Meth Blow Speed = my life
Here is the big picture...COULD I gain more power with more ignition...probably. How much??? From the tests I have done the gains will be MINIMAL...and the risk of stressing the bottom end does not equal the power gained from pushing 3-5 more degrees of ignition.so i noticed you said you picked up 20whp with the 14gph jet and a 3 inch pulley over the 3.15 with less timing?
am i understanding this correctly that you could theoretically run more timing? and increase the gain to an even larger gap then 20whp? and yet still be safe as meth itself is like an octane booster as well as a temperature control?
i know the water is strictly for temp but meth does octane and temp correct?
water actually acts as a octane booster...check out the link I posted to AIS's website. I could run more timing, however the gains I saw on the dyno were not enough to justify stressing the bottom end of my motor. At 11psi 25/26 degrees was the max I decided to push. At 15psi (13psi with cooling) I am pushing 23 degrees...you wont see much more gains past that...and even if you do its not something I am going to recommend. The gains are not enough (3-7whp) to justify taking that risk
You can see where I mounted the T-fitting on that last picture I posted. It has the checkvalve, then the T-fitting, then it leads to the two nozzles Im running.Nice write-up!
Questions, though: Where did you wind up mounting the nozzle/t-fitting for the water/meth injection?
I would think the closer to the IM (in the plenum runners) would be optimal, but curious as to what Rodney had suggested to you, if anything.
Is the water/meth pump you are running continuous? If so, isn't it engaged as soon as you have electrical power? Are you worried about it possibly pooling up in your charge piping/IM at all?
As far as the nozzle location...with a ROOTS STYLE SUPERCHARGER...the nozzle location really doesnt matter since the supercharger is churning up the methanol and distributing it once the air is charged. I do NOT recommend placing the nozzles AFTER the blower as the pump will have to work against the pressure of the blower and you will not have the added cooling of the blower casing....so place all of your nozzles before the blower (order or location doesnt matter due to the blower distribution of methanol)
The pump I have has an internal regulator that keeps 150psi in the lines...once that pressure drops below 150psi it will "click" and re-pressurize the lines. So my nozzles are seeing 150psi of pressure all the time. I am not worried about pooling in my IM because my methanol ONLY sprays when I am at 5psi of boost and above 4100RPM, which at this point in time there is enough air moving through the motor to keep the methanol from pooling. With the amount of air that the K20 motor flows through its head with the roots style supercharger...you will not have a problem with pooling...and if you do...you will experience bogging WAY before you collect methanol in the manifold.
I actually went against the instructions for my last nozzles suggestions of using a 11/32 bit and used a smaller once since my last tap stripped...and it WORKED!! I'll try to find the size bit I used this time around, but its not really important since Im not recommending to use that kind of nozzle anyway...AIS can supply a much better nozzle and even has hex heads to allow for easy removal.How about those tapping skillzzzz and ep3 conversation..
Good work Sam.
ps. did you ever secure your nozzle? lol