91 octane map, switch to 116 map
Civic_D16Y5
03-31-2005, 04:33 PM
friend is getting a auxiallry gas tank, and a switch, and another ecu with a 116 octane base map, while their normal fuel will be 91. when he wants he can flip a switch. what have you guys heard about this?
94PreludeJDM
03-31-2005, 05:20 PM
What kind of upgrades does he have? If he's got a really nasty set up then I guess it makes sense, but I don't think the higher octane really makes that much of a difference unless the car has an agressive set up (N/A or turbo).
Civic_D16Y5
03-31-2005, 07:41 PM
12 psi, turbo
340 hp
ls
90 civic hatch
340 hp
ls
90 civic hatch
94PreludeJDM
03-31-2005, 07:57 PM
hmm, I guess it makes sense then. It certainly isn't going to do any bad. How much is it gonna cost to do the whole thing?
civickiller
03-31-2005, 08:14 PM
you need to switch ecus everytime you switch fuel. also at 340whp he doesnt need 116, 91 can go till 400whp. also yeah it sounds like a good idea but what about the return line? is he gonna run a way to switch return lines to the aux tank ? if not then the 116 is going back to the stock tank and is gonna mix with his 91.
Civic_D16Y5
03-31-2005, 08:37 PM
yeah, the local import shop is gonna wire it all up for him and im sure thay will do something like that
superbluecivicsi
03-31-2005, 09:57 PM
why use a different gas tank with a base map on 116? how about filling the tank up with 100+ and switching to a tuned map.................or am i just getting old?
turboEKhatch
03-31-2005, 10:16 PM
you need to switch ecus everytime you switch fuel. also at 340whp he doesnt need 116, 91 can go till 400whp. also yeah it sounds like a good idea but what about the return line? is he gonna run a way to switch return lines to the aux tank ? if not then the 116 is going back to the stock tank and is gonna mix with his 91.
91 is good to a lot more than 400 WHP, I watched a local car here bust 465 to the ground on 91 octane before he called it quits, that's enough for me to see :) Everyone just goes ultra-conservative with tuning, which is why most people stop at 400-ish. A seperate tank is too many headaches to deal with. He will make more power than street tires can take on pump gas, why slap a second tank in there? If he REALLY wants to make more power on pump gas run a methanol kit instead of dicking with a second gas tank.
91 is good to a lot more than 400 WHP, I watched a local car here bust 465 to the ground on 91 octane before he called it quits, that's enough for me to see :) Everyone just goes ultra-conservative with tuning, which is why most people stop at 400-ish. A seperate tank is too many headaches to deal with. He will make more power than street tires can take on pump gas, why slap a second tank in there? If he REALLY wants to make more power on pump gas run a methanol kit instead of dicking with a second gas tank.
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