Direct Injection What's on your mind??
#1
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?
#6
TECH Resident
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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.
#7
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.
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#9
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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.
#12
TECH Junkie
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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.
#13
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.
#17
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.
#18
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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.
#19
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.
#20
TECH Junkie
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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.