VQ35HR Intake Manifold
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Joined: Mar 2013
Posts: 329
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From: chicago
Also apparent on the blue run, is that something changed at 4300rpm. The powerbands were identical, and the blue run was climbing in harmony with the red run, and then at 4300 something changed. The blue curve is not tangent at this point.
At this moment, something with the ignition timing or VTC pulled out.
Also shown on the blue run is a momentary drop in engine speed at about 3900rpm. I think its too brief to be clutch slip & catch... so a possible misfire or detonation event? Possibly what provoked the change at 4300 (knock retard)?.
Its hard to tell much from just one graph from each combo, especially without access to the ECU logs.
At this moment, something with the ignition timing or VTC pulled out.
Also shown on the blue run is a momentary drop in engine speed at about 3900rpm. I think its too brief to be clutch slip & catch... so a possible misfire or detonation event? Possibly what provoked the change at 4300 (knock retard)?.
Its hard to tell much from just one graph from each combo, especially without access to the ECU logs.
Your right on the money Mr. phunk2, full install took about 2 weeks to fabricate charge pipes and fuel line AN fittings vacuum line ect ect... Then this was the test. I mean 675whp at 18psi wasn't that bad, but I rather 780whp at 18psi... So off it went and on to the Dyno again it is! TOMORROW 
That is not A/F, its boost logging.
His tuner put on the GT-R manifold, and began tuning for it, and aborted the mission when he found that the car made much less power at the same boost.
This vehicle owner did not just bolt on the GT-R manifold and attempt to dyno it himself. His tuner had to do the full install which most likely required altering his intercooler pipes and fuel lines and vacuum line setup etc. I doubt at this point they were going to just do a half *** dyno pull and see what happens. This car was already making over 900rwhp originally, they were going to go for the gold.
His tuner put on the GT-R manifold, and began tuning for it, and aborted the mission when he found that the car made much less power at the same boost.
This vehicle owner did not just bolt on the GT-R manifold and attempt to dyno it himself. His tuner had to do the full install which most likely required altering his intercooler pipes and fuel lines and vacuum line setup etc. I doubt at this point they were going to just do a half *** dyno pull and see what happens. This car was already making over 900rwhp originally, they were going to go for the gold.
New results are in for F/I HR Stock internals!
Quoted from Bobby: "Our base was 5 psi at 401 with stock intake and with the GTR it made over 430 and about 40 plus on the torque side and about 1000 rpm sooner. This also means faster spool. We let it cooled down and did another pass at 9psi and made 522"
GTR plenum conversion by RJM Manufacturing on an 08 350Z turbo - YouTube
New results are in for F/I HR Stock internals!
Quoted from Bobby: "Our base was 5 psi at 401 with stock intake and with the GTR it made over 430 and about 40 plus on the torque side and about 1000 rpm sooner. This also means faster spool. We let it cooled down and did another pass at 9psi and made 522"
New results are in for F/I HR Stock internals!
Quoted from Bobby: "Our base was 5 psi at 401 with stock intake and with the GTR it made over 430 and about 40 plus on the torque side and about 1000 rpm sooner. This also means faster spool. We let it cooled down and did another pass at 9psi and made 522"
This is very good news.
Id like to know really high boost numbers , like 25 psi or so
Kaboom
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Joined: Sep 2015
Posts: 52
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From: berlin
I hope the GTR Alpha Expansion tank fits... 
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Joined: Jun 2013
Posts: 250
Likes: 13
From: Cincinnati, OH
GTR plenum conversion by RJM Manufacturing on an 08 350Z turbo - YouTube
New results are in for F/I HR Stock internals!
Quoted from Bobby: "Our base was 5 psi at 401 with stock intake and with the GTR it made over 430 and about 40 plus on the torque side and about 1000 rpm sooner. This also means faster spool. We let it cooled down and did another pass at 9psi and made 522"
New results are in for F/I HR Stock internals!
Quoted from Bobby: "Our base was 5 psi at 401 with stock intake and with the GTR it made over 430 and about 40 plus on the torque side and about 1000 rpm sooner. This also means faster spool. We let it cooled down and did another pass at 9psi and made 522"
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