are the numbers real or bs. the 50whp would come from combing their 2.4l cam(20whp) and their 2.4l performance head(30whp). i would like to know because if it's possible, then a 2.4l n/a build would float my boat.
Not even remotely feasible, don't get your hopes up.

fortune cookie say:
better a delay than a disaster.
You don't add HP gains. This isn't math class.

I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
lol, simple way to put it OHV notec, thanks dude. hypsy, relax. I do add when i try to ESTIMATE hp numbers, which ur right to an extent because advertisements r bs these days and that all cars r different, but like i said it was an estimate.
No...you CAN'T ADD HP NUMBERS TO ESTIMATE. IT DOESN'T WORK THAT WAY. Example....
Cams alone could add 15HP.
Head alone might add 10HP.
Together they might add 18HP.
There's no way to tell what 2 mods will do for and with each other in terms of power numbers.
Not trying to be and ass or anything. Just trying to correct you before you go too far astray.

I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
think of it this way....... the GM Ecotec SUPERCHARGER bumps the power from 140-145 (forgot which) up to 200. so about 55-60 hp from a super charger and reflash, now do you really think a ported head with a mild streetable cam is gonna have the same power gain as forced induction?
if your ports in your stock head were about as free flowing as straws that kind of power gain may be possible, but that is nowhere near the case....
also if you do some research........ look at this thread
http://www.j-body.org/forums/read.php?f=2&i=367119&t=367119
Speedracerz - he dyno'd his 2.4 at 171hp/158Trq
which in his profile
MODIFICATIONS
Engine:
* **NEW** Engine and Trans ARE IN
* Powder Coated IDI cover (Gunmetal) with polished ribs and letters
* Miller Performance modified 2.3 LO (200*/.375" lift) Intake Cam
* 2.3 HO (212*/.410" lift) Exhaust Cam
* Stock 2.4 Intake cam tower and 33mm lifters
* 2.3 Exhaust Cam Tower w/ 35mm Lifters
* 2.3 HO Intake/Exhaust Valve Springs
* Port and Polished LD9 Head w/ Stainless Valves (Shaved .010")
* Cometic .074" MLS Head Gasket
* ARP Head Studs
* Wiseco 9.5:1 (.040" overbore) Pistons
* Eagle Rods
* Clevite 77 Main/Rod bearings
* ARP Main Studs
* LD9 Block Modified for 2.3 Oil Pump
* 2.3 Oil Pump Conversion
* Miller Performance Oil Pan
* Ported 2.3 HO Intake Manifold
* FDP Billet Aluminum 65mm T/B
* PaceSetter Ceramic Coated 4-1 Header
* Custom 2.5" Down pipe
* 2.5" Cat Eliminater Pipe
* Stock Z24/LS Sport cat back
* UR Underdrive Pulley
* Aeromotive LT1 AFPR
* Fuel Gauge on Fuel Rail
* AC-Delco/Vortec Fuel pump (25163473)
* RK Sport upper and lower mounts
-Transmission
* Spec 8lb Aluminum Flywheel
* Spec Stage 3 Clutch
* Team GREEN LSD
* Prothane Urithane Trans Mounts
* HPTuners Software
like OHV said..... its no even remotely feasable...... theres a better chance of lightning shooting out the toliet up your butt while a fly pig bitch slaps you. unless there is dyno proof do not believe ANY claimed power gains companys list
lol, funny sh*t darkstar. hpsy, i understand, thanks guys
I would say if you want a good guesstimate of the total power then add up the individual power increases then divide by 2 and that will get you in the ballpark. So 30 + 20 = 50 then divide by 2 = 25 hp.
2000 Z24 5spd header & catback for now.
woot......... i seen my name
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
Dale Young wrote:I would say if you want a good guesstimate of the total power then add up the individual power increases then divide by 2 and that will get you in the ballpark. So 30 + 20 = 50 then divide by 2 = 25 hp.
no it wont get you in ballpark.... its a blind, uninformed, uneducated guess.
There is absolutely NO mathematical equation to get you even remotely close to figuring out power gains. There are a billion variables, every car is different, every car reacts different, condition of the engine, condition of the trans, condition of the fuel system, condition of ignition system, regular wear and tear, humidity, temp, altitude, wheels, automatic or manual trans, drivetrain loss, other mods, everything..... everything has an affect, if you are extremely good with math and know everythign form the drag of the alturnator to the affect of dirty transfluid and a billion things in between you could come up with a ballpark number......... its not as simple as add the claimed gains and divide by 2, that could be the single dumbest thing I've ever read on this forum.
before and after dyno in climate controled room is the only real way to get a REAL power gain figure.