FTN's T4/SXE Build/Conversion Thread
Thread Starter
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FTE Chapter Leader
Joined: Jan 2005
Posts: 13,096
Likes: 4,705
From: Henderson, NV
Lol! I pity the fool who doesn’t understand that one.
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,346
Likes: 5,941
From: Lake Hartwell, GA
Clever lad, we see what you did there...
Turbo maps can be confusing durpe to all of the squiggly lines and axis, but you learn to ignore the noise, their message is easily identified. A few FTE'rs spent some time educating me on turbo maps several years ago and I am grateful I took the time.
That is a good reference.
Turbo maps can be confusing durpe to all of the squiggly lines and axis, but you learn to ignore the noise, their message is easily identified. A few FTE'rs spent some time educating me on turbo maps several years ago and I am grateful I took the time.
This article will do a much better job than I can.
Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
‘’You could hear the other anchors laughing in the background...
I wonder if she was on a green screen and even realized what she drew…?
Laughing Gas
Joined: Nov 2013
Posts: 868
Likes: 1
From: SoCal
I might have missed something but IIRC, Turbonator doesn’t make a VGT house big enough for the 472 according to @countrycar who looked into it. Second, which side of the map do you think you’re crossing, surge or choke?
Thread Starter
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FTE Chapter Leader
Joined: Jan 2005
Posts: 13,096
Likes: 4,705
From: Henderson, NV
I might have missed something but IIRC, Turbonator doesn’t make a VGT house big enough for the 472 according to @countrycar who looked into it.
It depends which operating condition you are talking about. I was approaching choke at the top end when I was watching the MAT start to climb faster than boost was climbing during acceleration. Surge when I had to get off the skinny pedal suddenly and hit the brakes..
Laughing Gas
Joined: Nov 2013
Posts: 868
Likes: 1
From: SoCal
Ahh, there it is! I was assuming 472, not 372. Have you monitored the boost/drive pressure delta? From what I’ve seen, 238/100s at Max effort only saw 45 psi boost with EBP in the mid 60s on a 7.3 with a 366/74/1.0 . Again, sorry if I missed it.
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FTE Chapter Leader
Joined: Jan 2005
Posts: 13,096
Likes: 4,705
From: Henderson, NV
Hey no worries. It’s a lot of thread to get through. The Turbonator is capable of driving a turbo to achieve a 2:1 ratio. I programmed the controller to do that at lower boost levels and the logs show that it hit it. I dare not set that high a ratio approaching max boost. That is set at 50psi and it hit that too. Then stuff went *ping*. 
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Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
Been following this but not commenting lately.
First,sorry for your turbo accident and for your cat.
Second,i am pretty sure that failure has everything to do with Turbonator/how it was adjusted.
Remember,you only have the "baby hybrids" with tiny 80% nozzles.Yes,down low the oomph comes from the Turbonator but what about the upper RPMs,when upsizing compressor..?
Other than Turbonator adjustment/operation,
to explode an 366,it should take an massive amounts of fuel and add more to it,or abuse of an exhaust brake.
First,sorry for your turbo accident and for your cat.
Second,i am pretty sure that failure has everything to do with Turbonator/how it was adjusted.
Remember,you only have the "baby hybrids" with tiny 80% nozzles.Yes,down low the oomph comes from the Turbonator but what about the upper RPMs,when upsizing compressor..?
Other than Turbonator adjustment/operation,
to explode an 366,it should take an massive amounts of fuel and add more to it,or abuse of an exhaust brake.
Thread Starter
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FTE Chapter Leader
Joined: Jan 2005
Posts: 13,096
Likes: 4,705
From: Henderson, NV
When the new turbo actually gets here and I have installed and run it. I'm expecting it this week.
I agree to a certain extent. The Turbonator is capable of driving a supercore a lot harder than the regular turbine scroll. My theory is the 366 got overdriven in the Turbonator's quest to achieve target boost, and then the sudden shutoff surged the compressor so bad it stopped it dead while the turbine kept trying to spin. My hope is that moving up to a larger compressor will get me the mass flow to maintain boost requested while lowering turbocharger rpm. So yes, the failure is because of the way the Turbonator has been adjusted, but it was adjusted that way because of the desire to flow more air in order to reduce EGTs.
