Chiburbian's 01' Lots of potential, no follow-through build - Page 15 - Miata Turbo Forum -Boost cars, acquire cats.

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Old 03-04-2015, 02:18 AM   #281
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Hopefully no more leaks from the reroute buddy!
P.S. You'll have to show off your ducting in person. I will need tips.
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Old 03-04-2015, 10:59 AM   #282
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Thanks. Ducting isn't too impressive as of this moment though.

EDIT: Forgot to add - it appears that I am getting some oil making it's way past my compressor side oil seals. It's a ball bearing turbo and I have run it with the same setup since I first installed it over a year and a half ago. Could I have damaged the turbo if I was doing this the whole time? If I get a smaller restrictor and that fixes my problem will my turbo be ok you think?

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Old 03-06-2015, 10:05 AM   #283
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Latest progress... Car is on it's own wheels and ride height set to 949's "street" settings. Needs an alignment before I can drive it more than to the alignment shop.

Also I need to fit the charge pipes and turbo intake before I put the front end on the car.





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Old 03-06-2015, 10:17 AM   #284
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looks 200% better with those wheels/tires
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Old 03-06-2015, 10:22 AM   #285
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Interesting side note - the car behind it is a STI swapped Forester. I am looking forward to seeing the Forester on the road or at least out of the shop so I can share some good pics. I can't recall the actual HP numbers but I know its well into the 400's on pump gas, higher on e85.

Also, a VERY short video of my first revs after getting it buttoned up. No BOV or charge piping installed in this video.
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Old 03-06-2015, 11:52 AM   #286
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Talk about getting down to the wire! 1 more week and it'll be tuned!
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Old 03-06-2015, 12:01 PM   #287
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I am actually a bit worried... I still have to break in the clutch, and my alignment guy isn't available until Sunday. I may go to a different person if the car is done Saturday morning and I can get it in. I really want to get this thing on the road and fine tuned by mid-day Saturday.
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Old 03-06-2015, 01:28 PM   #288
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Quote:
Originally Posted by Chiburbian View Post
I am actually a bit worried... I still have to break in the clutch, and my alignment guy isn't available until Sunday. I may go to a different person if the car is done Saturday morning and I can get it in. I really want to get this thing on the road and fine tuned by mid-day Saturday.
I'm sure you'll get it done! You can break the clutch in on the drive here. Or are you towing it?
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Old 03-06-2015, 01:39 PM   #289
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I plan on driving it. The problem is that I want to have as few issues as possible when Scott starts working on it. I have changed SO much during the winter that I will have to retune my entire VE map and I'd like to have my boost control a bit more stable by then as well. In order to work in boost, I need to have clutch broken in.

EDIT - Also, one thing that I am seeing is oil exiting the turbo on the compressor side. I pulled the oil feed and checked and there is indeed a restrictor present. I have had this problem for quite some time but previously I had thought it had to do with oil coming from the valve cover vent which was plumbed into the intake pipe. The car has never blown any smoke. I recently relocated the oil drain to near where the mazdaspeed miatas have their drain.

Confused...

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Old 03-07-2015, 05:24 PM   #290
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Any more progress?
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Old 03-08-2015, 09:24 PM   #291
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Quote:
Originally Posted by btabor View Post
Any more progress?
YES.



I got the car put together yesterday and while I have a host of small problems I have to fix at some point, it is safely aligned and on the road.



I put about 250 miles on it yesterday night and today and am working on letting VE Analyze Live do it's thing. I did a pull in 5th gear on the last leg of my drive today to see how my new exhaust and setup does...


My target was 11psi as I still have lots to do. As I move forward I may raise it back up to 14psi or so.

I am pretty happy. Still lots of work to do.

Pending issues:
-Dash coolant gauge doesn't work.
-Oil leak from oil pan (hopefully I am wrong and it's just leaking around the dipstick)
-under tray doesn't work properly with new ducting
-new ducting is incomplete and my coolant temperatures are way too high for 40 degree ambient conditions. This is a FAIL thus far.
-boost control does well at limiting boost when approaching it from an extended pull but is unable to stop boost from getting out of hand in lower gears when it's happening more quickly. It is however doing a much better job at modulating boost under all conditions than before.
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Old 03-08-2015, 09:56 PM   #292
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Looks good man! My car leaks a little oil too. I think all Miatas do. Can you run both a manual and electronic boost controller in line?
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Old 03-08-2015, 10:12 PM   #293
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previously I was seeping oil from the turbo return. Now I am DRIPPING oil from somewhere. I am going to just deal with it until Friday but I am faced with a rather unpleasant situation. I may have to pull the motor out AGAIN or try and fix the leak by dropping the subframe, which would mean another alignment... lol.
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Old 03-09-2015, 12:36 PM   #294
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Old 03-09-2015, 12:51 PM   #295
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congrats man, so exciting to see it finally back on the road

just to clarify: you're planning on 14psi on a precision turbo on a stock vvt long block?
lol

Hope you have build plans

11psi by 3300rpm is wonderful
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Old 03-09-2015, 01:04 PM   #296
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I am keeping it at 11psi until Friday when we dyno tune. I want to get to 225lb/ft as quickly as possible and maintain that (or abouts) till redline. Whatever boost that takes, so be it.
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Old 03-09-2015, 01:21 PM   #297
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Oh I see. Well I'll be surprised if you don't hit that even with 11psi. The precision is really not a small turbo
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Old 03-09-2015, 01:26 PM   #298
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I look forward to seeing how it goes!
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Old 03-09-2015, 04:28 PM   #299
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Your boost control issues might get better as it gets warmer. I always run into issues tuning in 40 degree and below weather. Though it's supposed to be 60s next week so hear's hoping I can get the car out of the garage soon.

Progress looks good. You'll have to let me take it for a spin soon to compare contrast our setups.
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Old 03-09-2015, 05:22 PM   #300
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Quote:
Originally Posted by Chiburbian View Post
-boost control does well at limiting boost when approaching it from an extended pull but is unable to stop boost from getting out of hand in lower gears when it's happening more quickly. It is however doing a much better job at modulating boost under all conditions than before.
Let me know if you figure this out. Mine looks like a mountain range when I'm doing a 1-2-3-4 pull.
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