Im in the market for a chip. I have a 98 V6 5 speed. I have recently switched to a 255/35/20 tire. Now that my speedo is out of whack, will a chip fix this? Also i am planning some serious engine mods this winter, when do i have to get a chip reburned? What would it do if i drove it with thesemods, would the fuel system suffer?

 

Hi jabtay,

Because Ford conveniently used a standard speedometer gear in the F-150 up thru and including the 1998 model year, correcting your speedometer is very easy and inexpensive, too. Just replace the current speedo gear with one that has the corrrect # of teeth. That can be obtained or ordered thru any Ford parts counter for not more than $20, and less in many cases. Takes only 10 mintues to do the change, the speedo gear is located under a little "door' on top of the tailshaft of your transmission, very easy to do. That way, your speedometer will be corrected whether the vehicle is running on the original factory program or with the Superchip.

If you give us a call with the number of teeth on your corrent speedometer gear and how far the speedometer is off at 50 mph(or give us the original and the new tire heights along with # of teeth on the current speedo gear), we can go over this with you to help you determine how many teeth you will need on the new speedo gear.

To be able to answer the question of needing to have the Superchip reprogrammed after you do engine modifications, that depends on just exactly what modifications you are doing to the engine.

Since you have a V-6, any significant engine modifications will generally also cause a need to install larger fuel injectors and a larger fuel pump as well. Give us a call and we can go over all of this with you in detail, as we'll need to know just what modifications you plan on doing to get an estimated power level, then we can do the math and determine fuel pump, injector size, MAF, etc., that may be needed.

While the stock fuel pump is good for at least 275-280 hp in the 85 l/hr. in-tank units, your stock 19# fuel injectors will not provide enough fuel in a 6 cylinder engine for that power level. At 80% duty cycle, those 19# units will support 228 horsepower @ 39 PSI rail pressure. Pushing the injectors all the way, you can get 250 HP or so from them, but we don't like to push injectors to 100%, that causes additional wear and if one little thing isn't up to perfection, you could go lean under load in the higher gears at higher rpms. So in general, V-6 F-150 owners who want to add more than about 25-30 horsepower should think about upgrading the fuel injectors to be safe.

In general, if you do things like ported cylinder heads, a camshaft change that alters duration, overlap, and/or lobe centers, you'll usually need custom tuning. Things like a forged crank, rods & pistons do not necessarily require program changes, but if you incrase compression ratio or alter valve timing envets or port the heads, etc., as is usually done when doing a forged crank, rods & pistons, then you'll need custom tuning, and we can handle that for you.

The best thing to do is to just give us a call, and let's go over exactly what you're doing right now mods-wise, and what you're thinking of doing over the winter along with how the vehicle is beign used (daily driver, towing, drag strip, etc.), so we can map out a plan of upgrades that are actually needed & go over the costs, when to do exactly what change, etc.

Sounds like this is going to be one fun truck!

 

Pete cambell knows these v6's inside and out. If your looking for a chip he's the man to call.


I got 16rwhp and 12rwtq with my superchip, but he gauranteeing me at more with the same exact setup with his tuning. Of course his chips are custom tuned chips.

www.fordchip.com