Horsepower Limit?

[AYF80]

If the N54 can push 8-900 wheel on a stock block, I'm pretty sure the S55 can push 1,000 without a build.

[BMW M4 PWR]

Originally Posted by Fender150

I understand what you're saying, Tq and Hp as you know are interconnected,
while i like the S55, this is no 2JZ lol

If it turns out putting 900 WHP on stock internals you bet your ass it would be. The superior dual Vanos top end offers significantly better area under the curve airflow through the head as well. I owned and tuned many MKIV Supras back in the day... that motor was strong, but a dinasour compared to a modern performance motor like a S55*

Anyway let's not hijack this thread with 2JZ vs S55, this thread is about stock block HP limits which I mentioned aftermarket exhaust manifolds would great assist in*

Originally Posted by AYF80

If the N54 can push 8-900 wheel on a stock block, I'm pretty sure the S55 can push 1,000 without a build.

Exactly* And the S55 is basically a *closed deck* design which is much stronger in strength-design than the N54. Once we start seeing large single set ups on S55's as well you see power approaching 1000HP! The old 2JZ's couldn't touch anywhere near that reliably.

[Fender150]

well if thats the case, why havent any reputable builders made nice
tubular manifolds yet, that would be the ultimate test to those internals

[BMW M4 PWR]

Originally Posted by Fender150

well if thats the case, why havent any reputable builders made nice
tubular manifolds yet, that would be the ultimate test to those internals

...yes it will* As a community we need to get this going already!

[MEXICO NEW YORK]

Originally Posted by TTR

I have the same config with PureTurbos as well, also thinking to put meth+make more boost

How do you like that set up with the pure turbos??

[TTR]

Originally Posted by MEXICO NEW YORK

How do you like that set up with the pure turbos??

It's like another car, differen lvl, have a straight akra exhaust without cats with evo pipe + pure turbos and the car really like a beast) sound and acceleration is crazy, in stock car is very slow(

[Zoli007]

This is certainly great news to those looking for just a mild tune. Seems the engine is very strong where an extra 100hp really does nothing at all for reliability.

[MEXICO NEW YORK]

Originally Posted by BMW M4 PWR

Are you asking about the new Exhaust manifolds? Or crank hub fix that have already been discussed a 100 times with several threads on the topic you can research already with the shops that make them. Regarding aftermarket exhaust manifolds I cannot comment on who's working on them/etc, (I'd be blackballed for life lol) the vendor(s)/shop(s) working on them will release it when THEY are ready brotha..

I am pretty sure i have read all of the relevant threads on them, and after all of that, the best information i gathered is that if the stock one goes, it is usually not catastrophic, and that if you replace them, and then the aftermarket one goes, it can be more catastrophic and have a significantly lesser chance of being covered by BMW, if any chance at all. So when you say "solution" i am curious the thread and particular solution you are referencing

[cookiesowns]

Originally Posted by Fender150

well if thats the case, why havent any reputable builders made nice
tubular manifolds yet, that would be the ultimate test to those internals

There has. Just tuning was an issue. We're barely tapping the discovery of the tables and ROM calibration/program of the S55 172G.. soon... soon.. there will be custom logic written on the S55 ROM version to allow for better tuning of big singles with just one EWG

[dmx9947]

How much WHP can S55 stock engine hold（maxlimit),because now I'm the ps3 upgrade the fuel system with spool.

[SickGTR]

Originally Posted by AYF80

If the N54 can push 8-900 wheel on a stock block, I'm pretty sure the S55 can push 1,000 without a build.

[TopJimmy]

Originally Posted by dmx9947

How much WHP can S55 stock engine hold（maxlimit),because now I'm the ps3 upgrade the fuel system with spool.

Check out F80Paul's website. I think at about 650HP is where the "built motor" level comes into play. It's not the HP but the TQ (look for the newton meter rating). Somewhere he mentions what Nm number to stay under to keep stock rods safe. Above this Nm level you need stronger connecting rods, and most do pistons at the same time.

[papasmurf_m3]

800 whp all day. 850 safe limit.

650 wtq all day or less.

Heard the rods start bending after 680 wtq.

[TopJimmy]

Originally Posted by papasmurf_m3

Heard the rods start bending after 680 wtq.

Papa knows.

[tbrogreene]

Originally Posted by BMW M4 PWR

Not necessarily, they've already proven to take 700+rw TORQUE at low rpm without bending rods right? You DO realize 900bhp is less stress than that if you simply push and maintaining the torque curve more right on the graph... (do you even know what I'm referring to btw? No pun intended) ...these will do more than 800WHP easily with larger frame turbines on stock internals... modern day 2JZ

Das Right. Modern Day 2j's.... post Crank hub upgrade

assume good upto 800whp

pS2+ won't get you there though

[F80_Greg]

Originally Posted by tbrogreene

Das Right. Modern Day 2j's.... post Crank hub upgrade

assume good upto 800whp

pS2+ won't get you there though

PS2+ will most definitely make over 800whp lol. All depends on your supporting mods such as fueling and how far your tuner is willing to go.

[Twistm4]

Originally Posted by Fender150

I understand what you're saying, Tq and Hp as you know are interconnected,
while i like the S55, this is no 2JZ lol

You're right, it's much faster hp vs hp, insanely cheaper and has 3x the better powerband.

