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J308
J308 Reader
3/21/12 3:48 p.m.
92CelicaHalfTrac wrote:
DaveEstey wrote: Recirculating BOV solves the noise problem.
Mayyyyybe. Depends on the valve. My MSM is set to recirculate, and it's still one of the loudest valves i've ever heard.

Maybe is right. The HKS SSQV on my Evo is terrible. It flutters like mad, and chugs the engine if you try to pass someone on the highway. It is recirc.

vooooooOOOOOOOOOOSSSSSSHHHHHHHH!!!!!!!! PPPPSSSSHHHH!!!! GOBBLE GOBble gobble gobbble....

Get a TIAL recirc, but make sure you get a legit one (use a spotter's guide), and you'll be quiet and happy.

92CelicaHalfTrac
92CelicaHalfTrac MegaDork
3/21/12 3:54 p.m.
J308 wrote:
92CelicaHalfTrac wrote:
DaveEstey wrote: Recirculating BOV solves the noise problem.
Mayyyyybe. Depends on the valve. My MSM is set to recirculate, and it's still one of the loudest valves i've ever heard.
Maybe is right. The HKS SSQV on my Evo is terrible. It flutters like mad, and chugs the engine if you try to pass someone on the highway. It is recirc. vooooooOOOOOOOOOOSSSSSSHHHHHHHH!!!!!!!! PPPPSSSSHHHH!!!! GOBBLE GOBble gobble gobbble.... Get a TIAL recirc, but make sure you get a legit one (use a spotter's guide), and you'll be quiet and happy.

Mine WORKS fine, but it sounds like i'm making eleventy billion horsepower at all times and it's releasing the pressure of a GT45R pushing 50psi.

Instead of a tiny IHI pushing a whopping 11-12psi making ~250hp.

DaveEstey
DaveEstey Dork
3/21/12 4:04 p.m.

I never had problems with an adjusted (with a hammer) recirc on my 330+hp Legacy GT.

Knurled
Knurled GRM+ Memberand Dork
3/21/12 5:08 p.m.
DaveEstey wrote: Recirculating BOV solves the noise problem.

Throwing the device into the dumpster also solves the problem.

(Yes, I hate those devices. Why throw away all the boost you just spent all that time trying to make? Neither of my turbocars had these things on them, and the world somehow failed to end. Both had IHI turbos on them, too)

Wait. Evan is in my class. I mean, uh, you want the biggest and riciest sounding blowoff valve ever!

EvanB
EvanB GRM+ Memberand UltraDork
3/21/12 6:10 p.m.

Biggest and most ricer sounding? I have that covered.

J308
J308 Reader
3/22/12 11:13 a.m.
EvanB wrote: Biggest and most ricer sounding? I have that covered.

Shenanigans. I guarantee I have you beat!

EvanB
EvanB GRM+ Memberand UltraDork
3/22/12 11:15 a.m.

Oh yea? I challenge you to a blow-off.

That didn't sound right...

EvanB
EvanB GRM+ Memberand UltraDork
3/22/12 11:16 a.m.

BTW: I have a HKS SSQV.

92CelicaHalfTrac
92CelicaHalfTrac MegaDork
3/22/12 11:18 a.m.
Knurled wrote:
DaveEstey wrote: Recirculating BOV solves the noise problem.
Throwing the device into the dumpster also solves the problem. (Yes, I hate those devices. Why throw away all the boost you just spent all that time trying to make? Neither of my turbocars had these things on them, and the world somehow failed to end. Both had IHI turbos on them, too) Wait. Evan is in my class. I mean, uh, you want the biggest and riciest sounding blowoff valve ever!

It's somewhat common in japan to just let compressor surge do its thing as well. I'm thinking about trying it on the MX6 since the turbo is on its way out anyways.

Keith
Keith GRM+ Memberand MegaDork
3/22/12 11:47 a.m.

