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BlowBy
Dodge Dakota
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10/09/2005
17:59:46
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 Subject: Tuning a Supercharged Motor
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I am about to install a powerdyne supercharger with 9# and the FMU.
How do will I tune it? Also does any one know of any o2 sensors i should upgrade?
Thanks for the help
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toolfan
Dodge Dakota
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10/09/2005
20:59:59
| RE: Tuning a Supercharged Motor
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good luck with the powerdime and penny and nickel too. my buddy has the powerdyne and that thing sucks. the thing dosen't even line up right and eats belts. the 9 lb pulley will make a huge difference in preformance just watch the tranny they don't like the added preformance.
personly i prefer my leaf blower over the powerdyne. that leaf blower under the hood costed me nothind and work amazing. i just hit the dash board switch and wala an extra 50hp at the wheels.:)
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Craig
Dodge Dakota
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10/09/2005
22:16:38
| RE: Tuning a Supercharged Motor
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I've not heard anything specifically about the powerdyne charger until now. I was always fascinated by them because of the lack of a need for an oil return line.
This is probably a question for Powerdyne's tech support, but as far as I know they're supposed to give you a chip that takes care of mostly everything. I think maybe a heat range or two cooler on the spark plugs if you run into problems with the existing plugs, but otherwise it's pretty much a bolt on deal.
A centrifugal blower isn't doing much below 3,000 RPM, so it's generally not a big deal for emissions, and other tuning etc. If I'm not mistaken, the 6 PSI kit doesn't even require a chip, although I could be mistaken.
Hope this helps.
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crow318
Dodge Dakota
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10/10/2005
08:44:35
| RE: Tuning a Supercharged Motor
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The best way to tune the truck is to find a dyno that will let you test and tune. I installed a procharger with a digital FMU. I made about 10 runs on a dyno for $100 + tax. should have paid cash ;)
They will have all the sensors you need. I used IAT, Manifold Pressure, and Wideband O2.
The second best way, is to purchase a wideband o2 sensor kit which should include a control box so that you can record the readings. Then take them into a computer to get a fuel curve. Make adjustements and repeat until you get the proper A/F. The initial cost of this kit is what makes it the second best option. Of course, keep in mind that once you buy the kit you can use it as often as you need. At a cost of $100+ per dyno session, you can only go 3-5 times for the same cost as the wideband setup.
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toolfan
Dodge Dakota
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10/12/2005
20:56:53
| RE: Tuning a Supercharged Motor
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Craig is right on the chip we where running my friends r/t and that thing was hitting the rev limiter in 1st, 2nd, and 3rd killing the 1/4 mile time. he only ran 15.56 and thats with the powerdyne #9 and no cats with headers and hooking up of the line. that truck was taking abuse that night.
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BlowBy
Dodge Dakota
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10/12/2005
22:19:15
| RE: Tuning a Supercharged Motor
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I am interested in the Digital FMU and the wideband o2 setup who makes them?
Thanks!
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Captain S/C
Dodge Dakota
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10/13/2005
00:07:40
| RE: Tuning a Supercharged Motor
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Dude, no disrespect meant. But if you have to ask how to tune a blown motor, you will learn real fast how to rebuild a blown up one. That blown motor requires new fuel curves, timing changes, among other things. Do your homework before getting into it.
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crow318
Dodge Dakota
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10/13/2005
11:16:35
| RE: Tuning a Supercharged Motor
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http://www.innovatemotorsports.com/xcart/customer/product.php?productid=16166&cat=252&page=1
Thats the one I was looking at. I opted for the Dyno runs instead, based on how much cash I had at the time.
How does the FMU on that kit work? Some are not adjustable. Make sure it is before you spend money on something that you can't adjust.
For Ignition timing, your options are limited. A box like the MSD-6462 let you adjust the timing based on boost levels. With a supercharger, you may get away with using a box that only has adjustment based on RPM's because the boost is linear in comparison to the RMP's
That box is going to be my next purchase. I don't currently have a problem with the stock computer, but I am looking to run 2 psi more soon.
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