Thread: what brand and size injectors for t28/s4 combo??

That is why I posted what Miko quoted me. I have s15 injs @ 4bar.

jesus just get some evo 560's for around 50-60 bucks and a fuel rail for top feds which is also around 100. easy peasy lemon squeezy.

So,

4 top feed injs $60 each = $240

1 Fuel rail = $100

4 inj plugs ( cut harness ) = $16

Total = $356

370cc injs are maxed out at 4 bar at 290 WHP. You start running more than that and you get detonation from the mixture leaning out and you end up with pitting at the top of the cylinder walls. This will blow out the head gasket and max the block unusable.

I have seen this happen way to often.

S15 480cc injc

3 bar = 305 WHP

4 bar = 350 WHP

They drop right in for $250-$275 and there is nothing easier than that,

Yeah, thanks guys......I am going with mike on this one.... the 480's drop right in and are plenty enough fuel. Along with a z32 and my gtir turbo i should have a sweet and fast DD.

Now anybody have them for sale?? And a base tune would be nice to??

Agreed with a gt2871r i was pushing the injectors to over 90% duty cycle at 10psi. I would go with either 480's,555's or 50lb msd's.

I did exactly what you metioned with my first turbo set up. I was running a t25/28 set up and maxed out the injectors junk hg, pistons and block. When i could have avoided it by just keeping the boost down a bit, or adding some 480's.

No 50-60 for all. Injector plugs are free from any mitsu at the jayrd. Jesus it's not that hard.

I wish nissan guys would understand upping the fuel pressure isn't tuning. It's a band aid on a bullet wound.

First off getting in your car and driving to the junk yard probably cost you as much money as buying a set of inj clips.

Second upping fuel presure is not a band add. Upping fuel presure is something that the car manufactures are doing. Most car makers are now running 3.5 bar and 4 bar fuel presure.

Upping fuel presure is no diffrent than running a larger inj. Once the fuel presure is up you program your computer for this.

4 bar is better than 3 bar because of better fuel atomization which allows you to run leaner mixtures and you get better fuel economy.