SmokinJoe

What sort of advantages would you get out of this?

scathcart

You would have the fuel available should you need it (nitrous, or bridgeport would require extra fuel flow).

The problem is it will over-run the FPR at idle and low loads, and cause the car to run rich and compound an already problematic carboning problem.

The TII's run the same FPR, but use a circuit to lower pump output at low load and idle.

You could buy a new, aftermarket FPR, or attempt to swap in the circuitry from a TII, but you really have to ask yourself if this is a worthwhile mod. Do you need the extra flow?

1FastT2

iTrader: (1)

Its a waste of time IMO. If your thinking of upgrading go with a Walbro, you can get one for under $120 shipped to your door.

Bambam7

It shouldn't run rich at idle with a TII pump. The pumps put out the same pressure- check the stats in the service manual.
N/A: 64-85 is normal
TII: 71-92 is normal.

Howevere, a walbro will cause rich idle, but that can be fixed with an S-AFC, or to a cretain extent, turning the L-R idle adjust screw. (Only on S4's)

There are only a few psi differences in the extreme values of the NA and TII pumps.

Also, the resistor relay is there not for any sort of performance or mixture control, but to enhance pump longevity by reducing voltage (to around 9 I think) whenever the pump isn't needed at high capacity. The absence or presence of it won't make any difference in fuel mixture.

There is no reason to do this on an N/A at all, unless you are putting out more than 250 hp. (If you are not sure if you are near that HP, you are almost definatly not!) Unless you have a bridgeport or PP, you won't need it. (No street port engine would- NA engines make more power by running a LOT leaner than a turbo engine would)
A big shot of nitrous might require it too...

BlackRx7

yo bam hows that water injection worikng out? I just got an MSD kit off ebay for 96 bucks!