keydiver safc and larger injectors

[gorf]

I currently have 560 injectors and a keydiver chip. I have a set of 780's on the shelf. I know everyone says that with an safc you can only go to 650 injectors. However I am starting at fuel maps for 560 the 780's are about the same 200cc larger as 650 over 450's.

If I put the 780's in, will I have any trouble controlling them with a safc?
As far as timing would there be any advantage of using the larger injectors and controlling them with the safc?
Or would I be better off just getting Jeff to burn me another chip?

[spyderturbo007]

It's definitely worth the $20, or so, that Jeff charges for a revised chip. If you install them and then compensate with the SAFC, you'll be stuck with inflated timing numbers. Personally, I prefer higher boost over higher timing, so the best decision would be to have another chip burnt. Just remember, if you are looking for higher timing, you can always have Jeff change the stock map.

[steve]

Originally Posted by gorf

Or would I be better off just getting Jeff to burn me another chip?

Much better off having Jeff reburn the chip.

[marshall]

maybe not the "right" way to go, but I had just a S-AFC controlling PTE 1000cc injectors on my old car. no chip, MAF-T set to 0 correction.