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Old Jul 2, 2015 | 10:40 AM
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Hey guys,

Just trying to get some clarification if anyone else is running the smaller pulley. I have a 14 automatic z51 with ECS, no restrictor plate with the standard pulley(4.1). Supporting mods right now just consist of ALKY single nozzle meth and ARH 1 7/8 LT w/ high flow cats. I've heard you can run the dual nozzle, turn up the meth and run the smaller pulley? Current setup I believe makes about 10 lbs and smaller pulley I believe is somewhere between 12-14? Any insight is greatly appreciated. Thanks in advance!
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Old Jul 2, 2015 | 10:48 AM
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What size crank pulley, I can do the math!!
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Old Jul 2, 2015 | 10:53 AM
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Originally Posted by Nicholoso
Hey guys,

Just trying to get some clarification if anyone else is running the smaller pulley. I have a 14 automatic z51 with ECS, no restrictor plate with the standard pulley(4.1). Supporting mods right now just consist of ALKY single nozzle meth and ARH 1 7/8 LT w/ high flow cats. I've heard you can run the dual nozzle, turn up the meth and run the smaller pulley? Current setup I believe makes about 10 lbs and smaller pulley I believe is somewhere between 12-14? Any insight is greatly appreciated. Thanks in advance!
With all the motor being stock if me I would leave good enough alone. I am think here in the long run you will have a safer motor.
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Old Jul 2, 2015 | 11:00 AM
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Fairly certain it's the 3.75 blower pulley that will get you to 12-14 psi.

Originally Posted by Nicholoso
Hey guys,

Just trying to get some clarification if anyone else is running the smaller pulley. I have a 14 automatic z51 with ECS, no restrictor plate with the standard pulley(4.1). Supporting mods right now just consist of ALKY single nozzle meth and ARH 1 7/8 LT w/ high flow cats. I've heard you can run the dual nozzle, turn up the meth and run the smaller pulley? Current setup I believe makes about 10 lbs and smaller pulley I believe is somewhere between 12-14? Any insight is greatly appreciated. Thanks in advance!
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Old Jul 2, 2015 | 11:07 AM
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Originally Posted by T/A KID
What size crank pulley, I can do the math!!
3.75 to C7&7's point. I know it should make around 14 lb. My concern is whether it is safe for me to run it.
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Old Jul 2, 2015 | 11:10 AM
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Originally Posted by Nicholoso
3.75 to C7&7's point. I know it should make around 14 lb. My concern is whether it is safe for me to run it.
I would do dual nozzle meth if I was going to push more than 10psi. Or run some type of race gas mixture for fuel.

That's just me though.
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Old Jul 2, 2015 | 11:26 AM
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Originally Posted by C7&7
I would do dual nozzle meth if I was going to push more than 10psi. Or run some type of race gas mixture for fuel.

That's just me though.
Ya I definitely would intend on dual nozzle for the meth and I always run 93 but I just didn't know if that would be enough or if anyone else has done it yet.
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Old Jul 2, 2015 | 11:29 AM
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Looks like I won't be changing the pulley then lol.
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Old Jul 2, 2015 | 11:42 AM
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Originally Posted by Nicholoso
Looks like I won't be changing the pulley then lol.

Sorry Nicholoso! We have been super busy so my forum presence has been down, I apologize.

If you have the base kit you have a 4.1 upper pulley and an 8.2" lower.

We typically stay with a single nozzle maxed out, you get a better spray pattern from one nozzle maxed then two not maxed.

If you remove the restrictor plate you will make around 10lbs and 650-700 rwhp.

If you swap out the pulley to a 3.75" you will be closer to the 800 area and 14 lbs of boost, but you will need additional fueling. Cam, or we have forum member "C6switchblade" who used a lash cap on the fuel lobe and is knocking on the door of 800 safely, fuel wise at least.

14 lbs of boost is then maxing out the alky kit so the spray pattern will be very good, we do not go to dual nozzle until we go higher in the boost. 18-20 lbs, even then my preferred method is direct port meth for better distribution to each cylinder, but not every customer is will to go to that expense.

