Anyone know the difference in the 2? Just wondering which one I need with the LS swap.
Where's a good place to purchase?

 

Are you running a 4th gen tank or third? I got plastic 4th gen tank for mine and the correct pump for it, then re wired the hotwire kit to work with the thirdgen wiring.

 

I'm using a 3rd gen tank/sender. Was wondering if I needed the TBI or TPI. I guess it's the TBI but wanted to make sure before buying

 

I'm not even seeing a TBI kit on the racetronix site. But either way as long as the pump that comes with it has enough pressure and flow for your application you should be fine.

Hanger assemblies are the same, but STOCK TBI and TPI pumps flow different. If you have a stock TBI pump it will not support an LS, the TPI pump supposedly will support a stock LS1 engine. I assume an aftermarket performance pump for either should be fine. The TPI kit I see on the racetronix site sais it flows 255lbs/hr and will support 600 hp at 43 psi which should be plenty for a decent build.

 

I may be losing my mind. I thought I saw a different part number for the TBI cars but I didn't see it either. I'm just going to buy a TPI harness.

Thanks

 

That should work. The hotwire kit should snap right in too if you want to use that. You will just have to connect the fuel pump command from the LS computer, but you can do that inside the car too.