I have recently purchesed a 1990 F150. Within the first week i put a k&n cold air intake and a new exhuast, but im still looking for a little more power. I came across this perf chip called race mod that aparently tricks the computer into voidin all of the governer codes. It say it increases 20+ hp and 12ft/lbs of torqe.I was wondering if any of you guys know if its any good or if its just a scam. any advice would help.
Thanks

 

Take a look at this post:
https://www.ford-trucks.com/forums/5...nics-here.html

 

Well for starters there is nowhere to put "a chip" on the 1990 EEC IV computer. There is a service port, but to utilize it some additional hardware/software is needed. Many of the hot rod chips just advance the timing and then require you to run premium fuel.. not always the most cost effective thing to do. You can get the same results just by turning the distributor a few degrees.

 

if you are going to spend money on a chip and you all ready spent some on an intake, what goes in must come out. You are better of spening it on an exaust system, Iwent headers and 3"single sytem and am very happy. It sounds awsome and looks good too, and noticed a bit of performance differance

 

conanski is right on, save your money and get some headers an bassani y pipe. maybe upgrade the cam etc.. is this a 2wd or 4wd

 

Mace,

These "chips" don't fool the computer per say. They are part of a module that plugs into the J3 test port of you computer. When that port is used the computer bypasses the onboard memory where the control tables are stored and looks at the port instead.

Conanaski is correct to a point. Most of the cheap off the shelf chips are doing you any favors. They are either advancing the timing or increasing the duty cycle of your injectors (over fueling). Sometimes both. The advanced timing is forcing the need for higher octane to reduce/prevent dentination.

For about the same money as one of these "chips" you can get noticable improvements without the need for high octane fuel.

Hopefully the new exhuast you but on is less restrictive than the stock system.

Some will say to replace the stock airbox assembly with one of the aftermarket kits. Not really needed. The stock box just needs a little attention payed to reduce the baffling restrictions and a better flowing filter.

Add a hotter coil and supporting TFI module on the distributor. Then open the spark gap from stock .045 to .050-.060 (depending on the coil) to take advantage of the hotter spark.

Pull the codes from the computer and fix as required.

You should see a noticable improvement in throttle response, horsepower, and torque. If you can keep your foot out of it, an improvement in mileage as well.


I'd stay away from changes to the computer until you start changing things like the cam. Then work with a good dyno shop for a custom tune that will match you mods.

 

hey guys i got a 94 f150 2wd auto with a 5.0 now i have been reading a lot about people saying opening up your plug gaps to .5 to .6 well i am wondering why they are saying that stock is .045 cuz it is not .52 to .56 is actually stock so that is why when you guyz open your gaps from .40 to .5 to .6 it is such a noticable increase in a lot of things. Thats cuz ford designed our engines to run a plug with a .52 to .56 gap

 

I think if you open up the gap much more than stock on a stock engine your pistons will be mad at you.

 

yah i bet they would be but the point i am trying to make is that everybody thinks that the stock gap is .044 so then they think they are opening it up bigger than stock to .056 when in reality that is stock and when they open it up to stock their truck does run better because the gaps are at what the computer was designed for

 

maremont pn# M30001 3" mandrel bent tailpipe for 66-96 F-series pickups/broncos. Side exit behind the pass. side rear wheel. $37.04 CDN

put a new y-pipe infront of that. I think the catco ones have larger pipes than the bassani. Could be wrong tho.

 

Unless you've increased the coil output openning the spark gap greater that stock isn't such a good idea. You may actually cause a reduced fuel burn. But... if you've increased voltage then openning the gap can be benficial because you'll get a slightly incease ignition area and improve burn effiecency. Marry that with improved intake and exaust flows and you'll get better performance and economy.

 

I don't know about the other engine options but the stock 4.9 gap is .042-.046. Says so on my hood sticker

 

well i got a 5.0 and my hood says in between .052 and .056 so

 

Ok cool. Slap some .056's in and burn some rubber!

 

ha yah actually i got 35s and am only gapped to .54 and can still burn rubber so hey every start gapping there plugs to .54 you will get hecka more horses and torque. Oh wait i forgot the reason i can burn rubber is cuz i actually gapped my plugs to the right setting. huhh so if mine are gapped like ford says to then maybe if every one else gaps like ford says to they will get the original performance ford said they would wow what a concept ford engineers acually were on to something. No Ford can't know whats best for their engine. oh well