Jet ECU? Air Box?

[Snake777]

What exactly are the Jet ECU and Air Box mod that i have heard of? Where do you get them and how much power do they add?

[dyogim]

The Jet ECU is when you send your ECU to Jet(or any other performance tuning company). They reprogram the vehicles ecu to increase performance. You won't be able to drive your vehicle when this process is being done. You can also purchase a chip. Where the chip in the ecu is replaced. This route you don't send in your ECU. Instead you remove the chip yourself and replace it with the aftermarket chip.

The airbox mod is done by cutting holes(square or circular) into your stock airbox. There are several ways people have done this. One way can be seen in my photos. If you don't like the idea of cutting away at your airbox, then you can purchase an aftermarket intake system. They can range from $200+. Airbox mod is about $50 with the purchase of a performance filter(TRD or K&N).

Hope this helps

Mike

[Snake777]

Where can i call to have this Jet ECU installed? Even Better, are there any aftermarket chips available for the Tundra? If so, where can i get them? Thanks.

[iforceV8]

Snake, none of those mods add any HP you can feel. I heard of people with Jet chips, they don't feel a thing. I heard of and seen a lot of airbox mods, and even aftermarket intakes themselves. They might make a few top end hp. But you might lose some low end tq. Ask other senior members of this forum, they will tell you the same. Stock airbox with OEM paper filter is best. Jet chip is crap. Spend your money on an exhaust system, or some headers instead.

[red's tundra]

Check out bothe of my posts in the "air box test" thread and you can see my experience with it...

[AINTNOFORD]

As someone who has both of these mods on my truck I have had favorable hp gains. If you are going to get the TRD supercharger, DO NOT get the Jet ECU upgrade. The supercharger will come or you will need to upgrade the ECU at that time. Jet programs each ECU to what is on the vehicle at that time. $399.00 that can be better spent later. The Airbox mod works very well. Keep the air filter clean and you will get maximum air flow. Both of these Mods along with everthing else that I have done has resulted in the HP of my truck in the upper 295 range.

[Yellbird]

How do you come up with 295 range?

I have the headers, Airbox mod and Bassani exhaust and my Dyno shows about 221 at the wheels.

[AINTNOFORD]

The 295 was actual engine HP not Hp at the rear wheel. If my memory serves me well it was 236 or 239 at the rear. I will try to find the last thread that has the dyno graph on it. Sorry for the confusion.

[AINTNOFORD]

236.5 at the rear. The shop said that with the drivetrain that is on the truck That I am losing at leat 25% HP from the engine to the rear. That puts engine HP at 295.63 or around that. I am waiting for the supercharger before I go back for another run. Ryan

[beckerg]

You guys are making good HP. But...did any of you get a baseline reading before doing your mods?

[v8Toilet]

Originally posted by AINTNOFORD
The 295 was actual engine HP not Hp at the rear wheel. If my memory serves me well it was 236 or 239 at the rear. I will try to find the last thread that has the dyno graph on it. Sorry for the confusion.

If a stock Tundra puts down 205 horsepower to the rear wheels like have seen here and it's rated at 245 at the crank than the drive line loss is 17%, which puts your crankshaft horsepower around 280 horsepower.

Here's your thread. Dyno Run

[Mr. Ving]

Is the driveline loss a percentage or a constant? I read a post where someone said that it is a constant and gave an example for a miata. So, if it is a constant and a stock Tundra puts 205 to the wheels and is rated for 245, the loss would be 40. Then you should just add 40 to whatever your chasis dyno read to get the flywheel hp. Right? Or is that too simple?

[AINTNOFORD]

I have several mods that might make the HP loss a variable. I will check the engine dyno shop and ask them for more input.