For any amount of power a T3 Super 60 can put out a Decompresson plate will work fine. At 22PSI they only push out around 320WHP, and thats with great tuning and at the maximum output of their efficiency. And I doubt he wants to run anything higher than 12PSI since this is his first project.

Granted, its not the best way to go, and can create problems, and I would always recommend the Tigerlillies for $350. However, it costs two times that or more to pay someone to install the pistons for you if you don't know what your doing. And trust me, you don't want to mess with pistons if you don't know what your doing.
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Double_A brought up a great way of creating a leak that would make no boost. I would still tow it in if you can.

 

Its still pointless cause you could run 12psi without it. Its not just the compression its the fact that everything is stonger.

 

order roadside assistance through your cell phone company (like $3 a month..), then the next day call say your stranded and need a tow. now you just got a $3 tow, and didn't have to mess around with anything :-D

 

12PSI on 10.3:1...? LOL, even tuned correctly thats putting horrible strain on the engine, and running 8.5:1 will actually produce more power than 10.3:1 at the same PSI, and will increase the life of the engine tenfold. You have no comprehension of what 12PSI does internally.

Dimi's engine is @ 109,000, with new pistons, rings, bearings, etc. in it a few thousand miles ago. A brand new stock piston even at 10+ PSI on a T3 will last a few years if not seriously abused and tuned correctly with the compression lowered. If he keeps an eye on A/F and doesn't let things overheat it should be fine.

He has been looking for cheap options to go with, and frankly I don't see much of a difference between a cast/forged piston and a decompression plate at anything below 15PSI on an average T3.

 

I changed only piston rings. And this is my first project. So I'm planing to start from 5 psi then increase it to 8. I will use custom decompression plate.

Then when I'll rebuild the engine I put there forged pistons and run higher boost.

 

^^ Good plan... what compression are you going for? 8.5:1 may be too much of a drop for 8PSI... maybe around 9.2:1 or so would be better.

 

^^^ I thought to drop CR to 8,5:1.
I'm planing to run on 95 octan fuel (I think Ukrainian 95 is like yours 92). So I want to be on safe side.

How will car run at 2000-3000 RPM with 8,5:1 compression ratio?

 

Tim was running 12psi on stock internals.



Just cause he lowes the compression with a plate or what ever its not gona make his stock pistons and rods any stronger. If hes gona wana run that much safely he needs to have stronger internals not just a plate.



Exactly, but at 5psi decompression plate really wouldnt be needed.

 

That may work in Wisconsin, but I doubt they have the same service in the Ukraine

 

Car will be hell to drive at that low of compression with the amount of torque the stock Tib creates @ 2000RPM-2800RPM where the car will not be making much of any boost. Keeping it above 2500RPM all the time by downshifting would be a great idea... thats how I have to drive my GSX.
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We're talking longevity here... I could run 35PSI on my GSX if I wanted to, but it wouldn't last very long...


Actually 17PSI... do you recommend for everyone to do that?


Your talking yourself in circles. With your thinking, the internals are positvely fine and hold up to Tim's abuse at 12PSI plus. Yet then you say a major reason of getting pistons over a decompression plate is that the internals are weak and can't hold up to large amounts of PSI. You made yourself look silly, and I'm done going off topic.