 DSM + E85 + 38 psi at 23 degrees of timing |
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 Jun 1 2007, 01:22 AM
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#1
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Beginner  Group: Members Posts: 48 Joined: 21-May 07 Member No.: 1,160  |
  a little after hours tuning session looks like I am making a little more power  oh yeah 700 hp 523 torque better yet that is only 11.7 a/f yeah there is more left in it -------------------- Actions Speak Louder Than Words. Dont Talk About It Do It.
"Build it, Boost it, Break it.......and Repeat" Trent @ Rev Hard Inc Rev Hard Inc 2500 4th ave Rock Island Illinois 61201 1-309-788-DYNO toll free 1-877-RHI-DYNO www.revhardinc.com email: td@revhardinc.com |
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Jun 1 2007, 06:23 AM
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#2
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DSM Tech Wizard Group: Members Posts: 2,404 Joined: 16-December 03 From: Fletcher/Bloomington Member No.: 214 |
Is that with a blend of E85 or is it just the straight up stuff out of the pump?
In either case, GOOD JOB!!!! -------------------- "I hear he tunes the space shuttle also...and that thing is fast"
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Jun 1 2007, 06:33 AM
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#3
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DSMCentral Godfather Group: Admin Posts: 3,823 Joined: 10-January 01 From: Washburn Member No.: 26 |
Nice work Trent!
 Another E85 related question... What size injectors are you using on that thing? -------------------- In Loving memory of David T Crebo
Greatness comes from the most unexpected places!  |
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Jun 1 2007, 07:16 AM
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#4
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Beginner Group: Members Posts: 48 Joined: 21-May 07 Member No.: 1,160 |
full e85 It just flat out rocks, and 1600 fic injectors, and thanks
-------------------- Actions Speak Louder Than Words. Dont Talk About It Do It.
"Build it, Boost it, Break it.......and Repeat" Trent @ Rev Hard Inc Rev Hard Inc 2500 4th ave Rock Island Illinois 61201 1-309-788-DYNO toll free 1-877-RHI-DYNO www.revhardinc.com email: td@revhardinc.com |
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Jun 1 2007, 09:05 AM
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#5
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Person of Wisdom Group: Members Posts: 244 Joined: 3-March 03 From: Bloomington Member No.: 97 |
What kind of AFR are you guys shooting for with the E85?
-------------------- 1990 Nissan 300ZX T
1992 Accord EX |
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Jun 1 2007, 11:28 AM
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#6
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Beginner Group: Members Posts: 48 Joined: 21-May 07 Member No.: 1,160 |
right now we ar at about 11.7 a/f
-------------------- Actions Speak Louder Than Words. Dont Talk About It Do It.
"Build it, Boost it, Break it.......and Repeat" Trent @ Rev Hard Inc Rev Hard Inc 2500 4th ave Rock Island Illinois 61201 1-309-788-DYNO toll free 1-877-RHI-DYNO www.revhardinc.com email: td@revhardinc.com |
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Jun 1 2007, 02:35 PM
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#7
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 DSMCentral Freak Group: Members Posts: 396 Joined: 10-January 01 From: Peoria, IL Member No.: 8 |
Congrats! That thing is ready fly!
Do you offer any weekend dyno testing? -------------------- |
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Jun 1 2007, 02:51 PM
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#8
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Beginner Group: Members Posts: 48 Joined: 21-May 07 Member No.: 1,160 |
yes we are open on saturdays from 10 to 6 sometimes later.and whenever your ready to schedule just give us a call.
-------------------- Actions Speak Louder Than Words. Dont Talk About It Do It.
