Intake/Exhaust mods
Cbpcop
12-26-2007, 09:32 AM
Good Morning Everyone,
Need some advice before I get carried away and blow a bunch of $$ without decent results. 1st: Have read an article on www.4x4wire (http://www.4x4wire) site about a header installation for a 2.7 ltr motor + exhaust system with what seems to be a practical review of the results. Is a header a worthwhile modification for this vehicle for a daily driver. Some say yes and others say it's a waste of $ with virtually 0 return on HP and Torque (although I don't see how).
2nd: Have also read about the "deckplate mod". Also seems like a much less expensive alternative to the K&N intake system (although not as attractive). Is this as effective as the K&N setup? Also - one comment (different forum) stated that the K&N rig will screw up the MAF. Why? I'm out of my league on this one and could really use some practical advice here.
3rd: Is it advisable/feasible to flush a crankcase with a mixture of lube oil and diesel fuel to clean out the engine and pan when doing an oil change on a high mileage engine (78000)? And finally: What is the mileage threshold for changing the timing belt/chain (not sure which my engine has - have never opened it up) before getting into risky territory before it snaps?
Thanks everone!!! Have a Merry Christmas and a Happy New Year!!!
Need some advice before I get carried away and blow a bunch of $$ without decent results. 1st: Have read an article on www.4x4wire (http://www.4x4wire) site about a header installation for a 2.7 ltr motor + exhaust system with what seems to be a practical review of the results. Is a header a worthwhile modification for this vehicle for a daily driver. Some say yes and others say it's a waste of $ with virtually 0 return on HP and Torque (although I don't see how).
2nd: Have also read about the "deckplate mod". Also seems like a much less expensive alternative to the K&N intake system (although not as attractive). Is this as effective as the K&N setup? Also - one comment (different forum) stated that the K&N rig will screw up the MAF. Why? I'm out of my league on this one and could really use some practical advice here.
3rd: Is it advisable/feasible to flush a crankcase with a mixture of lube oil and diesel fuel to clean out the engine and pan when doing an oil change on a high mileage engine (78000)? And finally: What is the mileage threshold for changing the timing belt/chain (not sure which my engine has - have never opened it up) before getting into risky territory before it snaps?
Thanks everone!!! Have a Merry Christmas and a Happy New Year!!!
Chad82
12-28-2007, 02:27 PM
not sure about the 2.7, but on the 3.4, it seems like short of S/Cing, any mods are essentially a waste of money. Once its S/Ced then additional mods give compounding returns. I would guess it is a similar situation on the 2.7.
kris
12-28-2007, 03:56 PM
Good Morning Everyone,
Need some advice before I get carried away and blow a bunch of $$ without decent results. 1st: Have read an article on www.4x4wire (http://www.4x4wire) site about a header installation for a 2.7 ltr motor + exhaust system with what seems to be a practical review of the results. Is a header a worthwhile modification for this vehicle for a daily driver. Some say yes and others say it's a waste of $ with virtually 0 return on HP and Torque (although I don't see how).
2nd: Have also read about the "deckplate mod". Also seems like a much less expensive alternative to the K&N intake system (although not as attractive). Is this as effective as the K&N setup? Also - one comment (different forum) stated that the K&N rig will screw up the MAF. Why? I'm out of my league on this one and could really use some practical advice here.
3rd: Is it advisable/feasible to flush a crankcase with a mixture of lube oil and diesel fuel to clean out the engine and pan when doing an oil change on a high mileage engine (78000)? And finally: What is the mileage threshold for changing the timing belt/chain (not sure which my engine has - have never opened it up) before getting into risky territory before it snaps?
Thanks everone!!! Have a Merry Christmas and a Happy New Year!!!
First. A header and exhaust will yield something, but is it worth it? For the amount of horsepower per dollar, probably not.
