Chapter GMW | E30 LS1 (starting on post #1427)
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Snap hooked it up with his smoke tester and my system looks to be good with exception on my turbine housing. That is leaking very badly. I have a video of it on instagram @drleadfoot
@DrLeadFoot
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O-ring bad I assume?
The turbo has 2100 miles on it. I hope it isn't going to blow them out that fast. High temp RTV sealant? Some guys have done this with good results from a brief google search.
@DrLeadFoot
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glad to see you found/confirmed your leak. you must have been burning some low-grade leaves otherwise you wouldnt have needed the water spritzer.
You should see my garage. There are too many fire hazards to whip up a bonfire. I tried but I don't think I have any leaks except for the turbo cold side. (Video on instagram. Here soon.) Once my silicone dries up tomorrow I'll smoke the turbo side and see is she puff. #ifshesmokesshepokes
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@DrLeadFoot
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You should see my garage. There are too many fire hazards to whip up a bonfire. I tried but I don't think I have any leaks except for the turbo cold side.
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Todd, TCD, came by the garage the other day and put my mind to ease about the leak. Everything is a-ok!
Now do I boost it up?!? What to do...what to do... If I do change the spring I'll out in a 20lbs one in there.
@DrLeadFoot
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check the compressor map. I know absolutely nothing about turbos but, check the compressor map.
I think we are in the same boat.
Here is the map for my turbo. This is a foreign language for me. HELP!
@DrLeadFoot
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Looks like 2 Bar (29psi) would be my optimum boost for the turbo? That's 14psi more than I'm at now.
Oh god if this is right this will be crazy!!
@DrLeadFoot
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I found this on you tube and this guy states you should consult the compressor map when choosing a turbo for you car. Anyway, I watched it and this guy knows what he is talking about.
http://www.youtube.com/watch?v=0Lv4yjiuJSU
Hope this helps
Mike
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I found this on you tube and this guy states you should consult the compressor map when choosing a turbo for you car. Anyway, I watched it and this guy knows what he is talking about.
http://www.youtube.com/watch?v=0Lv4yjiuJSU
Hope this helps
Mike
That video was a great help. Todd, TCD, picked out the perfect turbo for what I wanted to do with the car it looks like! (I never doubted him!)
I'm thinking start with a 20-24psi spring in the wastegate and see how that works with the setup.
I emailed TRM to talk to them about fine tuning the tune. I would like to get it dyno'd at the high boost to get the air/fuel ratios documented and have them take it from there.
@DrLeadFoot
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This is the type of attention I want to get with my dirty.
@DrLeadFoot
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On compressor maps, the y-axis is the pressure ratio which is (intended boost pressure + 14.7psi)/14.7psi. so a pressure ratio of 2 equates to ~15psi boost pressure and a pressure ratio of 3 would be ~30psi etc.
On the x-axis, the target horsepower can be approximated by multiplying the flowrate in lb/min by 10. so 40lb/min being about 400whp. You want to land in the middle of the highest efficiency island.
TCD or anyone that isnt a total noob with turbos, please correct me and expound, I am here to learn.
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On compressor maps, the y-axis is the pressure ratio which is (intended boost pressure + 14.7psi)/14.7psi. so a pressure ratio of 2 equates to ~15psi boost pressure and a pressure ratio of 3 would be ~30psi etc.
On the x-axis, the target horsepower can be approximated by multiplying the flowrate in lb/min by 10. so 40lb/min being about 400whp. You want to land in the middle of the highest efficiency island.
TCD or anyone that isnt a total noob with turbos, please correct me and expound, I am here to learn.
I was not calculating my pressure ratio correctly. 20psi would put me at 2.3 PR and that puts me right in the honey hole for the turbo! Well, maybe I guess.
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@DrLeadFoot
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Under the blankets trying to stay warm.
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@DrLeadFoot
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Just got these little guys for the trans. mounts. Now to order up some motivation.
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@DrLeadFoot
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