"Build it, Boost it, Break it.......and Repeat" Trent @ Rev Hard Inc Rev Hard Inc 2500 4th ave Rock Island Illinois 61201 1-309-788-DYNO toll free 1-877-RHI-DYNO www.revhardinc.com email: td@revhardinc.com |
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Jun 1 2007, 03:48 PM
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#9
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 Post Master Group: Members Posts: 626 Joined: 25-September 02 From: Urbana, IL Member No.: 19 |
QUOTE (Booztd 3 @ Jun 1 2007, 03:05 PM) What kind of AFR are you guys shooting for with the E85? Some of you are probably thinking he's running terribly lean, given that stoich for E85 is around 9.7:1 or so. The thing about most widebands is that the AFR they display is based on whatever fuel the unit is programmed to work with. O2 sensors just measure the amount of leftover oxygen and calculate the AFR based on how much fuel it would have taken to reach that percentage. If you're using a WB calibrated for gasoline, 14.7 will be stoich for any fuel you use, and around 11.5 to 12.5 will be a good AFR for boost, no matter if you're using methanol, ethanol, e85, propane, unleaded, race gas, etc. The 'ideal' amount of leftover oxygen in the exhaust doesn't change just because you've changed fuels. -------------------- Eric Wort
87 White Buick Turbo 'T' (11.71 @ 116.5, 1.61 60ft, slipping trans) 92 Teal Eagle Talon TSi AWD (burn victim) |
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Jun 2 2007, 02:24 PM
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#10
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Person of Wisdom Group: Members Posts: 244 Joined: 3-March 03 From: Bloomington Member No.: 97 |
QUOTE (wortdog @ Jun 1 2007, 04:48 PM) QUOTE (Booztd 3 @ Jun 1 2007, 03:05 PM) What kind of AFR are you guys shooting for with the E85? Some of you are probably thinking he's running terribly lean, given that stoich for E85 is around 9.7:1 or so. The thing about most widebands is that the AFR they display is based on whatever fuel the unit is programmed to work with. O2 sensors just measure the amount of leftover oxygen and calculate the AFR based on how much fuel it would have taken to reach that percentage. If you're using a WB calibrated for gasoline, 14.7 will be stoich for any fuel you use, and around 11.5 to 12.5 will be a good AFR for boost, no matter if you're using methanol, ethanol, e85, propane, unleaded, race gas, etc. The 'ideal' amount of leftover oxygen in the exhaust doesn't change just because you've changed fuels. I was really aiming to see what the 'safe' limit of the fuel is, because I normally tune for 11.5-11.8 on pump gas and when I switch to race gas its around 12.5......given E85's much higher octane rating, I wasnt sure if they were shooting for over 12's or what... -------------------- 1990 Nissan 300ZX T
1992 Accord EX |
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Jun 2 2007, 08:38 PM
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#11
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 DSMCentral Freak Group: Members Posts: 259 Joined: 6-February 04 From: Bloomington Member No.: 233 |
I've been looking at doing this for quite some time now. It's just the matter of comming up with the money to get it going. I'm planing on running 1000cc primarys and 1600cc seconarys. According to the math I'm going to be close to the limit with the air that the GT4202RV can move.
Here is the formula for any fuel. sAFR = (%ofAdditive * sAFRadditive + (100-%ofAdditive) * sAFRgas) /100 Also this is a simpler way.. Take E85 for example.. sAFR = .85 x 9 + .15 x 14.7 sAFR = 9.855 And for calculating from a known 12.5 FAR to what you would need to run with a blend... Again E85 as an example.. FAR= (12.5/14.7 ) x 9.855 FAR= 8.380 -------------------- Yeah!!!!!!!!!!! AND WASH THAT THING OFF BEFORE YOU COME BACK!!! GROSS
FP 3065, Ported 2G exahust manifold, AEM EMS, 3" 02 housing, Shepard Racing Stage 3 tranny, Fadinza 8 LB. flywheel, Exedy stage 2 tripple puck thick ceramic cluch, 08 from the tank to filter, -6 to rail from filter, Aeromotive FPR 1:1 riseing rate, Crower Stage 4's. All of that and I don't know what I want to do next. |
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