5.3 Build, Injectors?
Thread Starter
Teching In
Joined: Sep 2014
Posts: 25
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5.3 Build, Injectors? motor spec:
Comp Cams XR275
918 Springs
PRC 60CC stage 2.5 heads with 2.02 intake valves
Speed pro flat tops
Double Roller Comp chain
GMPP ported oil pump
Balanced Bottom end
Clevite Bearings
Sealed power rings
Patriot E-rod Headers ( chassis clearance)
FItech ULTIMATE LS engine controller
Walboro inline pump and corvette filter/regulator
summit stock lifters
Comp .080 magnum 7.3" push-rods
truck intake with return-less rail
cable TB
The final issue... Injectors? Am i correct assuming the stockers will in no way keep up?
Looking at the DW 44 or 60Lb/Hr direct fit truck injectors.
Comp Cams XR275
918 Springs
PRC 60CC stage 2.5 heads with 2.02 intake valves
Speed pro flat tops
Double Roller Comp chain
GMPP ported oil pump
Balanced Bottom end
Clevite Bearings
Sealed power rings
Patriot E-rod Headers ( chassis clearance)
FItech ULTIMATE LS engine controller
Walboro inline pump and corvette filter/regulator
summit stock lifters
Comp .080 magnum 7.3" push-rods
truck intake with return-less rail
cable TB
The final issue... Injectors? Am i correct assuming the stockers will in no way keep up?
Looking at the DW 44 or 60Lb/Hr direct fit truck injectors.
Thread Starter
Teching In
Joined: Sep 2014
Posts: 25
Likes: 0
I have 2 motors, ones an 02' ( the one that is described above) and ones an 04' I could harvest the 04 injectors if they are bigger... How do i tell?
Denso 42 .lbs Hi Nathanl, I can supply eight Denso 42.lbs fuel injectors for your requirement.
Their cost is very fair AND they are a flow matched set with a dead time sheet.
Lance
Their cost is very fair AND they are a flow matched set with a dead time sheet.
Lance
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Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Technically, yes. The issue with reusing old injectors is that you don't know what kind of shape they are in. I grabbed some flex injectors a few months ago and flowed them on my flow tester. 2 were completely clogged, the other 6 had as much as 50% variation.
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Thread Starter
Teching In
Joined: Sep 2014
Posts: 25
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OK so im running the flex injectors and its doing pretty well, I get an occasional issue where the motor is screaming along, COme into a tight section of track and it just bobbles and chokes even with the throttle on the floor.. Like its way lean or way rich... Pumping throttle does nothing, and then boom 5 seconds later it clears up and takes off... Im wondering if i dont have the injector flow rate correct in the ECM... Im running the Vette filter, With the single returnless port on the fuel rail.. Can anyone tell me what the CORRECT flow rate for these injectors is at my Rail pressure?
Denso 25326903
Denso 25326903
On The Tree
Joined: Aug 2018
Posts: 182
Likes: 22
From: Tempe, AZ
OK so im running the flex injectors and its doing pretty well, I get an occasional issue where the motor is screaming along, COme into a tight section of track and it just bobbles and chokes even with the throttle on the floor.. Like its way lean or way rich... Pumping throttle does nothing, and then boom 5 seconds later it clears up and takes off... Im wondering if i dont have the injector flow rate correct in the ECM... Im running the Vette filter, With the single returnless port on the fuel rail.. Can anyone tell me what the CORRECT flow rate for these injectors is at my Rail pressure?
Denso 25326903
Denso 25326903
TECH Enthusiast
Joined: Nov 2017
Posts: 661
Likes: 91
From: S.F. East bay
Is that 43lbs fuel pressure like the average for the engine to run as opposed to the 58psi that were all thought to running at...........cause I noticed on my nova I get 54/58psi. In my c10 I get about 46/50psi...both have same identical intake's and fuel systems (pumps ).....they both seem to run fine
On The Tree
Joined: Aug 2018
Posts: 182
Likes: 22
From: Tempe, AZ
Is that 43lbs fuel pressure like the average for the engine to run as opposed to the 58psi that were all thought to running at...........cause I noticed on my nova I get 54/58psi. In my c10 I get about 46/50psi...both have same identical intake's and fuel systems (pumps ).....they both seem to run fine