Direct Injection What's on your mind??
Thread Starter
Joined: Sep 2004
Posts: 2,013
Likes: 85
From: Hicksville MN!
Direct Injection What's on your mind?? GM stated that the new Gen V engines will come out with Direct Injection. Sounds like pretty good technology that has been around for a little while. I'm wondering what if any it will carry over into the performance market for high HP builds. Sure sounds promising. What is everyone's thoughts? 
Thread Starter
Joined: Sep 2004
Posts: 2,013
Likes: 85
From: Hicksville MN!
We'll have to benefit from it. Once everyone realizes the benefits, you won't want anything else. This isn't a new technology by any means. Diesels have been this way almost forever. This is how they run such high combustion #'s, dont require spark plugs, and can burn a fuel that is less refined.
I honestly dont know why we haven't implemented this into the gasoline world long ago. I'm excited about it. I look for the OEM's to come out with some crate engines that offer DI, similar to what GM has done with the E-rod's. Once that happens I expect the aftermarket to be all over it. It will require some revamping of our factory fuel systems but it will be worth it.
I honestly dont know why we haven't implemented this into the gasoline world long ago. I'm excited about it. I look for the OEM's to come out with some crate engines that offer DI, similar to what GM has done with the E-rod's. Once that happens I expect the aftermarket to be all over it. It will require some revamping of our factory fuel systems but it will be worth it.
Thread Starter
Joined: Sep 2004
Posts: 2,013
Likes: 85
From: Hicksville MN!
We'll have to benefit from it. Once everyone realizes the benefits, you won't want anything else. This isn't a new technology by any means. Diesels have been this way almost forever. This is how they run such high combustion #'s, dont require spark plugs, and can burn a fuel that is less refined.
I honestly dont know why we haven't implemented this into the gasoline world long ago. I'm excited about it. I look for the OEM's to come out with some crate engines that offer DI, similar to what GM has done with the E-rod's. Once that happens I expect the aftermarket to be all over it. It will require some revamping of our factory fuel systems but it will be worth it.
I honestly dont know why we haven't implemented this into the gasoline world long ago. I'm excited about it. I look for the OEM's to come out with some crate engines that offer DI, similar to what GM has done with the E-rod's. Once that happens I expect the aftermarket to be all over it. It will require some revamping of our factory fuel systems but it will be worth it.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
If I recall correctly the Cadillac V6 picked up 50 horsepower a couple of years ago when they went to direct injection. I am surprised that direct injection has not been engineered into the GM performance V8s yet.
Thread Starter
Joined: Sep 2004
Posts: 2,013
Likes: 85
From: Hicksville MN!
I agree. I hope it's something we can retrofit to our Fast intake or it will be more $$ right out the window again!
I hope your kidding...DI requires a different cylinder head design with a boss for the fuel injector as well as the spark plug. Fuel is sprayed....directly....into the cylinder.
I agree. I hope it's something we can retrofit to our Fast intake or it will be more $$ right out the window again!
I hope your kidding...DI requires a different cylinder head design with a boss for the fuel injector as well as the spark plug. Fuel is sprayed....directly....into the cylinder.
Thread Starter
Joined: Sep 2004
Posts: 2,013
Likes: 85
From: Hicksville MN!
Yeah, you're going to need a completely new top end from cylinder heads to intake manifold. The whole point of DI is that the injector sits in the head and not in the intake track anymore...so retrofitting DI to current engines will have nothing to do with the intake manifold. At the least it would be plugging up the existing injector holes as they will be of no use anymore and you don't want open holes in your manifold.
With all the dumb people/posts in this forum, one can never be to careful with seemingly idiotic posts. It's better to be safe than sorry, so when I am faced with such posts I tend to just go along as if the post was real and not sarcastic.
Thread Starter
Joined: Sep 2004
Posts: 2,013
Likes: 85
From: Hicksville MN!
On The Tree
Joined: Mar 2012
Posts: 131
Likes: 2
Direct injection brings a bunch of problems to the table. Go check out the Audi RS4 forums for the power robbing valve debris build up that happens because there is no cleaning fuel wash across the back of the intake valve head. This is now happening to the GM V6 motors, VW DI motors, Lexus DI motors and many others.
Direct injection brings a bunch of problems to the table. Go check out the Audi RS4 forums for the power robbing valve debris build up that happens because there is no cleaning fuel wash across the back of the intake valve head. This is now happening to the GM V6 motors, VW DI motors, Lexus DI motors and many others.
Thread Starter
Joined: Sep 2004
Posts: 2,013
Likes: 85
From: Hicksville MN!
Direct injection brings a bunch of problems to the table. Go check out the Audi RS4 forums for the power robbing valve debris build up that happens because there is no cleaning fuel wash across the back of the intake valve head. This is now happening to the GM V6 motors, VW DI motors, Lexus DI motors and many others.
the power robbing valve debris build up that happens because there is no cleaning fuel wash across the back of the intake valve head.
As mentioned, a simple solution would be for a catch can to be installed or the PCV system to be vented out in the air as apposed to pulled by the vacuum back in the manifold.