UPDATE! Nissan 4cyl turbo engine = the bomb!!! 526 rwhp on stock internals

[Eli]

Originally posted by: Ronstang

Originally posted by: Eli

Originally posted by: Encryptic

Originally posted by: notfred

Originally posted by: Encryptic

Does a higher octane gas really make that a big of a difference, or are you just joking around?

That car would die if they tried to make 500hp on 93 octane gas. It would ping like hell and end up breaking a rod or blowing a hole in a piston.

Did you think that they put 104 octane gas in it just for fun?

OK, that makes more sense. I knew high octane gas detonated or burned faster, thus providing a little more oomph, but I didn't realize it would be THAT bad to run a lower octane.

*peaks in*

No, the higher the octane, the slower the fuel burns. Higher octane gas doesen't contain more energy, it actually contains less.

The only purpose of high octane fuel is to use it in a high compression and/or forced induction engine. The reason engines designed for high octane fuel develop more power isn't because of the fuel, it's because of the design of the engine. The higher compression ratio more than compensates for the lower energy content of the fuel.

There are so many people that believe the higher octane fuels are actually higher quality, which they are not. Infact, you aren't doing your engine any good by using high octane fuel if it wasn't designed for it.. not to mention slightly less power and a lighter wallet.

Looks like someone needs to peak in on you...as you are incorrect also.

You are correct that higher octane fuels burn slower and it is this resistance to burn that allows them to not pre-ignite in an engine with a rather high compression ratio and thus they are used in NA cars with high static CRs and cars with forced induction but fuel has the SAME BTU content regardless of octane level and thus the same energy potential....PERIOD! And higher octane fuels (race gas....not pump gas) are definitely of higher quality than the stuff you pick up at the corner Exxon station....they have a much higher partial pressure and atomize extremely quick....I have spilled C-14 on the ground filling a tank and it evaporated so fast it left no wetspot at all.

The myth about high octane gasoline being a super fuel cracks me up. People that run high octane gas in a car that doesn't require it are shortchanging themselves in two ways....they are spending more....and making less power. Since the higher octane fuels resist burn better they are harder to ignite in lower compression engines and burn slower and more incomplete and thus the engine actually makes LESS POWER. I love to watch people wasting their money at the gas pump putting 93 in grocery getter all the time thinking they are getting a better fuel.

Uh? You just repeated what I said.

It appears that you're right about the energy content thing. Interesting. Although I didn't think the energy content difference was enough to really write home about.. I thought it was just because of the different carbon chain lengths used, but apparently they compensate for energy content.

I wasn't talking about racing gas, I was talking about pump gas. There are a lot of people that think Premium is better quality than Regular, that's what I thought was funny.. which you, again, pointed out in your second paragraph.

 

[wasssup]

Originally posted by: Ronstang

Originally posted by: Eli

Originally posted by: Encryptic

Originally posted by: notfred

Originally posted by: Encryptic

Does a higher octane gas really make that a big of a difference, or are you just joking around?

That car would die if they tried to make 500hp on 93 octane gas. It would ping like hell and end up breaking a rod or blowing a hole in a piston.

Did you think that they put 104 octane gas in it just for fun?

OK, that makes more sense. I knew high octane gas detonated or burned faster, thus providing a little more oomph, but I didn't realize it would be THAT bad to run a lower octane.

*peaks in*

No, the higher the octane, the slower the fuel burns. Higher octane gas doesen't contain more energy, it actually contains less.

The only purpose of high octane fuel is to use it in a high compression and/or forced induction engine. The reason engines designed for high octane fuel develop more power isn't because of the fuel, it's because of the design of the engine. The higher compression ratio more than compensates for the lower energy content of the fuel.

There are so many people that believe the higher octane fuels are actually higher quality, which they are not. Infact, you aren't doing your engine any good by using high octane fuel if it wasn't designed for it.. not to mention slightly less power and a lighter wallet.

Looks like someone needs to peak in on you...as you are incorrect also.

You are correct that higher octane fuels burn slower and it is this resistance to burn that allows them to not pre-ignite in an engine with a rather high compression ratio and thus they are used in NA cars with high static CRs and cars with forced induction but fuel has the SAME BTU content regardless of octane level and thus the same energy potential....PERIOD! And higher octane fuels (race gas....not pump gas) are definitely of higher quality than the stuff you pick up at the corner Exxon station....they have a much higher partial pressure and atomize extremely quick....I have spilled C-14 on the ground filling a tank and it evaporated so fast it left no wetspot at all.

The myth about high octane gasoline being a super fuel cracks me up. People that run high octane gas in a car that doesn't require it are shortchanging themselves in two ways....they are spending more....and making less power. Since the higher octane fuels resist burn better they are harder to ignite in lower compression engines and burn slower and more incomplete and thus the engine actually makes LESS POWER. I love to watch people wasting their money at the gas pump putting 93 in grocery getter all the time thinking they are getting a better fuel.

maybe that 'grocery getter' is a sleeper with a turbo setup

 

[gregshin]

that car is strictly used for drag racing purposes only and is a testbed on wheels

 

[Rallispec]

Originally posted by: isekii

Originally posted by: Dead Parrot Sketch

Originally posted by: isekii

Originally posted by: Dead Parrot Sketch
On stock internals ? If that is lierally true and this level of HP is sustainable and reliable it certainly is very impressive !

What is the stock HP for that engine ?

Prolly got upgraded fuel system tho. Larger injectors, pump, etc...

I'm sure it does. But I'm more impressed if the stock rods, pistons, crank, and bearings are up to 500 HP ?

Not to mention the drivetrain, but that's another issue. I doubt those will be stock.

Well the Toyotas 2JZ-GE can handle upto about 600hp on stock internals.

isnt that a 6 cyl. ?

 

[funks]

Well the Toyotas 2JZ-GE can handle upto about 600hp on stock internals.

isnt that a 6 cyl. ?[/quote]

He was wrong, it's an inline six so it's not comparable to what was shown above..

Nevertheless, the Toyota 3S-GTE is capable of similar improvements as the 2JZ-GE.. Said engines are in the 6Th Generation Toyota Celica GT4 (3rd Gen) - and they have a 4th Gen 3S-GTE in a car in Japan (Toyota Altezza) (older MR2's have them too - 2nd gen though). The engine is proven in WRC Oh yeah, it's an IRON block engine, not aluminum.

 

[ander]

Nice work.

A motor is electric.

 

[Ronstang]

Originally posted by: ander
Nice work.

A motor is electric.

Well, techinically I agree with you but in automobile vernacular it is often used when referring to the "engine" and THIS seems to agree.

 

[Eli]

Originally posted by: Ronstang

Originally posted by: ander
Nice work.

A motor is electric.

Well, techinically I agree with you but in automobile vernacular it is often used when referring to the "engine" and THIS seems to agree.

Yep..

Both are technically correct.. but I agree, I get annoyed when people call an engine a motor, too. I reserve motor for electric motors.

 

[Aimster]

Nissan Silvia .. mm

Great car. Will smoke 99.9% of the cars on the road.

 

[Ronstang]

Originally posted by: Aimster
Nissan Silvia .. mm

Great car. Will smoke 99.9% of the cars on the road.

Typical fanboy.....lives in a dream world of erroneous information.