420a Manifold HELP!!!

[Jeff99GS]

Okay I need some HELP....I am Turboing my 420a and I think I have the wrong manifold or something, My wastegate is sitting sideways and the turbo is hitting my fans a little. Can Any one tell if thats the wrong manifold, I attached a pic. The flange holes line up perfect but I think the flange for the turbo is sticking out to far. and the wastegate is hitting my hood?????????? should I just get a Cast Manifold?

 

[95TalonOwner]

You might need to switch to slimline fans.

 

[VelocitàPaola]

Who made the manifold?

 

[Jeff99GS]

Of course I made the mistake of buying the Manifold off E-bay I'm Just gunna have to cut the little pipe down and weld the flange right to the manifold

 

[Jeff99GS]

Ok I have another question for Paul....remember how you gave me that diagram on how to hook up the manual boost controller? well you show the vacum line going to the side of the wastegate and the to the compressor housing. the turbo I have doesn't have a hole or a fitting in it to attach that to. Someone told me to just hook it it vacum. would that work?

PS... I see 2 sensors on the back of my block, can I use either one for the oil supply line? its hard to get to the one....does anyone know what size socket that is to take off the oil sensor

 

[VelocitàPaola]

NO! The sensor on the right is the knock sensor... it doesn't do the same thing. You need to remove the sensor on the left (the oil pressure sending unit). It takes a special 1 1/16" long socket. I got mine from a MAC tool truck, but I've seen them at Autozone and Advance. If you break the plastic part off the sender, you can just use a regular 1 1/16" socket.

You can attach your wastegate line directly to a manifold vacuum source (in fact, this is how I have mine, for now). It'll basically work the same, but I wouldn't keep it like that for long for two reasons: manifold vac/boost signals create less responsive wastegate action; it's not a very good idea to put your wastegate diaphragm under a lot of vacuum - just boost, please.

You can do this though: (provided your IC pipes are steel/aluminized steel) go to Home Depot/Lowe's and get a small 1/4" steel pipe coupler and a 1/4" NPT-barb brass fitting from the plumbing department. Drill a small hole (1/4") in your IC piping close to the turbo. Then, use a hacksaw to cut the coupler in half, and weld (or have welded) the piece of coupler to the IC piping. Now you can thread that brass fitting into the IC pipe (with Teflon paste, of course), and have a much more accurate/responsive boost source.

If your IC pipes are aluminum, then you're SOL. Look for some aluminum fittings and a good welder, I suppose...

 

[Jeff99GS]

OK I drilled and tapped the output of the turbo and installed a 1/4" barb....now should I attach the boost controller to that and the other end to the wastegate????

 

[VelocitàPaola]

OK I drilled and tapped the output of the turbo and installed a 1/4" barb....now should I attach the boost controller to that and the other end to the wastegate????

Yes.

 

[Jeff99GS]

hey paul i have this wierd looking Tee that came with the boost controller it only lets air flow through 2 side and the 3 nipple is blocked off....what the hell is that ??? can I just run the hose right off the boost controller straight into the turbo and the wastegate?? does it matter which way the controller goes? like what nipple goes to what port??

 

[VelocitàPaola]

Yes, there is a specific way to install an MBC. Look at my diagram again... that's exactly how to hook up a ball/spring type MBC. If you have a bleeder type MBC, the install will be a little different.

 

[Jeff99GS]

I got everything installed but I am getting no boost...all my exhaust flow is going out the wastegate. I think its because I have the boost controller hooked to the output of the turbo....I mean if the wasgate is open the turbo wont spool, and with out the turbo spooling there is no pressure coming off that fitting in my turbo....should I just hook the boost controller to a manifold vacum source?? or is that bad.... does anyone know what this little TEE adapter thing is for with my wastegate??? It says "POINT TO WASTEGATE ACUATOR" do I need that piece or is that for and internal wastegate?

 

[420aonboost]

get a cast its wayyyyy better

 

[4UH8ERS]

get a cast its wayyyyy better

wow that was a pointless comment. kinda like this one.