Synchronic BOV makes 28 more HP over the stock BOV?

[ragindark]

I saw this on youtube and was wondering if this was somebody on this forum and if the 28 more hp is real.

http://youtube.com/watch?v=oIAVLG2nh_U

 

[Reyan]

The BOV will not give anymore hp over the stock BOV, it's only for air, aftermarket BOV gives that sound that we all like, on the MS 6 the cai opens the stock valve and it sounds just like and aftermarket valve.

 

[shane02pro5]

It is definately possible if the stock one is leaking!

 

[numbnuts22715]

hmm, wouldnt really make sense for it to, unless the stock bpv was REALLY leaky. What was the final power for it? I cant watch the video since I'm in class.

 

[Sierra117]

If it is the TT 'Vette video, then yes, it does. The valves they were using on the 'Vette were leaky as s***, and when replaced, the Synapse valves held boost better and longer. This is what accounts for the added power.

Look at it this way: You have your car set to run 18 pounds of boost, but your stock valve isn't holding it. Its leaking and its loosing boost up top, where you are measuring for peak power. Now, you replace that valve with a stronger one. This new valve holds the 18 pounds you have set, and holds it all the way to redline. Because you are holding the 18 pounds all the way up to redline, you are going to logically dyno with more power.

EDIT: It looks like it is on a Speed3, didn't watch the video at first. Interesting. Very interesting. If anyone wants one, I have one I'm willing to sell. Just shoot me a PM.

 

[mikespeed3]

it is possible, with the amount of limiting the BOV does stock, the system is terrible they use stock. so i could see it being true

 

[GhostMercury]

watch the whole video. I don't know if you just dont have the understanding for whats going on with a turbo car. or you didnt pay attention to anything the guys said besides "a gain in 28 more hp"

In the video the guys explains that the gain is from 1.Bad gas 2.A leaking BPV that messed up the airflow from the turbo. Plus looking at his stock dyno numbers all he did was regain hp he should have had from stock, he didnt gain 28 hp over stock.

you know..?

 

[synapse]

Ghost- The stock car did 192 hp with bad gas on the stock BOV, then 220 hp with octane boost on the stock BOV, it ended up at 248 with the Synchronic BOV.

The real reasoning behind why a leaky BOV is bad is the following:

When you have a boost leak, you unload the compressor, effectively running higher RPM on the turbo, this gets you into a less efficient operating island on the compressor map which generates more heat and less Oxygen per molar unit. This also increases exhaust manifold backpressure, which is not good for scavenging. This is really where the HP gains are coming from. Which is why you can even see this effect with lower overall boost pressures.

 

[zim]

they should have just used the right gas in the first place and this test would be a bit more accurate. I'm sure the synchronic does help however.

 

[synapse]

they should have just used the right gas in the first place and this test would be a bit more accurate. I'm sure the synchronic does help however.

I don't know how we were supposed to know this to begin with. Customer filled up the day before as anyone would, and we didn't know until we saw the low numbers that something was amiss. So we put octane boost in it and got it up to the numbers it should've been showing.

What would've been shady would be to claim hp gain using the bad gas as the baseline. Don't you think?

 

[AutoXRacer]

My HKS made me gain an extra 10 or more HP!!!!!!! (2thumbs)

My stock BPV was leaking ever so slighly, plus it let excessive boost escape in between shifts (weak spring and cheesy design)...so yeah, between stock BPV and HKS it was night and day...

So upgrade that BPV and gain some HP...errr...gain back the HP...? (lol2)

 

[dread]

This is the biggest bulls*** I have every seen. The car is still adjusting to the octane boost. Thats why they don't show you the boost curve after the third dyno. The car is advancing the timing and they make it look like the BOV is adding 28hp. I can't believe how many people are buying into this B.S. Show me the boost curve and then I may believe it but the power increase is through the entire rpm band. The car usually doesn't bleed boost until the higher rpms.

 

[montrealms3]

My HKS made me gain an extra 10 or more HP!!!!!!! (2thumbs)

My stock BPV was leaking ever so slighly, plus it let excessive boost escape in between shifts (weak spring and cheesy design)...so yeah, between stock BPV and HKS it was night and day...

So upgrade that BPV and gain some HP...errr...gain back the HP...? (lol2)

Yeah, I'll be upgrading shortly . . . I cannot stand the lack of boost between shifts . . . I mean, I shift and it takes a second or two for the bosst to build back up and shove me into my seet . . . I didn't have that issue with my V70 (granted, it was an automatic).

I know a better BPV will not cure that issue 100% but it will help. Synapse, here I come.

 

[oaklandopen]

i can't believe and advertized 263hp can go alllllll the way down to 192hp (at first with "bad gas")

has anyone done a dyno themselves and gotten closer to bhp than this youtube vid?

 

[montrealms3]

i can't believe and advertized 263hp can go alllllll the way down to 192hp (at first with "bad gas")

has anyone done a dyno themselves and gotten closer to bhp than this youtube vid?

Yeah, I've seen a bunch near the synapse numbers. Go here to see them:
http://www.mazdas247.com/forum/showthread.php?t=123653857

I personally hope that Synapse is not trying to say that they will give 28hp over the stock car . . . I think the way they should say this is "By changing to our BPV, you will have the hp your car was supposed to come with, if not for the cheap BPV, which when new will give you the numbers Synapse saw, but after a while due to it's cheap plastic construction will start to leak, thus only giving 220hp instead of the 248hp that was seen with the Synapse" . . . or something to that effect.

 

[oaklandopen]

kinda makes me think of when the rx-8 first came out...and the owners were having problems with the rated hp rating from mazda, when they were getting like 50 less around the board

 

[dread]

I asked for the boost charts from synapses because the dyno is so sketchy and they don't report boost. I found out why, boost dropped by 2 psi with there BOV. This dyno is totally bulls***

 

[chaos4]

The statement that the stock BOV gets worse with age is also BS. :bs: I had my first dyno day with under 3,000 miles, WHP=239, TQ= 279.
Same motor setup at 32,000 miles. WHP=247, TQ=279.
Both times on a Dyno Dynamics machine which is typically 10% (in this case 20-30 hp) lower than the same car on a Dyno Jet.
Additionally, the power stayed for an extra 600 rpm on the "broken in" run.
I am now shifting at 6300 rpm without any drop off in power.
This has been a problem free, awesome car!(bowdown)

 

[palerider]

i posted the link where it showed the psi drop. The charts showed more hp and 2 psi less boost. That post was deleted. Who knows how many posts related to this thing have been deleted.

That video is nonsense... it should be thrown out. They show boost gain after one dyno and then when boost decreased on the last dyno.... they didnt address it. Driver311s testimonial is the only reason Im still halfway happy about the fact I ordered this thing.

Im about through with this forum.... if got 15k in my car so far and I count on being able to share information around here.. If your gonna delete posts that share information on these things.... "because of where it comes from"... it may end uop blowing some s*** up. Is 24/7 gonna help with my bill? Im ******* pissed right now.