the vids of the tial 50mm swap and it sounded great that's why I was asking about the qrj size.....TiAL Sport QRJ 38mm Blow-Off Valves | JEGS

unfortunately the 38mm qrj bpv wont fit the 38mm turbosmart flange supplied with the kit, i initially thought the same, but the design of the lip where the valve sits is different for the tial and wont seal properly.

i wouldnt recommend a bov like the tial q series because there is no way filter the air as its being sucked into the engine under vaccum, this could lead to dirt and debris being sucked into the intercooler pipe.

I have been running the kit for just under 2 years about 30k miles
Called turbosmart.not much help they warranty is 1year ....not much they could do since the piston and housing are matched together so replacing the piston wasn't recommended

[QUOTE=jmroy6;3694974]
Well that sucks about the flanges ...and the bov is blowing air out while at idle with the super charger don't think there is anything getting sucked in.

Not sure if this is what you are after, but just saw it pop up in the classifieds:

http://www.the370z.com/parts-sale-pr...alve-blue.html

I tried both the Tial 50mm & the QRJ, with the supercharger spring. I had to have a new flange welded on for the QRJ.
The 50 mm was way loud. I only used it for a very short period of time. The QRJ is what I have ended up using full time. It was a little loud so I added a filter and wrapped the filter with foam and that setup works very well. It has never stuck and would highly recommend. Does not flutter for me either, where as all the others have.
I've also used the Synapse valves, both old style & new. I've spent a small fortune trying to fix the flutter issue.
QRJ ftw!! Stage 1.5 setup.

Was there any other issues with the 50mm other than being too loud ... flutter/ sticking... etc

I really can't remember... I have tried so many valves that I can't recall.
I actually had a 2nd BOV pipe made as I kept having new flanges welded on. .I'm sure that it did flutter , otherwise I probably would have put a filter on it to quiet it down.
The qrj works quite well..

I have my gtm supercharger 1.5 kit for 3 years and after constant issues with sticking and leaking turbosmart bpv I switched to qrj early this year. Zero flutter, hasn't showed any signs of sticking or leaking. I am very happy customer. There was nothing worse than stock closed valve during your track/autocross day. I would take it apart and clean the turbosmart at least once a month but extreme temps during track days or autocross would get the valve stick at any time. I'd recommend to bite the bullet and get the qrj.

Yea after this past weekend i gave one last service on it and no improvement soooo I'll be ordering a tial today...prolly the 50mm q

3 of us use the qrj... with no issue, something to consider

I looked at the QRJ really hard but decided to go with the Q sport from what I have been told the Q sport was louder

New BOV is here hoping to have it installed by Saturday

How did you end up liking the new bov? I'm looking to get either a q or a qrj to replace my old turbosmart

I love 50mm tial....but like everyone says ...it is very loud and you will be heard from a long way. If I had to choose again ..I would still get the 50mm lol . Sounds awesome.

Haha sick, that is tempting. It runs fine though? My sticky old Turbosmart sounds fine I just hate taking my bumper off to clean it every 3 months!

No issues with the tial sticking at all ....and as far as the turbosmart ..I thought it sounded fine ..until I got the tial ..boy was I wrong , there isn’t any comparison

Thats awesome man I'm glad you're loving it. I'm think I'm gonna go for the 50mm as well, if I have to weld the pipe anyways may as well go big!

I have the Stage 2 GTM SC as well, and I'm also getting annoyed at always having to service the TS BOV. So to understand this right, you need to have a shop cut off the old flange and weld on the new flange? Same location?

Yes ..the tial uses a different flange. And yes same location

Thanks guys. Any reason you can't just use something like a silicone coupler and clamps to connect the Tial onto the TS flange? Easier than cutting and welding? Screw this onto the intake side of the QRJ and hose clamp it to the existing TS flange? https://www.jegs.com/i/TiAL-Sport/768/004492/10002/-1

Kinda like this picture? https://uploads.tapatalk-cdn.com/201...06b8e7a642.jpg

Also, since we're venting to atmosphere, I supposed I'd need something like this on the outlet side? https://www.jegs.com/i/TiAL-Sport/768/004806/10002/-1

I’m sure you could rig something ...but I wouldn’t recommend ...the idea is for the air to get out fast as possible ...that could cause lagggy response and chatter ..

I mean I'd just connect it with a short tube so that the overall length is close to what it currently is. Maybe cut the tube to 2" or so. But you think the tube won't hold up to heat and pressure if I made it short? I figure the IC piping is connected by silicone couplers....

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It would hold yes ..but still I wouldn’t recommend

Understood. I'll call Tial tomorrow to confirm the V flange kit has everything needed, thanks guys

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And here we go... The ugliest brazing job in the history of mankind... But I think it will hold... https://uploads.tapatalk-cdn.com/201...fe8c795944.jpghttps://uploads.tapatalk-cdn.com/201...8e3b368a87.jpghttps://uploads.tapatalk-cdn.com/201...8e0466f4f4.jpg

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As long as it doesn't leak! :tup:

Got grinder...? ��

OK guys, got it mounted back up, started up the engine and the valve opens up and stays open at idle.... Sigh. This is the 1.5 lb spring.... Turn off the engine, closes back up again.. What is going on....


EDIT : just read on a supercharger, the valve SHOULD be open, so I guess everything is probably OK then? Man it's loud, at least with the bumper off and in my garage, it's loud haha


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[QUOTE=axio;3762305]OK guys, got it mounted back up, started up the engine and the valve opens up and stays open at idle.... Sigh. This is the 1.5 lb spring.... Turn off the engine, closes back up again.. What is going on....


EDIT : just read on a supercharger, the valve SHOULD be open, so I guess everything is probably OK then? Man it's loud, at least with the bumper off and in my garage, it's loud haha

It’s supposed to be open at idle ....and close when you hit the pedal ...open when pedal is lifted ...I did change spring out to the 5 lbs spring with no issue.....and yes loud ...even with bumper on lol

On cold engine mine stays open till like 3rd gear or if i let the car warm up for like 2mins...vacuum leak?

OK finally took her out. You guys aren't kidding - Tial QRJ sounds SO much better than the Turbosmart hahaha

It just opens and closes so much quicker and responsively too vs the Turbosmart. I did stay open at idle, but it seemed to shut, or perhaps partial open while idling, once the car warmed up, so I think it's good to go lol

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If you want to quiet it down, you can run a filter off the outlet. , (I ran an L- shaped hose to a small K& N air filter) and wrapped the filter with foam. Made a huge difference in the noise. I preferred to have it quiet.