Need help with Fuel!!!!

[TSI_AWD_95]

Ok i would like to know what are the biggest injectors the Apexi super AFC can control. I have a 95 Talon TSI, with a t3/t4 turbo, with a metal head gasket, after market exhaust manifold, stage three racing clutch 3" catback exhaust and i can get either 680 or 720cc injectors for free from a friend...I'm lookin to run hi boost so can someone help?

 

[delta448]

Have you considered using a keydiver chip? -You should already have an eprom ecu, so it'd be cheaper for you. I learned a lot about the possibilities a chip has from this thread.

I believe that 650's on an SAFC is about as high as you'd want to go. There are a few people on here running 650's and SAFC, Tyler Webb(CanadianTSi) for one, has made very close to 400whp on that setup.

 

[TSI_AWD_95]

Thanks man, I thought 720's would be a lil big

 

[TSI_AWD_95]

And yes i did but I read up on the forum there, and it seemed like those messed up quite a bit so i thought a DSM link would be a safer way to go...but i'm still thinkin of takin the risk but not sure.

 

[FORMONTOYA]

i thought a DSM link would be a safer way to go...but i'm still thinkin of takin the risk but not sure.

DSMLink would be the easier way to go, and probably safer if you are new to tuning. The SAFC uses airflow as a means to adjust the injectors. The problem with that is with the airflow adjustments comes unwanted timing adjustments as well. While DSMLink adjusts fuel independent of timing. Complete with a great logging package and a slew of "bells and whistles" that make it a joy to tune with. Worth every penny IMO. If you go DSMLink, I would suggest at least a set of 850s, you can never have too much fuel available, plus you're already set when the bigger turbo hits the list.

Yes, 650s/680s are really the max you want to try and tune with a SAFC. Some have gone with higher injectors, but you really need to know what you're doing to go higher. Before you tune, get a logger if you don't already have one.

 

[TSIMonsteR]

Go DSMLink since you already have an eprom. This is the best bang for buck option you have.