Well, the moment of truth is coming. I'm heading to the Dyno, either tomarrow or Thrusday. Haven't decided yet, but the professor will run me any day from Tues. to Thurs. so, i'll be posting results soon.

I'm not expecting to be a powerhouse, just to learn where i'm starting at. All she's got is...

2.8L bored .040 over
Heads milidly milled
K&N filtercharger (or just filter. lol)
New 3" I-Pipe,
Flowmaster Muffler (80 series)

 

The .40 over should make it almost a 3.0 liter.. that should be good for 12-15HP I hope.. I would bet 121-153HP, but lean towards the 121..

 

dude a bone stock 2.8 is 138 HP, how can it go to 121..

im saying between 145-160

 

Thats before it goes through the transminssion, drivshaft, and rear-end. Theres this little thing called Friction which takes that 135 down, 15-20%.
So stock you may be running 100-110 hp if


I'd say 85f-bird is proably around the 135-145 mark (at the rear wheels)
.

[This message has been edited by Joe_L (edited October 10, 2001).]

 

you guys have no idea how much i'm hoping for more hp, but who knows what happens. The motor is a Jasper rebuilt block, and i've been informed that the .040 bore over is standard. It's got 12k on the block right now, so we'll see come a little later today. whoa, two more hours to wait.Oh, and the tranny is fresh off a rebuild too, so hopefully i i won't be losing to much power in it, although loss is inevitable, especially when u add up tranny, driveshaft, rear gears, axel, and wheels, there's a lot of junk to get turned, and a lot of energy to get wasted. i'll keep you posted.

 

how big are your rear tires?

 

double post, oops.

[This message has been edited by Project: 85 2.8 bird (edited October 09, 2001).]

 

Why dont you ask then to dyno it with and with out the K&N filter, just to see

Do post your results, It will be interesting how much more the +40 will give you compared the the stock rating.
SSC

Edit: I will give an estimate of 155/160 at the fly.

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85 Camaro, 355/400 "drag car" in moth ***** 13.1@ 101mph on its last season run.
Plans: Possibly add N20 for next season.
82 Firebird, 305/350 currently moth balled.
Current plans: Rebuild 305 with flat tops instead of the dished "cups" for pistons or slightly built 327 with the 58cc heads from the LG4, Upgrade the 2:73 to 3:73 or 3:42 and replace the turbo 350 with 700r4.


"Web site under construction"

G0D Bless.

[This message has been edited by SSC (edited October 09, 2001).]

 

Im wondering on your numbers... im expecting pretty good results.

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Thirdgenless and looking for a car!
In Memory of #3 Dale Earnhardt

 

well bad news i went over to the Power & Transportation department and the dyno isn't working properly. My professor said that he had the Dyno serviced 1.5 years ago, and it's ok, but the reset button isn't working, so u can't raise the lift to get the car off of the dyno. So, without being able to get the dyno to reset we can't run it. The professor said he'd get an electrician in today to see if he could fix it, if not he'll have to call Clayton Dynometers, but i'm supposed to check back in with him on Thurs. I'll tell ya what happens then.

 

oops

[This message has been edited by Joe_L (edited October 10, 2001).]

 

well got the dyno done...we only tested HP, but anyway the results were 126hp @ roughly 4900 or so...that was in third gear, he said he didn't want to keep going to high, cause the dyno rollers aren't made for speeds that are incredibly high? not sure about that. but those are the numbers.

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the 85 firebird, the first firebird that doesn't burn out....

It eats the pavement!!!

Nicole (my car):
2.8L bored .040 over
rebuilt 700R-4 w/shift kit and vette servo
3" I-pipe, with Flowmaster 80 series
2.5in. tailpipes into split tips (quad-pipes )
Loud Yes, Fast no. but a Turbo will fix that.

