Re: Gas Mileage - TCCoA Forums
 
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post #1 of 5 (permalink) Old 07-25-2004, 10:03 PM Thread Starter
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Re: Gas Mileage

Anyone getting better than 11-12 miles/gallon on the city streets with the air conditioning on? With a compination of freeway driving and city streets, I get 16 miles/gallon. Not sure what I get on just the freeway yet...

Anyone doing better? Any ideas to get better mileage with my set-up?

AED 9 PSI Supercharger, .30 over Forged Block with Manley H-Beam Rods & Pistons, Innovative West 10% Overdrive Crank Pulley, Thump RRR Tensioner Pulley, Cobra Crankshaft, BPE Racing Stage 2 Ported & Polished Heads, Crower Direct Replacement Cams, 70MM Throttle Body, MAC Cold Air Intake, 80 MM L-MAF, 38Lbs Injectors, JBA Ceramic Coated Headers, Metal Matrix Drive Shaft, Kevlar Clutch & Kolene Reaction Plate Transmission, True 2.5" Dual Magnaflow Exhaust (Cats & Mufflers), Griffin 1 1/4" Radiator, B&M Racing Trans Cooler, Hughes 2750 Stall Torque Converter, 3.73:1 Gears with Traction Lock Differential, Trans-Go Kit, Superchips Custom Tune for Supercharger, 17" SVT Wheels, Kenny Brown Suspension Enhancers & Eibrach Lowering Kit.
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post #2 of 5 (permalink) Old 07-26-2004, 07:24 PM
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Want better gas mileage, stay off the gas.
Good luck with that, I can't!

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post #3 of 5 (permalink) Old 07-26-2004, 07:56 PM
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Wolverine27,

You want some more fuel economy? Install the stock 195 degree t-stat.

You'll be more KNOCK constrained like that, but all thing being equal, the hotter an engine runs closer to it's adiabtic efficiency, the more power it makes. It also means it's more efficient.

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2012 Honda Ridgeline RTL (w/Navi)

Ex toy: 1995 T-Bird LX - ALLEN supercharged, 2000 Mustang GT 4.6L PI engine, lot's of goodies...
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325 RWHP/380 RWTQ (SAE) on a dynojet
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post #4 of 5 (permalink) Old 07-26-2004, 11:42 PM Thread Starter
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A-Train

Why did Jim tell me to put the 180 in the car then? He said it would run better with the 180, but I noticed it not warming up as quick either...Ford always recommends the 195...

What should Jim set the Fan speed at then, since I am going up to AED on Friday...

AED 9 PSI Supercharger, .30 over Forged Block with Manley H-Beam Rods & Pistons, Innovative West 10% Overdrive Crank Pulley, Thump RRR Tensioner Pulley, Cobra Crankshaft, BPE Racing Stage 2 Ported & Polished Heads, Crower Direct Replacement Cams, 70MM Throttle Body, MAC Cold Air Intake, 80 MM L-MAF, 38Lbs Injectors, JBA Ceramic Coated Headers, Metal Matrix Drive Shaft, Kevlar Clutch & Kolene Reaction Plate Transmission, True 2.5" Dual Magnaflow Exhaust (Cats & Mufflers), Griffin 1 1/4" Radiator, B&M Racing Trans Cooler, Hughes 2750 Stall Torque Converter, 3.73:1 Gears with Traction Lock Differential, Trans-Go Kit, Superchips Custom Tune for Supercharger, 17" SVT Wheels, Kenny Brown Suspension Enhancers & Eibrach Lowering Kit.
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post #5 of 5 (permalink) Old 07-28-2004, 09:19 PM
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Wolverine27,

AED has you install the 180 degree t-stat due to the simple fact that a colder running engine is LESS KNOCK constrained. Therefore, they can dial in more spark timing. 1 degree of spark timing on a supercharged engine is approx 4-5 HP and 8-10 lb.-ft. of torque. So imagine what 4 more degrees of spark would do?

I say leave the 180 t-stat in and stop crying about your supercharged 4.6L T-Bird's fuel economy.

The fact that you have a 180 t-stat means the engine isn't running as efficiently as when it had a 195 degree t-stat. The hotter and engine runs closer to it's adiabatic efficiency, the more power it makes and the more efficient it becomes.

If you have a 180 degree t-stat then your fan should come on around 180 degrees F. or slightly higher. Having the low speed fan come on at 205 F. and the high speed fan (difference is a resistor) come on a 220 F. when you have a 180 F. t-stat is working against yourself.

A-Train

2008 Acura TSX (5AT)
2012 Honda Ridgeline RTL (w/Navi)

Ex toy: 1995 T-Bird LX - ALLEN supercharged, 2000 Mustang GT 4.6L PI engine, lot's of goodies...
12.74 @ 109.45 mph (BEST E.T. BEST MPH)
325 RWHP/380 RWTQ (SAE) on a dynojet
Tuned by Jerry W. from SCT
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