when do I upgrade injectors/fuel pump?
07-05-2005, 05:57 AM
#2
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You need to be a little more specific...Like what are your plans/mods. N/A power? FI power? 400 rwhp is a good rule of thumb for fuel injector upgrade, but all depends on where your power level falls.
07-12-2005, 01:33 PM
#3
sorry
I have a 3500 stall Automatic 98 camaro
I believe it has stock 28lb injectors.
engine mods are:
347 shortblock
stage 2.5 5.3 heads
MS3 cam
Z06 MAF
Lid
LS6 intake
Pacesetter Long Tubes
Duel race mufflers
!Cats
!EGR
!AIR
!Thermostat
I have not recieved my engine, heads, or cam yet I'm just wondering should I upgrade the Fuel pump and/or Injectors at this point.
Old setup:
stock 346 shortblock
stock heads
TSP 231 237 cam
Z06 MAF
Lid
LS6 intake
Pacesetter Long Tubes
Duel race mufflers
!Cats
!EGR
!AIR
!Thermostat
I have a 3500 stall Automatic 98 camaro
I believe it has stock 28lb injectors.
engine mods are:
347 shortblock
stage 2.5 5.3 heads
MS3 cam
Z06 MAF
Lid
LS6 intake
Pacesetter Long Tubes
Duel race mufflers
!Cats
!EGR
!AIR
!Thermostat
I have not recieved my engine, heads, or cam yet I'm just wondering should I upgrade the Fuel pump and/or Injectors at this point.
Old setup:
stock 346 shortblock
stock heads
TSP 231 237 cam
Z06 MAF
Lid
LS6 intake
Pacesetter Long Tubes
Duel race mufflers
!Cats
!EGR
!AIR
!Thermostat
07-13-2005, 07:41 PM
#4
The real way to tell is to log the car once it's running to see where the milliseconds are on the injectors at WOT ( autotap , hptuners etc. ). In the PCM/tuning section is a guide and some excel spreadsheets that will help.
For the pump , get a mechanical gauge and hook it up to your hood so you can see it while driving. At idle it should be 58-60 and at WOT you probably don't want it to go below 54-55. If it does, time to upgrade.
FWIW on your setup I believe you may max out the injectors; what year is your car?
See my sig below; I just picked up 42lb injectors and after getting them in I plan on doing the gauge as described above.
For the pump , get a mechanical gauge and hook it up to your hood so you can see it while driving. At idle it should be 58-60 and at WOT you probably don't want it to go below 54-55. If it does, time to upgrade.
FWIW on your setup I believe you may max out the injectors; what year is your car?
See my sig below; I just picked up 42lb injectors and after getting them in I plan on doing the gauge as described above.
07-15-2005, 04:37 PM
#7
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Originally Posted by Hennytime
you have 26's stock, only 02's have 28's stock...i think
Can anyone confirm this? I was under the impression that 98-99 had 28lbs stock and the 00-02 had 26lbs.... Does anyone have some hard data, because now I'm confused.
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07-15-2005, 05:49 PM
#9
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Originally Posted by code4
I was told all camaro ls1's have 28s except for 1999.
