Turbo Questions
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Tuned
Joined: Sep 2008
Posts: 319
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From: Verona NY
Turbo Questions
I have noticed my turbo making funny noises at shift points, especially 4th. It sounds like the bearing wobbling, and a whoosh. I don't know if it's surge or a bad turbo. I've seen several remedies for surge, new housing, wicked wheel, and the van turbo (am I correct in assuming that the van is simply a turbo out of an Econoline?) Do they do more than take care of surge?
I've noticed a lot of talk about the GTP38R, I've read from others that mpgs go down somewhat with the GTP38R, and I seem to recall someone saying lowend tends to suffer as well. I like more power (does Binford make a turbo?) Sorry, a little Tim the tool man coming out. Anyway, I like speed, but I need pulling power.
What do you think is wrong w/ my turbo, and what do you all recommend? Thanks.
Can't wait for RiffRaff East
I've noticed a lot of talk about the GTP38R, I've read from others that mpgs go down somewhat with the GTP38R, and I seem to recall someone saying lowend tends to suffer as well. I like more power (does Binford make a turbo?) Sorry, a little Tim the tool man coming out. Anyway, I like speed, but I need pulling power.
What do you think is wrong w/ my turbo, and what do you all recommend? Thanks.
Can't wait for RiffRaff East
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
I've noticed a lot of talk about the GTP38R, I've read from others that mpgs go down somewhat with the GTP38R, and I seem to recall someone saying lowend tends to suffer as well. I like more power (does Binford make a turbo?) Sorry, a little Tim the tool man coming out. Anyway, I like speed, but I need pulling power.
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Tuned
Joined: Sep 2008
Posts: 319
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From: Verona NY
I have switched to a 6637 recently, as well as a DP.
But the noise seems more than just the whoosh, and it continues until I let off the throttle.
But the noise seems more than just the whoosh, and it continues until I let off the throttle.
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Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
You may be getting surge. I would get it bad with the stock turbo and the DP. You may want to get a new housing or a WW.
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Joined: Feb 2007
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From: Williamston, MI
I get the same noise with my 6637 installed. From everything I've read here it is not surge in my case. Boost gauge shows constant pressure. It sounds like a massive amount of air being sucked through the filter.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Does it happen when your trans shifts? When you go WOT then let off the pedal? If it does this, that is the nature of the beast. The excess boost has to go somewhere once the RPM goes down, so it blows back out the intake and filter.
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