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Pistons????

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Old Sep 6, 2008 | 12:06 AM
  #1  
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suzuki_vinson
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From: Linton, IN
Pistons????

Ok so I havent did much with my truck but I've had some stuff going on that I just havent had the time or money to mess with it but im ready to now so here is my question. I have sold the juice and evo. Bought the single shot injectors stage II. Already got the exhaust and 6637 done. Have gauges and am ordering the dp this week. So I know i still need intank mod and reg. fuel mod. But after hearing all of the war stories Im beginning to wonder about the pmr's. So now im thinking forged pistons? But i really dont know what im getting into here. Is it worth it or shoud I just run the risk??? I really dont want to tear my truck up. Thanks in advance
 
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Old Sep 6, 2008 | 04:00 AM
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ron's power stroke
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From: White Mnt's,New Hampshire
your PMR's (ROD'S) are good for 400 HP...doesnt sound like your going to be close to that without a bigger turbo...
 
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Old Sep 6, 2008 | 06:31 AM
  #3  
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you dont have to worry bout the pistons for now but the rods. and id say upgrade you turbo first- if you going to drag race or just have plain fun, you need air with fuel, and a lot of people make the mistake of having to much fuel and stock turbo.Than they wonder why they granade their engines.....
put a nice turbo like Turbonetics or Ball Berring Garret with your injectors and DP you will be bout 350 safe HP.
 
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Old Sep 6, 2008 | 08:36 AM
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From: Linton, IN
Yeah im planing on getting the garrett when I can. I just dont want to shatter a rod and window a block.
 
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Old Sep 6, 2008 | 08:39 AM
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From: Parker, CO
When you order the DP-Tuner, tell Jody what your mods are and that you have a PMR engine. That way he can set up the correct tunes for you.
 
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Old Sep 6, 2008 | 08:42 AM
  #6  
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You dont need to worry about rods, or pistons, with stage one or two injectors, if someone who really knows what they are doing is tuning your engine
 
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Old Sep 6, 2008 | 02:50 PM
  #7  
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From: Jonestown PA
Originally Posted by Pocket
When you order the DP-Tuner, tell Jody what your mods are and that you have a PMR engine. That way he can set up the correct tunes for you.
I've been wondering something. What does Jody do differnt with a PMR motor over a forged motor when tuning?
 
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Old Sep 6, 2008 | 03:12 PM
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From: Parker, CO
Originally Posted by redfire42
I've been wondering something. What does Jody do differnt with a PMR motor over a forged motor when tuning?
If you are going with bigger injectors than stock in a PMR motor, he can pull back some of the timing and whatever else he needs to keep the cylinder pressures down. That way you don't end up with a window in the block.
 
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Old Sep 6, 2008 | 03:20 PM
  #9  
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So on stock injectors there not much differance with tuning? Since I have no plans on changing injectors.
 
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Old Sep 6, 2008 | 08:16 PM
  #10  
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From: Parker, CO
Originally Posted by redfire42
So on stock injectors there not much differance with tuning? Since I have no plans on changing injectors.
Stock injectors with big oil will only get you 350 hp. Still safe under the 400hp mark for PMR's. When I did my live tuning, Jody gave me a lot of timing because I was still running stock injectors and I live at altitude (you can get away with a bit more timing at altitude). So it works out nice Jody's comment to me was "that's about as much timing as I'm comfortable with" Thanks Jody
 
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