can i reach 500whp?

[microgalant]

I have a 4g64 fully built specs:eagle rods, wiseco pistons, 4g63 head stock head,walbro 255lph high pressure fuelpump,stock fuel rail,stock intake,880cc injectors,gt35 turbo.
The fuel line i made it -8an steel braided, but using the stock fuel rail.
Could i reach 500whp with this set up?

 

[The_EE]

You will need a fuel pressure regulator, I would suggest 950-1000 cc injectors as you may be running his IDC's with the 880's and something to control the fuel with, DSMLink or AEM but yeah, 500 is obtainable with a decent tune.

 

[JeffGST]

880's are just enough to get you into the 500 WHP range.

I made 527 WHP on a Mustang AWD dyno with...
Stock Fuel Filter
Stock Fuel Rail
Stock Fuel Pressure Regulator
255HP and 950cc injectors

I was pushing it to the limit though. The 255HP was already at full capacity and this was on race fuel AFR's. It was enough to get me in the 130+MPH trap speeds.

 

[Asimmons90GSX]

Go with a good regulator like aeromotive. Your stock fuel rail is actually pretty good. Should have no problem with that. Like The EE said, bump up your injector size and go with Dsmlink to manage your car and you should have no problem making 500whp.
Good luck!

 

[JayRolla]

I would look into maybe running another 255lph some 1600cc injectors and E85. 500+whp will be easy.

 

[CTP]

Get some cams. 500hp on stock cams is going to be a pain in the arse.

 

[microgalant]

I'm running a microtech stand alone system.
Fisrt time i dynoed with 550cc injectors, the car made 348whp on 15 psi of boost

 

[bastard dsm]

you can do it,i made 445hp with 750's,255 pump,18g sl2,stock fuel filter,stock fuel rail and reg,stock fuel lines.i was also running e85 and i dont have any issues.

 

[Asimmons90GSX]

I would look into maybe running another 255lph some 1600cc injectors and E85. 500+whp will be easy.

Umm...can we say OVERKILL? Dude that's the kind of setup you need to push upwards of 800whp. And why would you run another 255? Just go with an aeromotive unit.

 

[Asimmons90GSX]

Get some cams. 500hp on stock cams is going to be a pain in the arse.

Very true! Cams wake up these motors like you wouldn't believe

 

[dsmconvict]

I've heard nothing but bad about aeromotive....for 800hp I'd run dual bosch 044 pumps.

 

[CTP]

Umm...can we say OVERKILL? Dude that's the kind of setup you need to push upwards of 800whp. And why would you run another 255? Just go with an aeromotive unit.

You need more injector to run E85. Stoich is like 9.7:1.

 

[Asimmons90GSX]

I've heard nothing but bad about aeromotive....for 800hp I'd run dual bosch 044 pumps.

Umm.....where?? WTF

 

[bastard dsm]

You need more injector to run E85. Stoich is like 9.7:1.

ok you dont know what your talking about WTF if you using e85 and you have a wide band
you dont tune for 9.5 a/f's,it is still 11.5-12.5 a/f's for max power.the o2 dosnt care what fuel
your using.

 

[JeffGST]

ok you dont know what your talking about WTF if you using e85 and you have a wide band
you dont tune for 9.5 a/f's,it is still 11.5-12.5 a/f's for max power.the o2 dosnt care what fuel
your using.

Your above statement could not be further from the truth. You have been misinformed.

Gasoline Stoich = 14.7 to 1
E85 Stoich = 9.7 to 1
Lambda Stoich = 1.0 (Regardless if you are using gasoline, ethanol, methanol etc..)

When tuning for E85 WOT AFR's, you are targeting a number richer than stoich, just like you do in gasoline. AFR's will be in the 8 to 1 area at full throttle, but on the wideband it will still show 11-12 to 1 AFR's. This is because Widebands are designed for gasoline display and not ethanol.

So when you are tuning E85 you will see 11-12 AFR's on the display, but in the back of your mind you have to remember that the actual values are in the 7's and 8's AFR.

A more useful wideband tool would be to use Lambda instead of AFR ratios.

 

[JayRolla]

Your above statement could not be further from the truth. You have been misinformed.

Gasoline Stoich = 14.7 to 1
E85 Stoich = 9.7 to 1
Lambda Stoich = 1.0 (Regardless if you are using gasoline, ethanol, methanol etc..)

When tuning for E85 WOT AFR's, you are targeting a number richer than stoich, just like you do in gasoline. AFR's will be in the 8 to 1 area at full throttle, but on the wideband it will still show 11-12 to 1 AFR's. This is because Widebands are designed for gasoline display and not ethanol.

So when you are tuning E85 you will see 11-12 AFR's on the display, but in the back of your mind you have to remember that the actual values are in the 7's and 8's AFR.

A more useful wideband tool would be to use Lambda instead of AFR ratios.

I think thats what he was trying to say just didnt word it right. You still shoot for gas afr's on the wideband when tuning alcohol fuel.