KILL LIST: (SHORT BUT GROWING)

Dodge Daytona (think a 2.2),Honda Acorda (2.0L),2000 Camaro (3.8L),1992 Mustang (V6),1987 Firebird (2.8L),80's probe (4 banin'),90's malibu,90's 4 door Saturn, (wow, that was a slow ride, even slower than me.),91 Celica GT conv.,Acura Integra, 5speed DOHC 4 cylinder. * 86-90 Pontiac T/A, 305ci. (might not have been running well, but i'll count it anyway.), mid 90's Ford Mustang GT 4.6L tags. (beat him in a turning contest), 3rd gen RS camaro( beat him by more than 2 cars), Celica GT (this guy was a crazy racer), 2000 honda civic (stickers, paint, new from facia, guages, no cat, with straight pipe, ... was a very good race, oh did i mention he had a 5 spd.
---came close----
1979 camaro (5.7),1981 camaro (5.7),1982 firebird (5.0) my tires spun, I coulda beat em!!! ,79 El Camino (350, lost by a door),96' Mustang, 3.8L stickshift. (caught him after my car downshifted.)

 

Didn't do torque? Hp is based on a formula using torque.....how's it do HP w/o torque?

 

How could I go about finding a dyno in my area? anybody know

 

Jiffy, ud need to cruise up to North Hollywood and see Morgan Motorsports... there are probably more around you. Check the phone book under automobile-performance shops.

------------------
1972 Chevy Malibu
Hooker Headers, Flowmaster 40 series mufflers, accel 8.8 wires,Edelbrock performer intake Edelbrock Carb, Torque Thrust "D" wheels
Click here for my Malibu information
In Memory of #3 Dale Earnhardt

 

well i do believe that the way the machine is setup, resistence is given against the actual dyno wheels (don't know tech. term) then the car turns those wheels, the result is given as HP to the road and is read on a little old needle sort of setup. Not exactly some hi-tech computer model, the machines not supposed to run over 65mph i don't believe either, but we were doing about 80 or so...not to sure, but that's the way i understand it.

 

Exactly, but a dynomometer measures torque, and then the formula for HP is HP=(Torque*RPM)/5252

So how did you not get a torque reading? Although.....hmm....if it's 126 @4900 then your torque should be: 117ft lbs @ 4900...or something along that lines. That's not your maximum torque though, it'd depend on the way your torque curve looks.

 

using the formula provided by Ovrclck 350 i calculated 135 ft.lbs of torque i am not sure of the rpm though i think it shoud be around mid range or so

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1992 Camaro RS.
mods:flowmaster,catco high flow cat,k&n, MSD coil,bosh 4+ and 8mm wires,Redline engine and gear oil, Jet chips stg 2, single piece driveshaft.

 

All dynos measure Torque. There is now way to measure HP. As said above HP is calculated of torque. There were two seniors here at school last year that did a dyno design for their senior design. This inclded many months of research.
The way the dyno works is it has a brake mechenism of some sorts, sometimes even a water brake system. Anyways this puts a load agains what is driving the dyno.
The dyno measures how much Twisting force is applied to the drums that are spinning. The twisting force is defined as torque. Hp is a measure of how quickly it is done, that is where the RPMs come in. Then the constant, Which I forget how it was derived, something about a horse if I remember right, concluded the formula to make a meaningful relationship.
So basically Torque is the amount of work you can do and HP is the rate at which you can do it.
That is why diesels can pull huge loads, but when unloaded they are not that much faster. Lots of power, low Rpms.
SO anyways That guy might have had a guage hooked to his dyno that read HP, but it was based of the Torque that you engine was making.
I would think a dyno pull without a graphical print out of HP and Torque would be useless. That would be like running the 1/4 and only getting your trap speed and nothign else, no 60' time and no reaction time and no ET.
Though it would be nice to know how much HP your car is making at the wheels, but without more information you have no clue where to start tuning at to make more.

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89 Trans Am Turbo 3.8L All stock 43,000 miles #1053 of 1555

Past Thirdgen:
86 Trans Am w/ built 355TPI with SLP goodies and too much other stuff to List. One sweet *** car, wish I would have had a good enough Job to pay insurance on three cars so I could keep it, but for a 89 Turbo Trans Am w/ Low miles, I think I made the right choice!