Forum,


Does increasing boost significantly lean AFRs? I haven't noticed anything but I want to ask any pros trolling out there. Also, if it does and say the ECU goes to comp for the lean condition how much IDC past 99% can the stock injectors go before they are useless. I know they are scaled a bit lower for buffer but is all the buffer necessary?

 

Seems to me like you either need larger inj.

What cc inj, fuel pump and fuel would be nice to know.

 

Stock injectors but I have a walbro fuel pump. Just saving and researching injectors now. I'm going to get them just want to make sure I get the right size for my goals. I'm almost at 400 hp.... so close. That's all I want to hit and then it's all cosmetics from there

Right now I'm at 370 hp; (I know the sig says 360 lol) I'm hesitant to increase boost until I I'm sure that I can go into that buffer I mentioned that is of course unless more psi will not do anything to my afr. I'm doing 11.1 at redline.

 

Buy some Fic High Z 1100's, those would be great for what your wanting to do. On 93 Octane you could get away with some 770's, but personally the 1100's are a great injector.

 

I got PTE 1200 the work very good.

 

Increasing boost by let's say 2-3 psi you wont see significantly lean afr but 5 or more it will lean out.i have 1000 cc my idc was 105% at 30 psi.

 

How long did you run it like that?