[NOLA_1906]

Originally Posted by 123456999

The 15.1 AFR was also confirmed by v8hunter using a wideband on the street at WOT.
http://www.tundrasolutions.com/forum...ip#post1107545

lawdog2k reports pinging which is a very strong indicator of a lean condition.
http://www.tundrasolutions.com/forum...ip#post1108079

Ryder276 has GTech results with before and after unichip readings. The chip was slower.
http://www.tundrasolutions.com/forum...ip#post1107050

socaliallstar82 lost both mph and ET with the unichip at the dragstrip.
Post your 1/4 and 1/8 mile track times!

I know there are a lot of "it feels faster" posts here but spending $600 on go-fast parts has a way of doing that. The hard data that's coming in does not look good.

15.1 AFR under load and certainly at WOT is not right. Not only is it dangerous for your engine, but it wreaks havoc on the catalytic converter and produces enormous amounts of NOx.

The engineers at Toyota wanted the truck to run rich at WOT. Probably because of the higher compression engine design they used. Going lean (leaner than stoich even!) on an already high compression engine is nuts.

Tell unichip to release the datalogs of their runs. They stated that their chip's tuning "is perfect". Tell them to back it up.

Is that you Gadget? LOL! Unichip is not going to release proprietary information like that. Competitors would love to get this info. Toyota engineers wanted it to run rich because it is a SULEV vehicle! Its a big a$$ truck with a big a$$ engine that is SULEV rated! Something has to give. It has to run rich for emissions purposes not to protect the engine because of the compression ratio. We need to stop thinking of AFR's relative to turbo vehicles and comparing them to this truck. Most of us are armchair tuners who "heard" that anything over stoich is BAAAAAD! Its not true across the board.

V8Hunter also confirmed 0-60 increases of .4 seconds regardless of what one AFR snapshot in one gear may have been. the performance is measureable.

I believe LawDog spoke with Unichip and his issue was resolved. I forget what happened, maybe he used less than 93 octane.

Socaliallstar got slower after he put those headers on. He was faster stock. That's probably header related. He may need a custom tune.

Again, you guys can choose to believe what Unichip has stated, or not, but they won't keep coming here defending themselves. Bashing them will not help us at all. Why would they knowingly refuse to correct the maps if they believed something to be wrong? Do you think its in their interest that we blow engines? They are completely familiar with what is going on both on the dyno and the street. Just chill out guys.