TRD 5.7L Supercharger - Dyno Test & Tune - Page 5 - Toyota Tundra Forums : Tundra Solutions Forum

THUNDERA · #61 (**permalink**) 06-01-2009, 05:41 PM

Quote:

Originally Posted by jhip

Thundera, I saw on the URD site that there's also an "AFR Calibrator" and a pulley for S/C Tundra's:

Underdog Racing Development

Do you think these are necessary?

I know the pulley wouldn't hurt any...

The AFR Calibrator is almost the exact same thing as the MAF Calibrator - Just hooked up to different sensors.

And nobody makes a pulley for this S/C......yet.

jhip · #62 (**permalink**) 06-01-2009, 05:46 PM

Quote:

Originally Posted by THUNDERA

The AFR Calibrator is almost the exact same thing as the MAF Calibrator - Just hooked up to different sensors.

And nobody makes a pulley for this S/C......yet.

So is that link I attached not a "pulley"?

THUNDERA · #63 (**permalink**) 06-01-2009, 05:53 PM

Quote:

Originally Posted by jhip

So is that link I attached not a "pulley"?

It most definitely is a pulley - just not for the 3UR-FE TRD Supercharger. I'm sure we could easily have one made but Gadget at URD thinks its a bad idea...

jhip · #64 (**permalink**) 06-01-2009, 06:55 PM

Quote:

Originally Posted by THUNDERA

It most definitely is a pulley - just not for the 3UR-FE TRD Supercharger. I'm sure we could easily have one made but Gadget at URD thinks its a bad idea...

I understand now - I assumed that part was applicable for our trucks.

But back to that AFR calibrator, it wouldn't make sense to buy that if you already have the MAF calibrator?

I hope to be "supercharged" by next month so just planning out on what add'l parts to get once it's installed...

Any tips?

THUNDERA · #65 (**permalink**) 06-01-2009, 09:30 PM

Quote:

Originally Posted by jhip

I understand now - I assumed that part was applicable for our trucks.

But back to that AFR calibrator, it wouldn't make sense to buy that if you already have the MAF calibrator?

I hope to be "supercharged" by next month so just planning out on what add'l parts to get once it's installed...

Any tips?

You're going to have to ask Gadget at URD about the specifics, but the MAF calibrator adjusts the Air-fuel ratios (AFR's) The AFR calibrator does the exact same thing - so you only need one or the other. Gadget recommended me the MAF calibrator so that's why I bought it. Any further explanation of how they work will need to come from someone at URD

I would definitely make sure you get tuned at a reputable speed shop with wideband O2 monitoring and someone who knows how to tuned forced induction vehicles.

Have fun!!

jhip · #66 (**permalink**) 06-01-2009, 09:39 PM

Quote:

Originally Posted by THUNDERA

You're going to have to ask Gadget at URD about the specifics, but the MAF calibrator adjusts the Air-fuel ratios (AFR's) The AFR calibrator does the exact same thing - so you only need one or the other. Gadget recommended me the MAF calibrator so that's why I bought it. Any further explanation of how they work will need to come from someone at URD

I would definitely make sure you get tuned at a reputable speed shop with wideband O2 monitoring and someone who knows how to tuned forced induction vehicles.

Have fun!!

I'll look into that MAF calibrator along with custom tune, thanks!

THUNDERA · #67 (**permalink**) 06-06-2009, 01:13 PM

Two tanks of premium through after the tune reporting 13.2 mpg on each. This compares favorably to the 12.5-12.8 mpg I was getting before the tune. Should be able to hit 13.5 mpg pretty easily if I can keep my foot out of it

Now all I need is a tonneau cover and I should be able to be back in the 14's

Mr. Creosote · #68 (**permalink**) 06-06-2009, 04:29 PM

Quote:

Originally Posted by THUNDERA

I should be able to be back in the 14's

Altitude be darned....I want to see 13s.

THUNDERA · #69 (**permalink**) 06-06-2009, 05:24 PM

Quote:

Originally Posted by Burger Steak & Eggs

Altitude be darned....I want to see 13s.

Haha. I wish. I'll give it a shot but I actually meant 14 mpg

Coal Dragger · #70 (**permalink**) 06-06-2009, 11:09 PM

Quote:

Originally Posted by THUNDERA

Haha. I wish. I'll give it a shot but I actually meant 14 mpg

The fuel economy you are reporting, is that average for the tank or highway?

What does your truck get on the highway just cruising along at the speed limit?

THUNDERA · #71 (**permalink**) 06-07-2009, 05:12 PM

Quote:

Originally Posted by Coal Dragger

The fuel economy you are reporting, is that average for the tank or highway?

What does your truck get on the highway just cruising along at the speed limit?

I was at 12.5-12.8 mpg average for the tank (50% highway/ 50% city) before the tune. After the tune I am getting about 13.2-13.5 mpg.

Not sure what kind of fuel economy I get just cruising along the highway at the speed limit. Since the S/C kit includes new injectors, the instantaneous and calculated mpg in the computer are both wrong. If I had to guess it would be 14-15. I know that this thing sucks down the gas when I am WOT - probably to the tune of 5-8 mpg. Add it all up and it ends up around mid-13 mpg's.

07supercharged · #72 (**permalink**) 06-07-2009, 07:52 PM

Just to put my 2 cents in..........my 07 has been s/c for about a year now and when doing 60 hywy ( about 1600 rpm ) my trip computer says 20-20.4 . when figured out by plain old pen an paper .....its about right.