: Hp without supercharger



nunii
04-24-13, 11:57 PM
How much hp does the engine have without the supercharger ?

1997BlackETC
04-25-13, 12:42 AM
My guess would be around 420 or so, thats around what the N/A 6.2 engines have in the Pontiac GXPs and the Camaros.

Smokin80
04-25-13, 01:31 AM
you are likely looking at more like 325 to 350 hp. These engines only have a 9 to 1 compression ratio. They are not setup to work as a naturally aspirated engine so the power would be less than a 6.2 from the gxp and camaro.

Jinx
04-25-13, 03:59 AM
This is a very strange question.

muohio
04-25-13, 09:18 AM
On the flip side, think about how much power the engine would be making if something else was driving the blower.

Zhariak
04-25-13, 09:22 AM
i thought it was the same engine as the Escalade. 403HP or something (without the supercharger ofcourse)

Trapspeed
04-25-13, 11:42 AM
I can't imagine this blower adds over 200 HP.

HUGN*RDS
04-25-13, 12:22 PM
escalade runs the L92 which is different than the LSA

Jinx
04-25-13, 12:57 PM
On the flip side, think about how much power the engine would be making if something else was driving the blower.

Another engine?

DavidPR
04-25-13, 01:17 PM
If the SC goes out, wouldnt you lose a ton of power from not having a proper intake manifold? My friends Audi lost its Turbo and without it it could barely move.

Smokin80
04-25-13, 01:45 PM
A 9:1 engine with a supercharger based cam is not going to make a ton of power. I am very confident you wouldn't see more than 350hp out of it.

If you didn't have to drive the charger I bet you would see an easy 50 plus hp.

But who really cares.

1997BlackETC
04-25-13, 03:10 PM
Darn, I should not have got my new Jetta TDI, I coulda just removed the blower belt on the CTS-V and got 25 MPG.

CTSV4now
04-25-13, 05:50 PM
If 14 psi doubles the output of the base engine, then 9 psi would increase the base HP by 9/14 or .64

556 HP = base HP + boost HP
boost HP = base x .64
556 HP = base HP + .64 base HP
556HP = 1.64 base HP
556/1.64= base HP
339 HP = base HP

wait4me
04-25-13, 06:01 PM
I think I remember doing this back in 2008 or early 2009 ill have to look up the dyno charts.. It was high 360s if I remember right. 470s with blower in stock form on same car. Intake was stock ls3 with the guards cut off making it fit with temp tubing for air stuff. This was with no tuning of course, just intake changed.

1madstsv
04-25-13, 06:01 PM
If you just take of the belt but let the blower on the car it's not even going to make 300. That 339 is with out the blower just siting and blocking all the air. And it will get real bad mpg,s.

JKG
04-25-13, 09:43 PM
the engine wouldn't run if the supercharger belt was disconnected. An honest question to start the post, but the supercharger is the intake system. If the rotors dont move, then no air can get in at all. If you left the engine as is, and replaced the supercharger with an intake of another LS engine, it would run poorly because the rest of the engine is designed to be supercharged. Just really not answerable. Not the same as engines that are originally not designed to be supercharged and have an aftermrket centrifugal blower (vortech, paxtom) added on later.
You could take a 6.2 L engine and, depending on timing, heads, and cam, get anywhere from 200hp to 600hp without a supercharger.

1madstsv
04-25-13, 11:29 PM
[QUOTE=JKG;3296232]the engine wouldn't run if the supercharger belt was disconnected. An honest question to start the post, but the supercharger is the intake system. If the rotors dont move, then no air can get in at all. If you left the engine as is, and replaced the supercharger with an intake of another LS engine, it would run poorly because the rest of the engine is designed to be supercharged. Just really not answerable. Not the same as engines that are originally not designed to be supercharged and have an aftermrket centrifugal blower (vortech, paxtom) added on later.

Not true at all it will run not good but it will. I drove over 150 miles with out the belt on it had no power like i said but it ran 70-75 mph fine. Broke the belt racing and did not have a spare I do now in the truck and the tools to put it on.

1997BlackETC
04-26-13, 12:25 AM
Any check engine light driving it without the belt?

1madstsv
04-26-13, 07:37 AM
Not in the 150 miles I drove.

baabootoo
04-26-13, 10:56 AM
My guess would be around 420 or so, thats around what the N/A 6.2 engines have in the Pontiac GXPs and the Camaros.

Exactly. They had the lower compression engine i the newer Camaros that mated to the auto trans. The manual transmissions had the LS3, so were a little higher. My belt and idler pulley also broke and I was able to drive days w/o an issue. I did NOT go full throttle though either.

Betiwin
04-26-13, 11:00 AM
Exactly.

Nope Not Exactly. As others have stated compression and cam. It would be low mid 300's