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Topic: Back from the Dyno
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greenfuelsafe
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Member # 756
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posted
 
 
I have a 70mm Mass air, 24 lb injectors, 70 mm BBK Throttle Body, fuel pump(Don't know) I get 42 pounds of pressure constantly on my gauge. I just think that the computer is not giving it enough fuel and too much air??
Posts: 83 | From: Danville | Registered: Jan 2002
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greenfuelsafe
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Member # 756
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posted
Fuel Regulator is a Paxton. I could have 19lbs injectors. They are blue though. I have a set of 24 if that is the problem. Could need a fuel pump though? I'll go with the chip first. Stock computer running mods, they told me that isn't good. I am going to get my MAF calibrated and check codes too.
Posts: 83 | From: Danville | Registered: Jan 2002
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Stimson
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Member # 51
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What kind/brand 70mm MAF do you have? Are you sure its calibrated for 24 lbs injectors? I'm willing to bet it isn't. What error codes does the EEC give you? How much power did you make and can you post the graph?
Posts: 2373 | Registered: Jun 2000
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greenfuelsafe
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Member # 756
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posted
I have a ford motorsport MAF. The graph was ugly. Not a bell curve. Very jagged. It looked horrible. Still made 232rwhp and 250 torque. I'll post the graph later. Don't have it on me. I'm going back in the beginning of Feb. for chip, tune, and dyno.
Posts: 83 | From: Danville | Registered: Jan 2002
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greenfuelsafe
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Member # 756
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posted
40/42 is idle. WOT is in the 50's. Could I keep the FM MAF. Have it fooled with the chip for 24lbs injectors and still gain 35-40 rwhp?
Posts: 83 | From: Danville | Registered: Jan 2002
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Stimson
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Member # 51
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Yes, you *can* "trick" the EEC with a chip to run the 24 lbs injectors with a 19lbs MAF, but I wouldn't do it. Your combo is very mild, and has minimal RWHP to gain from a custom chip vs good old fuel pressure and timing tuning. The most cost effective way is to get a 24 lbs MAF, take your car and your timing to the track one day and play with the fuel pressure and timing to get the highest trap speeds. Going the $500 custom chip/dyno tune route also works.... as usual there is more than one way to skin a cat.
Posts: 2373 | Registered: Jun 2000
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greenfuelsafe
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Member # 756
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posted
I'm confused. When you say get a new 24lb MAF. Are you saying get a C&L 76mm or Pro M 75mm and a new computer? I thought that the mass air comes calibrated for 24lbs injectors, but how can the computer recognize this? If I just by the inlet tube and a new air flow sensor, it doesn't come with a new computer calibrated for the MAF. Won't I need the chip anyway if I change? Can you straighten me out on this shit?
Posts: 83 | From: Danville | Registered: Jan 2002
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Stimson
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Member # 51
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Here is what I would do in your shoes:1) Buy a Pro-M Mass Air meter calibrated for 24 lbs injectors.
2) Sell your 70mm MAF
3) Take it to the track and play with timing and fuel pressure to get the maxiumim MPH.
Plan B would be:
1) Get a custom chip dyno tune from BYRON (not Terry). Tell him you have 24 lbs injectors and a FMS 70mm 19 lbs MAF.
I don't like Plan B because as a rule of thumb, you shouldn't correct hardware issues (wrong MAF) with software (custom chip) if you can help it
Posts: 2373 | Registered: Jun 2000
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Gear Head
JARED
Member # 779
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posted
GreenFuelSafe let me now when you go back to Mustang Ranch and maybe i'll go with you if you want some company. 
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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Gear Head
JARED
Member # 779
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posted
Put Pulleys on that night and there great thanks again!
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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greenfuelsafe
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Member # 756
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posted
WTF What's up with my triple post!! Sorry about that.
Posts: 83 | From: Danville | Registered: Jan 2002
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1SLOWLX
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Member # 558
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posted
if your injectors are blue they are already 24# ones the 19#ers are yellow the thirty pounders are red and so on
Albert
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Built Tuff with your stuff ;)
Posts: 5231 | From: bay area | Registered: Nov 2001
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