TurboXS hybrid valve installed...questions

[jville]

That lil bit richer running will hurt gas milage also. In the long run it could cause clogged catalytic conveters.

 

[builthatch]

are you guys saying this regarding the hybrid valve or a normal full VTA valve?

 

[jville]

I was referring to full VTA. Sorry should have been more specific. I believe thats why XS came out with the hybrid specificaly for our application, to counteract all the neg effects of vta in a maf system.

 

[AutoXRacer]

So you guys are telling me that the hybrid valves do not negatively affect our engines in any way? They perform exactly like having a recirculation valve (engine/tuning/drivability wise)...?

This is the description of each valve:

Recirculation Valve
TurboXS releases the first full factory replacement re-circulating bypass valve designed specifically for the Mazdaspeed 3 & 6. It offers a direct bolt on capability without the hassle of universal adapter kits. Each flange is beefy to keep it from warping and allowing you to have the best mating surface possible. Exceptional performance gains are found by holding boost higher to red line and allowing your turbocharger to operate more efficiently. If pure function is over noise is your goal this is the valve you need.

This statement in red is the one that makes me indecisive on the hybrid.

Hybrid Valve
TurboXS releases the first Hybrid Blow Off Valve designed specifically tuned for the Mazdaspeed 3 & 6. The valve features an innovative re-circulation and vent to atmosphere operation. It has been tuned to offer the best blend of vent to atmosphere and re-circulation without check engines lights, stumbling or the dreaded back fire issues that are commonly associated with Blow OFF Valves and turbocharged cars that use Mass Air Flow configurations. Each kit will bolt directly to your Mazdaspeed without any additional parts.


I definitely don't want to mess my current A/F ratios levels, even if its between shifts. Can anyone confirm that the hybrid valve has absolutely no negative affects on the engine/tuning/drivability?

Thanks guys (2thumbs)

 

[Sierra117]

It has to do with the way our ECUs run the car. At low throttle, the way the ECU is running it is measuring all the air through the MAF and needs to recirc or else you run rich. At WOT, I believe it is running in a different loop, and you can VTA because its measuring air at the MAP, not the MAF. Thats why in the 335is you can run VTA all the the time, its always measuring MAP.

 

[aaronc7]

my two cents. I had the Turbosmart hybrid. It sounded great and I loved the fact is was so easily tunable (twist the top to increase/decrease spring tension). I did get a few backfires/it stumbling between shifts a few times, but only at low RPM. I've never really heard many people complain about those probelms wtih the TXS one though...so maybe it has a better design (plus the fact its designed specifically for the MS3). I didn't notice the problems when I ran the turbosmart valve, but when I put the stocker on i instantly realized it just drove smoother/better.

 

[mrlilguy157]

I definitely don't want to mess my current A/F ratios levels, even if its between shifts. Can anyone confirm that the hybrid valve has absolutely no negative affects on the engine/tuning/drivability?

Thanks guys (2thumbs)

I've been running the Hybrid since I got the car back in May of last year.

The car has never stuttered, gone crazy rich and lead to a backfire, or caused any sort of drivability issues.

There is nothing but positive comments coming from me over here...

 

[builthatch]

I've never really heard many people complain about those probelms wtih the TXS one though...so maybe it has a better design

i think the important variable between the two is that the TXS unit has an adjustment that can be quantified easily, meaning...4 washers if you call TXS. with the Turbosmart piece, there is a less defined adjustment point due to the screw action, so you might be a little loose or a little tight vs. where it "should" be.

 

[LittleRedWagon5]

first things first, this thing is typical turboxs- perfect machining, clear instructions and complete hardware. I don't particularly care about sounds of BOV as long as they are not too loud, but it sounds neat without being obnoxious like some of the full VTA valves can be.

so...i installed it with 4 washers against the spring and it seems to be working a-ok. i got the 4 washer suggestion from jermaine aka "money" at turboxs. i'm curious, is that what you all are running with stock boost? also, i know it doesn't matter because i'll be running the Cobb intake soon, but i'm curious why they could not have made it just a little bit shorter to allow for all of the stock ducting to stay in place. oh well, no biggie, but still ; )

anyway- it works well, hopefully it'll prevent any potential leaks and keep that thing spooled.

What ducting do you have to remove ? I ordered one of these valves yesterday ? Do i have to have a CAI system ?

 

[builthatch]

What ducting do you have to remove ? I ordered one of these valves yesterday ? Do i have to have a CAI system ?

you'll see; it's a plastic cover to the right of the valve. it interferes with the valve since the txs unit is taller than the stock valve.

you don't need a cold air intake with this...they are seperate entities.

good luck and enjoy!

 

[LittleRedWagon5]

picture ? maybe if possible.

 

[Imprtracr1]

I must be the ONLY person on this forum who has the TXS Full Recirc valve. I LOVE IT. Its the PROPER set up for our cars. I have the MSCAI and the TXS Downpipe and Race Pipe as well. You can definately hear the Bypass valve on a closed throttle (shifting) and its noticeable. Gains are excellent. I am running all 6 washers inside the valve per the suggestion of TXS techs that I called TWICE to verify that was the correct amount to use. Sooo I would go with the Full Recirc Valve if I were in the market like many of you.

