Turbo BS Thread

ok what I don't understand is how you need to send more signal to the injectors than stock tune even though they are significantly larger? are they not linear and just react differently to different voltages?

 

About ~1300cc larger. Lol.

Unlike conventional injectors,where you must pull voltage reduce flow at those same low load/low rpm cells, these you have to add. They flow very little. Thus making it easier to fine tune the idle and driveability with extremely large injectors.

Yet another reason why they cost so much per injector.

 

yeah I'm in the same boat (sorta)) these 635cc I'm apparently having to add fuel to mine to get my fuel trims in check

 

Cool to hear. That is nice having the low end not be sensitive.

 

It's the little things.

 

I hope my injectors are like that. If I ever get to working on my truck, lol.

 

I hope so as well. Absolutely worth it to have smooth idling afr's.

 

I decided to clean the intake throttlebody and change the valve cover gasket and fuel filter today its a lot more involved than I thought Still maybe not to bad for 220000 miles

 

That oil and gunk is from your PCV. Get a catch can to reduce that. Get a very expensive catch can or a vented catch can to completely eliminate that.

 

i think something may be wrong with my return line... On a positive note, an oil saturated maf and o2 sensors couse be whats givin me some tuning troubles

 

That's better than dry and seized

 

Does your drain line have an upward hump in it?

 

are you asking if it goes like uphill before it gets back to the motor? if so no; I'm kinda wondering if there could have been something blocking it (like a dirt dobber ) since my buddy just had it in his shop. so a rebuild kit is in my future yes? the seals are most likely toast?

 

The supply and drain should be as close to straight up and down as possible so extra oil is not pooling in the turbo but rather drains straight out of the bottom.

Could also be from massive blow by. That oil looks old and looks like its thinned out from mixing with gas? Either way, check your PCV and consider a catch can.

 

I have a catch can so i dont think its blow by

 

Also oil is in the tail pipe

 

Is it vented or a very expensive one? Otherwise its not catching much. Pack it full of stainless steal wool and try to isolate the two in and out ports.

 

Could be bad seals on the turbo. Maybe needs to be rebuilt. Is your oil drain line oriented 90* from the ground, ie, straight up and down?

 

vented to atm

its about 45° i know u can barely see it but u get the idea

 

Here is how it was with no issues untill the line cracked before