Slant six turbo boost problem

[kb67mopar]

you only have two places to look for the problem you are experiencing.

you either have a gasket or rubber connector which under boost expands until it un-seats or your waste gate is relieving pressure at 8 psi and closes again until it builds to 8 psi. These are the only two variables which could cause your particular issue. I would suggest removing the intake pipe from the turbo and fitting it with an air fitting for use with an air compressor hose, pressurize the system with the engine off and throttle closed to 10 psi and start looking and listening. yeah you will blow some by the throttle but if you hold it closed you should be able to pressurize the system to find your leak. it will either pop off the waste gate or blow past the problem seal.

good luck, its there, just find it.

 

[Moparmatt72]

The bigblocks been built its sitting on a stand just waiting.

Like I said before im giving the little \6 a chance to prove itself to everyone who said this was a dumb idea.
Also to my amasement most people think its cool, it was a big hit in carlisle this year!

It is a cool idea, there a few on the turbo forums under the mopar section that are building these 6, the slant 6 was and is sill a strong motor.

 

[Moparmatt72]

you only have two places to look for the problem you are experiencing.

you either have a gasket or rubber connector which under boost expands until it un-seats or your waste gate is relieving pressure at 8 psi and closes again until it builds to 8 psi. These are the only two variables which could cause your particular issue. I would suggest removing the intake pipe from the turbo and fitting it with an air fitting for use with an air compressor hose, pressurize the system with the engine off and throttle closed to 10 psi and start looking and listening. yeah you will blow some by the throttle but if you hold it closed you should be able to pressurize the system to find your leak. it will either pop off the waste gate or blow past the problem seal.

good luck, its there, just find it.

This is what I said to do too lol

 

[Cranky]

I'm not a big fan of normally aspirated /6's but I am a fan of turbo 6's but what scares me are the rods. They are kinda long and plenty skinny and of all the stock engines I've seen with windowed blocks, the /6 wins in that category and I find that a bit odd as they don't/can't turn a lot of rpm in stock form. The cam and valves are just so small for a long stroke engine.
Anyways, I have a turbo Dodge pickup and doing the leak test like what has been mentioned is the first thing most recommend doing when having issues like you're having. Get it fixed and air that thing out!!

 

[Altered64]

Ok after freezing my *** off outside all night i can finally say, I found the problem and maby some frostbite.
Did the leak tests and they checked out fine.
So I used some wire to jam the wastegate arm closed and went for another test run.
OMG! the boost shot up to about 20 befor I could even get off the gas and this thing was MOOVING!
Now all I have to do is replace the actuator and it should be fine.
I knew I was missing something simple like that.

Thanks to everyone for all ur input.

 

[Moparmatt72]

Glad you got it fixed.:headbang:
Just my .02 again when you build your big block go with a externally gated turbo, way better control over boost. Plus the dump to atmostsphere sounds great like secondaries on a carb. Have fun with the 6.

 

[racedodge]

Ok after freezing my *** off outside all night i can finally say, I found the problem and maby some frostbite.
Did the leak tests and they checked out fine.
So I used some wire to jam the wastegate arm closed and went for another test run.
OMG! the boost shot up to about 20 befor I could even get off the gas and this thing was MOOVING!
Now all I have to do is replace the actuator and it should be fine.
I knew I was missing something simple like that.

Thanks to everyone for all ur input.

awesome, i want to see a burnout video!!!!

 

[HEMI-ITIS]

The bigblocks been built its sitting on a stand just waiting.

Like I said before im giving the little \6 a chance to prove itself to everyone who said this was a dumb idea.
Also to my amasement most people think its cool, it was a big hit in carlisle this year!

Yes,it was a BIG HIT at Carlisle!!!

 

[Altered64]

My last burnout is somewhere in this video.
The announcer asked me if this car could even spin tires!
I wanted to blow the tires but the officals stopped me after just one of the belts snapped, what a rip off.
http://www.youtube.com/watch?v=RQN9r8PBIcs

 

[HEMI-ITIS]

Cant get the pics on here for some reason, but they are in this gallery

http://www.forbbodiesonly.com/moparforum/vbpicgallery.php?do=view&g=1190

Those pic's look a little funky,try theses:toothy4:

These are from a few years ago at the local cruse in Oyster Bay:icon_bigsmurf: