S2kMano

I have an aem 340lph with aem fuel rail, bigger fuel lines and id1050s. At first I wasn't planning on running on e85. But we decided to give it a go.
Just wondering if it will keep up at 15psi of boost.

Charper732

That depends on how much power you are going for. But generally id1000s will max out and make at or near the same power as running on 93 oct.

S2kMano

15 psi of boost power is what we got right now. I think maybe upgrading injectors to 1300 should make it work. But leave minimal room for more power under e85.

Thanks for your response

Charper732

15psi on a 60mm turbo is not the same power as 15psi on a 70mm turbo. That being said, 1300 would be a smart move. I ran 1300s with 16psi on a 6062 and made 508hp.

Im now on a different setup and on id2000s. My 1300s are for sale if youre interested.

S2kMano

I may take that offer lol, but I'll get back at you to see what happens and see where to go next.

DavidNJ

I don't understand that comment. How does the engine know or and why would it care how the MAP is created, other than the IAT?

DavidNJ

You can estimate the power with BW MatchBot, Garrett BoostAdvisor or similar software. Several companies have injector sizing calculators online: https://www.rcfuelinjection.com/Technical, Fuel Flow Calculator - Injector Dynamics, https://fuelinjectorclinic.com/flow-calculator, etc.

You will need to predict power level or displacement and engine speed. 15psi is roughly doubling the amount air and will result in about 450 +/- hp on pump gas. Ethanol is oxygenated and increases the hp (burning more oxygen) and the amount of fuel required (more oxygen burnt and part of the fuel is oxygen, not hydrocarbons. The formula is always some hydrocarbon plus oxygen being converted to water and CO2 with some energy released.

riceball777

the 1000cc will be the weak point. You should get the id1300cc injectors. 1000cc injectors only support 450-500whp on E85. Depending on what turbo you have 15psi on E85 should be more than 450whp espically on a current billet wheel ball ball bearing turbo.

hatrickstu

Does a 6262 flow the same through the exhaust side as a 6870?

scottdh20

ill break down what he was saying a bit. psi is a irrelevant number. literally the only time that number matters is estimating how much psi you will need to run to achieve a hp goal and select an appropriate sized map sensor for that goal. psi does not make power, CFM does. how much CFM of air a turbo pumps out at a given psi varies greatly between turbos. making up some numbers here to provide an example, lets say a greddy turbo kit at 15psi makes 300whp vs guys on gtx35 making over 400 on 15psi. thats because the gtx flows more cfm at a given psi number.

that said there are a few really common turbos used on s2k's (gt30,gt35, 5858, 6262,6266, etc) so when people say 15psi on a 6262 people have a general idea of what that translates into....just saying 15psi and leaving out turbo info we have no idea