Second. The deck plate mod is simply a inexpensive way of allowing the intake to draw in more air to the air box. Is it better than a K&N filter? Eh, probably not. Cheaper? Yes. If you do the deck plate mod, make sure to at least get a better air filter element. The story behind the K&N filter ruining the MAF is due to over oiling. It will not screw it up, just cause it to get dirty, quicker. This is due to an over-oiled filter. It is as simple as this oily residue coating the MAF sensor. Two ways can fix this. Do not over oil your filter when cleaning it, and use a cleaning product safe for MAF sensors. There are other dry filter options out there, which can prevent that problem.
Third. I have never heard of a diesel mixture used to flush your oil. There are plenty of products on the market that have been proven to work. Seafoam is a big one, as well as B&G products. Seafoam is coverd in the FAQ (http://www.automotiveforums.com/vbulletin/showthread.php?t=359043) posted at the top.
Your engine has a timing chain. I am not sure on a recommended service on the chain. Typically the chain guides wear out before the chain fails. A quick call to a dealership could answer that question.
Need some advice before I get carried away and blow a bunch of $$ without decent results. 1st: Have read an article on www.4x4wire (http://www.4x4wire) site about a header installation for a 2.7 ltr motor + exhaust system with what seems to be a practical review of the results. Is a header a worthwhile modification for this vehicle for a daily driver. Some say yes and others say it's a waste of $ with virtually 0 return on HP and Torque (although I don't see how).
2nd: Have also read about the "deckplate mod". Also seems like a much less expensive alternative to the K&N intake system (although not as attractive). Is this as effective as the K&N setup? Also - one comment (different forum) stated that the K&N rig will screw up the MAF. Why? I'm out of my league on this one and could really use some practical advice here.
3rd: Is it advisable/feasible to flush a crankcase with a mixture of lube oil and diesel fuel to clean out the engine and pan when doing an oil change on a high mileage engine (78000)? And finally: What is the mileage threshold for changing the timing belt/chain (not sure which my engine has - have never opened it up) before getting into risky territory before it snaps?
Thanks everone!!! Have a Merry Christmas and a Happy New Year!!!
First. A header and exhaust will yield something, but is it worth it? For the amount of horsepower per dollar, probably not.
Second. The deck plate mod is simply a inexpensive way of allowing the intake to draw in more air to the air box. Is it better than a K&N filter? Eh, probably not. Cheaper? Yes. If you do the deck plate mod, make sure to at least get a better air filter element. The story behind the K&N filter ruining the MAF is due to over oiling. It will not screw it up, just cause it to get dirty, quicker. This is due to an over-oiled filter. It is as simple as this oily residue coating the MAF sensor. Two ways can fix this. Do not over oil your filter when cleaning it, and use a cleaning product safe for MAF sensors. There are other dry filter options out there, which can prevent that problem.
Third. I have never heard of a diesel mixture used to flush your oil. There are plenty of products on the market that have been proven to work. Seafoam is a big one, as well as B&G products. Seafoam is coverd in the FAQ (http://www.automotiveforums.com/vbulletin/showthread.php?t=359043) posted at the top.
Your engine has a timing chain. I am not sure on a recommended service on the chain. Typically the chain guides wear out before the chain fails. A quick call to a dealership could answer that question.
fourwd1
12-28-2007, 11:04 PM
A header and exhaust system will ususally give pretty good results, and is a good place to start if you plan on doing more.
I've heard of several mixtures to flush the crank case, including kerosene, which is really close to deisel. One of the OTC products maybe better, as you don't have to guess on mixture ratios.
Timing chains are usually suposed to be replaced around 90K or so. I've run TCs on 22R series engines to 120-130K before replacing, but the guides usually go before that. A worn TC can also wear a hole thru the TC cover, and then you have coolant and oil mixing.
I've heard of several mixtures to flush the crank case, including kerosene, which is really close to deisel. One of the OTC products maybe better, as you don't have to guess on mixture ratios.
Timing chains are usually suposed to be replaced around 90K or so. I've run TCs on 22R series engines to 120-130K before replacing, but the guides usually go before that. A worn TC can also wear a hole thru the TC cover, and then you have coolant and oil mixing.
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