This is not true.
Upgraded HPFP is more expensive than MPI Generally. I know quite a few people who would recommend MPI over a HPFP for ethanol. E-30 is about the limits of what you can run stock without modification. MPI allows more fuel flow and also has the added benefit of cleaning the back of the valves.
Autotech internals cost $350. PR's MPI kit costs $850, and typically people upgrade their LPFP when going MPI, which will cost another $1000+. HPFP is definitely not more expensive than MPI, ever.
Pre-assembled HPFP are $750-900 You can also do MPI for $500 or less.. I did my build for $425. I've heard too many horror stories about people assembling the HPFP internals wrong. For my money I'd go MPI, and this is from a 1.8T with smaller DI injectors and HPFP than a 2.0. A HPFP is a route they could take if they wanted, but MPI and a RS3 LPFP kit would set you back about a grand and handle any turbo you throw it at down the line.
sure, if we're talking upgrading the turbo then MPI and LPFP is the way if you want max performance.Pre-assembled HPFP are $750-900 You can also do MPI for $500 or less.. I did my build for $425. I've heard too many horror stories about people assembling the HPFP internals wrong. For my money I'd go MPI, and this is from a 1.8T with smaller DI injectors and HPFP than a 2.0. A HPFP is a route they could take if they wanted, but MPI and a RS3 LPFP kit would set you back about a grand and handle any turbo you throw it at down the line.
) the poster asked what is needed to run E30 on an IS20. the answer to that question is NOT MPI.
He asked what he needed to run full E85:
He wants to blend to E85. which would be 80% ethanol at max as E85 can range between 45-85% Nationally by legal definition. So unless he lives in a state that regulates it further, it will vary, so I assume he wants a full flex setup.
Interpretations aside, even running full E85 or a blend tune, an HPFP is all he needs.He asked what he needed to run full E85:
He wants to blend to E85. which would be 80% ethanol at max as E85 can range between 45-85% Nationally by legal definition. So unless he lives in a state that regulates it further, it will vary, so I assume he wants a full flex setup.
I gave him information general to E-85 and Blending. To me it didn't seem like he wanted a blend tune, and wanted to run straight E-85.
Same could be said for MPI. I'm running full E85 at 80% according to my GM sensor. All I have is MPI.
I also gave the disclaimer that a lot of this is tune or tuning platform dependent. Cobb I believe hasn't released all tables and such, so certain setups are probably popular depending on how they can tune. I wouldn't really know, Cobb was too little too late to the 1.8T world IMO. I'm also spoiled by OS. 70 bucks and some work and you can do better than anything a Cobb platform can offer currently.Does this mean I just go to the gas station and pump around 3 gallons of E85 into my tank of 93 octane?
Not exactly.
