turbo reliability on track
10-01-2010, 12:51 AM
#22
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So, how do we find these records?
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10-01-2010, 01:39 AM
#24
I know vaguely of few Cali track SM record. I might be off by 1/2 second here.
WSIR - low 1:35 (or high 1:34s)
BW #13, high 2:04s
MRLS - ~1:45
Cali speedway - not too sure on this one, but I believe it is 2:02s.
I think Dean has the record for Infineon. can't remember off top of my head.
I have no idea of Thunderhill. but I am sure if you look at winter's SCCA lap time with mylaps.com, fastest time probably or is very close to lap record.
snowboarder - I did mistaken you for sean.
I am very happy that Sav has taken turbo Miata to a new reliability level. no one will make fun of turbo track Miata any more.
WSIR - low 1:35 (or high 1:34s)
BW #13, high 2:04s
MRLS - ~1:45
Cali speedway - not too sure on this one, but I believe it is 2:02s.
I think Dean has the record for Infineon. can't remember off top of my head.
I have no idea of Thunderhill. but I am sure if you look at winter's SCCA lap time with mylaps.com, fastest time probably or is very close to lap record.
snowboarder - I did mistaken you for sean.
I am very happy that Sav has taken turbo Miata to a new reliability level. no one will make fun of turbo track Miata any more.
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10-01-2010, 08:50 AM
#25
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I am very happy that Sav has taken turbo Miata to a new reliability level. no one will make fun of turbo track Miata any more.[/QUOTE]
Ive never had a problem with being made fun of, once on the track. You just have to expect the ignorant GT3 or Z06 owner to scoff at you as they walk by in the paddock before the day starts. And I am crappy driver, I don't run much faster than those times you just posted up, defiantly not 10 sec faster but once you get out there and run I see nothing but surprise from everyone else.
Ive never had a problem with being made fun of, once on the track. You just have to expect the ignorant GT3 or Z06 owner to scoff at you as they walk by in the paddock before the day starts. And I am crappy driver, I don't run much faster than those times you just posted up, defiantly not 10 sec faster but once you get out there and run I see nothing but surprise from everyone else.
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10-01-2010, 11:00 AM
#26
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I wish I had video of my last session at NASA's Hallett event. It involved 4 people telling me to get out of the way or let everyone pass me on the grid comprised of Cobras, Vettes, a couple Vipers, and a couple CMC2 cars and I lapped every single car on the track.
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10-01-2010, 12:40 PM
#27
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Bob
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10-01-2010, 01:16 PM
#29
Hustler, stop running with slow Viper/Corvette/Cobra crowds.
this is from last Sunday event during Miata and S2K Challenge. at Buttonwillow #13 during 102F weather.
SM record is 2:05 (in winter). 20 drivers below that. say you are the fastest SM driver, you will be dead last in advanced group. mid pack in high intermediate group.
btw. Sav got FTD, and Trackdayhookey (Rotrex) just 1/10 sec behind him. they both make roughly 350whp.
this is from last Sunday event during Miata and S2K Challenge. at Buttonwillow #13 during 102F weather.
SM record is 2:05 (in winter). 20 drivers below that. say you are the fastest SM driver, you will be dead last in advanced group. mid pack in high intermediate group.
btw. Sav got FTD, and Trackdayhookey (Rotrex) just 1/10 sec behind him. they both make roughly 350whp.
Last edited by bellwilliam; 10-01-2010 at 01:40 PM.
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10-01-2010, 01:58 PM
#31
Inconel studs/v-bands are needed to solve the turbo falling off problem. You still need the "other stuff" to make sure the rest of the setup doesn't fail. For example, I have a turbo kit with inconel studs and my downpipe started self-destructing and leaving exhaust leaks after fixing the stud problem. I know I'm not the only one with this problem.
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10-01-2010, 03:48 PM
#32
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V-bands solve the issue of the turbine housing detaching itself from the mani and cutting your sessions short. Then Inconel/monel/nimonic/unicorn-horn bolts safety wired with inconel wire to keep the CHRA from detaching itself from the turbine housing and necessitating a $500+ new CHRA. If you have a standard T25 flange, then inconel turbine:mani studs. Those are the reported solutions for the major issues people have had in the past.
If you want to read more than that, there's a 60-something page thread about stud failures.
If you want to read more than that, there's a 60-something page thread about stud failures.
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10-01-2010, 09:46 PM
#33
Cpt. Slow
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Ok this is now a sticky, it is really good info.
Keep it on topic, and add whatever you think is necessary. Both for keeping the turbo attached to the manifold, and keeping the rest of the engine from exploding after you do that.
Keep it on topic, and add whatever you think is necessary. Both for keeping the turbo attached to the manifold, and keeping the rest of the engine from exploding after you do that.
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10-02-2010, 05:34 PM
#35
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Yeah, they typically only show up if you're doing laptimes at or under the Spec Miata record for the track. At some tracks it will show up earlier than that. I had no issues for the first couple of days with my car, and once I started picking up speed it was an epidemic. VagaXT had no issues until he put a set of NT-01s on his MSM, and suddenly he was going 2-3 laps before they'd back out.
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10-03-2010, 12:34 PM
#36
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FYI, my buddy Matt discovered that bad things happen in my car when your throttle cable melts...and you make that discovery at over 120mph in attempted threshold braking.
I pulled a dumb move and didn't tighten the fitting on the oil return so I had to take it off at the track. I then, had to take it off again immediately because I didn't position the return properly...and did this all in under 1-hour thanks to the V-bands.
I pulled a dumb move and didn't tighten the fitting on the oil return so I had to take it off at the track. I then, had to take it off again immediately because I didn't position the return properly...and did this all in under 1-hour thanks to the V-bands.
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10-05-2010, 01:30 PM
#39
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Yep, 94 Protege stock Bottom end craigslist and a, stock 99 Miata head. The 94 Protege came stock with 9.0:1 pistons.
The big thing is I am not getting lots of oil past the rings and dealing with wierd oily cumbustion mixes with it. it just keeps on going. The last time I ran this setup I broke a valve which made a big mess but I think that was a freak occurance combined with a 7400 rpm rev limit.
Bob
The big thing is I am not getting lots of oil past the rings and dealing with wierd oily cumbustion mixes with it. it just keeps on going. The last time I ran this setup I broke a valve which made a big mess but I think that was a freak occurance combined with a 7400 rpm rev limit.
Bob
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