dirtrider38

to start off i have a 88 pickup with a 22re 5speed that is stock. i was wondering what i can do to it to increace performance and/or gas mileage? i was told i should run an intake on it and relocate it for better air? for any of you's who did that first question is where did you locate it to and second what did you do with the air flow sensor? Also would taking out the cat and just run straight pipe to a glass pack help? Thanks

tc

What year rig?

Engines are quite efficient at liberating the chemical energy in the fuel. You want to make more power, you have to burn more gas. PERIOD.

First step - when was the last time you did a tuneup (plugs, wires, cap, rotor)?

abecedarian

The thing to think about when optimizing mileage is to keep the engine turning at or slightly below the rpm it produces its peak torque with the least amount of throttle (accelerator pedal applied) possible, or at worse, running a higher RPM with less throttle.
I can get 24+ MPG with my 88 on 31's if I keep the vehicle speed below 70, and downshift before I have to (when climbing hills), even dipping into 3rd gear (and keeping it at 60+ miles per hour).
Under-revving an engine can hurt mileage just as much as over-revving.
The trick is keeping the engine in whichever part of the powerband that is the most efficient given the vehicle speed.

Matt16

Got 27mpg with my 1990 4Runner driving as Abe described. Do you know why they put a cat on in the first place?



get the picture?

abecedarian

hmm... I thought 3-way (not to be confused with 2-way) catalytic converters were meant to convert unburned hydrocarbons into CO2?
so you mean we gave up 'haze' in favor of contributing to global warming?

Damn those environmentalists....

lest not us forget that CO2 is one of the 'least' affecting 'greenhouse gasses' (having already reached its max absorption).
Water vapor, being the most affecting (and not included in the models).

Trustyrusty

They put catylatic converters so you could take a picture from your apartment window after you got done hot boxing in your tiny living room?

Whiplash Willy

Running just an intake won't get you much, if any noticeable results. You will want a header and exhaust to make use of the increased air from the intake. But like others have said, make sure everything else is running at its best before you start upgrading.

muddpigg

iTrader: (1)

Cuation once you get started it never ends, but its cool and I enjoy it. Hell my biggest fuel drain is the aggressive 12.5" width mud tires on steel rims I run. The 10.5" A/Ts on aluminum weight a lot less with way less rolling resistance. But I'm too lazy to swap them out constantly and even posted the ATs for sell.

yoder519

holy poopy thats a big picture

GVOLCRunner

I find going only downhill helps to.

yoder519

dern skippy. more power.. and mpg

gte718p

Actually water vapor it included in all the the environmental models. However water vapor has an annoying habit of falling back to earth in a couple of hours. Shifts in realive humidity around the world are a big deal. However I'm not aware of anyone successfully showing direct human effect on geographical humidity.

Matt16. I live in SE Asia right now. I have pictures in Vietnam and China that make that look like a clear day. I think everyone who is against environmental protection should move to China and do whatever they want and not screw with the air I like to breath.

dirtrider38

all i asked is would it give me more power. sorry for insualting you tree huggers. So i got an intake is there any MAF sensor dumby so i can reroute the intake?

GenXr

I have Downey's big CAI cone filter and their header with 2.5" exhaust system on an otherwise stock vehicle. I went from 19 MPG to 22 MPG on the highway. Other than being loud I am happy with the improvements.

2.5" exhaust systems are not popular here on this forum as most folks swear by 2.25". I haven't seen any scientific evidence to say why most folks opinion is against the 2.5" system but my experience with it and with Downey has been favorable.

Hope that helps you decided what you want to do.

GenXr

If you've bought a quality kit from LCE or Downey or wherever, it should include a provision for your MAF sensor.

abecedarian

you don't have a maf. you have a vafm (a.k.a. afm). they operate in totally different manners.
anyhow. what was the question?

dirtrider38

so whats a vafm and if i want to put in a intake do i need a dumby so a light wont come on or so the truck wont run like ?