larger fuel injectors and fuel pump for procharger
#1
larger fuel injectors and fuel pump for procharger
can someone point me in the right direction so I can upgrade my ls1's fuel injector and fuel pump...Whats a good place that makes aftermarket injectors and pumps that will compliment my procharger setup that I will be getting(9 pds of boost)
#3
what size is our stock fuel injectors?..but more importantly im getting a procharger(9pds of boost); what kind of numbers (lb/hr) should I be looking for when getting an aftermarket fuel injector???
#7
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I have a set of used 42.5 SVO injectors for sale for $175 if you want them. They were in my car with the same setup for less than a year. Got a bigger supercharger now i don't need them anymore. PM or call 262-751-9439 (Sprint Cell)
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#10
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I have a set of 50"s for $250 shipped , If you are intrested let me know!
https://ls1tech.com/forums/lsx-parts-sale/338541-f-s-50-fuel-injectors-high-impedance.html
Lata, Ark
https://ls1tech.com/forums/lsx-parts-sale/338541-f-s-50-fuel-injectors-high-impedance.html
Lata, Ark
#11
yea im intrested...what will the big difference be between 42#, 50# and 42.5#...their both SVO's and will they fit the same as 42#. I know their is more flow the higher up you go but im wondering on the lines of instillation, tables, and computer programing
thx
thx
#12
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Any Time you swap injectors you will need to have the program changed to run them properly. They will fit exactly as your current injectors fit. You just remove the old one and pop in the new ones. They are a direct swap! AS for the diff > Larger injectors will support more power and flow more fuel! Someone correct me if I am wrong. Let me know if you have other questions? Thanks, Ark
#13
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Not to kill anybody's sale but the Delphi Multec 1 (MSD/Holley) 50's are not a good choice when using the factory LS1 PCM. They do not get along together and for most people are next to impossible to tune. We never recommend the Delphi 50 for LS1 PCM use. The 42's are the largest hi-z injector Delphi makes that is compatible with the LS1 PCM. The next step up from 42's would be Siemens 3172's or L107's.
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#14
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Originally Posted by Racetronix
Not to kill anybody's sale but the Delphi Multec 1 (MSD/Holley) 50's are not a good choice when using the factory LS1 PCM. They do not get along together and for most people are next to impossible to tune. We never recommend the Delphi 50 for LS1 PCM use. The 42's are the largest hi-z injector Delphi makes that is compatible with the LS1 PCM. The next step up from 42's would be Siemens 3172's or L107's.
Gary
#15
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Originally Posted by red ws6 99
The msd 50lb injectors are not that hard, although compared to most injector not that fun. It just takes some tweaks to the injector timing tables since they take twice as long to open as stock injector. Plus the flow rate increase is not linear with pressure increase above 43 psi. It just took me a little digging on the LT1 boards to get the injector timing constants (basically the same as 42 lb lightening injectors). But basically if you have choice go with something else since they are expensive and will take a few a hours to get dialed in (street tuning).
Gary
Gary
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#16
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Motron 60's are working great for me.
Still getting 19/20mph in commute traffic and high 20's on the freeway.
42's should work great for 9psi on a stock motor but if you think you will ever itch for more power your going to be buying twice cause your going to have to step up in size.
Still getting 19/20mph in commute traffic and high 20's on the freeway.
42's should work great for 9psi on a stock motor but if you think you will ever itch for more power your going to be buying twice cause your going to have to step up in size.
#17
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The msd 50lb injectors are not that hard, although compared to most injector not that fun. It just takes some tweaks to the injector timing tables since they take twice as long to open as stock injector. Plus the flow rate increase is not linear with pressure increase above 43 psi. It just took me a little digging on the LT1 boards to get the injector timing constants (basically the same as 42 lb lightening injectors). But basically if you have choice go with something else since they are expensive and will take a few a hours to get dialed in (street tuning).
Gary
Gary
#19
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Not to kill anybody's sale but the Delphi Multec 1 (MSD/Holley) 50's are not a good choice when using the factory LS1 PCM. They do not get along together and for most people are next to impossible to tune. We never recommend the Delphi 50 for LS1 PCM use. The 42's are the largest hi-z injector Delphi makes that is compatible with the LS1 PCM. The next step up from 42's would be Siemens 3172's or L107's.
We now offer 48lb/hr disc injectors which are the same as the popular 42's with increased flow:
http://www.racetronix.com/INJL48.html
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#20
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A 2005 thread/post. Wow, time passes quickly!
We now offer 48lb/hr disc injectors which are the same as the popular 42's with increased flow:
http://www.racetronix.com/INJL48.html
We now offer 48lb/hr disc injectors which are the same as the popular 42's with increased flow:
http://www.racetronix.com/INJL48.html