General Supercharger Thread

those air tubes were a major PIA working around when installing the Doug Thorley LT's on my tacoma.

 

They just called to confirm if EGR is wanted. The question is will it pass with out the egr

 

How did you the block the egr etc?

 

Mine passes, I have the full kit from Hewitt with the sensors that replace the valves, so I deleted everything and my ARH headers don't have the provisions.

 

Is that this kit?
https://hewitt-tech.com/product/sec...MI1PPxkPeTigMVHhatBh3GIA8vEAAYASAAEgJ10PD_BwE

 

Yes, you'll need that, plus 2 of these, one to replace each pump.

https://hewitt-tech.com/product/kit-addon-gen-2-pressure-sensor-replacement-single/

 

The alternative is to just get the block off plates and disable the monitoring in HPTuners. However, idk if you could fool emissions tests that way...

 

I did the Hewitt block off plates and the cheap DIY AIP bypass. Worked pretty good for past few years.

 

For the install is that the units pass fender and under the blower?

 

I'm trying to rember what @ViktorG said that the ecu 5v reference that the pumps use can cause issues. I wanted to pull the whole system but settled on turning of mil codes and fooling the temp test.

 

If you do the DIY bypass, what does the status say for the SAIS? I bought the Hewitt kit because it shows as Ready

The sensors replace the valves under the blower, if you do the kit you can remove the pumps in the fender as well as the hoses. I just taped off the power plugs for the pumps and zip-tied them behind the mess of wires on the valve cover

 

Can pull all of it off? Nice

 

I'll have to look. It should be ready as it just tells the ecu for sais that the temp is good.
If I can take all that stuff off then that would be golden.

 

Yep, I've had mine sitting in storage since I took it off when I installed the supercharger. Picture below is before with the valves, second picture is with the sensors in place of the valves ( breathers zip-tied to the sensor nipples that are open to atmosphere).

 

FYI, Toyota has OEM block off plates. They've been used for Tacoma. Assuming the same size for Tundra

https://www.toyotapartsdeal.com/oem/toyota~plate~e~g~r~hole~cover~25617-20010.html

https://www.tacomaworld.com/threads/secondary-air-injection-system-removal-diy-sais.655470/

and this post has good part numbers for SAIS studs and nuts if needed

https://www.tacomaworld.com/threads...-removal-diy-sais.655470/page-4#post-30074283

 

@armyoffoo Thanks! I saw the setup but thought you had to keep it in place.

 

The 3UR-FE doesn't have EGR.

 

Hmm ok so when we order headers and they ask do you need it with or with out EGR we say no EGR ?

 

Are they thinking of the sais aip system? With or without the air pipe?

 

No- essentially that’s two different things from my understanding. Do our stock headers have any provisions lol? If not then the answer would be no EGR lol but I haven’t looked.

 

Looks like our stock headers have provisions whether the naming convention is same unknown in regards to egr vs airpipe etc

 

I'm sorry, I think I'd need to question them as to why they're asking that question in regard to an engine that doesn't have it. I've read that the 4.6L does/can have it, and maybe that's where their query originates? Dunno.

 

@Jowett any input on this? I saw you mentioned no EGR for tundras in another thread.

 

I think there’s confusion on the egr vs sais either way looks like stainless works also includes tubes which is what I’m guessing arh is also referring to. https://stainlessworks.net/headers-...MInYnL4OWTigMVfiStBh1CKDpAEAQYAiABEgLgqfD_BwE

 

Only air injection on the 5.7, no egr.

I neglected to mention the 4.6 does have egr.

 

https://stainlessworks.net/content/installation_instructions/2014-toyota-tundra-headers-ii.pdf

You can see here in the stainless works instructions they also call it egr again seems we know it as sais vs aftermarket goes with the typical egr call out

 

That's the air pipe for the aip.

Yeah, seems their calling it egr but it's the aip/sais.

 

Made progress on my original oil cooler project, after getting side-tracked by my electric fan and electrical upgrade projects...Now I just need to swap out the oil filter housing and make some lines, should be nice short runs.
I changed the heat exchanger mounting, since previously I was mounting to the AC condenser. I still need to clean up my brackets and paint them. I used M6 nutserts everywhere, 2 in the core support for M6 rubber isolators for the bottom mounts, and 3 in the top cross-bar





Found a nice spot for the remote filter/thermostat, room for a longer filter and about 1/2" all around. Mounted to the frame with M8 nutserts.





Clear path for lines to route from exchanger to filter mount:

 

Good to stay clear of the sway bar. I made sure the sway bar was tight and had no excessive play. I didnt do a remote mount and yours look great!

 

sway bar? whats a sway bar?