Injector sizing with dry shot?
Thread Starter
Staging Lane
Joined: Aug 2020
Posts: 94
Likes: 10
Injector sizing with dry shot? Hello,
I was looking for some advice on injector sizing. I found a little info by doing a search but still some things I'm not sure of. So this is my setup
-Stock LQ9 short block with new rings. Steel top ring gaped for juice.
-ported 243 heads
-11:1 compression
-Summit 8707 cam (duration 226 int./238 exh. Lift 0.600 int./0 600 exh. 113 LSA)
-F.A.S.T. LSXR 102 intake drilled and plumed for direct port dry N20
-Long tube headers 1 7/8 tubes and 3" collector
-3600 rpm FTI converter with 4L80e and 3.73's in the rear.
-58 PSI fuel pressure with Walboro 450 in tank pump
So I want to spray a progressive shot with a Terminator X. I'm trying to figure out what size injector to run. I can't get E85 in my area so I'm stuck with normal 93. I'm guessing the NA crank power would be around 475-500 hp. I want to be able to spray a 200 progressive shot.
All of the injector sizing calculators I have found only give data for naturally aspirated, supercharged or turbocharged. So I'm not sure what to go with for my setup. I was considering Daka 60's. They flow around 70 lbs at 58 psi of fuel pressure. Anyone have any incite?
I was looking for some advice on injector sizing. I found a little info by doing a search but still some things I'm not sure of. So this is my setup
-Stock LQ9 short block with new rings. Steel top ring gaped for juice.
-ported 243 heads
-11:1 compression
-Summit 8707 cam (duration 226 int./238 exh. Lift 0.600 int./0 600 exh. 113 LSA)
-F.A.S.T. LSXR 102 intake drilled and plumed for direct port dry N20
-Long tube headers 1 7/8 tubes and 3" collector
-3600 rpm FTI converter with 4L80e and 3.73's in the rear.
-58 PSI fuel pressure with Walboro 450 in tank pump
So I want to spray a progressive shot with a Terminator X. I'm trying to figure out what size injector to run. I can't get E85 in my area so I'm stuck with normal 93. I'm guessing the NA crank power would be around 475-500 hp. I want to be able to spray a 200 progressive shot.
All of the injector sizing calculators I have found only give data for naturally aspirated, supercharged or turbocharged. So I'm not sure what to go with for my setup. I was considering Daka 60's. They flow around 70 lbs at 58 psi of fuel pressure. Anyone have any incite?
TECH Apprentice
Joined: Oct 2015
Posts: 310
Likes: 24
On e I add 68 lbs per hour per 100 shot targeting 11.8 gas scale afr. Hopefully that helps you get close.
I took 80lber to roughly 850 900 hp on VPN 110 race gas, but I forgot the enrichment numbers on 110.
I would not spray at all with 93 but that's just me.
Not sure what your 450 flows but my a1000 was done in 850 900 hp range dry enrichment. Thought I would mention adding fuel pressure to increase injectors reduces fuel pump flow numbers. Might as well run bigger injectors with lower fuel pressure if possible.
I took 80lber to roughly 850 900 hp on VPN 110 race gas, but I forgot the enrichment numbers on 110.
I would not spray at all with 93 but that's just me.
Not sure what your 450 flows but my a1000 was done in 850 900 hp range dry enrichment. Thought I would mention adding fuel pressure to increase injectors reduces fuel pump flow numbers. Might as well run bigger injectors with lower fuel pressure if possible.
Thread Starter
Staging Lane
Joined: Aug 2020
Posts: 94
Likes: 10
On e I add 68 lbs per hour per 100 shot targeting 11.8 gas scale afr. Hopefully that helps you get close.
I took 80lber to roughly 850 900 hp on VPN 110 race gas, but I forgot the enrichment numbers on 110.
I would not spray at all with 93 but that's just me.
Not sure what your 450 flows but my a1000 was done in 850 900 hp range dry enrichment. Thought I would mention adding fuel pressure to increase injectors reduces fuel pump flow numbers. Might as well run bigger injectors with lower fuel pressure if possible.
I took 80lber to roughly 850 900 hp on VPN 110 race gas, but I forgot the enrichment numbers on 110.
I would not spray at all with 93 but that's just me.
Not sure what your 450 flows but my a1000 was done in 850 900 hp range dry enrichment. Thought I would mention adding fuel pressure to increase injectors reduces fuel pump flow numbers. Might as well run bigger injectors with lower fuel pressure if possible.
Hello,
I was looking for some advice on injector sizing. I found a little info by doing a search but still some things I'm not sure of. So this is my setup
-Stock LQ9 short block with new rings. Steel top ring gaped for juice.
-ported 243 heads
-11:1 compression
-Summit 8707 cam (duration 226 int./238 exh. Lift 0.600 int./0 600 exh. 113 LSA)
-F.A.S.T. LSXR 102 intake drilled and plumed for direct port dry N20
-Long tube headers 1 7/8 tubes and 3" collector
-3600 rpm FTI converter with 4L80e and 3.73's in the rear.
-58 PSI fuel pressure with Walboro 450 in tank pump
So I want to spray a progressive shot with a Terminator X. I'm trying to figure out what size injector to run. I can't get E85 in my area so I'm stuck with normal 93. I'm guessing the NA crank power would be around 475-500 hp. I want to be able to spray a 200 progressive shot.
All of the injector sizing calculators I have found only give data for naturally aspirated, supercharged or turbocharged. So I'm not sure what to go with for my setup. I was considering Daka 60's. They flow around 70 lbs at 58 psi of fuel pressure. Anyone have any incite?
I was looking for some advice on injector sizing. I found a little info by doing a search but still some things I'm not sure of. So this is my setup
-Stock LQ9 short block with new rings. Steel top ring gaped for juice.
-ported 243 heads
-11:1 compression
-Summit 8707 cam (duration 226 int./238 exh. Lift 0.600 int./0 600 exh. 113 LSA)
-F.A.S.T. LSXR 102 intake drilled and plumed for direct port dry N20
-Long tube headers 1 7/8 tubes and 3" collector
-3600 rpm FTI converter with 4L80e and 3.73's in the rear.
-58 PSI fuel pressure with Walboro 450 in tank pump
So I want to spray a progressive shot with a Terminator X. I'm trying to figure out what size injector to run. I can't get E85 in my area so I'm stuck with normal 93. I'm guessing the NA crank power would be around 475-500 hp. I want to be able to spray a 200 progressive shot.
All of the injector sizing calculators I have found only give data for naturally aspirated, supercharged or turbocharged. So I'm not sure what to go with for my setup. I was considering Daka 60's. They flow around 70 lbs at 58 psi of fuel pressure. Anyone have any incite?
