is the 135 HP the 2.8l cars are supposed to have at the Flywheel or at the Rear wheels? im guessing at the rear wheels. im askin cause marked off a section of road by my parents house that was 1/4mile and did a run down it. I got to 85 by the time i crossed the end mark I dont know how much my car weighs but it has no power options other than Cruze, AC, power steering. and the AC has been removed cause it dont work anyways. I was just gonna leave it at that but i was browsin around here on the boards and found this link http://www.speedworldmotorplex.com/calc.htm so i put in what the most often stated weight for a V6 thirdgen i have found of 3400Lbs and the speed of 85mph and it gives me 163 RWHP and 192 at the flywheel! that cant be right can it? Also the speedo is accurate cause i gots a Speeding ticket fo goin 85 and thats what my speedo said

 

That number is at the crank

 

thats what i thought so either the guy that rebuilt my engine did more that just refresh it or my car weighs under 2,800Lbs whigh i really doubt cause i have a floorjack with 2 jackstands and a creeper plus a toolkit and a battery jumper, gal of oil, and a hole bunch of other crap in there. Im probably makeing everyone on here pissed at my constant questions. id take it to a dyno or even a track but i dont feel like paying $50 bux or more just to put my car on the machine and go Vroom a time or two.

 

did you mark it using a rolling wheel thing, or did you just use the odometer on your car? chances are its more like 3/10ths of a mile instead of 2.5, which means you really werent going 85 at the quarter. oh and make sure you count how much you weigh.

 

OK i didnt mark it but when the county redid the property tax thing they made a map of the area around my parrents house and it is acording to them exactly 1/4 mile from the road to the start of my parrents property so starting from the stop sign and going all out till it hits redline in second and then letting it drop to 1000Rpm so it will shift to 3rd and mashing it again i get to 85 on my speedo when i pass the edge of my parrents property. I weigh in at 325Lbs on a good day and adding that in would only make the needed HP numbers even higher. Is it possible to Punch out the unreinforced 2.8 block to a 3.4? im just trying to figure out why my car goes as good as it does. it has plenty of power to light up the 215/65/R15 tires i have on there so its got somethin. just noticed somethin the calculator said it used 18% for drivetrain loss what woud it probably be on a auto 3rd gen?

 

OK did some more thinking and for my car to do this i would have to remove 325 for me, 100+ for the tools, and 130 or so for gas so if the car has to weigh 2800 for it to go 85 MPh in 1/4mile. so my car weighs 2245 nah not possible. hell just to check it i just went out and did it again and got to just before the 85 MPH mark so some wheres between 82 to 85. tomorrow im gonna see if the grain elevator will let me weigh my car.

 

Your car is about 3100-3200lb range and the flywheel HP is rated @ 135hp.

Do not believe armchair gimmicks that tell you what HP you have or what you should pull in the 1/4- they are more often then not inflated to help peoples ego's.
Facts are facts, and the fact is- You know how fast your car is- does it make it fell any faster thinking its 192hp or 135hp or 3000? No. Its still the same when you in real life drive it. Its not about what the #'s are, its how it actually performs in the real world against other cars.

 

ok so that is all that is moving my car to 85 MPH in a government surveyed 1/4 mile of road? thats all i was asking. i was not computing anything by that i took the car out and watched the speedo as i did so. i just was wondering if that might be somewheres in a accurate ballpark of what HP it might be making. i would like to know but its not worth the cost of a dyno test for me to find out. ok then I have never lost to a stock FWD import. not saying there are none that will beat me but i have not found one yet.

 

i would go with probably not worth the $ for a dyno pull, but whatever floats your boat.

 

I just took all of the big tools and such out and took the car to the scales and it weighed in at 3,400 exactly with me in the car i was kinda surprised but thats ok. I weigh between 308 and 312 (just weighed my self on the scale) so that means the car with 1/4tank o gas is about 3090Lbs or so, not as much as i thought. dont mean to stir up the prior dumbness just wanted to say that. here in a week or so im gonna take out every thing that is not bolted in and see what she weighs bet it will lose at least 100Lbs more.
P.S. i would have gotten out and off the scale but the operator just let me sneak in line so i didnt want to hold up the scales.

 

It is possible the guy did a few things to your engine, but not enough to get 200horse at the fly.

The 2.8 block can not be made a 3.4, not enough meat in the walls. But can have the 3.1 crank, and slightly higher compression pistons.

Also, could have put a cam in it.
Possibly done some head work.

Again, all possible, but doubtful he got you up to the 200/fly mark.


Good deal on using grain scales, but dont over abuse it.


For reference to me on the weight..
85 camaro
2.8
auto
ps
removed ac
tilt
cruise
1/4 tank gas.

And it weights approx 3090?

 

yup and it wasnt the grain scales but the dump scales. Good those things are huge they had a semi with a 53' trailer on there its huge. but very accurate onetime we took a load of trash to the dump and forgot to take some stuff out so we had to go across the scales three times and they could tell that we only removed like 10Lbs of stuff off of a 20,000Lbs truck/trailer combo.

 

If thats 3090, I bet mine is damn close to 3000 then. If I ever get around to removing ac, I bet I could be under 3000.. WOOT.

 

Well I did a rebuild on my 2.8 and went with a 3.1 crank and aftermarket comcam and it does scoot a better than before. I guess you can ask the guy who rebuilt it if he perked it up a lil. I have already put a banged up 305 to rest and I have also been put to rest ( had no business trying a vette anyway. Got a little too happy.) LOL

 

If you have a t5 that at least a 100Lbs difference in weight. heck there was that much difference between the one i will eventually put in my car and the Dry 700R4 from my bros camaro. plus as i said i only took out the large tools i still have all kinds of wrenches and stuff in there which im gonna take out and get it reweighed soon.

 

I've got..
1991 Camaro
3.4
t5
PS, Tilt, AC(thats broke).

Extras..
Removed spoiler (6 lbs)
removed SRS (bag, sensors, ecm, some wires)
removed radio (deck, speakers, wiring still in car)
foam from carpet removed
foam on back carpet removed (this weekend)
other misc chunks of foam, dynomat removed.

Added weight
Larger swaybars
SFC's
Spohn tq arm
wonder bar
dual fans

I think if I removed the ac, I'd get under 3000

 

I do have a t5, also put in a new clutch before I put the engine back in just for the heck of it. So I can really feel the difference in power as to before the rebuild. I was thinking for a while that I should go to a v8 but I am happy with what I have done. These 6ers erally aren't all that bad if you show a little TLC.

 

when i had my v6 Rs weighed it came in at 2955 without me in the car with 1/4 tank of gas
thats with 16" rims and nothing removed

only options are auto/ac lol base 91 hardtop

when i had it dynoed it made 108 to the rear wheels

 

Really? Sweet. I really want to go get it weighed now.