Nitrous, Super Chargers, & Turbos All charged talk about going FAST.

Turbo Help!!!

Old Mar 11, 2006 | 10:05 AM
  #101  
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Default RE: Turbo Help!!!

When I got my turbo in the mail, I said to myself "how the heck is this gonna fit??". With the log style manifold with the flange that faces the front of the car, I didn't have much trouble with it. Of course, A/C got kicked out, but it was worth it for me. I did have to take some plastic off the passenger side cooling fan though to get the turbo to fit. I didn't have to mess with the motor mount at all. My downpipe looked like it was going to clip my alternator, but it has a good amount of clearence (it helps to take the electrical connector off the alternator when fitting the d-pipe). I was surprised how it all just kind of fell into place, and as soon as you get more pieces and see how things will fit, you'll have a better idea of what will need to be done, and it may be less than you think.

There won't be a whole lot of room to work with things, but that turbo should fit nicely in there... almost like it should have been there the whole time.
 
Old Mar 11, 2006 | 05:47 PM
  #102  
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mbo thats awesome that you have that same muffler.....i just put one on my gf's little sentra and it even sounds good on there.
 
Old Mar 11, 2006 | 05:47 PM
  #103  
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which injectors are you gonna get?
 
Old Mar 11, 2006 | 07:12 PM
  #104  
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I really want to go with the RC's since I'd like to get some brand new ones, but they're pricey. This coming week is payday, so I might just go for them...

I'm 90% sure I'll invest in the RC's 440 cc low impedence injectors. Otherwise, I'll get some DSM's.
 
Old Mar 12, 2006 | 01:40 AM
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Youll just want to keep in mind the fuel map will have to be adjusted because you dont want 440cc injectors running at full during preboost. I will enjoy the day when i need a larger fuel rail and new injectors ^_^
 
Old Mar 12, 2006 | 02:00 AM
  #106  
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yeah, my friend has a SFAC 2 he'll give me for cheap, maybe I'll tune things down with that...
 
Old Mar 12, 2006 | 05:23 PM
  #107  
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the injectors are still controlled by the computor..........they wont run at full when the car is idling. the o2 will still monitor how rich or lean the mixture is, if the mixture is too rich, the computor will reduce the pulse width to the injector. when the boost rolls on, the computer will increase the pulse width, and this combined with the rising rate fuel pressure will make the A/f correct under boost. marbro.....with your car right now with the stock injectors, they dont run at full when your at idle. as you hit the gas, the computer realizes that if it doesnt do something, the engine will start to run very lean. so it fattens the pulse to increase the delivery of fuel, when you take your foot off the gas the pulse is reduced or the motor would run rich.
 
Old Mar 12, 2006 | 06:46 PM
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In order to control the flow of fuel of the larger injectors, you'll need some form of a fuel management system. The factory system simply cannot control the changes that are going to be made beyond the factory specs. Thats why people redo the ecu of earlier obd's. Cause if you could just upgrade everything and not worry about the computer no one would change or chip them. Thats why stand alone fuel management exists and if mbo is going to take the turbo up higher then 10psi hes going to have to change the injectors again to 550cc or higher and heaven forbid he would goto over 25psi, running a second fuel line and pump sucks. ^_^ But yeah, the computer only accounts for so much
 
Old Mar 12, 2006 | 08:39 PM
  #109  
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well i was just talking about 10 right now. if he goes over that i would recommend him closing the deck. no need to add things that arnt needed right now. the 450's will work perfectly with his stock ecu. the computer doesnt have a set parameter. it takes signals from different sensors and makes its own set of outputs. even right now, the pulse width is wayyyy larger now with the turbo than when he had it stock. that is way out of the normal parameters of the stock engine, but it is working great right now because the computer knows what it needs to do to keep the a/f correct. with the correct size injectors, the computer will actually feel more at home because the signals will actually be closer to what they were stock. lets just put a number on it lets say the pulse is 2 milliseconds stock, and now under boost with the stock injectors, it had to be increased to 4. well with the correct sized injectors it will probably be closer to 2 again. but you are absolutely right, if he does go over 10, then he will need a bunch of heavy duty engine management systems to keep the engine running well, and possibly even water injection. im just trying to help him out a little step by step. he has a hondata, which in sure that hell use later on down the line. i dont want mbo to think that anything else has to be done to run larger injectors because thats already a pretty big step. mbo all you need is

those wiring connectors, because you stock ones dont fit. you can use DSM ones like were in that link earlier or you can by them from RC.

fuel rail. a new aem one or one from RC is perfect....also a dsm rail will fit perfectly too

and then the injectors.

this setup will support 10psi, and you car will run better. for me though, 10 psi would be plenty. **** if im taking on z28's and ****, thats just impressive. mbo if you go to the strip they might tell you that you can even come back until you have a roll cage and kill switches for all kinds of stuff cause i think at like 13.99 or 12.99 they require a cage here in az.
 
Old Mar 12, 2006 | 11:45 PM
  #110  
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Default RE: Turbo Help!!!

So if I need new connectors, I'll probably go for the DSMs. 10 psi will be plenty of pop for me for a long time.
 

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