Hello,
I have a 89 s5 13bt motor with a knight sport turbo on it. And it still has the factory turbo injectors and I was wondering if I could use those with a external injector holder that has two 700cc injectors in it. If that would keep my motor from running lean. I still don`t know what boost I want to run. Here is a picture of it. Also has any body used something like this, and how would I hook the injectors up, I am using Haltech E8 with factory harness. Also How would I hook the fuel lines up to the injectors?


Thanks

 

I think the way it's usually done is by splicing into the secondary injector wires. But injectors mounted there are really inefficient, so you'd be better off buying a set of four 720cc injectors to replace the stock 550s. A knightsports turbo is typically a small hybrid of some sort, so you should be able to meet your fuel needs with 720s and a bigger fuel pump. You won't know until you have some wideband readings, so start with very low boost and adjust up.

 

like rotary rocket said, those aux fuel injectors typically dont give great results( just going by hearsay, never used any). also, just like rotary rocket said, the knightsport hybridis rather small, you might not even need 720cc's in the primaries, but i would def run them in at least the secondaries, with a walbro or equivalent, and a wideband. of course you also will need some sort of control over fuel (safc or rtek would be the easiest/cheapest)