Been following this but not commenting lately.
First,sorry for your turbo accident and for your cat.
Second,i am pretty sure that failure has everything to do with Turbonator/how it was adjusted.
Remember,you only have the "baby hybrids" with tiny 80% nozzles.Yes,down low the oomph comes from the Turbonator but what about the upper RPMs,when upsizing compressor..?
Other than Turbonator adjustment/operation,
to explode an 366,it should take an massive amounts of fuel and add more to it,or abuse of an exhaust brake.
First,sorry for your turbo accident and for your cat.
Second,i am pretty sure that failure has everything to do with Turbonator/how it was adjusted.
Remember,you only have the "baby hybrids" with tiny 80% nozzles.Yes,down low the oomph comes from the Turbonator but what about the upper RPMs,when upsizing compressor..?
Other than Turbonator adjustment/operation,
to explode an 366,it should take an massive amounts of fuel and add more to it,or abuse of an exhaust brake.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Man, I really wish you would explore better tuning to reduce your EGT’s... So many of us have been where you are with that and found a solution.
I’m currently running 238/100’s and an old school S366 with 150k miles on it now. I run out of fuel long before EGT’s are a problem. Low RPM smoke is a problem, but I have not requested any revisions yet.
I’m currently running 238/100’s and an old school S366 with 150k miles on it now. I run out of fuel long before EGT’s are a problem. Low RPM smoke is a problem, but I have not requested any revisions yet.
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,346
Likes: 5,941
From: Lake Hartwell, GA
Man, I really wish you would explore better tuning to reduce your EGT’s... So many of us have been where you are with that and found a solution.
I’m currently running 238/100’s and an old school S366 with 150k miles on it now. I run out of fuel long before EGT’s are a problem. Low RPM smoke is a problem, but I have not requested any revisions yet.
I’m currently running 238/100’s and an old school S366 with 150k miles on it now. I run out of fuel long before EGT’s are a problem. Low RPM smoke is a problem, but I have not requested any revisions yet.
Unless I am understanding the function of the Turbonator, which is entirely possible.
Thread Starter
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FTE Chapter Leader
Joined: Jan 2005
Posts: 13,096
Likes: 4,705
From: Henderson, NV
Man, I really wish you would explore better tuning to reduce your EGT’s... So many of us have been where you are with that and found a solution.
I’m currently running 238/100’s and an old school S366 with 150k miles on it now. I run out of fuel long before EGT’s are a problem. Low RPM smoke is a problem, but I have not requested any revisions yet.
I’m currently running 238/100’s and an old school S366 with 150k miles on it now. I run out of fuel long before EGT’s are a problem. Low RPM smoke is a problem, but I have not requested any revisions yet.
The problem is that he needs the "decel tune" or "exhaust brake" tune from DP in order to utilize the exhaust brake feature of the Turbonator. So, unless he can find a Hydra tuner that will support his exhaust brake endeavor with the Turbonator, he is stuck with DP Tuner.
Unless I am understanding the function of the Turbonator, which is entirely possible.
Unless I am understanding the function of the Turbonator, which is entirely possible.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Your BTS transmission will shift great with stock PMT2 shift logic. Brian’s own tunes only slightly modify this. He does not modify line pressures except to compensate for oversized tires or something. Many tuners used to muck with transmission stuff a lot more than they do now. I’ve been happy with PHP library 95% of the time - specifically for shifting. Not sure if your injector size is in the Titan library, but I’ll send you my spare/test chip as soon as I get it back. At most, you’ll be out a few bucks to buy a tune from someone to try.
I only feel this strongly because I have helped several people switch to better tunes and the results were always the same. Less smoke, lower EGT, less noise and better MPG. There have been a couple of exceptions, but I blame their failures on the other tuners’ poor customer service (the struggle is real).
I only feel this strongly because I have helped several people switch to better tunes and the results were always the same. Less smoke, lower EGT, less noise and better MPG. There have been a couple of exceptions, but I blame their failures on the other tuners’ poor customer service (the struggle is real).