BOOST LEAK!!!!!
- Thread starter 4DRHTRD
- Start date
EcoBrick Bob
New member
I have a Mirror Machine to go with your Smoke Machine... For sale cheap...
I also have a receipt for a Flex plate replacement, that every Flex owner needs.
I also have a receipt for a Flex plate replacement, that every Flex owner needs.
EcoBrick Bob
New member
Maybe you have tried this, but how about testing with soap suds like they do tires and gas lines etc.
It's only at about 16psi that I'm losing pressure, I need to pressurize the system to find the leak.
Boost Leak Testing 202: Hair Spray 1080HD
Boost Leak Testing 202: Hair Spray 1080HD
crash712us
New member
Good point Darrell, forgot about that. And I know if I am coming from a stock tune back to tune again initially my boost is much higher, can see 18-20psi on a half throttle romp down the street. But this is only good for about 3 romps, before the ECM reins boost back in.
Ok can't got to the inlet of the back turbo without dropping the down pipe. I removed the rest of the hot side pipes and hair sprayed them. I'm going to see how much boost I have then if lower I will clear the ecu and try again. If I have higher boost then I'll be begging Shawn for a tune asap.
Sent from my phone with lots of misspelled words...
Sent from my phone with lots of misspelled words...
OK, 99.9% sure it's a boost leak.
I returned the car to stock and then retuned the car, I hit 21psi for a milisecond then nothing over 17psi.
I also went home and cleared the battery and I can no longer see over 17 psi in any gear.
Need to drop the car off and get the hot pipes fabricated and also get the new fuel pump assembly installed.
YAY more work!
Just in case I shot an email to livernois, I have a mycal, I asked them if they want to take a crack at tuning my car for the track. We'll see what they say.
I returned the car to stock and then retuned the car, I hit 21psi for a milisecond then nothing over 17psi.
I also went home and cleared the battery and I can no longer see over 17 psi in any gear.
Need to drop the car off and get the hot pipes fabricated and also get the new fuel pump assembly installed.
YAY more work!
Just in case I shot an email to livernois, I have a mycal, I asked them if they want to take a crack at tuning my car for the track. We'll see what they say.
SHOdded said:
That wouldn't cause a boost leak. It would cause an oil leak, most likely on the exhaust side.
On a side note, is there a possibility the wastegate aren't holding shut? If the car is creating too much back pressure and the combination of the springs and boost port (which I assume these must be using) can't overcome the BP, it will blow the gates open and there goes your boost... O0
Sent from my mobile gizmo
I realize this is a bit old. But did anyone ever build a good pressure test kit for leak testing? I’m dying to pressure test my system. I make it a point to test my cars for boost leaks periodically. And I feel like it’s not reall making the power that it could/should. In your case I would want to rule out a boost leak before doing anything else. It’s a very easy way to rule out the more common issue in a turbo car. I’ve had a boost leak tester setup for every turbo car I’ve owned. The difference between leaks and no leaks is amazing. I’m surprised that I haven’t seen anyone build a tester.
askoncemore
New member
Did you find the leak?