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Old 07-06-2012, 06:40 AM   #31
sporadic
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Quote:
Originally Posted by Djzx3 View Post
Did you get ARP studs for the header?
What's the size? 8 X 1.25?
I've always run stock studs with no problems.

Quote:
Originally Posted by K26 View Post
Got any video of this man?
Not yet. 7.2psi isn't overly exciting anyway. I'll get some vids when I turn it up to 10psi or so and also try to get back to the track this fall.
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Old 07-06-2012, 02:20 PM   #32
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This must be a very low millage motor then, cause your header bolts aren't as rusted as mine.
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Old 07-06-2012, 02:25 PM   #33
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Quote:
Originally Posted by Djzx3 View Post
This must be a very low millage motor then, cause your header bolts aren't as rusted as mine.
The whole car only has 45K miles on it. This motor has probably 15K on it. It's garage kept (except for 8 months in PA). I also use high-temp anti-seize fairly liberally on bolts I know will rust. Messy stuff but it's a lifesaver.
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Old 07-06-2012, 04:10 PM   #34
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Looks great im glad everything went so smooth.
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Old 07-06-2012, 09:44 PM   #35
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put the wg reference to the IM and you will raise your boost up
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Old 07-06-2012, 10:38 PM   #36
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Quote:
Originally Posted by Turbo Turtle View Post
put the wg reference to the IM and you will raise your boost up
That's part of my plan now. I'm going to get a vac block and use the large vac port on the manifold that used to connect to the evap solenoid.
I purchased a TurboSmart dual stage mechanical boost controller so I can work my way up to 10-12psi.

I updated the overly rich 12psi IHI tune last night and loaded up the leaner tune today. The tun is basically dead on now where I want it (11.0-ish AF) in WOT. The only timing the knock sensor pulled was actually between shifts. I think that is due to needing to reset the IAC as the RPMs are hanging a bit.
At 7psi the log is showing 790 MAF counts. The max MAF counts at 12psi with the IHI was 880, so the GT2871r certainly seems to be flowing more air.

The spool time is great, and the respool time is even better. I'd say the GT is basically the same spool time as the IHI. I'm not sure how since the IHI is such a smaller AR turbine, but I'm not complaining.
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Old 07-07-2012, 10:35 AM   #37
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Its just my opinion but I would shoot for closer to 10.8 AF at wot , there is no loss of power but a good bit more safety as you get running it hard

Tom
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Old 07-11-2012, 08:57 AM   #38
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This is the boost controller I went with:


I bought it open-box from ebay, so I wanted to make certain it wasn't busted up so I took it apart. This is what is inside. This one is indeed new.








For those wondering how this works, it is a bleed-off type boost controller. That means it will bleed off a preset amount of air going to the wastegate.
This controller has two stages of bleed-off, controlled by a switch. The only electronic part in this system is the solenoid that opens the path to the second bleed dial. It appears it would work fine as a single-stage without any 12v signal.

The dials are reverse threaded. Turning counter-clockwise closes the bleeder valves. Turning clockwise opens the bleeder valves to increase boost.

I have not installed this yet. I ordered a vacuum block and it won't be here until later this week. I'm going to clean up some vac/boost lines so my boost gauge, boost controller and bov all get the signal from the same vac block.
I'm going backpacking/flyfishing for a few days next week, so don't expect any updates until after.
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Old 07-11-2012, 06:21 PM   #39
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Congrats! Glad to see everything going well!
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Old 07-12-2012, 12:57 PM   #40
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I have the vac block (pics later) and now need vac/boost line. Any recommendations? I believe 6mm (.25in) is what I need.
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