I finally got my D1-SC on my 5.3L RCSB Sierra and all I can say is WOW!!

I am really happy with the way it runs now on 12 psi and 13° of timing. Now I just need posi as it completely destroys the tire.

One question I am having is that we are having trouble with tuning idle as it is dumping a bunch of fuel in at idle. I believe it has vacuum leak, but I checked all lines. I installed new 60 lb. injectors and one of them is seaping on the top (fuel rail side). It's not a big leak, but I am wondering if it is enough to cause a vacuum leak??

I hope to have pics up soon and some dyno numbers.

 

I know you

Glad to hear your well on your way, to having your truck done.
Can't wait to hear final numbers!

Take care,
Erik

 

Yes I do and thank you guys again so much for the awesome customer service!!

 

uh oh! better increase your credit limit on your CC. You have now been diagnosed with Boost addiction

 

Yeah! That's no lie. I am doing e-fans next after posi. Then headers...then probably a cam. My wife doesn't know what she has gotten herself into. LOL.