bay area tuners ???? help me to understand why ???

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Old Jun 25, 2015 | 09:06 AM
  #16  
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the dw 1000's have been failing on people also. I know a lot of the tuners will say do with the id 1000's for sure. But the DW 850's are still great!
Old Jun 25, 2015 | 03:48 PM
  #17  
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I'm running ID 1000cc as well. E85, Walbro 255lph, 2.0L on the stock TD04. Runs smooth.
Old Jun 26, 2015 | 01:18 AM
  #18  
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sounds like you dont know how duty cycles with injectors work if you simply think a 1000cc injector will work the same way as a 850cc injector.

I dont have the time to try to really explain it all so I'll dumb it down a bit
you have to think of the injector as the nozzle on a garden hose, you want it big enough to provide enough water (fuel) for your plants but also small enough to get a good spray on the plants. the smaller the injector the better spray, that's why manufactures typically run the smallest injectors they can get away with and run high duty cycles to maximize the spray/atomization. it you're running too big of an injector you're not getting good spray/atomization for the amount of air you are flowing, especially if you're running a stock turbo. Its just like the old days of running too big of a carburetor on a V8.

Last edited by Krinkov; Jun 26, 2015 at 01:57 AM.
Old Jun 26, 2015 | 07:37 AM
  #19  
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Originally Posted by Krinkov
sounds like you dont know how duty cycles with injectors work if you simply think a 1000cc injector will work the same way as a 850cc injector.

I dont have the time to try to really explain it all so I'll dumb it down a bit
you have to think of the injector as the nozzle on a garden hose, you want it big enough to provide enough water (fuel) for your plants but also small enough to get a good spray on the plants. the smaller the injector the better spray, that's why manufactures typically run the smallest injectors they can get away with and run high duty cycles to maximize the spray/atomization. it you're running too big of an injector you're not getting good spray/atomization for the amount of air you are flowing, especially if you're running a stock turbo. Its just like the old days of running too big of a carburetor on a V8.
werd
Old Jun 26, 2015 | 09:16 AM
  #20  
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Originally Posted by Krinkov
sounds like you dont know how duty cycles with injectors work if you simply think a 1000cc injector will work the same way as a 850cc injector.

I dont have the time to try to really explain it all so I'll dumb it down a bit
you have to think of the injector as the nozzle on a garden hose, you want it big enough to provide enough water (fuel) for your plants but also small enough to get a good spray on the plants. the smaller the injector the better spray, that's why manufactures typically run the smallest injectors they can get away with and run high duty cycles to maximize the spray/atomization. it you're running too big of an injector you're not getting good spray/atomization for the amount of air you are flowing, especially if you're running a stock turbo. Its just like the old days of running too big of a carburetor on a V8.

My Best friend made the classic mistake of going to large on the jets in his carb, setup, once he dropped down a few sizes car runs stronger and is noticeably faster.
Old Jun 29, 2015 | 08:44 AM
  #21  
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Jet sizes on a carb are for setting A/F Mixture. They have nothing to do with overall flow support. That's determined by the carburetor body. A Holley 750 is a Holley 750 regardless of jet sizes.
Old Jun 29, 2015 | 03:45 PM
  #22  
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My recommendations are purely based on what I have seen of just about all side feed injectors for the Subaru's when going above 850cc the idle and low fueling type requested drivability seems to go to complete crap. I always recommend ID for injectors (large or small for that matter) although understand converting the rails and such can be a cash burden that folks don't really want!
Old Jun 30, 2015 | 05:47 AM
  #23  
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Originally Posted by UKn00b
My recommendations are purely based on what I have seen of just about all side feed injectors for the Subaru's when going above 850cc the idle and low fueling type requested drivability seems to go to complete crap. I always recommend ID for injectors (large or small for that matter) although understand converting the rails and such can be a cash burden that folks don't really want!
Old Jul 1, 2015 | 03:18 PM
  #24  
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So that means I probably will not be able to get rid of these 1000 side feed DW injectors??
Old Jul 1, 2015 | 03:35 PM
  #25  
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Well talking further with Mike he said he will tune it. I will keep you guys posted and let you know how the car is running after the tune. Wish me luck.
Old Jul 1, 2015 | 04:49 PM
  #26  
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Originally Posted by TheBiggJHoov510
Well talking further with Mike he said he will tune it. I will keep you guys posted and let you know how the car is running after the tune. Wish me luck.
Good luck!
Old Jul 1, 2015 | 08:08 PM
  #27  
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Originally Posted by UKn00b
Good luck!
+1 ******
Old Jul 2, 2015 | 12:34 AM
  #28  
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Originally Posted by Lowend
Jet sizes on a carb are for setting A/F Mixture. They have nothing to do with overall flow support. That's determined by the carburetor body. A Holley 750 is a Holley 750 regardless of jet sizes.
I'd golf clap.... ah screw it... I'm golf clapping.
Old Jul 2, 2015 | 10:12 AM
  #29  
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My personal tuner tuned me for e85 on cobb 1000cc's with my 20g-xt. Im currently running at 80% duty cycle.. I think 1000's should give you plenty of room.
Old Jul 2, 2015 | 01:59 PM
  #30  
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Originally Posted by Quix_
My personal tuner tuned me for e85 on cobb 1000cc's with my 20g-xt. Im currently running at 80% duty cycle.. I think 1000's should give you plenty of room.
Cobb's injectors are a top feed and are essentially ID1000's, there's a huge difference between a top feed and side feed injector



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