Single shotgun capability
- Thread starter Vitan
- Start date
All shotgun users start out with the "single" shotgun. The double shotgun people just have a second pump kick in later.
I have the double shotgun but currently run the single pump on E54. Haven't had a whole lot of luck due to my car giving me issues, but what would you like to know?
I have the double shotgun but currently run the single pump on E54. Haven't had a whole lot of luck due to my car giving me issues, but what would you like to know?
I like to know how much whp can single shotgun support on e70, e60, e54, etc. Where are limits. I know about 600whp on E85.
I've found this answer depends on who you ask, and what mods they have. But I've heard reports of hitting 700whp with a built top end. @Erichale77
But there are probably a half dozen people on here that report well into the 600's with a single shotgun.
But there are probably a half dozen people on here that report well into the 600's with a single shotgun.
Thanks. My mods are single turbo FP3586HTA. My target is around 650whp@27psi. I like idea of shotgun more than PI, so I want to know if single shotgun is sufficient. And second problem is, that I don't know, if E70 or E60 can handle so much boost with 10.2 CR.
I don't think that your goal of 650WHP would be hard to reach at all with a single shotgun with any blend of ethanol. I posted dyno of my car hitting 852WHP on E85 with one HPFP running on my double shotgun set up but I am also running PI and have a fully built motor with cams and custom IM and bottom mount twin scroll mani. The only problem I encountered was that my stage 3 LPFP couldn't keep up with fuel demands. I'm in the process of upgrading LPFP set up and new line to correct that problem.
Careful with some of the single shotgun numbers out there -often times they're run either very lean, or at altitude and heavily corrected numbers. Uncorrected we usually see right around (or a little under) 600ish whp on a single barrel running 100% E85 before pressure drops, but this depends on tune, A/F ratio, etc. Obviously E blends will help this quite a bit. We never recommend completely maxing your fueling system -good practice to leave some margin in all components.
Chris
Chris
All true. But my engine and set up is one of a kind. Tony is familiar with it. It did start to lean out past 850 so we decided to turn it back down until a proper fuel set up is installed. But I still believe OP's goal of 650 is obtainable with a single shotgun set up on an ethanol blend.
