How Fast On 120s? (E85)

[Boost231]

Curious how fast people have gone on 120s on E85. I've made 600hp to the wheels on 20psi but never made a full pass. Just curious as I think that's going to be my limiting factor on the new setup.

 

[MikeL.]

Curious how fast people have gone on 120s on E85. I've made 600hp to the wheels on 20psi but never made a full pass. Just curious as I think that's going to be my limiting factor on the new setup.

I trap at 123 to 125 but my inj dc is into tbe 90s at 21/22 lbs of boost so i dont push it. Full weight GN.

 

[Boost231]

What pump and fuel line setup?

 

[MikeL.]

racetronix dual 340s, -8 feed and -6 return. Not sure if I'm pump, injector limited or both...

 

[Boost231]

Cool, time to data log rail pressure

 

[Nick Micale]

Don't worry about your 120's Brent.

I have run 9.80's @ 136 MPH and the duty cycles is high 60%, and you have more pump than I do!

 

[MikeL.]

What pumps/fuel setups are you guys running? Sounds like dual 340s arent enough.

 

[Chuck Leeper]

racetronix dual 340s, -8 feed and -6 return. Not sure if I'm pump, injector limited or both...

Run the psi at LS pressure, [4 bar], and the 120's become 141# injs. If the dc goes down, then the injs are the restriction. If it stays, it's a fp/volume issue.

 

[Nick Micale]

Brent and I run large Aeromotive pumps and we also use e-85 fuel so we need lots of fuel supply and would not trust 2 340's in the tank.

Recently I installed 140# injectors from DW for a field test, and they are performing excellent, and idle is better than the 120's!

 

[MikeL.]

also on e85 here at a 1.84/gal. hard to beat. I run the twin 340's due to class rules otherwise I'd go external. Thanks for the tip. I'll increase rail pressure and log inj/dc.

 

[Boost231]

What class?

 

[czimpel]

I thought my DW300 would take me quite a ways with 120s, but after reading this, I may need more pump.

 

[Slow91z]

136 MPH with 120's at high 60's DC on e85?? What base pressure and what AF ratio?

 

[jdpolzin]

404rwhp with 120's. Stock fuel lines, single Walbro 340, Hotwire kit, 61 turbo 28# of boost.

 

[BEATAV8]

I've gone 133mph with some room left. Low fuel pressure, 42psi base. ~92% duty.

 

[MikeL.]

What class?

THS.......just a field filler till this fueling issue is jixed.

 

[regalized]

6.88 @101, showed 65% duty cycle, about 22 lbs boost, 67/66 turbo. Single walbro 430. Lifted left front tire @ 7lb launch foot brake.

 

[Double-L]

I have been thinking about going to E85 as my car is set up for it other than the 83 injectors but I run 10.40's at 131 on pump gas and alky at 21-22 pounds of boost now and getting really good mileage with the ac on, Would it really help me that much

 

[Nick Micale]

............... Would it really help me that much

Just my opinion, if you are running that well and safely on pump gas and are satisified at that level, I would not change anything!

If you want to step it up and run into the 9's, you might then want to consider e-85 and other mods like injectors.

 

[Double-L]

I have 60's now so yes I know I need bigger ones but trying to decide on the size, I am thinking of a fast system with the flex fuel sensor, I have a 66 b.b. now would love to get the 6766 but a little at a time, I need to get it to hook up the way it is now, I am going to try a re-locator in the back and a friend has some Mickey Thompson radials I can try, Not trying to take your post just answering a question