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Ford Truck Club Forum > FORD F-100 | F-150 SERIES > 1992-1996 Ford F150



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  #1  
Old June 28th, 2013, 11:24 PM
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Default PCM Upgrade

I own a 1992 F-150 and i already know i dont have a full ECU but I do know that I have a basic PCM and also I know that Summit Racing can build me a chip have any of you done this not specifically for Summit but in general and what can a chip do on my truck, can it compensate for a bigger cam, get rid of unnecessary stuff ect. Any feedback will be most appreciated.
  #2  
Old June 29th, 2013, 01:17 AM
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The only reason you don't have an ECU is because you have a PCM, the only difference is that a PCM controls the transmission as well. I am not a fan of chips at all because they are normally completely useless and cause more damage than anything. MAF can compensate for most of the cams out there, but if you get something extremely aggressive that MAF can't compensate enough for then you need a tune, not a chip. Keep in mind that if you get a cam that is THAT aggressive you'll need to do all the upgrades I mentioned in your other thread.


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.


  #3  
Old June 29th, 2013, 01:34 PM
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Ok well what is aggressive because im only planning to upgrade to a lift of about .450 from the stock .400
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Old June 29th, 2013, 05:08 PM
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Stock cam specs:

if you are only going .050 more or so in lift than a tune won't REALLY be needed. It'd get some more performance, but it won't be needed. Concentrate on your heads and exhaust for now. The 5.0 intake is actually very good, so it won't need to be upgraded. Your E7's (heads) and exhaust need the most loving.


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.


  #5  
Old June 29th, 2013, 08:03 PM
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Well what 'loving' do you think would be good for my heads, I already know what im doing for exhaust.
Just one reason this is getting frustrating is information I've been told over and over that stock lift is .400 but according to your photo its .237 but in that case if I go to a cam that has a lift of .280 or something similar a MAF swap is not needed.
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Old June 29th, 2013, 09:20 PM
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Also can a new MAP sensor be an option just wondering?
  #7  
Old June 29th, 2013, 11:40 PM
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If i may intervene, The .400" lift would be the valve lift. Whereas the .237"/247" above will be the lobe lift. To get valve lift from the lobe lift number you have to multiply it by the rocker ratio. The stock ratio for these trucks is 1.6. So .237"x 1.6 = .379" intake
.247"x 1.6 = .395" exhaust

A somewhat inexpensive route to get extra lift would be to install some 1.72 roller rockers. You can get them for under $200 from Jeg's. With the stock cam you will have .4076" intake and .4248" exhaust. You can run the 1.72's with stock springs if they aren't old and wore out. Since you plan on giving the heads some "lovin" this will be a non issue.



1994 F150 XLT ExCab SB 306, 4R70w, 8.8 3.55 open, MSD StreetFire coil, Taylor Siro Pro wires, MSD cap and rotor, 1.72 Roller Rockers, 2º cam advance w/ Cloyes Street True Roller timing set, Flat top Hyperutectic pistons, Flowtech Long Tube headers, Xpipe, High flow Magnaflow converters, Spintech XL Sportsman DIDO muffler.

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Old June 30th, 2013, 12:25 AM
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Thank you so much biker starting to make some frakin sense now thank you once again.
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Old June 30th, 2013, 12:55 AM
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Aight Booba I am looking into so parts for the six liter tune you were talking about so far I have:
Accel 0276S-4 - ACCEL C-Cut Performance Spark Plugs
Accel 140012 - ACCEL Ford EEC-IV Super Coils
Accel 9022 - ACCEL Extreme 9000 Ferro-Spiral Spark Plug Wire Sets
All of these are to your specs in my other thread the plugs are copper the wires are 8mm the largest Summit had.
Are these ok by your standards Im trusting you on this one so get back to me also if you can reply to my other posts it would be appreciated.
  #10  
Old June 30th, 2013, 01:22 AM
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Autolite or Motorcraft copper spark plugs work best in these engines, so I'd save the money on those Accels. Other than that, looks good. As far as the heads, if you are going with a small lift increase (like with rockers, like Biker mentioned) they'd flow a lot better with a standard port\polish job and fresh valve springs. If you are going to get anything bigger than that then it all starts with the cam you choose. Your valve springs need to match your cam. Either way a port and polish would help the most, given you have a well flowing exhaust.


Oh and Biker couldn't have explained it better.


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.




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bikertrash3531 , Booba5185 , brick13 , bronco40 , FlaMarkiii , glc , JSoko , judd94 , lanejesse85 , Moore1991bronco , moore6085 , nflfreak43 , polargeek , SlydinClyde , The Frankster

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