Im new to all this and could do with some questions answered.

I have an '01 4runner (called a Surf where I come from) with the 3RZFE 2.7, and could do with some cheap HP gain.
Ive been reading about the deck plate mod on this forum, but have some questions, if anyone can help
- in the 2.7, there is not much room between the air box and windscreen washer container, or enough area to get much of a hole. The side facing the motor (thats directly opposite the air intake) is much larger and free from obstruction - can the plate go there
- what would this do to my fuel economy (gas is about $1-40 a litre here)

thanks

 

deck plate is marginal at anything, your just getting hotter air into the engine. there aren't really any cheap ways to gain hp to our engines. best mod for power is gearing.

I am running a snorkel and a header and according to my scangauge i am putting out 165hp

 

By making the engine more efficient you will gain HP and mileage. Cold air into the engine is a free source of power gain. Racers, for example, route the air inlet from the front grill area. A little ram effect plus cool air is the best you can do. Practically, you will have to decide. A free flow air filter and free flow exhaust is another source of efficiency. In your case, you have a lot of vehicle weight to contend with here. As suggested, I think a regearing will bring that 2.7 into a zone where the power band is better utilized. Lots of money to swap gears but you will not regret it if you are looking for better pulling power and acceleration and improved mileage overall. So, cool air in, free flow hot air out and regearing will make a dramatic difference. Heavy, under-geared vehicles perform poorly and get poor mileage.

My $0.02

 

There aren't any really cheap ways to make significant power gains over a wel-running engine. So, the best recommendation is make sure everything is running well - plugs, wires, etc.

Next best bang for the buck is probably headers, and after that, you're looking at a supercharger or turbo.

NOTE: to make more power, you gotta burn more gas - no two ways about it.

 

Nah, not quite true.
If you make the engine burn all the fuel and burn it more efficiently, you can gain power.
In this case though it's a mute point.


Fred

 

Your scan gauge is doing nothing more than making a simply WAG, at best.
There is no way that it can tell the amount of power that the engine is producing



Fred

 

That may be true, but you can gauge performance increases with "before and after" readings off the scan gauge.

 

Well ok then, I'm all ears.
Please tell me how



Fred

 

A horsepower reading calcuated from the ODB will always be questionable, but even if it is the wrong HP reading, it's a number that is calculated based on data from a system that operates in a consistant manner. Assuming all other variables are constant, any performance modification should show a change in the reading, thus reflecting the variable that you altered. The new reading won't be right either, but you can at least show qualitatively that there was a change.

 

sorry for sounding like a nerd.....

 

Pour it in the crank case and the gas tank

 

Trade it for a 3.4l and get the hp stay with a 2.7 for the torq