Keep in mind that a bypass or a blowoff will help keep the turbo spinning. So instead of saying that you're "throwing away" boost, look at it as decreased spin-up time for the turbo when you get back on the gas after a shift. Better performance, not worse.

92CelicaHalfTrac
92CelicaHalfTrac MegaDork
3/22/12 11:51 a.m.

Clearly the answer is anti-lag setup.

Keith
Keith GRM+ Memberand MegaDork
3/22/12 12:04 p.m.

yes, that's obviously a much better answer.

Knurled
Knurled GRM+ Memberand Dork
3/22/12 12:10 p.m.
Keith wrote: Keep in mind that a bypass or a blowoff will help keep the turbo spinning. So instead of saying that you're "throwing away" boost, look at it as decreased spin-up time for the turbo when you get back on the gas after a shift. Better performance, not worse.

Call it a solid "it depends". I didn't notice that at all on my Subaru, nor on my Isuzu. No matter what, the turbo IS going to spin down when the engine is no longer providing exhaust gases, but a recirc valve just vents all the stored boost while not having one keeps it in the pipe for longer.

One thing people note is that the boost after a shift is instant if you eliminate the recirc valve. It's only there for noise reasons. My cars weren't that bad for noise, but my friend's XR4Ti has compressor surge that is loud and clear on my friend's cell phone.

(And if you wanna talk about a sloooow turbocar. 8psi boost just to gently merge with traffic? No thanks)

Keith
Keith GRM+ Memberand MegaDork
3/22/12 12:31 p.m.

When the reflected boost spike hits the compressor going the other way, it slows the wheel considerably. More than just a coast down due to a lack of exhaust gas. And there still is quite a volume of exhaust gas coming out of the engine on a shift, the engine doesn't stop spinning.

EvanB
EvanB GRM+ Memberand UltraDork
3/22/12 1:41 p.m.

Cleaned it up a bit today.

Winston
Winston Reader
3/22/12 3:31 p.m.

Pretty! Almost too pretty for a RallyX car...

92CelicaHalfTrac
92CelicaHalfTrac MegaDork
3/22/12 3:32 p.m.

Where'd you get the meatballs? I want a set!

Keith
Keith GRM+ Memberand MegaDork
3/22/12 3:36 p.m.

Meatballs are easy. Tape and a spray bomb! Or, a piece of vinyl and a compass.

I agree, that's too pretty for RallyX.

EvanB
EvanB GRM+ Memberand UltraDork
3/22/12 4:36 p.m.

I had a guy in Columbus make up the meatballs on his vinyl cutter.

It's not really that pretty in person, there are quite a few dents, the back end is tweaked a bit (maybe just the trunk lid) and evidence of areas resprayed. Although with some body work and a repaint it certainly would be too nice to rallyx.

EvanB
EvanB GRM+ Memberand UberDork
5/29/12 3:14 p.m.

Not many updates lately. I have done two events since I got the new engine in. There have been some overheating problems so I ordered a new aluminum radiator. Here is a picture from the first event.

And a teaser of what is coming up.

EvanB
EvanB GRM+ Memberand UberDork
5/29/12 6:26 p.m.

Here is some video from the morning runs on Saturday. I am on the left and Chris is on the right.

http://www.youtube.com/watch?v=QS5XLRuM0lc

Knurled
Knurled GRM+ Memberand Dork
5/30/12 10:57 p.m.

"So, if this is the Answer to Everything, why isn't it number 42?"

EvanB
EvanB GRM+ Memberand UberDork
5/30/12 11:43 p.m.

Just wait till the next rallycross.

EvanB
EvanB GRM+ Memberand UberDork
5/30/12 11:45 p.m.

That looks like a caption contest.

"This thing sucks, why is it so much slower than a Rx-7?"

Knurled
Knurled GRM+ Memberand Dork
5/30/12 11:52 p.m.

Needs more metal in the CD player region

Works for me, anyway.

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