Double pump/line/nozzle thought.

[StealBlueSho]

Then I would recommend running a conservative tune with one pump so if it fails then you don't need the meth to prevent engine failure...

The Alky Tune that LMS sent me is setup this way... its conservative enough that I could technically run the Alky tune without Alky... I would just have the knock sensor pulling spark... not the best way to run it.. but it would run fine... my oar would change eventually to a lower spark scaling...

[TopherSho]

The answer is not a simple one.. or maybe it is? If your tuned and maxed out for the amount of meth being injected with two pumps, your car is reliant on that flow of meth... if one pump fails, most likely you will experience an adverse reaction to the lack of supplied fuel...

If you are running a conservative tune, that doesn't require the knock suppression that two pumps are providing via meth, then one failure will not cause a problem... since your not maxed out...

Make sense?

It's the same principle as one pump... if you are tuned to rely on the meth for fuel and knock suppression and it the pump dies, you are relying on the ECU to pull spark fast enough to preserve the engine. The same could be said if you are running two pumps...

The answer is not a simple one.. or maybe it is? If your tuned and maxed out for the amount of meth being injected with two pumps, your car is reliant on that flow of meth... if one pump fails, most likely you will experience an adverse reaction to the lack of supplied fuel...

If you are running a conservative tune, that doesn't require the knock suppression that two pumps are providing via meth, then one failure will not cause a problem... since your not maxed out...

Yes, that's where I was going with this.

If you are going full fail-safe mode,  it is not a bad plan at all 50% meth is better than no meth on a meth dependent tune...  I approve of the idea. (Im a software support guy,  redundancy appeals to me)