What else do I need to run e85
06-15-2017, 02:01 PM
#11
Are you just running off wastegate spring? If you dont plan on setting up boost by gear or high and low boost settings then a boost controller isnt needed. If you have a my s2000 with return fuel line all you need is to empty fuel tank completely(there are many creative ways to do this lol), fill with e85 and tune.
if you have an ap2, i highly encourage getting return fuel line put in, then e85 and tune.
your 1000cc injectors may max out at around 450-500whp on e85. Other than that, its all in the tune.
if you have an ap2, i highly encourage getting return fuel line put in, then e85 and tune.
your 1000cc injectors may max out at around 450-500whp on e85. Other than that, its all in the tune.
Why the return fuel line?
06-19-2017, 04:33 PM
#12
it all depends on what you want to do. At 20 psi on E85 it'll probably net you around 550 to 600whp. At those power levels you will for sure be spinning the tires especially in first and second gear. Boost by gear will help with traction if set up correctly. In order to do so you'll need a boost solenoid and an engine management system that can control boost by gear. As for the return fuel line you can read up on it some more on the SOS website. On an ap2 once you go above 450 whp, the fuel pressure drops in the upper RPMs. Having a return fuel line will help keep a more consistent fuel pressure. You could try without it first but you may find yourself running lean at times in the upper rpms. Some people have tried boost a pump or messing with the fuel pressure regulator the most threads I've read were with little success especially at those power levels
07-01-2017, 09:31 PM
#13
it all depends on what you want to do. At 20 psi on E85 it'll probably net you around 550 to 600whp. At those power levels you will for sure be spinning the tires especially in first and second gear. Boost by gear will help with traction if set up correctly. In order to do so you'll need a boost solenoid and an engine management system that can control boost by gear. As for the return fuel line you can read up on it some more on the SOS website. On an ap2 once you go above 450 whp, the fuel pressure drops in the upper RPMs. Having a return fuel line will help keep a more consistent fuel pressure. You could try without it first but you may find yourself running lean at times in the upper rpms. Some people have tried boost a pump or messing with the fuel pressure regulator the most threads I've read were with little success especially at those power levels
07-01-2017, 09:35 PM
#14
Ya it's all a trade off. If u don't go solenoid you'll be stuck to one psi. Which would only allow u to exploit timing with more E.
doesnt matter how low of a psi between what you think is safe on E and your tuner. Cause his lower psi on E could have more timing then what you think is safe (higher psi) but with less timing.
Point is being able to adjust timing and psi as percentage raises, this will give you the greatest potential for tuner to dyno graph and say "ok it wants more psi, or more timing vice versa.
If your stuck at 15lbs and u run a tank of 91 you'll have super low total timing at red line.
Edit: I'm at 490 and 343 on pump 92 around 75% injector duty cycle, so there is some to be had but honestly think with the common research of 30% more fuel to make the same power, these #'s might just match up or be "negligible" I have decided not to push em. I do however spike my pump (not with additive tho) to 15% E or 2ltrs of a higher octane (preferred) race gas when I know I'm gonna be doing continous competition "Cruz" runs.
I'm on ID1ks
doesnt matter how low of a psi between what you think is safe on E and your tuner. Cause his lower psi on E could have more timing then what you think is safe (higher psi) but with less timing.
Point is being able to adjust timing and psi as percentage raises, this will give you the greatest potential for tuner to dyno graph and say "ok it wants more psi, or more timing vice versa.
If your stuck at 15lbs and u run a tank of 91 you'll have super low total timing at red line.
Edit: I'm at 490 and 343 on pump 92 around 75% injector duty cycle, so there is some to be had but honestly think with the common research of 30% more fuel to make the same power, these #'s might just match up or be "negligible" I have decided not to push em. I do however spike my pump (not with additive tho) to 15% E or 2ltrs of a higher octane (preferred) race gas when I know I'm gonna be doing continous competition "Cruz" runs.
I'm on ID1ks
07-02-2017, 12:45 AM
#15
Yes if your s2000 is a my2005 it has the return already.
i think stewie meant 490whp/343wtq. You can actually make more hp on 91 with a lower cc injector than e85. It all depends on how you look at it. You basically want a large enough injector to run the power youre trying to reach. Based on my experience, im at around 80% inj dc at 18psi on full e85 making 499whp/367wtq. In theory, i can make the same hp on 91 probably with a lot less inj duty cycle i would guess around 60% inj dc but it would be far less reliable timing/knock/heat wise compared to an e85 tune.
i think stewie meant 490whp/343wtq. You can actually make more hp on 91 with a lower cc injector than e85. It all depends on how you look at it. You basically want a large enough injector to run the power youre trying to reach. Based on my experience, im at around 80% inj dc at 18psi on full e85 making 499whp/367wtq. In theory, i can make the same hp on 91 probably with a lot less inj duty cycle i would guess around 60% inj dc but it would be far less reliable timing/knock/heat wise compared to an e85 tune.
07-02-2017, 04:33 AM
#16
Yes if your s2000 is a my2005 it has the return already.
i think stewie meant 490whp/343wtq. You can actually make more hp on 91 with a lower cc injector than e85. It all depends on how you look at it. You basically want a large enough injector to run the power youre trying to reach. Based on my experience, im at around 80% inj dc at 18psi on full e85 making 499whp/367wtq. In theory, i can make the same hp on 91 probably with a lot less inj duty cycle i would guess around 60% inj dc but it would be far less reliable timing/knock/heat wise compared to an e85 tune.
i think stewie meant 490whp/343wtq. You can actually make more hp on 91 with a lower cc injector than e85. It all depends on how you look at it. You basically want a large enough injector to run the power youre trying to reach. Based on my experience, im at around 80% inj dc at 18psi on full e85 making 499whp/367wtq. In theory, i can make the same hp on 91 probably with a lot less inj duty cycle i would guess around 60% inj dc but it would be far less reliable timing/knock/heat wise compared to an e85 tune.
I was around 70%-75% inj DC on 92 oct. in HI at fpr 70psi static.Mijae is correct, another approach would be race gas. If cant afford $1000 injectors! Lol, like me.
You could easily surpass 500whp on a good petrol mix with ID1ks & supporting fuel mods.
Last edited by MorngWoodStewie; 07-02-2017 at 04:55 AM.
07-02-2017, 05:00 AM
#18
Also unless you have GOOD self control boost by gear is good so you dont lose your first or second gears. Just my opinion but in second my transmission did not like 15 psi lol the power was not unloading off the transmission fast enough for my shifts and was almost locking me out from second to third. I would have to give it some time to "unload" and syncros would catch up or something, it wasnt grinding or anything but just felt super stressed to me.
07-02-2017, 07:47 AM
#19
2000-2005 s2000 have the return style fuel line setup which means the stock fuel line can support well over 700whp on E85. The 06+ s2000 are the ones with the crappy returnless fuel lines. They can barely support 450whp on normal non E85 fuel. So any 06+ s2000 looking for any real power needs to up garage to a return style fuel line setup.
07-02-2017, 08:00 AM
#20
ya I'm not on E. I was around 70%-75% inj DC on 92 oct. in HI at fpr 70psi static.
Mijae is correct, another approach would be race gas. If cant afford $1000 injectors! Lol, like me.
You could easily surpass 500whp on a good petrol mix with ID1ks & supporting fuel mods.
I was around 70%-75% inj DC on 92 oct. in HI at fpr 70psi static.Mijae is correct, another approach would be race gas. If cant afford $1000 injectors! Lol, like me.
You could easily surpass 500whp on a good petrol mix with ID1ks & supporting fuel mods.
