KILLING A DURAMAX Pt 6: 65% Better Turbo! 

I haven't been in school for over 35 years but I sit and listen like a school kid waiting to see what Mr Banks says next and learn I do !!! Thanks

Mr Banks, the best gift to automotive performance of our generation.

Man... I could listen to this man for hours. I highly respect you sir

Sad thing is who's gonna take your spot when your gone? No one breaks this stuff down and shares results like you do!

The amount of sheer knowledge being dumped online, for anyone, including competitors to see. Thank you for the enlightenment, I hope to see great things available in the future from this testing!

Makes is pretty easy for a GM guy looking for ways to upgrade his new L5P Dirtymax!!!! I’ve never seen another aftermarket brand offer up this kind of proven data to back up any of their claims for adding power.... Thanks Mr. Banks!!!! Keep em coming!!!!

Gale, I was at the DMAX plant in Ohio for a tour last week. I wish you could’ve seen how many employees had your shirt on! I tried to take a picture but was immediately reprimanded by the tour guide! He mentioned during his presentation the special 6.6s they build specifically for you.

Thanks MR. power for taking us along with you

Yes!!! These episodes are so full of science and data. Keep it up!

Thanks Mr. Bank for the videos, I been following since the beginning of this challenge.

Maths, science and physics and an open mind. Love it !!!!!

When Gale puts on his glasses, you know you gonna learn today.

Thank you very much G.Banks! I really happy to meet with you via this killing series :) You description and presentation is really good and easy to understand. I 'm looking forward for next video.

I just want to say I loooooove this series you’ve done, I’ve listened to all of it and learned so much, I would really love to see more videos like this, not just from a durmax but from all walks of diesal life, I’m a young guy but loved learning about the little fine details of how to make good solid power in a motor, and no one has explained it better than you MR. Banks 🤙🏻

Wow!!! Serious performance numbers and you aren't even pushing the precision turbo yet!! Damn!!! Let's see what the precision turbo can do! Thanks for taking us along Mr. Banks......

My favorite channel! Thanks for all the information Gale! Can't wait until the next video in the series.

This was the best one yet! Keep it up I truly look forward to these.

You guys at Banks are killin it!! Nice

Most of this is over my head, but I'm still learning! Thanks for sharing your knowledge, Gale. When I start improving the performance of my Powerstroke, your products will be at the top of my list.

Another superb entry to the series. Thanks from Australia, Mr Banks.

Your knowledge is amazing and your technical explanation is detailed and interesting, easy to listen to. I love your passion and can listen to you for hours.

Mr. Banks this stuff is amazing! The amount of science and data you have is very intersting. I learn so much watching these. Thank you for taking the time to do this.

It's way past my bedtime but I don't care. Banks comes first, I'll sleep when I'm dead!

I really enjoy these videos I love the technical breakdown on everything your the man Mr.Banks

Another great sermon Mr. Banks. Thanks for having Diesel Church for us.

Very informative video Gale! It’s very interesting to see the turbos compared on so many different parameters.

Nice explanation Thanks for your videos I like to watch and see whats going on 👍👍👍

As much as I love the killing a Duramax series, I want to hear about the diff covers!!!

Absolutely loving these videos! I’m a hardcore duramax guy and I love the science behind the testing and upgrades you guys are doing

Fascinating, it is such a refreshing approach to see detailed SCIENTIFIC data, I am guessing how the turbo lag will be addressed but keeping it to myself (unusually), some solutions are not as practical but I suspect the answer is surprisingly simple. The Banks Power videos are quality information, and I do appreciate the time taken in making them.

I love this channel. Excellent work!

As always awesome vid....Now wheres that diff cover?

Soooo much knowledge, firt book i ever bought as a young mechanic was his How to Turbo Small Blocks, that was 42 years ago and sir youre still educating, a national treasure.

Love this series. Like the technical detail in these videos. I am not going to blow up my own engine but will get it to perform better.

This man is one of the greatest gifts to this industry! I've been following his work since i was a little kid back in the 7.3 idi days. Thanks Gale for all you do, you have been a huge inspiration to me.

Amazing video!! Love from Brazil!!

Thank you for including throttle response!

I love this series! Thanks Mr Banks!

"...and then it'd be like God hit you in the back with a 16 pound hammer." That's the best description of turbo lag I've ever heard.

Best videos on the internet!!!! Thanks for the knowledge!!!!!

It's great learning from Mr. Banks and can't wait for content!

Put both of them on there! Loving these videos

This series is amazing. I bet adding Propane injection would reduce some of the turbo lag :)

This is awesome 👍🏻 can’t wait for you to do the Cummins😁

This is great, so interesting, learning tons, thanks.

