BlueRanger's 2004 Tundra AC 4x4 "Do Everything" Truck
- Thread starter blueranger501
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blueranger501
Observer
blueranger501
Observer
Got it in. Giant pain with one of my small pic tools. Won’t be changing any of the other springs that’s for sure...
blueranger501
Observer
In the middle of thinking about what I will do in the rear (SOA, SUA, Cantelever) FOCUS, I still need to get this supercharger done. Sent my injectors out for flow testing and rebuild; wow, glad I did. Would recommend anyone with a blower (current or upcoming) do so. Here is a quote from James McMann and I think he nails it on the head:
Some were 8-11% off.
Such as flowing that much less than they are suppose to.
Plus..never a good thing having poor spray patterns which makes for piss poor fuel atomization/poor combustion.
Good thing they’re now cleaned up.
That’s huge when it comes down to the ECU trying to equalize with short/long term fuel trims since it’s reading 4 cylinders converging into 1 collector where the OEM 0-5V analog O2 sensors are located.
You’d of had upwards of 17-20% fuel cuts at low-mid RPM’s equalizing 14.7:1 for closed loop and leaner air/fuel ratios at WOT than what the tunes are tuned for where wefocused on near 0-1% fuel trims.
Some were 8-11% off.
Such as flowing that much less than they are suppose to.
Plus..never a good thing having poor spray patterns which makes for piss poor fuel atomization/poor combustion.
Good thing they’re now cleaned up.
That’s huge when it comes down to the ECU trying to equalize with short/long term fuel trims since it’s reading 4 cylinders converging into 1 collector where the OEM 0-5V analog O2 sensors are located.
You’d of had upwards of 17-20% fuel cuts at low-mid RPM’s equalizing 14.7:1 for closed loop and leaner air/fuel ratios at WOT than what the tunes are tuned for where wefocused on near 0-1% fuel trims.
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smokeysevin
Re-redoing things the third time
Yeah, pretty typical. Make sure the fuel system is up to par as well. I read a while back about running a larger capacity wire to the fuel pump to help stabilize the voltage better.
Rather than the long term fuel trims being off, the bigger issue is that since you have 1 o2 per bank and 4 cylinders per bank, if one injector flows low, that means that the ecu is going to bump fuel on that bank to bring the average back in line. Since the ecu can't measure cylinder distribution, you end up with a good average but one hole still flows less fuel.
You can end up with one lean cylinder, one rich cylinder, and 2 marginals. With boost, that means a the lean cylinder gets burnt piston/cracked ring land or worse, detonation. The rich cylinder gets a wiped bore because the excess fuel washes the oil off the bore, and the other two look fine.
The rods on the 2uz's are crap to start with, under boost its not better. That is why the trd blower started with 8 injectors, got bumped to 9 and finally to 10. People kept shooting rods through the block.
All that said, its still on my to-buy list.
Sean
blueranger501
Observer
Great points about fuel, completely agree.
Got my starter installed today - what an absolute PITA, I was going the Spider-Man over my engine bay to get to the starter bolts. Would have been a lot more difficult without this offset pivoting ratchet from Gear Wrench; lifesaver.
New starter seems to have more vibration though the block / chassis when I cycle, not sure why or if it’s my imagination, replaced with OEM denso. Anyone else replace their starter and have this issue? No belts or anything so it just cycles no “chug chug” like the normal start up cycle.
Also broke the retaining clip on the starter plug, had to get creative with some zip ties to make it work.
Supercharger is ready to go on the block, lots to do before I can fire up but moving in the right direction!
Got my starter installed today - what an absolute PITA, I was going the Spider-Man over my engine bay to get to the starter bolts. Would have been a lot more difficult without this offset pivoting ratchet from Gear Wrench; lifesaver.
New starter seems to have more vibration though the block / chassis when I cycle, not sure why or if it’s my imagination, replaced with OEM denso. Anyone else replace their starter and have this issue? No belts or anything so it just cycles no “chug chug” like the normal start up cycle.
Also broke the retaining clip on the starter plug, had to get creative with some zip ties to make it work.
Supercharger is ready to go on the block, lots to do before I can fire up but moving in the right direction!
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blueranger501
Observer
Getting stupid close. Volant CAI w amsoil filter installed and ready to go. Need to wire unichip and put on belt. Then it’s go time!
Also wired up my halos and turn signals and cleaned up some messy wiring in the engine bay. Fresh interior, exterior and engine detail as well....
Can’t wait to feel that boost!
Also wired up my halos and turn signals and cleaned up some messy wiring in the engine bay. Fresh interior, exterior and engine detail as well....
Can’t wait to feel that boost!
