EPIC nuts/studs loosening thread (reposting stupid stuff without reading = warning)
#61
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Have y'all seen this?
ATP TURBO - The Premiere Provider of Turbocharging Components
Tack weld those 5-bolts in place, then attach it to the DP with a v-band clamp. Now if there was only a similar solution for the turbine inlet flange.
ATP TURBO - The Premiere Provider of Turbocharging Components
Tack weld those 5-bolts in place, then attach it to the DP with a v-band clamp. Now if there was only a similar solution for the turbine inlet flange.
#63
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Yeah I know about those, but they do not have integrated waste gates. There is not currently an available EWG solution for a S4 manifold that will not have boost creep. BEGI is building something but it is still in the prototype stage.
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Nope, no creep. I have not tried to run it below 13-14 psi, and not above 20 psi, but it holds fine. If I run it off of the EBC/wastegate it holds 14-15 psi. If I enable the WI and run it off of the MBC it holds 19-20. The waste gate is BEGI-style ported and I am using a BEGI separated gases down pipe.
I had some creep before due to the MBC/EBC hybrid setup, but once I properly adjusted the MBC the creep went away.
I had some creep before due to the MBC/EBC hybrid setup, but once I properly adjusted the MBC the creep went away.
#66
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loot at what i found quoted from Keith @ FM:
For the fastenerds: on the right is a factory turbo nut and stud from a Mazdaspeed Protege. On the left is some aftermarket A2 stainless stuff. Who can comment on the differences?
![](http://www.flyinmiata.com/images/misc_images/studly.jpg)
Guess who I'm calling tomorrow. I noticed that when I took my turbo nuts off, they no longer "pinched" and I could spin them off by hand. The factory exhaust hardware still grips.
I'm going to put those nuts on or the stage 8 with my space-shuttle / nuclear thread locker and pray to black jesus to send me an 8-Ball 40...and to keep my nuts snug.
turbo bolt trouble: Grassroots Motorsports forum: Grassroots Motorsports Magazine
For the fastenerds: on the right is a factory turbo nut and stud from a Mazdaspeed Protege. On the left is some aftermarket A2 stainless stuff. Who can comment on the differences?
![](http://www.flyinmiata.com/images/misc_images/studly.jpg)
Guess who I'm calling tomorrow. I noticed that when I took my turbo nuts off, they no longer "pinched" and I could spin them off by hand. The factory exhaust hardware still grips.
I'm going to put those nuts on or the stage 8 with my space-shuttle / nuclear thread locker and pray to black jesus to send me an 8-Ball 40...and to keep my nuts snug.
turbo bolt trouble: Grassroots Motorsports forum: Grassroots Motorsports Magazine
Last edited by hustler; 06-16-2009 at 12:39 AM.
#68
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has anyone considering a hard mount on the exhaust to the trans? I know it fails on the greddy kit, but I've discovered a lot of front/rear movement when the turbo parts are out. This is definitely a MAJOR binding stress on the turbo parts which aren't welded together and cast iron or studs don't like to flex.
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What about Nord-Lock washers? FM has some, and you can get any size you want from mcmaster. I just put some on based on another thread, so I don't know how they work yet.
I don't track, but the theory looks like they'd hold up...
I don't track, but the theory looks like they'd hold up...
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You know I just realized the Stage-8 bolts come with a socket head cap screw which is what I want... WIN
I think I will be getting some of these for the turbine inlet and outlet flanges. I am going to use bolts and skip the studs and nuts.
I think I will be getting some of these for the turbine inlet and outlet flanges. I am going to use bolts and skip the studs and nuts.
#74
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We're working on something that should be a good option. The proof-of-concept version is in place and seems to be good. I'm working on finalizing the design for production, and we'll get a few of these things put together. I'm going to ask the MT.net community to help us test them, so watch this space. Should be a few weeks, depending on how fast one of our suppliers can turn around the initial batch.
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We're working on something that should be a good option. The proof-of-concept version is in place and seems to be good. I'm working on finalizing the design for production, and we'll get a few of these things put together. I'm going to ask the MT.net community to help us test them, so watch this space. Should be a few weeks, depending on how fast one of our suppliers can turn around the initial batch.
I just talked to you on the phone and ordered the stage-8 stuffs. Should I wait on putting my stuff together this weekend? I only want to do this one more time because it makes me cry. By a few weeks do you mean 3-weeks, 12-weeks, or are you just as unsure as I am?
Thanks again for taking those measurements...I think the stage8 stuff will work.
Have you tested the concept on the track extensively?
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"Proof of concept" means "yes, we can do what we were hoping we could do". The concept is valid. Is it effective? I don't know yet. That's why we'll need the help of MT.net, to get a number of people with different configurations to test it for us. We don't actually have access to a really punishing track here anyhow.
I am being deliberately vague about the details, as I'm hoping to avoid a very detailed interrogation about our potential solution. Once we're a bit further along and we're ready to look for some test pilots, I'll obviously offer quite a bit more more. Basically, we're working on something, and I think it holds promise.
Timeframe? I never put timeframes on development. But it's a relatively simple design, so we should be able to get the test parts put together fairly soon.
I am being deliberately vague about the details, as I'm hoping to avoid a very detailed interrogation about our potential solution. Once we're a bit further along and we're ready to look for some test pilots, I'll obviously offer quite a bit more more. Basically, we're working on something, and I think it holds promise.
Timeframe? I never put timeframes on development. But it's a relatively simple design, so we should be able to get the test parts put together fairly soon.