preformance parts for 2011 how to improve hp

looking for ways to increase horse power in 2011 tacoma? any ideas

 

Supercharger??? You can do headers and intake but you won't see huge gains.

 

Super charger is probably the only thing that will give you more HP.

 

Supercharger. Most bang for your buck.

Running 89+ octane gas in the 4.0 will get you about three horsepower and ten or fifteen pounds-feet of torque.


Anything else is probably a waste of money (who cares if you gain 0.5 horsepower).

 

really gain 3 hp from 89 octane??

 

Are you saying Toyota eliminated the ability of the engine computer to adapt to lower octane gas? That seems very, very unlikely.

 

It isn't a matter of "needing" premium. When an engine control system pulls timing to allow the use of lower octane gas, it reduces engine power output. When you use higher octane gas in an engine that has been pulling timing to use lower octane, you get the increased power output.

I have seen no reason to believe that the control software has been altered to remove that feature, and I can think of no logical reason why they would eliminate adaptive spark mapping.

 

Freeing up your intake and exhaust AND THEN tuning for the changes can significantly increase horsepower on the 1GR engine.

I am running:
TRD Cold Air Intake w/ Pro-dry filter
Doug Thorley Long Tube Headers
TRD Cat-back exhaust
and tuned with:
URD MAF Sensor Calibrator

I have seen significant gains...

Stock -
http://www.youtube.com/watch?v=m91MgnoSpjs

Mods - (w/o headers)
http://www.youtube.com/watch?v=BNQFyhYqxC8&NR=1

 

Plenty of manufacturers do exactly that on many vehicles. It was true on my '98 Neon DOHC, and it is true on these engines. How could removing it possibly save money? The compression ratio has not changed...the engine configuration has not changed...so the only thing that would change is the engine control programming. There is no cost savings to be had there, and there is no scarcity of memory or processor to make Toyota trim the code.

There is just no reason for them to have removed the adaptive functionality. Here is a published reference from 2006 that shows the engine output as 239 hp and 278 lb-ft torque, matching the information in the Wikipedia article on the GR series engines. There is also a FJ manual that shows the engine rated on 91 octane at 239 hp and 278 torque. Toyota now quotes engine output for Toyota vehicles using 87 octane gas (and Lexus using 91). Unless you can provide some sort of concrete, documented source that says otherwise, then the reasonable conclusion is that the engine system still functions the same way it always has.

Great. Was the 2000 Accord V6 engine designed and controlled so that it would run optimally on premium, but would adapt for regular? If not, then their findings are immaterial in any discussion of engines that are so designed.

 

Coming from 550+HP beast, it feels pointless trying to make a Taco go fast. Supercharger will definitely help, but will fail to meet my expectations. I seen vids on youtube of supercharged Taco's, its just creeping along. Far from stock, but far from fast.

 

URD... Enough said

 

The computer adjusts the spark maps. It "re-tunes" on the fly. Of course there is a decrease in performance on the lower octane fuel...that has been the whole point of this discussion. Some manufacturers report the higher numbers and say they achieve those horsepower/torque numbers "When using 91 octane or higher fuel". My '98 DOHC was reported this way. Toyota is now reporting all Toyota brand vehicles' statistics when using 87 octane.

The code already exists. It would take man hours to remove it. The engine computer is a modern design; it is fast, and it is flashable. It is reasonable to conclude that its design includes sufficient memory for any anticipated reflashed software.

I posted direct references. They are all 2005 and newer.

I suppose it is possible that Toyota would intentionally redesign the engine (at great expense) so that they could revert back to the level of engine control technology that was common in 1992.

I posted three references that attest to exactly that, one a published book from 2006 and one a technical manual from Toyota. If that isn't proof, I have no idea what would be.

This has strayed far enough from the OP's topic, this will be my final post on this topic in this thread.

 

I agree with JKD bro, here man all you need is a CAI, Headers, URD supercharger, upgraded pulley and a calibrated ECU and you've got yourself 400HP... This link will help you go far. Just go check out this link and it will lead you to plenty of parts you need. http://www.urdusa.com/ Follow the X-runner guys if you wanna know more. You have the same engine just different suspension!

 

thanks guys for the help i have looked for the super charger but not sure if i can find one for such a new year tacoma

 

I know for a fact I get 2-3MPG better when filling up with premium. Not sure if that would be considered an increase in performance though.

 

A 2010 would fit. Ask the techs at ur dealership but it Should work as it's the same truck as the 2009-2010...