I have an 87 camaro z-28 with a 305 TBI engine how much HP comes on those stock??

 

there is no 87 305 tbi motor. it started in 1988.

here's the info on the motors available and hp ratings for year:

https://www.thirdgen.org/newdesign/tech/techdb.shtml

you shoudl take a look around the site outside the bulletin board. There's a lot of stuff here.

 

There was no 305 TBI's until 88.

 

well the guy i bought it from said it was a 305 he didnt say if it was a tbi though i just assumed it was cause it had the round air filter on top maybe its an 88

 

on that link you gave me how do i know which motor is mine??

 

Post the 1st 11 digits of your VIN.

 

....i just assumed it was cause it had the round air filter on top....

Well then chances are it's a 305 carb (RPO LG4, eighth digit in VIN = "H"). Here's the breakdown of hp for 305's in 1987:

Sport Coupe (LG4/Carb): 165
Z28 (LG4/Carb): 170
Z28 (LB9/Tuned Port Injection) w/automatic: 190
Z28 (LB9/Tuned Port Injection) w/5-speed: 215
Z28 (L98/5.7 Tuned Port Injection): 225

I have no idea why you get five extra horses for the same engine in the Z28.

 

3.23's instead of 2.73's, also got 5 more TQ.

 

yea i thik it is the lg4 but ill check my vin when i get a chance,thanx

 

WTF? Gearing has nothing to do with horsepower. Gearing multiplies the driveshafts revolutions and applies them to the ground. HP is a measurement of the engines actual power.
At least come up with a decent bull**** answer like "better exhaust" or something.


Check your VIN, run it thru the decoder on the main page and it'll tell you your cars year and the engine.

 

LOL, they probably said lets give the Z28 more HP and TQ because the the car with better gears is faster!! It was a joke dude, glad u figured it out, thats what the "" was for. Who knows where the extra 5HP and 5TQ came from. Its because its a Z28.

 

ahh... sarcasm doesn't transfer well over a bullitin board... newbies could interpret what you were saying as fact and bring it up in countless debates.

 

Yeah, I agree.

 

3.23's instead of 2.73's, also got 5 more TQ.

In addition to what Drew pointed out, you're inferring that Z28's came with 3.23's. This is not true on automatic 305 Z28's. They came with 2.73's. RPO G92 was not an option with LG4 Z28, only TPI's. And we are talking about LG4's here, not TPI's. I needed to clear this up for newbies.

Willie

 

Yeah I know, I wasn't thinking of newer members reading.

 

::sniff sniff:: I'm a confused newbie......lol, j/p. Actually, b/c of the joke and replies....I learned quite a bit. Thanks