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samtheman
Dodge Dakota
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2/14/2004
10:08:46
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 Subject: 5.9 did not ping first summer! I have a
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Magnaflow cat back on now. I've read on a Dak forum that with headers and cat it may run to lean and start to ping. Will this happen? May it happen? Thank you!
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PT BARNUM
Dodge Dakota
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2/14/2004
11:22:37
| RE: 5.9 did not ping first summer! I have a
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Another sucker for an "Internet Story"
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dumb@ss
Dodge Dakota
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2/14/2004
21:32:31
| RE: 5.9 did not ping first summer! I have a
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Excuess me for being very ignorant. What is ping. Just a juess is it valve noies?
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islander
Dodge Dakota
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2/14/2004
23:12:29
| RE: 5.9 did not ping first summer! I have a
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headers and exhaust will not cause pinging on the 5.9.
still have the beer barrel intake manifold?
if your belly pan is blown (and that is very common)..then is most likely the cause.
take your air hat off and look in the throttle body with a flashlight, if you see a small puddle of oil..there is your cause.
replace your intake manifold with a m1 2bbl intake manifold(mopar)...it'll fix the problem and give you 40-50 more hp and tq than you are getting with the stock manifold on the top end and still keeps most of the low end.
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Ian
Dodge Dakota
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2/14/2004
23:36:05
| RE: 5.9 did not ping first summer! I have a
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from the huguhesengines website:
"To give you some idea of lengths, the stock magnum intake has runners about 16" long. Our Stage I runner has about 14" long and our Stage II is 12". If the runners get much shorter you will get dips in your power band. The Mopar Performance Magnum M-1 intake is basically a carbureted intake with injector bosses and is designed for non-roller, flat tappet or roller cams with power bands from 5500 RPM and up. The runner length is barely 4.75" long -- much too short for hydraulic, roller cam power bands, which are generally below 6000 RPM. If you plan on only racing at the drag strip with lots of gears and stall--this is the manifold. If not, be careful or you'll lose your entire bottom end and mid-range torque. Our intakes also have the Plenum volume reduced for better throttle response. Our Stage II throttle body and Stage II intake are making 425/450 HP at the rear wheels with our HER1824AL cam and Stage II heads."
This seems to directly cotnradict what you say Islander, my money is on the professional mopar engine builders.
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gen1dak
Dodge Dakota
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2/15/2004
12:37:39
| RE: 5.9 did not ping first summer! I have a
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Ian, you overlook the fact that any organization that has something to sell will skew the fact to their favor. After all, Hughes has the kits that secure the belly pan gaskets on the beer keg intakes. Better yet, they offer services to modify the OEM intake and add the kit for the gasket as well. On the other hand, MP does have the M1 to sell, so who do you believe? All said, the beer keg isn't used at full capacity with stock cams, as seen with cam upgrades (Magnum RT cam)before there were Magnum M1's were available. These engines responded to the improved breathing of the cam despite having the beer keg. For the record, the 2-barrel MPI intake has an operating range rating of 2,000-5,800 rpm, meaning it makes best power in that range. This, even according to Hughes, is well within the range of hydraulic, roller-cammed engines.
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islander
Dodge Dakota
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2/15/2004
14:39:20
| RE: 5.9 did not ping first summer! I have a
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??they "might" be talking about the m1 4 bbl on a light modded 5.9...which by consensus is better for a blower setup...debatable maybe.
I have a dyno sheet from my own truck..and dyno sheets from others PROVING the validation of the m1 2bbl on essentially stock 5.9's.
if you want..go to the delphi r/t forum.
You'll find r/t's in the 13's..some low 13's with the m1 2bbl...N/A.
with my mods i have no doubt my extreme low end is equal or greater than, and mid-top end is much stronger than stock.
kn gen2
fb 50mm tb
mopar pcm
gs headers
spintek 2.5" true duals.
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islander
Dodge Dakota
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2/15/2004
14:49:02
| RE: 5.9 did not ping first summer! I have a
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add the m1 2bbl intake manifold.
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ummm
Dodge Dakota
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2/15/2004
17:31:51
| RE: 5.9 did not ping first summer! I have a
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I think a lot of people miss the point on the M1 vs beer keg debate. No one has said that the M1 will not make your truck turn quicker 1/4 mile times. After all when you are drag racing you are basically holding the throttle wide open. On the other hand, many, many people have complained about driveablity issues after installing the M1. Loss of low-end, lack of throttle response, etc. It depends on what you are after. Do you want to race Mustangs or do you want to improve performance while not totally sacrificing drivability. To bad everyone gets emotional and defends their choice without thinking. All people are looking for is information so they can make a decision based on what they need/want.
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islander
Dodge Dakota
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2/15/2004
21:14:54
| RE: 5.9 did not ping first summer! I have a
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ummm
there is no one with an r/t complaining of low end loss/driveability issues or loss of throttle response with the m1 2bbl.
you got a vacumn leak on your m1 equipped 5.9?
maybe a bad o2 sensor? Cat clogged?
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ummm
Dodge Dakota
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2/15/2004
22:21:12
| RE: 5.9 did not ping first summer! I have a
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Bullfeces. The problem is so common that somebody came up with the ignorant "turtle" band-aid solution.
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islander
Dodge Dakota
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2/15/2004
22:38:16
| RE: 5.9 did not ping first summer! I have a
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the turtle does'nt make much difference.
It moves the torque peak a couple hundred rpm maybe...mid rpm torque will feel stronger at expense of top end torque.
I tried all 3 sizes. you?
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92o5.9
Dodge Dakota
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2/16/2004
19:16:39
| RE: 5.9 did not ping first summer! I have a
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Actually the driveablilty issue can be corrected with a better torque converter and deeper gears (which are optional). The problem is laid out within the operating range of the manifold itself. You have to add certain components to complement the manifold, or your going to have the feeling of low end loss.
It should be required to add a cam, or 1.7rr, and a converter when adding the M-1. If everyone did that, you would hear nothing but good praises from the M-1.
I tried the M-1 on my 318, before opting for a 360. This was on a stock truck with only external bolt ons: Mopar PCM, throttle body, and MSD ignition. I was impressed with the performance, however, when I added the 1.7 rockers, and Mopar converter it was a totally different truck. Those parts added the missing link to totally gain maximum performance of the M-1.
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