Another amazing vid, Gale. Thanks so much.

Yes! Been waiting for this.

First time viewer of your channel and I'm very impressed "Mr. Banks" . You definetly know your stuff on reading automotive data and calibrating for optimal performance. I love cars but my expertise is in calibrating computer hardware. This was very informative, Thank you!

I am binge watching and learning about stuff I definitely don't need but desperately want.

Mr. Banks I am 58 years old and I have worked on all types of engines everything from high-performance gas engines to diesel engines even 2 stroke outboards and you sir have had a hand in it all this time I first heard about you in the early 80's and I was amazed you gave me inspiration to follow the path I am on today. Thank you mr. Banks for sharing all your knowledge with us from your student Robert Johnson always following and watching.

A masterclass as always!

WOW, MR. BANKS YOU REALLY PUT SOME HARD DATA FACTS INTO YOUR PRODUCT, I NEEDS THIS STUFF FOR MY 1ST GEN 1991 DODGE 4WD W250‼️OUTSTANDING JOB HANDS DOWN‼️‼️

Learn more in each session than anywhere else in one session (this one)I've learned more than anywheres else... thanks...

I love the video you explained everything

I was really stragling to get a VGT map. The data presented tells a story. thanks

Mr. Banks is an absolute master.Thank you very much from Spain !!

I love you channel keep up the good work Mr Banks. Good job mate

I’d like to see you guys do the same series with a Cummins!!!

It sounds like GM did their homework on the variable geometry turbo. Good driviability, decent power at 2,800 RPM, and decent fuel economy. It is a perfect sized turbo for a STOCK application. However, there is not much "head room" from modification over stock power, except for maybe some improvement on the air inlet. If pushed passed the stock settings, the turbo becomes very inefficient, very quickly, as demonstrated here. So overall, GM designed a turbo that delivers its full potential in a stock application. No performance was left on the table. Also to note, Gale is correct about placing a larger turbo on an otherwise stock engine. It wouldn't create any more power than stock, as limited by the single MAF Sensor. it would actually decrease drivability, as you would have introduced unneeded turbo lag. The best concept is to look at your situation and power needs, then build the engine to your desired performance level. Everything needs to work in a coherent, complementary environment to reach the goals and expectations. If one item, such as an oversized turbo, is out of spec for the rest of the engine, the entire system produces sub-par results overall. Those last two sentences can be applied to multiple facets of life. If the "intercooler" at work cannot keep up with the workload, the entire team has to work harder to product the same level of "Horsepower" (AKA Output). If you overtax your marriage, such as the overtaxing of the stock Turbo Charger, you will see degradation of performance throughout the entire system. You cannot neglect one aspect of the system and expect max output.

Amazing video, Gale. Can’t wait to see the PPEI squad in there with you next!

Love the info! Would be awesome to see a more comparable size gated turbo vs vnt. Like a 62 or 65mm gated vs stock as it would cut down boost lag ect. But still break down the data or temps fuel efficiency ect. Love the video!!!!

I like how you can see that Aron has become more comfortable around the camera as the series progresses. In the earlier episodes he seemed more nervous but now he's doing just fine! :D

What's REALLY impressive is that you have a printer in the shop large enough to print that single sheet of paper LOL.

Great video

I think that's awesome that he's almost 80 years old and he still doing this thats cool

love it gale ,thanks for all the tech you guy really break it down well,

That upcoming roots-type supercharger will alleviate that turbo lag, you can Bank on it! All in the plan. That's the beauty of Turbo supercharging.

Luv this video series!! Sooo some of the local guys have started adding a smaller turbo before the main turbo on their diesel trucks... like one that you’d maybe see on a little 2 liter gasser... do you think a set up like that would help with the lag increase on this engine with the aftermarket turbo??

Gail I'm not going to lie to you. I would never go back to college but if you was ever to teach a class I would pay whatever it cost!! Lol this series you're doing is keeping me on the edge of my seat!

Damn Gale never stop. i seriously learn more from you than I ever did in 20 years of back yard wrenching. I wish u had more views.

Kory Willis will have some good input on the tuning no doubt, good choice

This guy has forgotten more than I will ever know about engines. I salute you sir.....

So much you can do to these LP5s and the best man to tell us what that is.

Fascinating. I would like you to run through the same thing with my gas engine. Great products, great company, great job! Love the Jackassery.

Good stuff!

This guy is an engine prodigy. BANKS, Mishimoto and S&B is all I run on my diesel.

Thanks for sharing your knowledge. Would have liked to seen a few dyno charts, how does turbo lag affect power under the curve ?

