stock comp with bpus
10-27-2005, 12:36 PM
#1
Registered User
Thread Starter
Join Date: Oct 2004
Location: Daly City
Posts: 318
stock comp with bpus
Well i was wondering if you had upgraded injectors and fuel pump can the stock computer take it? I already have these parts for my build (got them for a very very very cheap price). MY concern is that the stock turbo ecu wont be able to handle it?? I will just be running stock boost for now but i want to know if having upgraded injectors, fuel pump, and posibble turbo, if my ecu will be able to handle it all? Or is megasquirt my only option?
10-27-2005, 01:17 PM
#2
https://www.zdriver.com/forum/showth...=FUEL+INJECTOR
READ IT.
Stock 280zx & turbo injectors can handle a lot more than what they do stock. But putting in bigger injectors won't solve any problems... just cause problems.
READ IT.
Stock 280zx & turbo injectors can handle a lot more than what they do stock. But putting in bigger injectors won't solve any problems... just cause problems.
10-27-2005, 01:26 PM
#3
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,294
I found info on this a while back. After a lot of reading on what people have done to tune their turbo L28 using the stock ECU, basically the ECU is too limited in its calculations (if you can even call it that) to make proper use of larger flow injectors. The fuel pump will be fine. Excess fuel returned by the fuel pressure regulator will just go back into the tank.
As for injectors, don't bother. You can get more high end power but you'll be running rich at idle and off boost.
My suggestion, and this is what I plan to do for now, is to run stock injectors but upgrade the fuel pump and more importantly the fuel pressure regulator with a rissing rate FPR.
As for injectors, don't bother. You can get more high end power but you'll be running rich at idle and off boost.
My suggestion, and this is what I plan to do for now, is to run stock injectors but upgrade the fuel pump and more importantly the fuel pressure regulator with a rissing rate FPR.
10-27-2005, 07:30 PM
#5
Originally Posted by DarrellBuddy321
well i got my injectors for free and they are 440cc.. And i never had the stock turbo injectors. Do you think that i should just find some stock turbo injectors?
10-27-2005, 10:06 PM
#7
Doesn't post much...
Join Date: Dec 2004
Location: Escondido (San Diego) California
Posts: 3,617
Originally Posted by DarrellBuddy321
whats the biggest size the stock ecu will handle?
Rod.
EDIT
P.S. Take it easy on 86ZMan... he's new to all this stuff and he asks good questions. He's always thankful for good answers too. He spends a lot of time in "Our" section because for one, there is a lot of knowledge here, two, there's a couple people in the Z31 section that are just outright rude an impolite. I think it's pretty awesome that people with other Types of Z's are asking and posting in our little part of the forum... show's that we know our stuff.
Last edited by RodMoyes; 10-27-2005 at 10:17 PM.
10-28-2005, 11:50 AM
#9
More Than Meets The Eye
Join Date: Feb 2005
Location: Mesa, Az
Posts: 5,120
Maybe also because the 280zx forums is where it's at. And I have no problem with 86zman, he seems to be a good kid. 
And who knows, if he spends enough time here in our 280zx world. Maybe he will get a 280zx, in the near future. 
Just a cool thought anyway, one big happy family! 
And I have no problem with 86zman, he seems to be a good kid. And who knows, if he spends enough time here in our 280zx world. Maybe he will get a 280zx, in the near future. Just a cool thought anyway, one big happy family!
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