Just recently found out GM used several different sized gas fuel injectors! You shouldn’t mix & match part numbers here’s why: 1999 Gas 4.8/5.3 has 21.8# 58 psi 1999-2000 4.8/5.3/6.0 24.8# 58 psi 2001-07 Gas used 25.2# 58 psi 2002-07 L59 flex 33# only 50 psi This information explains why people are having different flow results with their decapped truck injectors. The part numbers need to match and the later models will flow more. Similar issue with the LS1 & LS6 injectors based on year. 👍
Great job doing the test , I'm using you test to make a decision on what can of injectors I'm installing on my ly6. None decap flex fuel should be good to my proyecto. Thanks for the video
I have seen some people doing the test with just dc no pulse so thats good but you need a timer that is going to be constant and also i believe they have a screen that is replaceable in them that should probably e replaced
thanks man for sharing your experiments, i have question about the rpm and its equivalent pulse rate, so if my idle speed about 650 rpm what is the frequency or how can i adjust the pulse rate of the injectors under test is there any chart or table for this calculation without going to the complication of horse power calculations.
after decaping the injector before putting them back on the intake/fuel rail do you put the little black plastic cap back on the injector or do you just install them without it but with the oring only?
Did you end up trying it? Did you ever get an answer to this question on any forum or from a21bravo? I have flex fuel as well but never run E85 in part because it is hard to find. But I was told not to use "regular" fuel injector cleaner on flex fuel systems. But I can't even find an fuel injector cleaner specific to flex fuel systems. Interested to know if you can shed any light on these issues.
Spray pattern isn't worth all that much. The fuel heats up and vapourises as it enters the port and back of the valve. Then as long as you have enough spark in the cylinder you can light off a garden hose injector.
when fuel is injected wont the spray patter be broken by the inside of intake?? like the injector will spray and run along the walls?? so who gives a fuck about a spray pattern?
J Dizzle Cheap way to increase injector flow rate for forced induction (Turbo etc)... Sets that flow equivalent to these can cost $600+... This is basically free with some elbow grease.
Looks like the same damn spray pattern to me. Lol I've been waiting for the results for the flex fuel injectors. Thanks and good job testing
"Like you just woke up". lol. Nice testing.👍
Dude! Hella savage seeing another hot-rodder trying hho fueling. Been experimenting with my turbo crown vic.
Looks like Decapped flows more than not decapped. Great Video keep them coming!
SUBSCRIBED! Great video man keep it up
Just recently found out GM used several different sized gas fuel injectors! You shouldn’t mix & match part numbers here’s why:
1999 Gas 4.8/5.3 has 21.8# 58 psi
1999-2000 4.8/5.3/6.0 24.8# 58 psi
2001-07 Gas used 25.2# 58 psi
2002-07 L59 flex 33# only 50 psi
This information explains why people are having different flow results with their decapped truck injectors. The part numbers need to match and the later models will flow more.
Similar issue with the LS1 & LS6 injectors based on year. 👍
Awesome tests!!!!! I'll be decaping my injectors. Soon I'll be turboing my 01 Silverado.
Brian Dudra sweet
Great job doing the test , I'm using you test to make a decision on what can of injectors I'm installing on my ly6.
None decap flex fuel should be good to my proyecto. Thanks for the video
Definitely the same pattern.. Decapped FTW!
"Like you just woke up". LMFAO! I hate that little "side-stream". Always happens right after I clean the bathroom.
Nice work.
You have serious effort in this business!!!
Wondering what would I need to do if converting 02' LR4 4.8 to flex (N/A)?
Like you just woke up lmfao !!!!
Cool test !
Sprayed like it just woke up had me 😆 🤣
I have seen some people doing the test with just dc no pulse so thats good but you need a timer that is going to be constant and also i believe they have a screen that is replaceable in them that should probably e replaced
Put some injector cleaner in your tank and cycle them?
How do you decap the Flex Fuel injectors? I have a set and would like to decap them.
I'm in the market for a set of 8 decapped injectors with an ev6 or ev1 connector so you have a web sight or know where I can buy some...
www.huntertuned.com
How reliable is it running decapped injectors on a DD?
freddy martinez Very, but I'd recommend having them flow tested to match.
Like your channel how much do you charge for the 2002 chevrolet silverado with the 4.8 injectors and your location and address sir
I dont do them, but my buddy does.
Huntertuned.com
The spray pattern isn’t going to matter since the spray will only be a couple of inches long once the injectors are installers
thanks man for sharing your experiments, i have question about the rpm and its equivalent pulse rate, so if my idle speed about 650 rpm what is the frequency or how can i adjust the pulse rate of the injectors under test is there any chart or table for this calculation without going to the complication of horse power calculations.
Do the newer 2010-2014 ls injectors work in the older truck intake?
after decaping the injector before putting them back on the intake/fuel rail do you put the little black plastic cap back on the injector or do you just install them without it but with the oring only?
Yes pintle cap stays on.
@@BlaserBuilds thanks
Do you have to put that black plastic piece back on ??
Looks like a spray pattern to me. just more of the same... they're not horrible but yet they're not great... acceptable I would guess.
what would happen if i pit a non felx fuel pump in my flex fuel suburban? i do not run e85 at all
Did you end up trying it? Did you ever get an answer to this question on any forum or from a21bravo?
I have flex fuel as well but never run E85 in part because it is hard to find. But I was told not to use "regular" fuel injector cleaner on flex fuel systems. But I can't even find an fuel injector cleaner specific to flex fuel systems. Interested to know if you can shed any light on these issues.
The pumps are different so u can't. I use sea foam and never have any problems
So the factory saves more gas ? And the two outer ones waste more gas ?
Decapping is a free way to run a bigger injector for a forced induction set up. Some injectors this size equivalent can cost up to $600.
Are you running a 50% duty cycle on the pulsed test?
I believe it was around 45-50hz cycles per second.
Spray pattern isn't worth all that much. The fuel heats up and vapourises as it enters the port and back of the valve. Then as long as you have enough spark in the cylinder you can light off a garden hose injector.
Decapped is not as well atomized
So if I'm switching from stock truck to the flex fuel injectors what do I need to do in HP tuners on flow rate?
Decapped truck to decapped flex?
@@BlaserBuilds just stock to stock. Haven't decap them yet
Just changing to flex fuel for more flow
@@gearheadhuff7853 Should be 33lb instead of 25lbs.
@@BlaserBuilds getting some that says stock flex fuel but 42 lbs/ hr but yes my stock ones are 24.8 lbs/hr not sure if flex fuel data correct.
There isn't that much of a difference, considering they are flowing more fuel,
when fuel is injected wont the spray patter be broken by the inside of intake?? like the injector will spray and run along the walls?? so who gives a fuck about a spray pattern?
CHEVSTANGLEBERRY
HunterTuned Thought you'd like it... lol.
If I decap a flex injector can I still run e85 ?
Duuuuuuubhhhhhhhh
This is lots of fuel
to much fuel with decapped ... why do i need tht much gas going into the piston? i dnt think it will run better
J Dizzle Cheap way to increase injector flow rate for forced induction (Turbo etc)... Sets that flow equivalent to these can cost $600+... This is basically free with some elbow grease.
J dizzle Gas into the piston lmao dummy
you have to set the injector attributes in the ECU for lbs/hour. The ECU will then adjust how long an injector is ON.
Boost boost boost!!!!!
Will the denso flex fuel injectors fit a non flex fuel rail and intake?