I have an extra progressive controller. It's just sitting there. Looks like you had your system blow all your meth in correlation with your fueling. This is not optimal as when your revving in the box, your spraying. Burn out at stock, then turn your system on. If meth spray is correlated with boost first, fueling later, then this shouldn't happen.

To keep things simple, I'd spray into the cold side pipe of the inner cooler. The only temps that really matter, are the temps at the manifold. I haven't mapped out the induction tract for the SRT-6, but far from the TB as possible, Close to the IC as possible.

Next id figure out how much boost the SRT6 can manage on 106 octane.

I would tune for that and ignore AFR because O2 sensors (on my old car) didn't read the methanol as fuel. Is the SRT6 open loop or closed loop fueling??? (adjust fuel injection based on AFR readings = closed loop.

Finally, I'd set meth to inject at 60% capacity at 75% of max stock boost. (16-17 psi is max) so Id start to spray around 12 psi.

Set the controller to spray 100% capacity at 21 or 22psi (rentech kit max boost)

Safety would meter flow at nozzle and when flow is not to spec, then boost controller (ie tune) would only allow for stock boost pressures. When flow is at spec, tune would recognize this and allow the system to keep pushing the envelope.

Next, a float meter, or a monitor for the meth tank. When the tank get below 1/4 tank, the system would only allow for stock boost.

The practical application becomes tricky when you change out the size of your pulley. ( we didn't have a pulley in our applications so we just had 2 turbos that would blow as hard as you ask them too. ( when I got out of that car, we had just had a company redo our turbos with bigger fan blades..... essentially more boost with the same input to the turbos (similar to having a smaller sc pulley).

If there is a tune that adjust for the smaller pulley already and there are maps for pump gas and race gas, with just a little tweaking, we should (at this forum) be able to produce race gas results on pump 93. Also the lower intake temps often tell the motor that more boost is ok. A colder range of plug would benefit and any nos use would be magnified as well.

Cold air intake won't be necessary, a short ram air intake would reduce any restriction.

how does that sound???