Thanks Hey You I am not looking for anymore hp at all,,, just want to not having to change bolts again,,, such a pain in the butt,,, This time I am replacing both front fenders at same time so should be fairly easy with nothing in the way,, Thanks again

 

Take a chill pill, no need to reply in bold. The bolts also break in the Durangos and Grand Cherokees. I'm not sure what the diff is with the chargers and challengers but they don't seem to break as often or if at all. As far as tuning goes, shorties should not need tuning as long as the engine is in good shape. The shorties will change the combustion characteristics of the engine. After entering closed loop performance, some of the vehicles calibrations may be on the edge of the circuits ability to compensate. These circuits are designed to compensate for the typical variances of the different components used. Other parameters considered are the condition of the engine components (injectors, spark plugs, O2 sensors, cam wear, etc.), engine load as well as the Air density. Under some extreme conditions, the circuits cannot compensate enough for the variances and can throw CELS.

When you get a tune, all of the above are taken into consideration and new tables are used "re-center" the calibrations and provide for most efficient performance under all conditions.

By the way, I've spent many years designing, testing and implementing these circuits.

have a good day,

 

Work for Dodge by any chance? If so, could you tell me why the never bothered with a knock sensor?? GM has had 'em since the 80's.... Not like its new technology.

 

The hemi has two knock sensors, bank1 and bank2. I'm not sure what you are referring to. They can be accessed from underneath and are pretty easy to change. Never worked for Dodge, I worked for a company owned by GM when much of the electronics were being modernized.

Do you own a gen4 Ram? if so are you running shorties and what has been your experience. I've never run shorties only long tubes and I did manage to fry a 1967 mustang with the 289. The only way to fit those headers was to add a special bracket to move the power steering piston out of the way. Anyway, I ran the headers with corvair mufflers, dumped the exhaust under the rear seat without tuning the holley (I just left it alone for one day). The rings got too hot and when I went to start it the next day, you could hear the rings scratching the cylinders. I rebuilt that engine myself.

Growing up in southern Cal, late sixties and early seventies I played around with many vehicles. The Los Angeles area was a hotbed of innovation then. Edelbrock was nearby and still is. Iskenderian cams is still nearby. Bill Simpson and Gasoline Alley was local, Lyons dragstrip was local, J.C. Agajanian was local. We used to know guys that would make you custom headers and grind cams for any vehicle.

Those were fun times.......

 

AH, so the newer ones actually have 'em. Good to know. (glad chrysler finally got with the program.)

I have a second gen, the 98 in my sig, had a 96 with the 5.9 prior to that. Neither has a knock sensor, and the V-8s REALLY could have used one...... would have solved a lot of problems on them.....

I think we are close in age..... Though I didn't start driving till the mid 70's. (at least, driving legally......) I remember those days as well, back when their were automotive machine shops almost everywhere, and there were a couple custom header shops within spittin' distance..... and the custom car shops. They are ALL gone now. If I want machine work done, gotta send it out to Jackson.... (about 40 miles away.) and wait...... Dirt tracks are rather popular here in the summer, and when they are 'in season', the machine shops are buried in work. You can look forward to waiting 6 weeks or more to get something done. It sucks. I remember fondly the days when I could carry in my parts, drop 'em on the counter, and come back later the same day to pick them up...... Oh well.

I suppose if I REALLY needed something done quickly, I could road trip to detroit..... (less than 100 miles away) But, that's a lotta drivin'. Fortunately, I don't do the wrench-turnin' thing for a living any more, so, it really isn't much of an issue.