Does your turbo spin at idle?
#22
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When I first installed my MP70, it didn't spin at idle either. After owning 6-7 turbo cars, I figured this MP turbo was crap. I even gave it a couple good spins, but it would be spinning so slow you could count the blades. However, after a few days and some miles on it, boosting from time to time, it spins much better now.
I have since ran over 15psi on it and around 10k miles, it spins better now then ever. Good luck though.
Worth noting, my dual BB turbo's I've owned spinned forever after shutdown (1-2 minutes), while my journal bearing turbos make it a good 15-30 seconds.
Also, nice truck black04!
I have since ran over 15psi on it and around 10k miles, it spins better now then ever. Good luck though.
Worth noting, my dual BB turbo's I've owned spinned forever after shutdown (1-2 minutes), while my journal bearing turbos make it a good 15-30 seconds.
Also, nice truck black04!
#23
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I wouldn't worry about it unless your turbo is making noise or doesn't make boost. My T76 BB didn't spin at idle when it was on the sts kit but it ran great. When I moved it up front it would spin some times and then some times it wouldn't. My mp70 spins like crazy at idle when I have it on though. Forced Inductions just put a new exhaust seal in my t76 and said that there was nothing else wrong with it.
#24
Well i drove it around and it was making boost so it seems to be working well. I'm still driving it with the whipple tune so i havent gone wot but i got 3 - 4 psi in.
Another question i have is about compresser surge. It seems that if i go to 1psi or more and let off i get a flutter sound. Is that normal? I have a tial bov but its still fluttering.
Another question i have is about compresser surge. It seems that if i go to 1psi or more and let off i get a flutter sound. Is that normal? I have a tial bov but its still fluttering.
#27
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To be honest, I don't think we could ever hurt a turbo at the boost levels we run. I think you would have be up in the 30-60+ psi range and surge it HARD to actual damage anything. Under 20psi and I think it would be dang hard to actually hurt anything. A few flutters is pretty much the norm on these type of setups unless you put a way soft spring in the BOV. The it would be open all the time unless your in boost and that's not so good if you don't have a filter on it.
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Rick
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It seems like a majority it turbo kits run the standard Tial BOV. Are those kits letting unfiltered air into their engines on a regular basis?
Sorry OP for getting off-topic...
RB
Last edited by Rick_Vor; 08-09-2010 at 10:14 PM.