High performance vgt solenoid
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Cargo Master
Joined: May 2018
Posts: 2,442
Likes: 993
High performance vgt solenoid
Haven't seen any mention of this product on here.
Paging @speakerfritz
https://turbotimeusa.com/products/lightning-bolt-vgt-solenoid
Found a couple videos from the manufacturer but that's it. The basis is the oem solenoid is kind of weak and exhaust gasses tend to push the vanes in the turbine open sooner than they have to. This solenoid is stronger, holding the veins in their closed position (better, longer?) increasing spool up, low end and better vgt control throughout the rpm range.
Personally I have always thought the vgt was a little soft feeling in the low end. Making it feel laggier than it should/could be.
Paging @speakerfritz
https://turbotimeusa.com/products/lightning-bolt-vgt-solenoid
Found a couple videos from the manufacturer but that's it. The basis is the oem solenoid is kind of weak and exhaust gasses tend to push the vanes in the turbine open sooner than they have to. This solenoid is stronger, holding the veins in their closed position (better, longer?) increasing spool up, low end and better vgt control throughout the rpm range.
Personally I have always thought the vgt was a little soft feeling in the low end. Making it feel laggier than it should/could be.
FTE Legend
Joined: Mar 2017
Posts: 31,830
Likes: 9,154
From: Western NY
Okay I'm not a diesel mechanic nor trained in turbocharged CI engines but I have seen this before when it first came out a few years ago and since I have zero experience with this stuff, I didn't know what to think on this... Pretty wild you posted up. Maybe someone here has... Let me see if I can find any reviews on this...
Here's a link from the product page...
https://www.dieselworldmag.com/diesel-technology/optimize-your-vgt-turbo/?fbclid=IwAR1glDp00iuaQgxe5YiC-l1dagoLeWhUYKnURVWRfNj53TW4qN_YAIWUyoc
Here's a link from the product page...
https://www.dieselworldmag.com/diesel-technology/optimize-your-vgt-turbo/?fbclid=IwAR1glDp00iuaQgxe5YiC-l1dagoLeWhUYKnURVWRfNj53TW4qN_YAIWUyoc
Last edited by Overkill2; Apr 6, 2024 at 08:08 PM. Reason: Add to post
Thread Starter
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Cargo Master
Joined: May 2018
Posts: 2,442
Likes: 993
Okay I'm not a diesel mechanic nor trained in turbocharged CI engines but I have seen this before when it first came out a few years ago and since I have zero experience with this stuff, I didn't know what to think on this... Pretty wild you posted up. Maybe someone here has... Let me see if I can find any reviews on this...
Here's a link from the product page...
https://www.dieselworldmag.com/diese...TW4qN_YAIWUyoc
Here's a link from the product page...
https://www.dieselworldmag.com/diese...TW4qN_YAIWUyoc
Laughing Gas
Joined: Jan 2024
Posts: 840
Likes: 457
From: Up in Texas
I do have interest in trying one on my truck, but it is sadly about a year out on my priority list. Thanks for sharing as I had not heard of this before this thread.
I like the principal, easy install, no tuning and the trial period is less than $100 if you don't like it is a pretty nice option too.
I like the principal, easy install, no tuning and the trial period is less than $100 if you don't like it is a pretty nice option too.
FTE Legend
Joined: Mar 2017
Posts: 31,830
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From: Western NY
Since the turbo would have to come out for the this upgrade, it makes sense to me to rebuild the turbo with a 360 thrust bearing rebuild kit, as I learned from @brokestroke and his informative posts, as well as install a MBRP 4 inch stainless down pipe.
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Cargo Master
Joined: May 2018
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Since the turbo would have to come out for the this upgrade, it makes sense to me to rebuild the turbo with a 360 thrust bearing rebuild kit, as I learned from @brokestroke and his informative posts, as well as install a MBRP 4 inch stainless down pipe.
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Mountain Pass
Joined: Jun 2011
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From: Edgewood NM
This has also intrigued me. The 11-14 trucks seem to get better fuel mileage because they are more responsive. I wonder if this would put the newer trucks into that same range or make it just feel no so dang lazy.
Lead Driver
Joined: Feb 2005
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From: The Great State of Texas
Go to 6:30 in this video...
Mountain Pass
Joined: Jun 2011
Posts: 217
Likes: 43
From: Edgewood NM
The 11-14 trucks spool up faster due to a small turbine and ball bearings whereas the 15+ trucks have a larger turbine and regular brass bearings. This change was discussed by David Ives (6.7 PSD project manager) during the product release for the '15 trucks and he claimed that other changes like fueling and torque converter was changed to offset the larger slower to spool turbo, but many reported later they could feel a sluggish feel. Not sure how much this stronger VGT solenoid improves spool up, but it sure sounds like it could improve the exhaust brake performance.
Cargo Master
Joined: Jul 2011
Posts: 2,663
Likes: 971
From: Walpole, MA
The 11-14 trucks spool up faster due to a small turbine and ball bearings whereas the 15+ trucks have a larger turbine and regular brass bearings. This change was discussed by David Ives (6.7 PSD project manager) during the product release for the '15 trucks and he claimed that other changes like fueling and torque converter was changed to offset the larger slower to spool turbo, but many reported later they could feel a sluggish feel. Not sure how much this stronger VGT solenoid improves spool up, but it sure sounds like it could improve the exhaust brake performance.
https://kcturbos.com/products/kc-gen...erstroke-15-18
https://www.thoroughbreddiesel.com/w...RoCEZMQAvD_BwE
Billet wheels are a common upgrade in the 7.3 PSD word due to turbo bark.
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Cargo Master
Joined: May 2018
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Wonder if a billet (in theory lighter, I think) compressor wheel would help if someone thought the 2015+ trucks were too sluggish.
https://kcturbos.com/products/kc-gen...erstroke-15-18
https://www.thoroughbreddiesel.com/w...RoCEZMQAvD_BwE
Billet wheels are a common upgrade in the 7.3 PSD word due to turbo bark.
https://kcturbos.com/products/kc-gen...erstroke-15-18
https://www.thoroughbreddiesel.com/w...RoCEZMQAvD_BwE
Billet wheels are a common upgrade in the 7.3 PSD word due to turbo bark.
Cargo Master
Joined: Jul 2011
Posts: 2,663
Likes: 971
From: Walpole, MA
Just curious, did you go bigger on the turbine wheel?
Lead Driver
Joined: Feb 2005
Posts: 7,923
Likes: 2,642
From: The Great State of Texas
Wonder if a billet (in theory lighter, I think) compressor wheel would help if someone thought the 2015+ trucks were too sluggish.
https://kcturbos.com/products/kc-gen...erstroke-15-18
https://www.thoroughbreddiesel.com/w...RoCEZMQAvD_BwE
Billet wheels are a common upgrade in the 7.3 PSD word due to turbo bark.
https://kcturbos.com/products/kc-gen...erstroke-15-18
https://www.thoroughbreddiesel.com/w...RoCEZMQAvD_BwE
Billet wheels are a common upgrade in the 7.3 PSD word due to turbo bark.
One thing to remember with todays emissions strick diesels is turbo boost will always come first and then additional fuel during acceleration in order to reduce soot/emissions which equates to x amount of lag.