Let's talk octane...

MightyBobo · 11-06-2011, 03:34 PM

Quote:

Originally Posted by XwChriswX

Since larger injectors will come with any Z TT kit, could you theoretically convert to E85 at the time you went TT? Or would you need even larger injectors than the ones that come with the kit being the kit has already compensated for the extra fuel needed for TT?

Depends on the injectors, but I'd hazard to guess you'd need to go even BIGGER. I dont know how close we are to maxing out the stock injectors with only basic breathing mods off hand, but I doubt any FI kits are going to come with HUGE injectors - just enough to handle the max HP of the kit. Whereas with an E85 setup, you'd need injectors 30% bigger than THAT, really.

Also, cant forget the fuel pump...one that can at least keep up w/ those injectors...

XwChriswX · 11-06-2011, 03:37 PM

Quote:

Originally Posted by MightyBobo

Depends on the injectors, but I'd hazard to guess you'd need to go even BIGGER. I dont know how close we are to maxing out the stock injectors with only basic breathing mods off hand, but I doubt any FI kits are going to come with HUGE injectors - just enough to handle the max HP of the kit. Whereas with an E85 setup, you'd need injectors 30% bigger than THAT, really.

Also, cant forget the fuel pump...one that can at least keep up w/ those injectors...

Of course, once you know how much you'll be 'injecting' then you know how much fuel you need, in terms there is your pump size required so you get that as well. Interesting... Soooo much involved with just switching gas lol.

MightyBobo · 11-06-2011, 03:39 PM

Quote:

Originally Posted by XwChriswX

Of course, once you know how much you'll be 'injecting' then you know how much fuel you need, in terms there is your pump size required so you get that as well. Interesting... Soooo much involved with just switching gas lol.

Theres a lot of science behind setting up a proper fuel system. You'd think you can just add a pump, but sometimes even just one pump isnt enough for an E85 setup. I should see if I can find my friends crazy *** home-made pump setup for his garage built, TT 427. He already had a 1100HP/1000Tq twin turbo Silverado, and sold it...

XwChriswX · 11-06-2011, 03:41 PM

Quote:

Originally Posted by MightyBobo

Theres a lot of science behind setting up a proper fuel system. You'd think you can just add a pump, but sometimes even just one pump isnt enough for an E85 setup. I should see if I can find my friends crazy *** home-made pump setup for his garage built, TT 427. He already had a 1100HP/1000Tq twin turbo Silverado, and sold it...

When you get into a situation like that, do you have 2 pumps in line with eachother, a smaller one to feed the larger one? Or would that give you starvation issues? Would you instead have 2 separate fuel lines, 1 for each bank with their own pump/filter?

MightyBobo · 11-06-2011, 03:42 PM

Quote:

Originally Posted by XwChriswX

When you get into a situation like that, do you have 2 pumps in line with eachother, a smaller one to feed the larger one? Or would that give you starvation issues? Would you instead have 2 separate fuel lines, 1 for each bank with their own pump/filter?

There's many ways to handle it. Sometimes 2 inline pumps is one way. Other times, 2 pumps maintaining pressure is another way, sometimes multiple fuel lines going into rails is another. Like I said, lots of science

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