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Old 08-02-2010, 06:53 AM   #1
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Has anyone had any experience with a computer chip devise to up the horse power and has anyone had any thing to do with cold air intake systems. I have a speed shop here where I live and this is what they advised that we should do. I have no warranty left on the truck, so I don't think that this will be an issue. I also should tell you I have not weighed my TT but if I were a bettin man, I would beleive it is probibly right at the max. I think it has to be my wifes hair dryer.



ANy one out there have any ideas?
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Old 08-02-2010, 07:46 AM   #2
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How many mi. do you have on your tv?
Do you intend to keep your present rv much longer? If there is any thoughts in your mind of going with a new rig in the near future------- with more of---bigger----- and better, then maybe you should consider raising the radiator cap and driving a new diesel under it.
With that all said, I think Bullydog has a program out now for gas jobs.

http://www.bullydog.com/

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Old 08-02-2010, 07:54 AM   #3
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I put a True Flow intake, Magnaflow exhaust and a Superchips Flashpac programmer on my wifes truck (06 Dodge Hemi)and it made a noticeable difference to her in power and throttle response. All I can go on is what she tells me since I never drive her truck. I have about $800 in those mods. There are some gains to be made with gas motors but the more you want the more it cost. Edited by: Hunter11
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Old 08-02-2010, 10:57 AM   #4
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How much do you want to spend ? Exhaust and Intake would be the cheapest, Safest for the $$ I would say. With a 2002 I'm not sure how much a chip would get you. If you could find a place to burn a flip chip I would loook into that. You can have a tow tune, a milage tune I think they can do up to 5 on one.

I bet the heads on that motor are a huge restriction but your looking at $2000 + unless you can do it your self.

Better be kind to that transmision.
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Old 08-02-2010, 11:20 AM   #5
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do you know what the rear gearing is? going with lower gear would make a big difference

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Old 08-02-2010, 11:24 AM   #6
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I opened up my intake snorkle with a poor mans cold air intake. What I did was take the snorkle out of where it went into the fender and got rid of it. It went from 3" dia. to 1 3/4" dia. starving the motor for air. Then I went to Lowes and used rubber and abs plumbing parts to make it 3" all the way through into the fender again. Make sure if you use a rubber end that you cut a piece of solid pipe and rivet or screw it into the end so that the rubber wont collapse when you step on the throttle.



I also got some MAF sensor cleaner from CRC industires and cleaned the heck out of my MAF sensor. It did make a difference.



Also added a K&N air filter.



Then I cut all the air chambers off the intake snorkle that goes to the intake and plugged all the holes so that it is a straight shot with no turbulance to the airflow.



I also went to the junk yard and found a 1995 3.8L Ford Taurus and took the 9 blade fan and motor off the radiator (hot rodders are doing this to just about everything out there 4X4's, mustangs, Jeep's, etc.). Then bought a variable speedFlex-a Lite fan controller. Then I took off my stock clutch fan from the motor and then mounted the Taurus fan into my fan shroud and ran the wires to the controller and battery (do a search on Frod Taurus fan mod and you will see bunches of sites explaining how to do it). The fan mod is supposed to up the HP around 10-15hp I conservitively think it is more like 10hp the intake mod I think added about the same 10hp. (I looked at cold air intakes from K&N's websiteand they claim that using their cold air intake adds 15hp)



All this together did give me a little more power to the wheels and didnt take a bunch of money. The fan controller is around $100.00 the fan from the junkyard was $40.00, the plumbing parts fromLowes were around $15.00. And last the K&N was around $50.00.



I did notice a nice improvement with these mods and I got better fuel mileage too with them. My mileage went from around 9-10mpg in the city to about 12mpg. On the highway I was getting 15mpg at best running 70mph, and now I get upwards of 17-18mpg at 70mph depending on if I have the air cond. on or not. Also another thing with the fan mod was that my air seems to work alot better now that the clutch fan is gone.



Also as gotoguy said take care of the trans. I changed the fluid to Mobil 1 synthetic tranny fluid. I added a trans temp gauge too and also relocated my trans cooler and added a 12" cooling fan and fan controller from Autozone to it. My trans temps when towing on flat were around 220 degrees and without the trailer were around 180 degrees before the fan mod. Now with the fan mod, towing, I run around 200degrees and never go over 205 and without the trailer Im running at 150 degrees. That is with the fan controller from autozone coming on at 140 degrees.Edited by: fixit5561
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Old 08-03-2010, 03:14 AM   #7
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Wow Brian, That's how you do it. All of that can be done in a weekend and is going to make a big change.

As some one said above a gear change would make a big change as well but your going to get less MPG and less top end. I would guess that a 373 would be your best bet. Another change could be the size of your tires next time.
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Old 08-03-2010, 03:56 AM   #8
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Wanted to say thank you for all your replys. In answer to the question of how many miles I have on the TV, I have 60,000 on it, and it will have to be with us for a long time to come. I dont have any plans for a new TT unless it is donated to us to the gift of G-D. Anyway , now I am a little nervous about doing this , someone said to watch my transmission, can this kill the tranny? Gee I'm confused.
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Old 08-03-2010, 04:26 AM   #9
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If you go over 250 degrees for a long period of time with your tranny temps, yes your tranny wont last as long. Your tranny also needs the fluid changed abround every 30,000 miles or so. The trans will last longer and will love you for it.







I chose to keep an eye on my temps of the tranny and installed a trans temp gauge. I can see the temps and if it gets to 250 I will pull over and keep the truck running and let the trans cool down.



Most arent as picky as I am though.
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Old 08-03-2010, 05:12 AM   #10
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i've always believed that a vehicle is only as good as it's weakest link. With that said, if you upgrade the motor, you can plan on upgrading the transmission, then the rearend............ the madness never stops. But changing to a hi flow air cleaner, exhaust and maybe a chip is not going to make enough difference that you will need to worry about having to up grade the transmission. Likeothers have said, heat is the worst enemy so if you don't have atrans temp gaugethat would be my first purchase.60k on an '02 is fabulous so you should have many good years left on that vehicle. Now if you want to look at serious horsepower gains look into a procharger, and get your wallet out!!!
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