LastResort

It's not a question of perspective it's a question of physics, engineering and data.

snobdds

Well of course it is...

Where is that turbo rpm data of yours, with and without the hole? Or should we just look at vacuum and leakage?

LastResort

You haven't provided any data, only conjecture based on poor understanding of the systems involved. Dozens(hundreds?) of people have had success with an increase in performance, which constitutes data. We know there is no vacuum in the intercooler, that's the result of concentrated engineering efforts. And the hole is a known leak with a known effect, which is the physics. Hence my original comment: you don't understand any of this works.

vozaday

While Geoff is correct a boost leak isn't necessarily a good idea. But he also states that the PCV itself creates too large of a boost leak. Please remember that he is selling a product, which with the new bov on the elbow does solve the issue, and that is why he pushes the statement. Most people don't want to buy an aftermarket intercooler to fix the problem. So while he is correct that a system should not have a leak at all, I would rather take the leak than attempt to pass someone and have the shudder.

And as an end all question I ask you this... How many turbos do you see blowing? Very very few, so in the end this is a non-issue.

vozaday

I am very happy to see that you are still on the forum and helping people with this problem and understanding how the system works. Thank you.

engineermike

Already posted. On the stock truck, the turbo spins approximately 160,000 rpm at max rpm max boost. With the 1/16" hole, it goes to 160,200 rpm. These turbos can safely spin 190,000 rpm and higher. Spinning 0.1% faster will do less damage than passing through a critical, which happens very often.

engineermike

Honestly, I've moved on to a supercharged 5.0, but I still like the physics and thermo side of it.

papa tiger

So drill the tiny hole with the confidence you can get around a 18 wheeler ******* up a 4500' high mountain side while your pulling your 68 on a trailer. Lol

vozaday

It's a 71

snobdds

Well, there we have it...