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#1
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E85 Carb Specs Thread
I'm having some minor issues so I wanted to create this thread so those of us burning the Corn Stalk could have a place to see what others are doing.
406ci Unported Stock Heads #16 3800 Flash Stall Converter by Sinister Speed CSU 750cfm 4150 E85 Jets = 70/78 PV = 3.5" (High Flow) IFR = .038 IMS = 1/2 out Squirters = .037 (Pr & Sc) Hollow Hole Screw Accelerator Pumps = 30cc Green Cam (Pr) /Orange Cam (Sc) Fuel Pressure = 7psi Currently my GTO will stall out when I bring it up to 1500rpm and then flash it (hammer it to the floor). I'm thinking I need .040 Squirters and maybe even a 50cc front pump if those don't do the trick.
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69 GTO Convertible, 4000lbs 462ci, 606tq/569hp - 93 oct @ 34 deg (207psi) 11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10", Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" & Borla Pro XS 3", Alum Rad & Dual Fans, 12:1 Box, UMI Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump, 12 Bolt, 3.73, 33 Spline |
#2
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definately need 50 cc pumps and bigger squirters. Probably need more jet also 70/78 is close to stock holley out the box gas size. when it comes to e-85 the key thing to remember is you need to feed the motor 30% more than gas. It also burns slower so a little more timing is needed .
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#3
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Hey, Thanks for starting this thread - reference for E85 Pontiacs. There are a few e85 people on this board. I hope to get mine running this fall. Racing in the spring - then have info to share.
Thanks Again, Craig |
#4
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Yep, installed the 50cc Accelerator Pump and Yellow Pump Cam (#1 hole) and it's ripping the tires big time. Wideband is going into the low 12's and high 11's on the hit now.
New combo below 406ci Unported Stock Heads #16 3800 Flash Stall Converter by Sinister Speed CSU 750cfm 4150 E85 Jets = 70/78 PV = 3.5" (High Flow) IFR = .038 HSAB = .028 LSAB = .051 (still messing with this for a leaner cruise) IMS = 3/4 out Squirters = .045 (Pr) .040 (Sc) SS Hollow Hole Screws Accelerator Pumps = 50cc (Pr) 30cc (Sc) Pump Cams = Yellow Cam #1 Hole (Pr) Orange Cam #1 Hole (Sc) Fuel Pressure = 7psi Timing = Base *8, Mechanical *26, Vacuum Adv *14
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69 GTO Convertible, 4000lbs 462ci, 606tq/569hp - 93 oct @ 34 deg (207psi) 11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10", Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" & Borla Pro XS 3", Alum Rad & Dual Fans, 12:1 Box, UMI Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump, 12 Bolt, 3.73, 33 Spline |
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