4.2 chip..Mike?
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
Hi jr leal,
Second question first, hands down it's the Superchip. They're doing the best job on these vehicles, and they're the only company tuning at all throttle postions so you have power gains all the time, at any throttle position or rpm, while still maintaining strict 50-state emissions certification.
With regardfs as to whether or not it's too late to start adding performance parts to your 4.2 V-6 at 119K miles, that's going to depend on a few thigns. First, is the engien generally healthy, and not using an appreciable amount of oil between oil changes?
Next, how has it been maintained, are the spark plugs, plug wires, fuel filter, PCV, O2 sensors etc. all in good shape?
If all of the above is basically OK< and you aren't getting any strange sound, noises, knocks, and no fuel or oil leaks, then yes, you can start doing a few bolt-on modifications like the Superchip.
One thing to remember is that you don't want suddenly start driving the vehicle much harder at 119K miles, though if it's healthy you might be able to get away with it. In other words, if this is a used vehicle that you just recently picked up and thus do not know it's service history, I'd want to make sure all your normal maintanence items are taken care first, and know it's healthy, I.E., not using oil, etc. before doing any modifications. One the other hand, if you are the original owner then you already know if it's been maintained properly and if it's basically in good general "health", you already know all of that.
If you aren't sure, please feel free to give us a call and we'll go over that with you. In general, with routine maintanence, today's 4.2 V-6 engines should give you roughly about 150,000 - 175,000 miles of service life before major overhaul. Some people are getting 200K miles and more. The point being, an engine is not on it's "last legs" at 100K miles like they used to be. 100K miles used to be the real death toll number for most vehicles, and that just isn't true anymore. Today's useable service life has been increased by 50%-100% over vehicles made up thru the early 80's or so, thanks to advances in lubricants, metalurgy & assembly techniques.
With regards to the timing, the Superchip handles all of that; on older engines that have adjustable initial advance, the timing is set as per the original factory spec, and the Superchip is programmed to control spark curves based on that original factory spec.
To go over this in detail, just give us a quick call, & we'll be happy to go over your vehicle's basic health with you, & just what you want to do, how the vehicle is being used, etc.
Second question first, hands down it's the Superchip. They're doing the best job on these vehicles, and they're the only company tuning at all throttle postions so you have power gains all the time, at any throttle position or rpm, while still maintaining strict 50-state emissions certification.
With regardfs as to whether or not it's too late to start adding performance parts to your 4.2 V-6 at 119K miles, that's going to depend on a few thigns. First, is the engien generally healthy, and not using an appreciable amount of oil between oil changes?
Next, how has it been maintained, are the spark plugs, plug wires, fuel filter, PCV, O2 sensors etc. all in good shape?
If all of the above is basically OK< and you aren't getting any strange sound, noises, knocks, and no fuel or oil leaks, then yes, you can start doing a few bolt-on modifications like the Superchip.
One thing to remember is that you don't want suddenly start driving the vehicle much harder at 119K miles, though if it's healthy you might be able to get away with it. In other words, if this is a used vehicle that you just recently picked up and thus do not know it's service history, I'd want to make sure all your normal maintanence items are taken care first, and know it's healthy, I.E., not using oil, etc. before doing any modifications. One the other hand, if you are the original owner then you already know if it's been maintained properly and if it's basically in good general "health", you already know all of that.
If you aren't sure, please feel free to give us a call and we'll go over that with you. In general, with routine maintanence, today's 4.2 V-6 engines should give you roughly about 150,000 - 175,000 miles of service life before major overhaul. Some people are getting 200K miles and more. The point being, an engine is not on it's "last legs" at 100K miles like they used to be. 100K miles used to be the real death toll number for most vehicles, and that just isn't true anymore. Today's useable service life has been increased by 50%-100% over vehicles made up thru the early 80's or so, thanks to advances in lubricants, metalurgy & assembly techniques.
With regards to the timing, the Superchip handles all of that; on older engines that have adjustable initial advance, the timing is set as per the original factory spec, and the Superchip is programmed to control spark curves based on that original factory spec.
To go over this in detail, just give us a quick call, & we'll be happy to go over your vehicle's basic health with you, & just what you want to do, how the vehicle is being used, etc.