is a 1000cc injectors enough when tunning e-85 ona gt3582r

 

No. 1600CC is needed for any worthwhile boost level. Also will need a Dual pumper.

 

Are you running the GT3582R right now on pump 93? If so, then simply calculate off of your IDC's and you will see how much injector you need. Add 30% for the E85.

It also depends on size of motor 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, and what boost pressure you plan to run. Fuel needs are proportionate to air flow. But you knew that.

So, yes, the 1,000cc will be fine on E85 if you only want to run 8psi.

 

So True^

 

Yes, you really need to do your match to figure out what kind of fueling you are going to need. I think you will find that 1000's aren't going to be big enough.

FWIW, I have a full built 2.0 running 9.7:1 compression with a IX Turbo, ported everything, and I am seeing very high 70, middle 80's for duty cycle. I am also running the IX around 28.5-30 psi spikes tapering to 24 to 24.5 psi by 7500rpm.

You will need a fuel pump too as my set-up is only running on 1 255 Walbro. I am planning on switching it to a Bosch 044 intank soon.

 

1600cc

 

I have personally tune 2 cars with pte 1000cc's and rc 1000cc's and both of them made good power. Both were right in the range of 520 on a local md dyno that reads a little high. but dont plan to get more than 28psi out of 1000's. If you want to do more boost just get 1200's.

 

Faster spooling turbos like the 9 needs, bigger injectors and double pumper's. To make any kind of good numbers! But when you have a slower spooling turbo, like a 35r you can use a little smaller injector! A member of the forum with hta88, 1200 pte's made 565 on stock bottom end with just 28psi.

 

I see some misinformation in this discussion.

A single Walbro 255lph will do for just about anything on E85 short of 500whp, provided that you have an adequate injector (e.g. 1000cc) and efficient tuning. Been there, done that.

For E85 applications from 500-575whp, a dual in-tank pump setup and 1250cc injectors will suffice.

For E85 applications in excess of 575whp, a 1450cc injector is necessary.

You'd rather not resort to 1600s if you intend to run gasoline at all. Likewise, at the point where a 1600cc injector becomes necessary (high boost pressures), an additional external pump (e.g. Bosch 044) will become necessary to reduce the pressure load on the smaller in-tank Walbro(s).

 

With double pumpers or an additional inline right? No way a single pump and 1kcc injectors are making anywhere close to 520whp with E85 on a proper reading mustang.

 

I might be misunderstanding this but what does spool up have to do with IDC's? Or you don't understand VE of a motor. Peak IDC's are usually at peak horsepower and/or higher RPM. I've never ever seen IDC's even close to maxing out at peak spool boost on stock turbos to 35R's.

A stock 9 turbo needs bigger injectors than a 35R on E85? I think there is a miscommunication here.

 

I saw RRE tune a 35R w/ 1600cc injectors recently. Did a conservative low 500something whp, but the single walbro limited it to only 24psi

 

I think fuel pressure is the main problem with e85, you do need big injectors. The twin pumps can keep the fuel rail full on the smaller turbos. But the fuel rail is full on the bigger turbos because of spool time, with a single pump. You can tune stock 9's with 1000's with only 28 psi, but the red needs twin pumps because of the tork it produces. As David tuned sheps car on the twin pumps and 1600's, it ran out of fuel. But i think the stock lines was restricting fuel pressure and mike at awd has proven that by getting different tank and bigger pump and bigger lines. As he made more power with better fuel pressure. But in the end it takes alot more of E than any other fuel.

 

I believe you are confused.

Fuel demand is a function of mass airflow, which is directly linked to hp, not torque. The rpm where the engine is developing peak hp is the point of peak fuel demand, not peak torque.

An engine with large turbo that develops more hp than an FP Red will require more fuel capacity than an FP Red every time.

 

I was running out of fuel on my 35r at 26psi with a rewired 255 and 950's on e85. I'd say with 1000's don't try for more than 26psi or you will be running your injectors at the edge.