 

[builthatch]

I must be the ONLY person on this forum who has the TXS Full Recirc valve. I LOVE IT. Its the PROPER set up for our cars. I have the MSCAI and the TXS Downpipe and Race Pipe as well. You can definately hear the Bypass valve on a closed throttle (shifting) and its noticeable. Gains are excellent. I am running all 6 washers inside the valve per the suggestion of TXS techs that I called TWICE to verify that was the correct amount to use. Sooo I would go with the Full Recirc Valve if I were in the market like many of you.

-a hybrid valve is just fine for the ms3. it's not any better or worse than their bypass valve.

-gains are excellent? how did you quantify those 'gains'? datalog? dyno?

-why the emphasis on the washer quantity for the bypass valve?

 

[Zimmer]

it's pretty loud even with a stock intake. i mean it's noticeable.

when i put the cobb intake on, and drove by a dude getting his mail, i spooled then let off and the dude ducked and spun around as if i threw something at him.

hmm, maybe i'll try to do a video myself (direct)

hahahaha thats great!

 

[LittleRedWagon5]

Well I got mine and installed it, not bad at all. I like the sound. Its subtle but noticeabe. I decided to go with the 4 washer setup for now. I'll drive it for the weekend and see how I like it, It seems to spool quicker and pick up faster.

 

[Imprtracr1]

-a hybrid valve is just fine for the ms3. it's not any better or worse than their bypass valve.

-gains are excellent? how did you quantify those 'gains'? datalog? dyno?

-why the emphasis on the washer quantity for the bypass valve?

Obviously you're wanting to be the smart ass of this thread so I will indulge your query..

Gains with the Bypass valve ARE NOT based on a dyno chart OR Datalogging. But, rather based on the old fashioned BUTT DYNO. YES INDEED. After installing my first one with only other mod being the MS CAI, the car felt much more responsive and the powerband felt much healthier. That first valve failed (got stuck open) so I sent it back to get replaced. I obviously had to put the stock BPV back on and immediately felt a loss of power and response in comparison to the TXS BPV. So in the mean time I installed the TXS DP and RP and felt that the gain from those were very over hyped, and figured/hoped that when I got my new valve from TXS it would be the key ingredient missing for supporting the mods already done. IT WAS! I got my replacement valve, called TXS to ask about how many shims they said I should use (6) which seemed like alot for some reason based on other peoples set ups in here, hence the emphasis on the number of shims in my above post.. and like I said, The BPV made a huge difference in the way the car performed with the other mods. The Response, and powerband was back as soon as the TXS valve was put back on, and YES the stock valve was not leaking at the flange and all hoses were secure.

As for the HYBRID, we all know its metered air going in and your losing 50% with the valve on closed throttle. Its your choice.. I could care less. Mazda engineers tuned it for recirc.

 

[builthatch]

Obviously you're wanting to be the smart ass of this thread so I will indulge your query..

i am not sure where that came from. i am simply prefer that information presented to be explained or backed-up since forums have a heck of alot of impressionable people reading about mods such as this. i asked, you explained and there you have it.

to add, Mazda might have engineered it for full recirculation, but as long as the car doesn't react negatively in any manner, and shows no ill effects whatsoever, there is no reason in particular to recommend one over the other. the OE engineering thing pretty much goes out the window with alot of these modifications (downpipe, race pipe, intake without factory map housing, etc) and at that point it's a matter of whether or not the product actually works, outside of hypothesis. it literally either works...or it doesn't. if it shows any type of ill effect, then it doesn't work. txs hybrid valve shows no ill effects. turboxs reports not one instance of issue, and my personal experience with it reflects that. i give them props for engineering it properly.

 

[Imprtracr1]

i am not sure where that came from. i am simply prefer that information presented to be explained or backed-up since forums have a heck of alot of impressionable people reading about mods such as this. i asked, you explained and there you have it.

to add, Mazda might have engineered it for full recirculation, but as long as the car doesn't react negatively in any manner, and shows no ill effects whatsoever, there is no reason in particular to recommend one over the other. the OE engineering thing pretty much goes out the window with alot of these modifications (downpipe, race pipe, intake without factory map housing, etc) and at that point it's a matter of whether or not the product actually works, outside of hypothesis. it literally either works...or it doesn't. if it shows any type of ill effect, then it doesn't work. txs hybrid valve shows no ill effects. turboxs reports not one instance of issue, and my personal experience with it reflects that. i give them props for engineering it properly.

My bad man.. I feel like a douche bag. I had a looooooong day and that wasn't called for.. But yeah.. as for the Hybrid its not going to hurt anything.. I mean an occasional backfire at the worst.. thats all no biggie. So anyhow Im just saying that I don't think people go for the Recirc kit as much but I'm telling you its audible.. You can definately hear it. Probably not as loud as a VTA or the Hybrid but you can definately hear it. Its really just preference. Loud, or Louder.

 

[hyperpm]

vid http://www.flickr.com/photos/26714072@N02/2864684310/

 

[Nokkers3]

Anyone still have this on their car? If so, what are your reviews now that you've had them for awhile?