Not to flame, but I would expect someone that used to build motors for bikes or anything to give better advice for raising compression rather than milling the head. Higher compression pistons perhaps.

 

that is insane

 

kcevo- see the smiley face- you are right - im a dumb ***.

 

sounds cheaper and less stress just to run race gas full time. not to mention the added weight.



not that extra weight would make much difference to a supra.

 

DSMotorsports: you should check out that thread, he said it had to be modified. The guy who setup the fuel system and EMS, including the internal modifications, is an engineer at Magneti Marelli. Tuning concepts tuned it. If they could have done it without the modifications I think they would have.

 

I think the only "modification" they would need to do, is deal with the EMS only having 10 seperate injector drivers. a 6cyl supra with duel fuel would want 12 injector drivers to do sequential injection on both primary and secondary injectors. There was a large thread on dual fuel systems on the EMS forum already, and the conclusion was to wire the secondary injectors paired off "wasted spark style" and use 3 injector outputs to drive them. Injector phasing is not that big of a deal, especially for wot use that secondaries are, since your going to run them at high dudty cycle only anyway.

I would have to see the thread to see what issue they had other than this, becuase people have done dual fuel systems with the EMS already with the "off the shelf" EMS box.

Pic of the intake going on my car, for "proof that im serious". I have 850cc injectors in the secondary position, they will only be able to support about 300hp on methanol, so they will need to be upgraded to roughly 1600cc injectors to be able to run the engine 100% on methanol and shut off the 850cc primary gasoline injectors at high boost.

 

You do not get "more Air". You get better efficiency out of the charge that is induced into the cylinder.
Slicing the head is not a good idea. Your best bet is to over bore the cylinder.
The combustion chamber volume should be left alone.

 

Your placement is perfect. The injectors are at the right point in the inlet track.
Good job.

 

why stop there, why doesnt he just bump to methanol/alcohol and run 18:1+ compression and 100psi! oh yeah...thats right...because there is a certain limit to what you can do on the street. if your running pump gas, dont even dream of runing more than 9.5:1 unless you want to turn your boost way down, adn at that point your power is starting to diminish. unless of course you want to run 110+octane. but that makes you a race car. heck i could drive our Panoz GTS LM GT1 car on the street, but that doesnt make it (1)legal or (2) a street car

 

Placement was completely dictated by fitment. With the stock rail in place, there is no room to put the injectors any closer to the head and still keep them on the top of the intake. I didn't want to run them on the underside for maintenance/leakage issues, knowing I would be changing/checking the meth injectors kinda often. Putting them in the plenum voids the advantage of equal distribution, although it would honestly pobobly be fine.

honestly, I don't think the placement is going to make much effect anyway, as the secondary injectors will only be on at 25psi or more and running near static open. At that high of airflow and duty cycle, injector phasing and angle aren't of much concern I hope.

will see how it works in a few weeks, granted with the small pump/injectors, I won't be able to run even 50/50 meth/gas. Should still be enough to completely surpass the power gains seen with off the shelf meth kits. Unfortunatly, at 5X the cost.

It's still pretty cool looking anyway. Bragging rights

 

That could be a very cool setup. TEX: I think the downside is that you would have to do quite a bit of maintenance to run Methanol everyday.