Im patiently waiting for this engine maxed out and call it a day....it kept going!

So much info ! 🤘🏼🤘🏼🤘🏼🤘🏼

Mr. Banks + Kory Willis? And I thought this couldn't get any better. Thanks for doing what you do Mr. Banks!

A video on sizing turbos for diesels with this lesson in mind would be rad. I've been looking to compare an HE351CW for my 6.5TD to the typical HX35/40 people throw on theses. Same goal, essentially stock performance but with reduced EGTs.

I might be cool, but I'll never be Gale Banks cool.

Been a big fan of your stuff for years Mr. Banks. Now don't let me down, I want to see what this cake is about!!

Another intriguing video. All that data logging could be overload unless you have the nouce to understand what the interplays mean. When there was nothing much in the cold side, the hot side was the epiphany, basically less back pressure which = less temp, wasted energy and the turbine is not working as hard which would help with reliability/durability... and of course a lot more headroom for more performance. As for the lag, loosening the torque convertor would be an all round negative for fuel consumption?. What about some sort of anti lag such as a shot of compressed air onto the turbine similar to a shot of nitrous. There was a a drag racer running a Buick engine who used to shoot Nitrous into the periphery of the turbine housing to spool it up and apparently it used to hit almost too hard off the line.Dual effect of turbine impingement plus the boost in exhaust volume when it went through the engine. Koennigsegg do a similar thing with their cars I believe using a carbon fibre storage tank. I also drove a propane supplemented heavy duty truck which had a much better response. Two fuel systems of course but a good way of accelerating without the hated hated rolling coal. Just for giggles maybe a side by side comparo of a VGV turbo vs normal would be interesting for response and restriction.

I certainly appreciate the monumental task of research, engineering and sheer knowledge that went into this video series but at the end of the day in my opinion its a bit like the difference between a swiss army knife and a scalpel. I think in my truck I would rather have the VG turbo which does lots of things well rather than a larger non-VG turbo which only really does one thing well and that is to compress as much air as possible for max output. At the end of the day, max output will break things.

Much respect to Gale for his knowledge and experience 👏👏

I listen to every word you said. That's crazy for me. Lol What a hell of a teacher.

I've learned more about turbochargers in the last few videos than I have in 15 years.

Hi gale. I have a Mercedes OM651 2014 Vito. It only has 310nm torque. Mercedes do a twin turbo version that has 500nm. What would you suggest to up the torque from 310 to 400nm with the single turbo? I’ve not come access much Mercedes tuning in this manner?? Is it all in the tune? Or simply freeing up the intake and exhaust to liberate the power... I’ve freeded up 60-70hp from my Toyota 1JZ with stock boost and ECU with intake and exhaust mods...

Hey Gale, would love to see a similar video comparing those parameters with and without water meth injection/straight water injection using realistic (on the road) intercooler outlet temps.

Gail's killing ME with anticipation for every installment of this series! The big improvement of the Precision Turbo over stock is lower turbine inlet pressure. The stocker was choked at 510 HP, and the Precision is just starting to sing. The larger turbine exducer diameter is the key here. The intercooler is doing a great job of basically pulling all of the compressor temperature rise out of the charge air, but 1.3 psi seems like a lot of pressure drop. I think Gail will be doubling up on the intercoolers to get max power. I think he'll get to 700 HP with it.

Cough. Diff cover update? Cough.

I’ve always wanted to get some Banks products for my 7.3. Maybe one day!

Looks like the perfect situation for a dual turbo setup. One being small and snappy to slam your head into the headrest for the first 4 seconds while the the Precision monster gets up to boost speed.

How does one double up on the maf?... Is it just plug two into the wire harness/intake or do you need to program another one in as well

Could you make the exhaust side a little smaller say 70mm happy between the stock and the 75 mm that would spin the turbo up faster and give more more rpms to the turbo witch would I turn spin the intake side up so you would get more volume at lower rpms?

It would be interesting to have as a future test 2 Precision turbos on the dynmax something like a 45mm and a 65 mm so that the smaller turbo would help to have the additional throttle response.

Mr banks, would a 7675 vgt keep the stock throttle response and keep most of the extra efficiency, or do i have to give up one or the other?

Hmmm... What about adding a "Mat sensor" that detects a commanded WOT & uses a jet of compressed air or brief blip of NOS to pre-spool the turbo from the intake side? I'm curious to see what result that would have on the data. (I'll admit I got the idea from Cletus McFarland's treatment of his Cummins 12V swapped Ford Galaxie. -- it seems to limit turbo lag to 1/10 sec.)

How loose would your converter have to be to run this on the street or tuning changes that would need to be made , ie, more fuel on the low end?