Some injectors are not too compatible with methanol, you’ll need to dive in to that along with the all the other components. The factory DI’s can probably handle some amount of methanol but I don’t know about 100% and you probably won’t find anyone who has experience with the HPFP living with it to give you comfort there.
I would run the smallest injector I needed, which brings about many compromises with your future plans. I don’t know anything about reflex, but I would hope you could ramp in the PI at a MAP and RPM of your choosing. This being possible still doesn’t remove all the issues with injectors that are too big. There is a balancing act between ramping them in gently and getting past their non-linear characterisation curve. Leaving DI to clean everything up is still an event that happens after the fact so phasing in big injectors without an integrated ecu is not ideal.
I don’t think it’s worth learning these lessons in round one, you might end up with a perpetual garage / workshop ornament. Which is always a high risk with an n54 to start with. One alternative I would consider is leaving the fuel system similar to factory for now and get a good direct port meth/water system from aquamist. You can then run 98 or 98 with about E20 for instance and water/meth direct port and it’s the least fking around and hassle getting everything to integrate on the fuelling side. Then you can be at the track the earliest enjoying the car and solving all other inevitable issues that will come up. If you later decide to go stand alone and purpose built methanol car all of the decisions are a lot easier because you have a clear objective at that point.
I have a jb4 in my garage somewhere you can have for a slab of beer, ½ price rrp, or whatever you feel like donating from one money pit to another. I might have a blue tooth adapter as well and some other sh8t I don’t need.
This is a designated drag car that happened to just be road registered (atleast until to police tell me it’s not anymore
) Methanol will only be ran at instanced while we are pushing things down at the track and will then be flushed out with e85 so it’s not left sitting and e85 will be ran at all other instances.
I think straight methanol with the 10.2 to 1 compression should work really well allowing timing to be turned up a bit along with the massive charge cooling (I could probably even delete the Intercooler if I was running meth only which is common practice) which will be a benefit in out heat.
I don’t want to be spending money going doing multiple renditions of fuel systems or any systems, the whole idea with the build is do it once, do it right. Hence a 13ish grand trans (cost me 11 in the end) that’s rated for 1500hp when I probably could have got a 8-9k trans that would have worked fine for now.
The fuel system I have planned out is all 100% methanol safe with only unknowns being HPFP and index 12s but both should be fine if flushed properly after and not used for extended periods of time like daily driving on meth.
I bought this car for it to be a drag car, partially for self preservation of my licence but also because I wanted something different, a little crazy and extremely raw. This car is being built to go fast and nothing else, I knew I’d run the risk of it sitting for extended periods with a hectic built like this as I am in some what uncharted territory but that is also one thing I like about the build. I did purposely build the driveline first and not the motor though so that If worst comes to worse I have a rolling shell that we can always swap a proven power plant into and go fast.
I’d be very keen on that JB4 mate. What ever payment methods suits you. I do have a 27mm white line front sway bar that I ordered instead of a rear and a front sway bar is just extra weight as far as a drag car is concerned so I’ll be deleting mine. If you were interested in that along with a set of spare d-bushes then I’d be happy to swap that if not fine with whatever $$ value suits you or your drink of choice.