I hope that helps, good luck with your build!
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Old Jul 2, 2015 | 12:59 PM
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Originally Posted by DOUG @ ECS
Sorry Nicholoso! We have been super busy so my forum presence has been down, I apologize.

If you have the base kit you have a 4.1 upper pulley and an 8.2" lower.

We typically stay with a single nozzle maxed out, you get a better spray pattern from one nozzle maxed then two not maxed.

If you remove the restrictor plate you will make around 10lbs and 650-700 rwhp.

If you swap out the pulley to a 3.75" you will be closer to the 800 area and 14 lbs of boost, but you will need additional fueling. Cam, or we have forum member "C6switchblade" who used a lash cap on the fuel lobe and is knocking on the door of 800 safely, fuel wise at least.

14 lbs of boost is then maxing out the alky kit so the spray pattern will be very good, we do not go to dual nozzle until we go higher in the boost. 18-20 lbs, even then my preferred method is direct port meth for better distribution to each cylinder, but not every customer is will to go to that expense.

I hope that helps, good luck with your build!
This is a great help, thanks as always, Doug.
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Old Jul 2, 2015 | 03:04 PM
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Originally Posted by Nicholoso
This is a great help, thanks as always, Doug.
Nicholoso,

Got your PM but i figured i would answer here as more people may benefit. Part number you need is from GM is 12596509. It is a lash cap from an LS7 that you will install on the tip of your stock high pressure fuel pump. It is magnetic but I would still be very careful upon install. Should be worth approx 20% more fuel at full tilt. best part is that it only take about an hour to install and costs about 10 bucks!

Enjoy!
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Old Jul 2, 2015 | 03:11 PM
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Originally Posted by c6switchblade
Nicholoso,

Got your PM but i figured i would answer here as more people may benefit. Part number you need is from GM is 12596509. It is a lash cap from an LS7 that you will install on the tip of your stock high pressure fuel pump. It is magnetic but I would still be very careful upon install. Should be worth approx 20% more fuel at full tilt. best part is that it only take about an hour to install and costs about 10 bucks!

Enjoy!
This is why the forums are great!
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Old Jul 2, 2015 | 03:51 PM
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Will the lash cap support running E85 with a blower setup?
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Old Jul 2, 2015 | 04:16 PM
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Elite I'm going to find out, but I think it can hit 600 to 630 rwhp on e85 with the lash cap no cam
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Old Jul 2, 2015 | 07:13 PM
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on a manual car with a lash cap you "might be close" gas tank pump will be super close too unless you have meth to take some load off it. Than yes you'll be fine, we have done a lot of different E85 combo's and make a fuel system to support the higher hp needs on e85.
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Old Jul 3, 2015 | 08:46 AM
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Originally Posted by Joe@CPR
on a manual car with a lash cap you "might be close" gas tank pump will be super close too unless you have meth to take some load off it. Than yes you'll be fine, we have done a lot of different E85 combo's and make a fuel system to support the higher hp needs on e85.
I'm getting the Ecs supercharger I already bought the E85 what do I need to run Ecs and e85
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Old Jul 3, 2015 | 09:17 AM
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Originally Posted by Seannyc
I'm getting the Ecs supercharger I already bought the E85 what do I need to run Ecs and e85
What do you mean you bought the e85?
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To Pulley Question?

Old Jul 4, 2015 | 08:10 AM
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Originally Posted by Joe@CPR
What do you mean you bought the e85?
I got the E85 kit never installed it waiting to get the Ecs supercharger but need to no what I need to change to have this set up just fuel pumps ?
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Old Jul 4, 2015 | 09:15 AM
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Originally Posted by Seannyc
I got the E85 kit never installed it waiting to get the Ecs supercharger but need to no what I need to change to have this set up just fuel pumps ?
How much power do you plan to make?
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Old Jul 4, 2015 | 09:31 AM
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Originally Posted by Joe@CPR
How much power do you plan to make?
750 to 800whp
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