6 X 1000 cc injectors and ground LIM
06-01-08, 12:53 AM
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6 X 1000 cc injectors and ground LIM
I'm going with T04r turbo and this is what I'm going with for fuel setup: 6x1000cc injectors groung LIM and 2X255hp walbro pumps plus Haltech E8 for tuning.
Any thoughts on this? Any suggestions?
Thanks
Any thoughts on this? Any suggestions?
Thanks
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06-01-08, 06:11 AM
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Are you running 1000cc primaries from the GZero LIM, or in the position of the original 550's? When I tried running 850 primaries from my GZero LIM it didn't work too well. Its the "position" that the stock 550 primaries inject that from gives much better throttle response and pickup from idle IMHO.
Also with 1000cc primaries the fuel pressure you'll need to run might be too low, and so may have an effect on the rest of your injection setup which will run at the same pressure. Unless you run 2 fuel regulators...1 for primaries and 1 for secondaries.
Also with 1000cc primaries the fuel pressure you'll need to run might be too low, and so may have an effect on the rest of your injection setup which will run at the same pressure. Unless you run 2 fuel regulators...1 for primaries and 1 for secondaries.
06-01-08, 10:41 AM
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Well, this is our customer at AZRR, I am going to be running 6 1000cc injectors, these injectors are built by Paul Yaw of Yawpower.com. This is a fuel system that will support 620hp. The injectors are 1000cc high impendence injectors that can run at 1.2ms producing a clean and consistent idle. Also they can run any gas and e85. These are "dynoed injectors" this is good for specific injector information such as "battery dead time compensation" , "injector timing vs rpm". This setup is going to provide better tuning capabilities and more consistent fuel flow across the board.
These can also be run in parallel on a power fc setup due to the ohms resistances allowing two injectors per driver bank on the power fc. So with a ground zero manifold you can run six injectors with the power fc. No more need for resistors that have been proven to be unreliable. We are building a couple of these systems, they are new however we will be giving some impressive dyno information in the furture.
Now as far as the fuel amount many people are using two 1680cc and two 850cc injectors this is 5060cc and they are running out of fuel at high rpm and or high boost. 6000cc is fine if you can run it low enough to idle well and these Yawpower injectors are built for this.
I have attached a sheet Paul has provided for these new injectors, check it out
These can also be run in parallel on a power fc setup due to the ohms resistances allowing two injectors per driver bank on the power fc. So with a ground zero manifold you can run six injectors with the power fc. No more need for resistors that have been proven to be unreliable. We are building a couple of these systems, they are new however we will be giving some impressive dyno information in the furture.
Now as far as the fuel amount many people are using two 1680cc and two 850cc injectors this is 5060cc and they are running out of fuel at high rpm and or high boost. 6000cc is fine if you can run it low enough to idle well and these Yawpower injectors are built for this.
I have attached a sheet Paul has provided for these new injectors, check it out
06-01-08, 11:26 AM
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Glen,
Why not run 4 1680's in series and either 1000's or 750's (high imp) in the primaries. If you are looking for the most fuel, it seems like this may work for you. I have heard of some people using 1000's for primaries and they sem to work well without too many issues.
John
Why not run 4 1680's in series and either 1000's or 750's (high imp) in the primaries. If you are looking for the most fuel, it seems like this may work for you. I have heard of some people using 1000's for primaries and they sem to work well without too many issues.
John
Well, this is our customer at AZRR, I am going to be running 6 1000cc injectors, these injectors are built by Paul Yaw of Yawpower.com. This is a fuel system that will support 620hp. The injectors are 1000cc high impendence injectors that can run at 1.2ms producing a clean and consistent idle. Also they can run any gas and e85. These are "dynoed injectors" this is good for specific injector information such as "battery dead time compensation" , "injector timing vs rpm". This setup is going to provide better tuning capabilities and more consistent fuel flow across the board.
These can also be run in parallel on a power fc setup due to the ohms resistances allowing two injectors per driver bank on the power fc. So with a ground zero manifold you can run six injectors with the power fc. No more need for resistors that have been proven to be unreliable. We are building a couple of these systems, they are new however we will be giving some impressive dyno information in the furture.
Now as far as the fuel amount many people are using two 1680cc and two 850cc injectors this is 5060cc and they are running out of fuel at high rpm and or high boost. 6000cc is fine if you can run it low enough to idle well and these Yawpower injectors are built for this.
I have attached a sheet Paul has provided for these new injectors, check it out
These can also be run in parallel on a power fc setup due to the ohms resistances allowing two injectors per driver bank on the power fc. So with a ground zero manifold you can run six injectors with the power fc. No more need for resistors that have been proven to be unreliable. We are building a couple of these systems, they are new however we will be giving some impressive dyno information in the furture.
