Just wondering what most people are doing as far as fuel lines go to their ls motor. I see Hawks sells some adapter lines so you can use your regular lines which looks real simple but a little pricey. Wondering if you guys are using the Hawk lines or what else you might be doing.

 

you'd probably have more responses over in the LSx swap forum, but I ended up making my own braided lines. however, my car was a factory carbed car, so all the lines would have needed to be replaced anyway. you can make your own adapters pretty easily at home, there's a pretty good chart made by Pocket that shows all the part numbers you should need.

 

https://www.thirdgen.org/forums/post...01-post17.html

If your RS is TBI, you need to read the part with the buffer box too

 

Yes it is a tbi. I will take a look at that. What's the original purpose of the buffer box. Thanks Pocket

 

Older ECMs were too dumb to decode the VSS signal internally(TBI ECMs are a layover of the old stuff), so the external module does it for them and splits the signal into a 2000ppm and 4000ppm stream for different functions. When swapping in a LT1/LSx, the new PCM is fully capable of decoding the raw VSS data so the box needs to be removed and a bridge inserted to complete the circuit from PCM to cluster

In a nut shell, your speedo wont work unless you bypass it