[SKILMATIC]

It's the compressor side of the ct26 that is far out of it's efficiency range at 40psi.

So then you are telling me that a bigger turbo produces less power? Please tell me is that what you are saying?

Also be warned (again) that if you try to push 40psi from the stock twins they'll grenade. The shafts aren't thick enough to tolerate that much stress.

And you know this how? Please submit a link for me where it says that the ct26 is rendered useless at 20psi. You do this I will shut up. I promise.

Upon which restroom wall did you read that 'gem' of turbocharging technology? Do you even know what a turbocharger is? Based on your post, I seriously doubt it.

I think it was yo mamas. haha And likewise.

You said the pressure from two turbos running in parallel is additive. 20psi+20psi=40psi ... additive. Get it? ...and as a reminder, in response I said no way in hell.

Umm you said boost isnt an additive. Which didnt mean what you just said. You should have said that the boost levels that each turbo puts out isnt a sum of each other. Which they are because they are sequential. As a mkiv owner you should know this. Now conventoional twin turbos such as on v8's or v6's arent sequential rendering the boost output the same as one turbos boost level. I think you are a little confused in this area.

Tell ya what sport...you call Toyota and you ask them. Or better yet, why don't you call up anyone that has ever built a bpu++++ Supra and ask them if 40psi can be produced by the stock twins.

I already have which is why I know. I wanted to know because a friend of mine wasnt sure if his ct26's were able to withstand more boost via his boost controller. So we called and talked to a technician. Which is why I told you to call them. Hey if the dealer is on my side along with a 20yr career technician for toyota then I have no problems haha. But the again you are probably a master tech for toyota and claim to own 2 mkiv's and a toyota team with lots of buddies who idolize you. Sounds about right?

The sequential system on the Mkiv Supra works (roughly) as follows:
1) Exhaust gasses from all 6 cylinders spool up one of the two identically-sized turbos...it produces boost all by itself until about 3500rpms.
2) At about 3500 rpms, the exhaust gasses are transitioned to run through both of the identically sized turbos, and they both run simultaneously to produce the total boost and the total airflow through the charge-air system.
In other words, the two identically-sized turbochargers work together to produce the cfm's necessary (for example) for 20psi while the engine spins at (for example) 5500 rpms on a bpu++++ Mkiv Supra.

Ok...

I know EXACTLY what you said, since I have both a seven-angle job (cut on a Serdi machine) AND oversize valves on the 2jz-gte head that's in my Supra. YOU need to brush up on YOUR reading skills because I said no matter WHAT you do to the 2jz-gte head, you won't make 640rwhp using the oem twins alone.

Ok then I never said bigger valves why would you just add that in there? That doesnt make any sense. And I noticed you entioned serdi machine. May I ask what kind?

Why is your math so far off then?

Its not. Again let em use the example of the evo. A 2.0l with a single turbo @ 19psi puts out around 280hp. The 2jz which has a larger displacement and bigger turbo not to mention 2 of them can easily achieve a 600 benchmark.

I would also appreciate it if you could also submit a link for your rhetoric as well. And furthermore you dont need to act like a 5yr old kid. If you say you own a mkiv then i would think you would have enough self respect and maturity to have a formidable conversation or debate. You have around 10 posts I have around 10times that. I have never met someone on this forum who is so defensive as you are. I dont know if its because you have a smallpenis or you are you have small mans syndrome or what. But in all fairness to the forum I would appreciate it if you treated people with respect even though you dont agree with them. If you dont agree with someone then prove your point and do so in a mature and formidable fashion. Is that too much to ask?

I didn't say 20psi is impossible. I said 40psi is impossible with a stock 2jz-gte's oem twins, and I said that that turbo pressure is NOT additive. Just because ONE turbo alone can make 19psi, doesn't mean that two of them together on that same engine can make 38psi. Again, learn to read.

O I can read perfectly fine. Its when people post things that dont make sense is when I have trouble reading. So youre saying 20 psi from a single ct26 isnt possible?

You're also wrong because men that are much more skilled and knowledgeable than you (apparently) are have spent thousands of $ and years of time maxing out what they could achieve with the oem twins before they went to a single turbo to get the results they were looking for. Open your mind and learn something! I really don't give a rat's @ss if you want to live in ignorance, but for the sake of the others on this forum that are trying to learn something, don't try and BS your way out of this. It's not about an ego trip, it's about learning. Ask some questions and I'll give you honest, complete answers. Try to BS and pretend you know what you're talking about and things are only going to get worse for you.

Also, none of what I'm saying is "mumbo jumbo". I've owned an Mkiv Supra since 1994, and I've been deeply involved in the Supra community since 1998. I've built SEVERAL bpu++++ and apu Supras. Have you ever even ridden in one?

Let me educate you on the real world son. In order to gain any sort of respect form people it is earned not given. And when you start acting like and petruding yourself to be an a$$hole is when you are looked upon as one. All this flame talk isnt impressive behind a keyboard and computer screen. I can say anything I want over a freaking screen. Its much easier to lose face and act like a idiot then stay calm and focused and act like normal human beings. Can we please have a meaningful discussion about this or are you going to progress yourself to be an a$$hole? Please choose wisely.