max horsepower

[jcross]

can you get around 350 horsepower out of a 944 n/a without the use of a turbo?

[livewirevoodoo]

I've been on this board just shy of 2 years and have yet to hear of such a thing using the 944 engine as the powerhouse.

[jcross]

how much can you get , i gues since i have a porsche i want it to be fast

[livewirevoodoo]

i hear the carerra gt's are pretty fast off the line.

[ae1969]

Originally posted by livewirevoodoo
i hear the carerra gt's are pretty fast off the line.

LOLOLOL good one..........

Uhmmm I guess if you want 350 out of a 2.5 L with out forced induction..............

Uhmmm lets see ....... the new vette needs at least 6 L to get 500 hp

Maybe a throttle response cam would put you up at 350.

Sorry .......... no easy way to make that kind of power.

[Schumi]

The 3 litre 968 models were putting out, at their most, 238 HP. The 968's 3 litre was and I believe still is the highest output normally aspirated four cylinder ever in a production car.
I don't have any numbers but Broadfoot racing builds 94 engines from the ground up. They do a lot of turbos but they also do NA lumps. I'm not sure what they are making out of them but presumably more than the factory, I'm sure they polish up the heads and fit all high quality internals. I do know that they have produced a few turbo engines putting out 500HP. They do whole buildups including install (in fact now they require that they install the engine and tune it, not someone else) So if you really want more power... get a turbo and have them tune it up. I'm sure you can find you 350HP then.

(I'm sounding like SoCal Driver)

[Eldorado]

try hauling it with a Boeing...

[AaronM]

Originally posted by jcross
how much can you get , i gues since i have a porsche i want it to be fast

From an 8-valve, maybe 170 hp.

From a 2.5 litre 16-valve, maybe 190 hp.

From a 3.0 litre, maybe 240 hp.

Even a turbo requires modifications to the fuel delivery system and a change to a larger turbo to get into the 350 hp range.

You aren't ever going to get much more than 240 hp out of the largest non-turbo engine.

[CJFusco]

Porsche needs 3.8 liters just to get that kind of power out of a NA six... what makes you think you can extract that kind of power from a 2.5 liter four cyllinder design that is nearly 25 years old?

I think Porsche went to turbocharging for a reason.

[BananaClip]

I'm pretty sure that Earl guy with the yoda av used to have a carbed early car with like 300+ hp (he made a thread about it IIRC)

[lateapex911]

350 out of 3 litres is VERY high...but...I bet if you want a NA engine with the most power, send your bank account to John Milledge and you'll get everything possible.

[jcross]

i was just curious how much i can get out of it,thats all. i dont need 350

[sca037]

Originally posted by Schumi
The 3 litre 968 models were putting out, at their most, 238 HP. The 968's 3 litre was and I believe still is the highest output normally aspirated four cylinder ever in a production car.

This was indeed true, until the '00 Honda S2000 squeezed 240HP from a 2.0L N/A engine.

jcross:

The 944 is an extremely well balanced car, so enjoy the package because it's a pretty rare thing to find right out of the box......even today.

Brian

[livewirevoodoo]

Originally posted by AaronM
From an 8-valve, maybe 170 hp.

From a 2.5 litre 16-valve, maybe 190 hp.

From a 3.0 litre, maybe 240 hp.

Sounds like a very reasonable rough estimate.

Always comes down to how much you are willing to spend to get there. On an NA you can drop a couple of thousand and see some decent HP gains over stock, but nothing as significant $ per HP-wise as you would with a turbo. Drop the unsprung wieght of the car is always another option, and usually the cheapest.

The 944 isn't going to be fast off the line regardless of mods. Understanding the powerband and handling characteristics of this car will go far in developing your appreciation for what it can/cannot do.

[Dave L]

I cant confirm or deny but doesnt 190Hp seem low for the 16V, stock its 188hp, I would think a combination of intake exhaust P&P and all the other tricks would get a little more that 2HP.

I suppose the good news is that if it true I will have no reason to touch my engine

[lateapex911]

Originally posted by Schumi
[B]The 3 litre 968 models were putting out, at their most, 238 HP. The 968's 3 litre was and I believe still is the highest output normally aspirated four cylinder ever in a production car. ..........

Yes, I imagine it is still...the Honda mentioned above was the highest specific output 4 cylinder ever available NA, production, at 120 hp per litre.

the 3.0 litre is capable of about 250 or more, with a trick header, full balance and blueprint, a raise in compression, head porting, cam work, fuel injection work, and Motec.

[CJFusco]

Originally posted by sca037
This was indeed true, until the '00 Honda S2000 squeezed 240HP from a 2.0L N/A engine.

Yes, that's the beauty of an engine that will rev to 11K!

[sca037]

Originally posted by CJFusco
Yes, that's the beauty of an engine that will rev to 11K!

The 2.0L has a redline of 9,000 (9,200 cutout), but might survive 11,000 on a botched downshift if you're lucky

Brian

[lateapex911]

I should modify my statement about the Honda being the highest specific out put 4 cyclinder made....by adding " in a car", as 4 cyl bike engines routinely put out 170 or so from 1200cc. (1.2 llitre).

Of course they are doing that based on pure revs, in the 17,000 range.

[Schumi]

as with what sca037 said- it's more about the balance of these cars than the off the line speed. It may not be blindingly quick 0-60 or such but once its moving it wants to keep moving, no matter how tight of twisties you throw them through. Instead of looking for more power I would suggest finding out how great the car handles. Mine is the best handling car I have ever been in (well, sans a few 911's... but not all***)
The real treat is learning and enjoying the great weight balance. With a 944 you are getting a wieght balance that many supercars wish they had..... and the handling that results from it.

That said, I am pleasantly happy with my 24S's power. Plenty of get-up and go, with the ability to induce wheelspin at the drop of a hat for southern shenanigans.