If it's been working for 8 months, then why upgrade the fuel system? Unless you want more boost and a bigger head unit. Seems like the system has proven itself capable. My thoughts are 700 whp on a BAP at 22v should be fine on E85 if injectors are big enough. I think you have proved that it works.
I'm upgrading the head unit already talked to my tuner.
One guy doesn't prove anything. There is a reason the big name (and reputation) guys don't tune E85 won FI without a fuel system. It's rolling the dice big time.
I think in this post they have mentioned many are running a BAP on E85. It's an old belief that it's better safe than sorry. So the argument is its not worth the risk. Just because it's not worth the risk to some(or even most) doesn't mean it's black and white that it's needed. Just recommended as a safety factor. The same reason Ford designs a 435 bhp car that is capable to hold up to the stress of 900 or 1000 bhp. That's goes back to the old term from Engineering classes, "When in doubt, make it stout". Most things designed have a safety factor built in to there capability rating. To prove that a returned system is "Needed" compared to the factory returnless variety renquires a study to determine what the limiting factor is. I've designed several fuel systems for single turbo 2JZ-GTE Supras back in the day. The limiting factor on them was the factors fuel line. Was too small to flow the volume a twin pump system could produce and keep up with 650+ whp. So we used a -8 single fuel line running to the fuel rail and used the factory feed line as the return. So to say it's needed blindly, without some more information to come to that conclusion it could be overkill for 700 whp on E85 is unfounded. JMS claims in there literature up to 850 to 900 whp on a Mustang with a BAP. We have at least one documented case in this thread of it working. Does he have a datalog of fuel pressure? Don't know. They might be padding the MAF transfer function at high RPM to account for pressure drop. Who knows without the datalog. But am I surprised he hasn't blown his motor. NO.
My problem is that if I were to go the BAP route (am NOT wanting over 700WHP) that I would have to switch tuners. I am very comfortable with Kens tune. Everything is so smooth and glitch free. To switch to another tuner is a risk in itself. My local shop has been hinting for me to change tuners and that they will tune a BAP on E85. Plus I would have to buy the Ngauge and sell my SCT hand held. Ken commented that I could go with a 79mm pulley but only with a fuel system NOT a BAP. I am going to get Ken on the phone this coming week and get a more detailed explanation of what he wants me to do and how $$$ it will take. I have no problem just leaving car as is. It all amounts to how $$$ is available. If I spend all my money on this car. Shops,vendors and Fed Ex will be happy and I will be in divorce court.
same thing we all recommend, a basic level one will do the trick for youMy problem is that if I were to go the BAP route (am NOT wanting over 700WHP) that I would have to switch tuners. I am very comfortable with Kens tune. Everything is so smooth and glitch free. To switch to another tuner is a risk in itself. My local shop has been hinting for me to change tuners and that they will tune a BAP on E85. Plus I would have to buy the Ngauge and sell my SCT hand held. Ken commented that I could go with a 79mm pulley but only with a fuel system NOT a BAP. I am going to get Ken on the phone this coming week and get a more detailed explanation of what he wants me to do and how $$$ it will take. I have no problem just leaving car as is. It all amounts to how $$$ is available. If I spend all my money on this car. Shops,vendors and Fed Ex will be happy and I will be in divorce court.
It is better to be to much! Especially in the fuel system..
