General Supercharger Thread

@Saltyhero13 I'm assuming you were throwing P0101s and maybe 0102/0113 codes? I also had the P0420 for catalyst efficiency below threshold code...... Basically all codes you get when you pull the MAF.

 

If it persists you could try adding honeycomb air straightener screen before the MAF. I’ve never gotten a P0101 again after doing that with the SABM, AFE and magnuson airbox.

 

Honeycomb has crossed my mind for used to run one in my nitrous Se-r sentra way way back in the day lol. I may throw one in now that you suggested/mentioned it, thanks man!

 

I had a P0101 from an oiled filter I presume. Cleaned the MAF but only fixed the issue temporarily. When I replaced the MAF I was having surging idle so I did the throttle relearn. That fixed the issue.

 

Surging idle was the most annoying issue imo. Atm surge is completely gone thank God.

 

I am sporadically getting a P0101, I have the SABM, TRD Accelerator & AFE dry, what honeycomb should I get?

 

Or try the new maf from turbokits.com

 

This is the stuff I have. I’m not sure if some tuning changes will be needed when adding it in. I had mine tuned with it installed. https://performancemrp.com/i-30497808-12-x-12-air-flow-straightener-screen-1-4-honeycomb-cell.html

 

I bought a new maf last year, is this still better?

 

They have made one that adds I believe 30% more head room. @snivilous can explain it better

 

I like the idea of it, sounds like a good solution. My biggest gripe is I would want to buy 2 and carry a spare since you can’t just throw in a random one from an auto parts store in a pinch and have it be compatible with the tune.

 

same exact concern here

 

This guy?

https://www.turbokits.com/2007-2021-tundra-5-7l-high-flow-mass-air-sensor-maf.html

@snivilous do I need this/will I need to bug you for the tune update?

 

Yes on both accounts. I'm not sure how difficult it will be to update the tune. Probably give you an initial modification that adjusts the MAF values and then a follow up to get the fuel trims fully dialed assuming it needs it.

 

Questions, are we running these super rich to keep the pistons and tight ring gap from overheating and thus wreaking havoc? With proper pistons, ring gap, and big fat oil to air oil cooler to supply the piston cooling jets with cool oil, can we lean things out a smidge?

 

That's how it's explained to me. Weak-ish ring lands along with tight ring gaps are theorized to cause mechanical failure when hot. Richening past the normal 12:1 is strictly for cooling.

 

Back in 2008 Lextreme did a tear down of the 3ur exposing its shortcomings when supercharged. Then when were experiencing failures it was found the short piston skirt and tight ring lands had little room for expansion. Matt Smith came on scene talking about the cooling system. Thanks @Silver17 for info on Matt as I'm not on FB.
If your going to tear down might as well go with a true forged built engine.
@ViktorG and myself had catastrophic failures.

https://www.lextreme.com/forums/threads/3urfe-engine-exposed.9701/

 

@Fastlane47 new engine is built by XAT and has corrected pistons and ring gap, he's making 15+ psi and right now we're targeting in the ~12:1 range for most of the rpm band. None of that I would attempt on a stock setup based on what @Mdl said.

 

This is a great deal for a sheet! I usually buy off flea Bay but they were circle cuts nowhere near the size of the sheet.....the 12x12 sheet could probably get at least 3 made up at once!

 

@Jowett I forgot you were on the lextreme forum back then too providing great info, as many other forums. Man time flies...

 

So did I!

 

Ordered!

Thanks!

 

Thanks for the interest in the MAF sensor we developed for our Turbo Kit. Keep in mind, ours is scaled to read a higher flow for the same 0-5v range, it does require rescaling of your MAF table. Included is a MAF scale sheet, with voltages plotted along with the corresponding flow, with flowing done on a 3.5" ID sample size. You will have to adjust up or down (probably not down) from there based on your MAF tube size using simple math and then monitor fueling to dial it in 100%. Thanks again for the support!

 

Thanks! I ordered about 2 hours ago. I already have tracking!

 

https://www.tundras.com/threads/supercharger-running-lean.140825/

If anyone is willing to take a read and chime in

 

I may go this route and keep this OEM I just installed as back up!

 

You'll have to let us know how it goes.
I haven't had any MAF issues since going to the 95mm TB and 4.5 inch intake. @reywcms are you going 5 inch intake with the 103mm TB? Going to use the turbokits MAF? Will be standing by...

 

Current plan is the 5" tube and 103mm TB. If we feel we need more headroom I'll add the maf from turbokits.com

 

@ARES35 is your best bet as he was having similar issues... Just saw he replied to you!

 

Nice! I think I think I'm good with the tvs1900 and my setup for now.