Jump to content
SAU Community

Recommended Posts

hey guys

just wondering, is there a table or conversion method to work out what size injectors can support what power (hp)?

i did a quick search and it has been suggested that 1cc supports roughly 1hp, so 700cc inj supports around 700hp

some1 also came up with; cc x 6/5 = hp (700cc x 6/5 = 840hp), which seems quite high

please confirm :)

cheers,

Andy

Edited by andz
Link to comment
https://www.sau.com.au/forums/topic/200355-injectors/
Share on other sites

stock gtst injectors and a FPR will do 250rwkw

well i've already bought the injectors and fuel pump, and i want some breathing room in the event that the high flow makes much less than 250rwkw and i get bored and decide to strap on a bigger turbo :( . but i wouldn't be aiming any higher than 280rwkw, cause i can't afford a rebuild :) . so the 440cc injectors should still be up the task

Link to comment
https://www.sau.com.au/forums/topic/200355-injectors/#findComment-3565475
Share on other sites

so why is it that i've read articles in hpi etc that have cars with a power output of about 500rwkw but they're using 1600cc injectors?? do injectors still work accurately even when they're being used below the level they're designed for?

Link to comment
https://www.sau.com.au/forums/topic/200355-injectors/#findComment-3570780
Share on other sites

Personally I would not want to be using any injector (or fuel system for that matter) at more than MAX 85% of its capacity. In case shit happens, it is probably a good insurance. (having said that how anal and redundany you want / need to be with your fuel system depends on what what your doing with the vehicle and how far you want to take things), $$$ add up quickly :D

Link to comment
https://www.sau.com.au/forums/topic/200355-injectors/#findComment-3570862
Share on other sites

yea mate but how many 1600cc squirters are they using??

many racing/high performance cars use big injectors to suppliment their apetite. they are called 2ndary injectors. and it is very common in rotors. e.g. they may be using a few 500cc injectors then use a couple of 2000cc injectors to beef up the support.

i personally dont know y they do it. perhaps using all 2000cc squirters may be too expensive or inefficient....

im sure someone on here might know?

Link to comment
https://www.sau.com.au/forums/topic/200355-injectors/#findComment-3571162
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • just an update to this, poor man pays twice  Tried sanding down the pulleys but it didnt do the trick. Chucked another second hand alternator in the na car which I got for free off my mate and its fixed the squelling. Must have been unlucky with the bearings.    As for my turbo car, I managed to pick up a cwc rb alternator conversion bracket + LS alternator for 250 off marketplace, looked to be in really good nick. Installed it , started the car and its not charging the battery.... ( Im not good with auto elec stuff so im not sure if this was all I needed to do but I verified such by using a multimeter on the battery when the engine was running and I was only getting 12.2v )   I had to modify the earth strap for the new LS alternator , factory earth strap was a 10mm bolt which did not fit the bolt on the LS alternator which was double the size so I cut it off , went to repco bought some ring terminals that fit, crimped it onto the old earth strap and bolted it up to the alternator , started the car and same issue. Ran like shit and was reading 12.2 at the battery.  For a "plug and play" advertised kit thats not very plug and play but alas.  My question is , am I missing something ? Ive been reading that some people recommend upgrading the stock 80 amp alternator fuse to a 140 amp but I dont see how that would stop the alternator charging especially at idle not under load.  Regardless ive pulled it out and am going to get it bench tested by an auto elec tomorrow but it would be handy to know if ive missed something silly or have done something wrong.   
    • My wild guess is that you have popped off an intake pipe....check all of the hoses between the turbo and the throttle for splits or loose clamps.
    • Awesome, thanks for sharing!
    • To provide more specific help, more information is needed. What Android screen? What is its wiring diagram? Does the car's wiring have power at any required BAT and ACC wires, and is the loom's earth good?
    • So, now all you need to do is connect the 2 or 3x 12v feeds into the unit to permanent 12v, ACC 12V and IGN 12V that you can find in the spot behind the stereo, and the earth, and then it will switch on with the car.
×
×
  • Create New...