scoutsniper

i just bought a 91 firebird with a 3.1L and 150k on the clock. the car has been all re gasketed and new injectors but i was wondering what i can do to get a little more power? ive never taken it past 3k b/c im a fraid if i redline it (5500rpm) that im gonna blow it up. i just wanna beat my freinds 03 neon (stock)

or should i be able t take him the way it is? its a 700R4 by the way. with factory 3.23 gears.

thanks

noahTHEpurdy

iTrader: (1)

Read up on Tom P's tune up guide.

nixon5

intake/exhaust headers back and you should just stomp that gas through the floor odds are it wont blow these engines are pretty tough .

Gumby

Its not gonna blow up, over 220,000 miles on mine and it run up to redline like it was brand new. Still pulls hard even beyond.

liveyourself

Tom P's tune up guide? where that at

2.8RS

iTrader: (5)

Search.

You really can't over rev on an auto. It'll shift when its supposed to.

scoutsniper

well its got a brand new exhuast and cat converter. how much would a intake run me?? im 17 and still in school so i dont wanna break the bank lol

do you guys think i can take my freinds neon all stock with 95k on clock

2003 neon 2.0L auto. they come with 132HP and 130ftq and wieghs 2,600 w/o driver

my firebird all stock with 151k on clock

1991 bird 3.1L auto. it comes with 140HP and 185ftq and wieghs 3,100 w/o driver and 3.23 gears no posi.

do you think the bird can take him?

scoutsniper

well i beat him good lol. that first gear really helps. he started to catch up a little around 70 but we ran out of road to see what would happen.

how much are headers for my car?

also would chipping it do anything?

92RS_Ttop

iTrader: (3)

Check Summit for headers, I don't recall them being all that much. Not too many places carry headers for those engines. Chipping it probably wont do much, they are usually only good for maybe 10hp. Doing a custom chip would be better, but you have to have the supporting mods for it to be worth the price. As nixon5 said, headers, new exhaust all the way back, and a cai kit or homemade cai. You could also try upping the fuel pressure and see if you can find injectors with a higher lb/hr rating than the ones you have. Were the plugs, wires, cap/rotor, and coil changed recently? With that kind of mileage they are all well past due for a change.

Higher rear end ratio will help it get moving faster as will dropping weight, but wont actually increase power levels.

From there you are basically into the realm of turbo- or supercharging and/or nitrous. More expensive and custom chips are pretty much a requirement.

Most people will tell you V8 swap, and I have one planned for mine. Thats the best as far as price/power ratio.

scoutsniper

its had a major tune up inlcuding

plugs,wires.cap & rotor, sensors, injectors, computer, and alot more.

i was thing of a 373 posi but would that kill my freeway?

i have a 350 4 bolt with 2.02 heads that needs a rebuild kit but how hard is it to switch from a computer controlled car to a carb??

thanks and im in school so im not rich lol.

project89

iTrader: (1)

3:73's wont kill ur gas milage

its will be a 500rpm diff at a given mph then what ur at now

intown milage will prolly increase, the gears make it easier to get the car moving meaning less throttle opening to take off and cruise as well

u may possible lose 1-2 mpg on the highway though depends on how much highway driving u actually do

scoutsniper

i do very little highway.

its gonna cost me about 400$ to get the gears and have my freind install them. would i have a better chance of junkyarding a mid 80s trans am,formula, or z28? also do i have to do anything for the computer with the new gear. i was told it will mess my transmission shift points and my speedo will be off?

thanks alot guys.

project89

iTrader: (1)

well u can go get a rear out of a 89 or older 2.8 car those have 3:42 gears

u could also see what cars came with 3:73's

yes it will throw ur speddo off u have a 3.1 which means u have a vss sensor on the side of the transmission so im not sure how u would correct it

on the older maf cars the 2.8 cars there is a lil plastic speddo gear u could swap out and they generally run 15 bucks for the new gear. u take out one 10 mm bolt pull out the gear and drop the new one in.

do not buy used gears liek just agear set buying a used rear is one thing, used gears are much harder to setup and increase the likleyness of gear noise or improper pattern.

summit sells the gear sets for 189$'s last time i checked and an install kit is 99$'s

so u should be able to buy everything new for just a touch under 300

ur avg shop should run 300-400 for labor to install the gears if u go somewere and they try to charge u more walk out.

my shop gets 300 labor in car and 200 labor on the bench to setup a rear, and is very typical of the other shops in the area just to give u an idea of what u should be paying if u have to go that route

scoutsniper

if me and my dad pull its out ( really easy lol) my dads freind will install it for 200$. he builds for dodge race team. so i can trust him lol.

what would i ahve to do for the speedo and anything i need to do to the trans. like the shift points?

thanks

project89

iTrader: (1)

i couldnt tell u im not sure with that vss sensor , someone else may know though try asking in the the transmission and drivetrian section. though im sure if u search for it its been asked a million times already lol