Pontiac - Race The next Level

          
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Old 08-04-2011, 05:02 PM
GOAT8U2's Avatar
GOAT8U2 GOAT8U2 is offline
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Location: Prospect Hts, IL
Posts: 731
Default 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  
Old 08-06-2011, 07:15 AM
TA454 TA454 is offline
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Location: Bechtelsville Pa
Posts: 237
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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 .

  #3  
Old 08-07-2011, 01:02 PM
CraigG.'s Avatar
CraigG. CraigG. is offline
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Location: Iowa
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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  
Old 08-15-2011, 01:32 AM
GOAT8U2's Avatar
GOAT8U2 GOAT8U2 is offline
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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

__________________
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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