Turbo question?
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
Keep in mind, the van turbo still has the compressor map of a stock turbo.. All you're doing is changing the exhaust side, so it is freer flowing. Sure it can support 400+hp, but it does not even come CLOSE to flowing the air needed to clean up 400+ hp worth of fuel! If you don't believe me, i'll post Jeremy's 434hp run. His smoke in the beginning of the run is almost as thick as once the turbo has spooled! Of course he was running B codes, i wouldnt run anything higher than stage one or two's with a stock compressor'ed turbo.
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
I agree with you on the Van Turbo. But for my setup (especially with towing) it cleans up very well at the 350 hp level, and for about $1,000 less - I'll take it over the extra 10-20 HP.
Postmaster
Joined: Jul 2006
Posts: 4,993
Likes: 2
From: Bend, OR
Here is a great Video of a 38r... Great!
nice video if a GTP-38r
TN BB did just fine on the dyno at 467hp... Buntting is coming out with a 1.15 housing for it as well. at 40#'s boost the TN BB 1.00 is at 46-48# drive pressure...
nice video if a GTP-38r
TN BB did just fine on the dyno at 467hp... Buntting is coming out with a 1.15 housing for it as well. at 40#'s boost the TN BB 1.00 is at 46-48# drive pressure...
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
Yeah Boggerr said the Garrett is better for all out performance, but can surge. I have yet to hear of a TN surging, like a stock turbo with an ATS housing surging... I'm keeping my BB TN, i love it.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Hmm, stock turbo with ATS housing will not surge but GTP38R will eh? Looks like the ATS is a take-off of the GTP38R housing and uses a *******ized intake tube to match. Identical minus the name. Stock turbo is a Garrett. Wonder what is going on here?
Come to think of it, the compressor housing on a TN looks eerily similar to the Garrett. Looks like a copy to me. Wonder which came first? Maybe I should install the 1.0 housing to see what happens because I have zero surge with my 1.15 unit.
I don't care enough to do it. I have no reason to at present. Too many other projects.
Come to think of it, the compressor housing on a TN looks eerily similar to the Garrett. Looks like a copy to me. Wonder which came first? Maybe I should install the 1.0 housing to see what happens because I have zero surge with my 1.15 unit.
I don't care enough to do it. I have no reason to at present. Too many other projects.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
I am not sure what a lot of smoke means besides unburned fuel. I cannot say whether that is harmful or not but it certainly means there is fuel to be burned. It seems that means unrealized HP.
Elder User
Joined: May 2008
Posts: 860
Likes: 2
From: Liberty Lake, WA
Garrett is much better! Has a proven track record, and flows more air! Its been used in a number of 500HP PSD's
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Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
For now Rich. It should be serving you well. If you wanted to go any further, big oil etc, the van turbo is going to be taxed. Jeremy made over 400 with those B codes, but he was shopping a turbo when it let go. He was making a lot of smoke. Myself, I had about the same or somewhat less smoke than last year and about 90 more HP.
I am not sure what a lot of smoke means besides unburned fuel. I cannot say whether that is harmful or not but it certainly means there is fuel to be burned. It seems that means unrealized HP.
I am not sure what a lot of smoke means besides unburned fuel. I cannot say whether that is harmful or not but it certainly means there is fuel to be burned. It seems that means unrealized HP.
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