Nitrous outlet question for LT4
Thread Starter
Racer
Joined: Apr 2010
Posts: 436
Likes: 17
From: Las Vegas Nevada
Nitrous outlet question for LT4
Can someone explain the benefit or downfalls of the spray bar set-up on the new LT4 vs. a plate or fogger nozzle set-up? Here's the reason for my questions beyond the obvious lack of understanding. LOL
Nitrous has a great cooling effect as we all know. With the spray bar set-up the nitrous sprays after the screws on the supercharger. Why is this better than spraying off of say a plate set-up or even just a fogger nozzle in the intake track? What are my benefits?
My thinking is it would be better to have the cooling effect of the nitrous going through the blower vs. after it and therefore maybe a plate set-up of fogger nozzle is the way to go?
I'm ready to pull the trigger and just want to make sure I'm getting the most bang for my buck so to speak. Thanks for any help, clarification or education you can provide.
Nitrous has a great cooling effect as we all know. With the spray bar set-up the nitrous sprays after the screws on the supercharger. Why is this better than spraying off of say a plate set-up or even just a fogger nozzle in the intake track? What are my benefits?
My thinking is it would be better to have the cooling effect of the nitrous going through the blower vs. after it and therefore maybe a plate set-up of fogger nozzle is the way to go?
I'm ready to pull the trigger and just want to make sure I'm getting the most bang for my buck so to speak. Thanks for any help, clarification or education you can provide.
Supporting Vendor
Joined: Feb 2009
Posts: 4,421
Likes: 1,430
From: Mesa Az
the spray bar will hit harder and distribute more evenly across all cylinders. The iat sensor won't really see the drop but iats obviously are dropping. Are you a manual or auto car btw?
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Cordes Performance Racing aka "CPR"
Owner of AZ's premier LSX/LTX motorsports shop
http://cordesperformanceracing.com/
www.facebook.com/cordesperformanceracing.com
joe@cordesperformanceracing.com
480-359-5914
Thread Starter
Racer
Joined: Apr 2010
Posts: 436
Likes: 17
From: Las Vegas Nevada
So there is no real benefit to spraying before the blower to help cool it as well? Again, just curious and want to make sure I build the car right.
Does anyone make a dedicated that doesn't need to be located in the passenger compartment of the car yet? Just one more thing I need to figure out so I don't get kicked out of every track at tech inspection.
Former Vendor
Joined: Apr 2015
Posts: 495
Likes: 36
From: Waco Texas
It's an A8 car.
So there is no real benefit to spraying before the blower to help cool it as well? Again, just curious and want to make sure I build the car right.
Does anyone make a dedicated that doesn't need to be located in the passenger compartment of the car yet? Just one more thing I need to figure out so I don't get kicked out of every track at tech inspection.
So there is no real benefit to spraying before the blower to help cool it as well? Again, just curious and want to make sure I build the car right.
Does anyone make a dedicated that doesn't need to be located in the passenger compartment of the car yet? Just one more thing I need to figure out so I don't get kicked out of every track at tech inspection.
Using a throttle plate will spray into the blower as you know, most people worry about heat in the blower due to the compression of fuel in the blower. Most people do not like to spray into the blower with fuel. I will say the spray bars are machined to spray directly in the runner helping distribution. I have seen cars with spray bars pick up more horsepower over the throttle plate. As far as a dedicated fuel supply we do offer a dedicated for C7Z that mount in the trunk.
http://www.nitrousoutlet.com/dedicat...el-system.html
Supporting Vendor
Joined: Feb 2009
Posts: 4,421
Likes: 1,430
From: Mesa Az
It's an A8 car.
So there is no real benefit to spraying before the blower to help cool it as well? Again, just curious and want to make sure I build the car right.
Does anyone make a dedicated that doesn't need to be located in the passenger compartment of the car yet? Just one more thing I need to figure out so I don't get kicked out of every track at tech inspection.
So there is no real benefit to spraying before the blower to help cool it as well? Again, just curious and want to make sure I build the car right.
Does anyone make a dedicated that doesn't need to be located in the passenger compartment of the car yet? Just one more thing I need to figure out so I don't get kicked out of every track at tech inspection.
Thread Starter
Racer
Joined: Apr 2010
Posts: 436
Likes: 17
From: Las Vegas Nevada
Using a throttle plate will spray into the blower as you know, most people worry about heat in the blower due to the compression of fuel in the blower. Most people do not like to spray into the blower with fuel. I will say the spray bars are machined to spray directly in the runner helping distribution. I have seen cars with spray bars pick up more horsepower over the throttle plate. As far as a dedicated fuel supply we do offer a dedicated for C7Z that mount in the trunk.
http://www.nitrousoutlet.com/dedicat...el-system.html
http://www.nitrousoutlet.com/dedicat...el-system.html
On the dedicated, I know you have one that mounts in the trunk but the NHRA says that is technically in the passenger compartment of the vehicle and they will not tech the car. I have one of your under hood dedicateds on my C6 and love it...I love the entire direct port setup you did to include all the support components...TOP NOTCH all the way!!! Are you guys working a similar under hood version of the dedicated for the C7? Could I make a C6 dedicated work if I can find a place to mount it in the engine compartment? Thanks again for all the info and I'll get the blower to my local shop so we can get it sent off to you to plum. Thanks again!!!!
Last edited by Alaska SS; Jan 5, 2017 at 08:12 AM.
Thread Starter
Racer
Joined: Apr 2010
Posts: 436
Likes: 17
From: Las Vegas Nevada
Oh wow, I've never heard that about the A8s. What's your opinion as to why? Is it from the shock to the tranny on the initial hit? If so, would a progressive controller solve the problem? I have a progressive controller on my C6 with a direct port and the nitrous comes in very smooth. It almost feels like a turbo spooling and as a result there is no big "hit" to the drivetrain. Man, that's scary and thanks for the heads up!!!!!!
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Supporting Vendor
Joined: Feb 2009
Posts: 4,421
Likes: 1,430
From: Mesa Az
Oh wow, I've never heard that about the A8s. What's your opinion as to why? Is it from the shock to the tranny on the initial hit? If so, would a progressive controller solve the problem? I have a progressive controller on my C6 with a direct port and the nitrous comes in very smooth. It almost feels like a turbo spooling and as a result there is no big "hit" to the drivetrain. Man, that's scary and thanks for the heads up!!!!!!
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
HPT just added support for updating "virtual torque" tables based on different airflow, timing, etc. Wondering if there's a way to take advantage of that to help with this. I haven't messed with it yet on any C7's
Melting Slicks
Joined: Apr 2007
Posts: 2,087
Likes: 17
From: Jupiter FL
If true, it probably could be done based off the advancement in timing that would occur post meth injections.
Advanced
Joined: Jul 2012
Posts: 82
Likes: 9
From: Council Bluffs Iowa
could a small pill, say 25hp just ahead of MAF meter be utilized to let the ecu know there is a lot more power coming through? Just thinking for ways to make a safe tune. I am planning a big fogger system on an A8 17' and didn't know about the transmission issues associated.