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Another Top Mount Setup

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Old 01-12-2011, 05:20 PM
  #126  
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Originally Posted by olddragger
I have to ask a dumb question. What is changed in
Nothing. Stock motor.
Giant (relatively) turbine.

Originally Posted by redlined
Wow. Amazing. So it seems the engine isn't a restriction up to 400 whp.
We've always known this. Search my posts.

Originally Posted by redlined
Funny that most have been running smaller turbos which is what has been the restriction to power output.
No. Smallish turbines.
No such restriction needed with a top-mount.

The manifold is really the key.
Last edited by MazdaManiac; 01-12-2011 at 05:28 PM.
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Old 01-12-2011, 05:26 PM
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Ahh, yes. I had forgotten about the manifold restrictions.
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Old 01-12-2011, 05:28 PM
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Awesome work Jeff and Turblown!
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Old 01-12-2011, 05:34 PM
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Are we going to see a 400whp+ dyno from a low mount any time soon ?
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Old 01-12-2011, 07:35 PM
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really neat, still wondering about this manifold, I think most of this is thanks to the turbo
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Old 01-12-2011, 08:16 PM
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well double damn
sure could be some interesting E85 cars out there--hehehe.
OD
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Old 01-12-2011, 08:25 PM
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Originally Posted by Brettus
Are we going to see a 400whp+ dyno from a low mount any time soon ?
Yep.

Originally Posted by olddragger
well double damn
sure could be some interesting E85 cars out there--hehehe.
OD
Double yep.
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Old 01-12-2011, 10:27 PM
  #133  
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AUX port closed boost/afr

Boost looks to be peak around 11.8 or so...
Attached Thumbnails Another Top Mount Setup-finalpsiafr.jpg  
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Old 01-12-2011, 11:07 PM
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^ Yeah, that is how it was reading on the dyno.

I've learned that wideband readings are, at best, a very general guideline.
The AFRs at the other shop looked pretty similar, but the engine responded (and sounded) quite different at the "same" AFR.
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Old 01-13-2011, 03:15 PM
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Originally Posted by NgoRX8
Awesome work Jeff and Turblown!
Thank you! We are really trying to push the envelope and we are working on some other things that will hopefully really help out.
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Old 01-13-2011, 03:56 PM
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Originally Posted by MazdaManiac
Incorrect.

The SSV is operating in its normal manner (opening along with the secondaries around 3800 RPM).
Is that just a typo/mistake?
The SSV are the secondaries right? So you mean "opening along with the primaries..."?

Great job BTW!
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Old 01-13-2011, 05:11 PM
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Originally Posted by 1Revvin7
AUX port closed boost/afr

Boost looks to be peak around 11.8 or so...
Boost looks like 12.6-12.7 to me - or am I reading it wrong ?

Have you got the chart for aux ports closed as well ? Also , was anything else done between the open/closed runs IE was wastegate tweaked at all ?
Last edited by Brettus; 01-13-2011 at 05:14 PM.
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Old 01-13-2011, 05:20 PM
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Originally Posted by Brettus
Boost looks like 12.6-12.7 to me - or am I reading it wrong ?

Have you got the chart for aux ports closed as well ? Also , was anything else done between the open/closed runs IE was wastegate tweaked at all ?
you mean aux ports open. that graph is closed. everyone is having a typo in this thread. lol
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Old 01-13-2011, 05:32 PM
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/\ haha - yeah . Wot you said .
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Old 01-13-2011, 06:24 PM
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Scale isn't the same as afr, don't know it didn't show on the other side..
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Old 01-13-2011, 06:54 PM
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Originally Posted by MazdaManiac
I've learned that wideband readings are, at best, a very general guideline.
The AFRs at the other shop looked pretty similar, but the engine responded (and sounded) quite different at the "same" AFR.
So what was done to resolve the missfire issue - just a fuel pressure increase ?
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Old 01-13-2011, 06:59 PM
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Is Turblown and 1Revvin7 different people? Or same person with different userids?
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Old 01-13-2011, 07:59 PM
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Originally Posted by Brettus
So what was done to resolve the missfire issue - just a fuel pressure increase ?
No. Leaner AFR.

Originally Posted by rg1977
Is that just a typo/mistake?
The SSV are the secondaries right? So you mean "opening along with the primaries..."?
No. The SSV is the secondary shutter valve.
The "secondaries" are the secondary fuel injectors which are locked down-stream of the SSV.

Originally Posted by Brettus
was anything else done between the open/closed runs IE was wastegate tweaked at all ?
No. Back-to-back runs.
Originally Posted by pdxhak
Is Turblown and 1Revvin7 different people? Or same person with different userids?
Two different people from the same organization.
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Old 01-13-2011, 08:12 PM
  #144  
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Originally Posted by MazdaManiac
Two different people from the same organization.
I'm so confused.
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Old 01-13-2011, 10:13 PM
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Originally Posted by MazdaManiac
No. Leaner AFR.
No. The SSV is the secondary shutter valve.
The "secondaries" are the secondary fuel injectors which are locked down-stream of the SSV.
Now THAT has got to be a typo!

j/k Thx for clarifying, it ALL maks sense now...
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Old 01-14-2011, 07:38 AM
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The car made its 800 mile road trip home.
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Old 01-14-2011, 09:54 AM
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Originally Posted by rg1977
Now THAT has got to be a typo!
Nah. They are literally locked to the opening of the SSV.

Originally Posted by Turblown
The car made its 800 mile road trip home.
That's one small step for a rotary. One giant leap for rotary-kind.
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Old 01-14-2011, 10:13 AM
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do yall mean on some of the runs the apv's were locked open all the time?
OD
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Old 01-14-2011, 10:20 AM
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Yes.

The car lost power everywhere until 6500 RPM. Then, it took off like a rocket.
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Old 01-14-2011, 11:51 AM
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Originally Posted by MazdaManiac
That's one small step for a rotary. One giant leap for rotary-kind.
Where will you put the flag ?
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