Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

8 0r 16 injectors?

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Old Jan 1, 2008 | 09:53 PM
  #21  
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The advantage to turning on a 2nd pump with a hobbs switch, or running the pumps at reduced speed is less heating of the fuel due to recirulation.


those aeromotive pro regulators have a 10an return, would that help with temps?
or fuel cooler?
Did you actually experience cavatation?

I was so confused before because when I search threads, they all come up saying that a Hobbs switch "activates". Makes me think on/off.

Last edited by ls1king000; Jan 19, 2008 at 08:54 PM.
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Old Jan 14, 2008 | 09:47 PM
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Originally Posted by gametech
Unfortunately, your question is irrelevant until someone markets a dual stage 2 injector per cylinder staged fuel control computer. If the injectors are staged, then you would be much better off. However, if the injectors are all fired constantly, you could at best only be equal to 8 larger injectors.
edit-- subsequent posts indicate that the fuel control computer you need IS available, so disregard this post.
There are several companies that do..
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Old Jan 19, 2008 | 08:52 PM
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Quote:
Originally Posted by TT402LS1 View Post
How much work is involed in upgrading in intake to accept 8 more injectors? Do they sell bungs to do this? Does a sponsor here do it?

Thanks - Ron

I've done it on a carb manifold. I can check on the cost


INTMD8, did the secondary injectors bungs mount vertical or angled toward the intake valve like stock?
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Old Jan 19, 2008 | 09:41 PM
  #24  
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Originally Posted by ls1king000
INTMD8, did the secondary injectors bungs mount vertical or angled toward the intake valve like stock?
They were machined and welded in the exact same angle as stock, though the secondary set was up higher in the runner so it wouldn't be an exact straight shot to the valve.

FWIW though the secondary set of injectors on my LT1 aimed directly at the floor of the intake port and it still worked flawlessly. I don't think the aim of the secondary injectors is very critical considering the velocity of the air/fuel charge at the point they would actually be turning on.
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Old Jan 20, 2008 | 03:37 PM
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On a 16 injector setup, would 60s on the "primary" side be small enough to retain low speed driveability and idle quality? Would one want to go smaller on the "primary" side and larger on the "secondary" side?
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Old Jan 20, 2008 | 03:48 PM
  #26  
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On a 16 injector setup, would 60s on the "primary" side be small enough to retain low speed driveability and idle quality? Would one want to go smaller on the "primary" side and larger on the "secondary" side?
Right, smaller injector on primary for better idle quality.
I think Mr.199mph here had 42#s on both stages, I'm stalking his garage

W2W has a neat little article on staged injection
http://w2wpowertrain.com/images_w2w/..._ON_DEMAND.pdf

Says that smaller primary injector will have greater pulse width, more idle control.

Last edited by ls1king000; Jan 20, 2008 at 06:30 PM.
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Old Jan 22, 2008 | 05:15 AM
  #27  
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Originally Posted by 67RSCamaroVette
There are several companies that do..
Yes, Mr reading comprehension, two weeks before you posted this I edited my post to reflect that I was wrong, and there are in fact computers that do what he needs.
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Old Feb 27, 2008 | 12:58 PM
  #28  
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Originally Posted by HUNTER02SS
Here is the solution to your problem and it work's great. Use the 16 injector's like you want. Run the first 8 off of you regular computer and then for your next 8 injector's go to this website www.splitsec.com and call them. They sell secondary injector computer systems that work directly off of boost. It is real inexpensive and you can have the extra set of 8 injector's turn on at a certain boost level. It has software for it also and is fully programmable. I am using there setup for my extra set of 4 injector's I have. This way I will also have a high and low boost setting. Hope this helps.
where is your 4 injectors go in at.

and could a person just run like 8 68lb injectors up to like 10psi and after that have another 4 or 8 turn on.
cause running e-85 is like running 110 oct. correct?
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Old Feb 27, 2008 | 04:25 PM
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Also, if your looking for 1000 Flywheel HP with E-85 you can run 8 96 #ers or 1000CC and be fine. thats taking into consideration that your using 40% more fuel for the E-85.
and if your tuner is a good turner then they should be able to tune them to idle just fine
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Old Feb 28, 2008 | 08:09 AM
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Originally Posted by Chiet_SS
Also, if your looking for 1000 Flywheel HP with E-85 you can run 8 96 #ers or 1000CC and be fine. thats taking into consideration that your using 40% more fuel for the E-85.
and if your tuner is a good turner then they should be able to tune them to idle just fine
8- 96# will be fine?
and who makes a good high to low impedence conversion box?
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Old Feb 28, 2008 | 11:43 AM
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Like this we just did this for a customer doing exactly what you are asking about.

Nate
Attached Thumbnails 8 0r 16 injectors?-dual-injectors.jpg   8 0r 16 injectors?-dual-injectors2.jpg   8 0r 16 injectors?-dual-injectors3.jpg  
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Old Feb 28, 2008 | 11:45 AM
  #32  
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Complete intake is $1200 includes fuel rails, mounts and welded bungs or $900 with you supplying the manifold.

Nate
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Old Nov 5, 2008 | 03:17 PM
  #33  
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not to bring up old stuff. but i am going with a high to low impenence converter.

if i run 120Lb(e85) when i am idling or crusing at like 1500 rpm. will it run fine or not?

thanks

also nate i like what you guys did. but is there any way to get duel injectors in like a ls2 mani?
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Old Nov 5, 2008 | 03:29 PM
  #34  
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https://ls1tech.com/forums/new-products-showcase/1009414-introducing-fiber-tuned-intake-manifolds.html

or could i put two sets on this? ^ ^ ^

or this? V V V

http://www.wilsonmanifolds.com/shop/...uct_detail&p=8
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Old Nov 5, 2008 | 03:42 PM
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I have a 16 injector manifold for sale.



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Old Nov 5, 2008 | 05:12 PM
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Default could you install the injectors in the intake elbow?

If you using a fast intake how would you install the injectors
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Old Nov 5, 2008 | 05:21 PM
  #37  
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you would have to have a system that could operate in Port Injection and batch fire simultaneously to get proper distribution firing into the plenum
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