Now as far as the fuel amount many people are using two 1680cc and two 850cc injectors this is 5060cc and they are running out of fuel at high rpm and or high boost. 6000cc is fine if you can run it low enough to idle well and these Yawpower injectors are built for this.
I have attached a sheet Paul has provided for these new injectors, check it out
06-01-08, 01:11 PM
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There are a few reasons I am using 6 1000cc instead of a 720cc...First is giving room for increased boost pressure with out upgrading injectors, Two is the transition on a haltech for example is going to be a ton smoother.
The atomization of these injectors are better than any low impedance injector. This gives better and more consistent performance, not to mention you don't need a super big pump to supply the volume and pressures needed in fact at the 620hp calculation we were assuming 45psi, with boost 55psi at the most.
Also, a big plus with these yawpower injectors is the dead time is much less than your typical low impedance or even your stock injectors, in other words this injector open and closes very fast with little drop time.
Think about this, at 8000rpm of a rotary engine, you have like 4millisec to inject fuel, if the injector take 2millisec to open you only have 2millisec left to spray fuel, at hat rpm with large amount of boost you could need 5millisec with a 1680 so you are only really getting 3millisec of fuel with the new injectos we have a fast reaction so we have more time to acually spray fuel.
The atomization of these injectors are better than any low impedance injector. This gives better and more consistent performance, not to mention you don't need a super big pump to supply the volume and pressures needed in fact at the 620hp calculation we were assuming 45psi, with boost 55psi at the most.
Also, a big plus with these yawpower injectors is the dead time is much less than your typical low impedance or even your stock injectors, in other words this injector open and closes very fast with little drop time.
Think about this, at 8000rpm of a rotary engine, you have like 4millisec to inject fuel, if the injector take 2millisec to open you only have 2millisec left to spray fuel, at hat rpm with large amount of boost you could need 5millisec with a 1680 so you are only really getting 3millisec of fuel with the new injectos we have a fast reaction so we have more time to acually spray fuel.
06-01-08, 01:54 PM
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At 8000rpm shouldn't you have 7.5ms per cycle (360deg) to inject fuel, not 4ms? That would give you 6ms, if dead time is 1.5ms.
There are a few reasons I am using 6 1000cc instead of a 720cc...First is giving room for increased boost pressure with out upgrading injectors, Two is the transition on a haltech for example is going to be a ton smoother.
The atomization of these injectors are better than any low impedance injector. This gives better and more consistent performance, not to mention you don't need a super big pump to supply the volume and pressures needed in fact at the 620hp calculation we were assuming 45psi, with boost 55psi at the most.
Also, a big plus with these yawpower injectors is the dead time is much less than your typical low impedance or even your stock injectors, in other words this injector open and closes very fast with little drop time.
Think about this, at 8000rpm of a rotary engine, you have like 4millisec to inject fuel, if the injector take 2millisec to open you only have 2millisec left to spray fuel, at hat rpm with large amount of boost you could need 5millisec with a 1680 so you are only really getting 3millisec of fuel with the new injectos we have a fast reaction so we have more time to acually spray fuel.
The atomization of these injectors are better than any low impedance injector. This gives better and more consistent performance, not to mention you don't need a super big pump to supply the volume and pressures needed in fact at the 620hp calculation we were assuming 45psi, with boost 55psi at the most.
Also, a big plus with these yawpower injectors is the dead time is much less than your typical low impedance or even your stock injectors, in other words this injector open and closes very fast with little drop time.
Think about this, at 8000rpm of a rotary engine, you have like 4millisec to inject fuel, if the injector take 2millisec to open you only have 2millisec left to spray fuel, at hat rpm with large amount of boost you could need 5millisec with a 1680 so you are only really getting 3millisec of fuel with the new injectos we have a fast reaction so we have more time to acually spray fuel.
06-01-08, 03:31 PM
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You must be talking rev per milisec, that being said you are not injecting all of that time.....You are not injecting the full 7.5millisec
If you have 8000rpm you would then devide 60sec by 8000 giving you 7.5 millisec, is this your math? You would not be injecting this entire time...
06-01-08, 04:02 PM
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Sup Charlie.... We are of course are using CJ-motorspots dual pump bracket, I am working with Charles and Brandon, hopefully they will be able to offer this 1000cc injector with there fuel rails in the future.
06-01-08, 08:29 PM
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You have a tiny turbo. You'll never hit 600whp with it, no matter how much fuel you have. So run 4 1000cc inj. and you'll still have more than you need. Trust me, Im speaking off experience.
06-01-08, 10:07 PM
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Having extra fuel is something I like if you can still idle well. The fact is if we were shooting for 400 I would use 780 and 4 1000cc injectors, but we are shooting for 550hp. And yes it can be done, Jrat is making over 500 on a s5 engine with a lot less porting, and it is the same t67(to4r)...