I've gapped 3 different 2j cars varying from stock to built longblock on the highway. One making well over 750 to the tire. They are slow laggy turds compared to s55.

So yes, you are right they are no 2jz lol.

[HyeM3]

Originally Posted by Twistm4

You're right, it's much faster hp vs hp, insanely cheaper and has 3x the better powerband.

I've gapped 3 different 2j cars varying from stock to built longblock on the highway. One making well over 750 to the tire. They are slow laggy turds compared to s55.

So yes, you are right they are no 2jz lol.

Can you clarify the insanely cheaper part, I'm genuinely curious. Can't you buy a 2J for like $2500 bucks and make it 1000 hp+ capable for under $10k whereas buying a used S55 and building it yourself would still be close to like $20k? Or has there just been some crazy inflation on 2J's because of all the YouTube and social media hype?

[SickGTR]

Originally Posted by Twistm4

You're right, it's much faster hp vs hp, insanely cheaper and has 3x the better powerband.

I've gapped 3 different 2j cars varying from stock to built longblock on the highway. One making well over 750 to the tire. They are slow laggy turds compared to s55.

So yes, you are right they are no 2jz lol.

You seem like someone who just thinks BMW is above all others. I've raced tons of Supras in my GTR. Not sure where you are getting that 2 Jz are laggy and slow. It's one of 2 cars I have lost to ( from a roll ). The guys I know who have them are all anti-lag/break boosting so Laggy i think not. I respect the S55 but I wonder in 30 years people will still be wanting and building them as they are with the 2JZ. I also laugh at anyone thinking the stock S55 is going to hold up to 900-1000 horse power. Please be sure ( honest ) to post up pics when the block is blown apart. Ticking time bomb if your driving the car to its abilities.

[Twistm4]

Originally Posted by SickGTR

You seem like someone who just thinks BMW is above all others. I've raced tons of Supras in my GTR. Not sure where you are getting that 2 Jz are laggy and slow. It's one of 2 cars I have lost to ( from a roll ). The guys I know who have them are all anti-lag/break boosting so Laggy i think not. I respect the S55 but I wonder in 30 years people will still be wanting and building them as they are with the 2JZ. I also laugh at anyone thinking the stock S55 is going to hold up to 900-1000 horse power. Please be sure ( honest ) to post up pics when the block is blown apart. Ticking time bomb if your driving the car to its abilities.

Because its the sad truth unfortunately. They don't punch near as hard as a modern torquey DI/DCT/FE car does WHP vs WHP. If you actually think that you are 1) inexperienced or 2) grew up on a bit too much Fast and Furious. I've ran various set ups over the years, feel free to check my channel if you don't believe me. They are incredibly expensive to actually do in the real world and the midrange (average power/area under the curve) of a 900whp stock bottom end 2jz is literally the same as an e85 s55 max effort. There is a LOT more going into speed than just peak hp, and these european car companies are really starting to figure that out.

And for the bmw fan boy part LOLOLOL. This is my first and likely only bmw platform I would ever own. An ebay Turbo Junkyard LS would put the fastest s55 on here in its place roll or dig, so not sure what you mean there. They are very capable platforms, and for the power levels they are nearly unrivaled on the freeways. But the best for going fast for the money? Def not.

[Twistm4]

Originally Posted by HyeM3

Can you clarify the insanely cheaper part, I'm genuinely curious. Can't you buy a 2J for like $2500 bucks and make it 1000 hp+ capable for under $10k whereas buying a used S55 and building it yourself would still be close to like $20k? Or has there just been some crazy inflation on 2J's because of all the YouTube and social media hype?

Absolutely not. To find a decent GTE core these days is outrageous for what you're getting. Most that are serious and just HAVE to do 2j, have been picking up NA blocks and just swapping aftermarket guts over and getting block filled or supported. But even then you are talking 14-20k before even trying to actually source a legit mk4 chassis (and I'm sure you've seen current prices on those).

[SickGTR]

Originally Posted by Twistm4

Because its the sad truth unfortunately. They don't punch near as hard as a modern torquey DI/DCT/FE car does WHP vs WHP. If you actually think that you are 1) inexperienced or 2) grew up on a bit too much Fast and Furious. I've ran various set ups over the years, feel free to check my channel if you don't believe me. They are incredibly expensive to actually do in the real world and the midrange (average power/area under the curve) of a 900whp stock bottom end 2jz is literally the same as an e85 s55 max effort. There is a LOT more going into speed than just peak hp, and these european car companies are really starting to figure that out.

And for the bmw fan boy part LOLOLOL. This is my first and likely only bmw platform I would ever own. An ebay Turbo Junkyard LS would put the fastest s55 on here in its place roll or dig, so not sure what you mean there. They are very capable platforms, and for the power levels they are nearly unrivaled on the freeways. But the best for going fast for the money? Def not.

With tuning now a days, set up you torque how ever you want. My only point was, the motor is from the early 90's and has proven to take a beating. No matter what motor you are building w/turbo, there is no cheap way of doing it. If you do it right. Of course when I built my 350 Z in 2004, it was way cheaper than my GTR, but to be expected. Maybe the 55 will be something that's sought after for years to come. Time will tell. I would hope motors now a days are better, it's almost 30 years since that Supra came out.