The Official Overboosted Overlords Club
1st RX8 BNR Turbo Owner..
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Joined: Feb 2008
Posts: 454
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From: San Antonio, Texas
Thanks guys. I'm hopeful it will make some form of a difference. I'm trying not to get my hopes up so I will not be disappointed. I will data log regardless. If the adjustments are fairly positive then I will put the car back on the dyno just to see the numbers before MM does his final tune on 12/17 with Surgeline.
I will take a look one day when I take my turbo kit off so that I can sell it. It is definitely odd that I am on the stock Greddy actuator and am able to hold the boost. I will say that Bryan did modify my wastegate, so its not the prettiest actuator out there (it had been cut open, etc.) It had some work done to it, now as to what he did I do not know. But I was very pleased with the performance of it.
1st RX8 BNR Turbo Owner..
iTrader: (1)
Joined: Feb 2008
Posts: 454
Likes: 2
From: San Antonio, Texas
Doubt it. Without the boost controller, I was right at 6-7 psi on just the actuator.
Last edited by J.Cab; Dec 6, 2010 at 04:41 PM.
1st RX8 BNR Turbo Owner..
iTrader: (1)
Joined: Feb 2008
Posts: 454
Likes: 2
From: San Antonio, Texas
I was going to post a picture of the actuator when I unistalled the turbo kit, but I will respect Bryan in this matter.
Last edited by J.Cab; Dec 6, 2010 at 04:41 PM.
https://www.rx8club.com/showpost.php...6&postcount=29
I was going to post a picture of the wastegate when I unistalled the turbo kit, but I will respect Bryan in this matter.
I was going to post a picture of the wastegate when I unistalled the turbo kit, but I will respect Bryan in this matter.
1st RX8 BNR Turbo Owner..
iTrader: (1)
Joined: Feb 2008
Posts: 454
Likes: 2
From: San Antonio, Texas
That turbo has still not been fitted so don't know the outcome but I will say that my experimentation with a helper spring (attached to the side of the actuator)achieved similar results to what you got .
The plot thickens! LOL
I could imagine a bigger spring being a good way to solve this (to a degree). Still allows for complete movement, but at the same time raises cracking pressure.
I could imagine a bigger spring being a good way to solve this (to a degree). Still allows for complete movement, but at the same time raises cracking pressure.
The adjusted actuator is holding boost. We did a few runs in 2nd and 3rd gear to 8k and 8.5k and it was holding. We think we saw 12-13 psi at 8k and 8.5k dropped just a tad under 10 psi. The boost controller turned off as well. Next up is some data logging 
beeter get that beast back on the dyno then
The shop said the same thing. They wanted to tune the BC but I requested they leave it alone until Jeff is done with his tune. We will probably back it down and then use the BC.
don't forget what we talked about . Just getting that boost is no garantee you are making the power you should be making .
Unless it feels like godzilla already ? In which case ignore everything i've said LOL
Unless it feels like godzilla already ? In which case ignore everything i've said LOL
The car is definitely pulling harder. Boost comes on fast and seems to pull strong to 8k. Again I do not want to reply on feel or the gauges. I will log data and post it up so we can all see what is happening
if you want to test it against other cars and see where you are at before you go to the dyno check out this thread :
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/dudelogger-internet-racing-challenge-173494/
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/dudelogger-internet-racing-challenge-173494/
glad to hear its holding, pdxhak. definitely get some logs of your maf readings. if you have any of the logs left on the ap from when jeff dynotuned it, it'd be a good comparison.
The alternator went and the harness melted a bit on the way to work. Hopefully this did not cause any issues with the motor. The car had to be towed home because other systems in the car would not function.
