Ok...so I bought one of those 10 dollar manual boost controllers for my rotary corolla and I have no idea how to hook it up. I have a buddy using the same one in his S13, but the vacuum lines are wayyyy different on a rotary. So I labeled everything in the pics so you guys can guide me and help me out.

A-is part of the split off line that goes to the boost sensor thing(sorry...don't know the technical term)

B-is the T part of that and goes to the blow off valve

C-is the other part of the T and goes into the intake manifold

D-is the vacuum line that goes from the blow off valve piping to the boost gauge

So where does it go? And does anyone have an idea of how much you can boost on a stock '91 13B?

[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/?action=view&current=rotaryengine005.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/rotaryengine005.jpg" border="0" alt="pic of boost vacuum lines"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/?action=view&current=rotaryengine006.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/rotaryengine006.jpg" border="0" alt="pic of boost vacuum lines"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/?action=view&current=rotaryengine007.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/rotaryengine007.jpg" border="0" alt="pic of boost vacuum lines"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/?action=view&current=rotaryengine008.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/rotaryengine008.jpg" border="0" alt="rotary corolla"></a>[/IMG]


AND THIS IS WHAT I HAVE TO WORK WITH
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/?action=view&current=BC-T1-R_01.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/rotary%20eng/BC-T1-R_01.jpg" border="0" alt="pic 1"></a>[/IMG]

THANKS FOR YOUR HELP GUYS/GALS(IF THERE ARE ANY)

 

The answer is E) None of the above!!!!

 

Rotary Corolla??? I want more pics!

 

There is NO difference between installing an MBC on a 240sx and an FC. Internally wastegated turbos all work the same. On the factory s4 turbo there is a vacuum line running straight from the compressor outlet nipple to the wastegate actuator. On the s5 cars there is a boost control solenoid in-line--but that's only on actual s5 turbos on actual s5 T2 cars. There is no boost control solenoid on the s4 harness. The pressure source from the compressor outlet goes into one end of the MBC and the outlet of the MBC goes to the wastegate.

I have seen that ebay MBC. Double check this, but I think the pressure source from the compressor housing goes to the nipple on the boost controller with the arrow. Then you run a line from the other nipple on the MBC to the wastegate actuator. If I'm wrong then I have the vacuum nipples on the MBC reversed, but it's the same idea. You don't need the included tee at all.

 

Yeah, use the hose going between the compressor housing and the wastegate actuator.

 

Cool...thanks sooo much guys. I'll probably try it out tomorrow. So any idea on how many psi I could boost safely???

 

Here's some more pics guys...
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/?action=view&current=car1.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/car1.jpg" border="0" alt="Photobucket"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/?action=view&current=car2.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/car2.jpg" border="0" alt="Photobucket"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/?action=view&current=cockpit.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/cockpit.jpg" border="0" alt="Photobucket"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/?action=view&current=dashassembly.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/dashassembly.jpg" border="0" alt="Photobucket"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/?action=view&current=fanassembly3.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/fanassembly3.jpg" border="0" alt="Photobucket"></a>[/IMG]
[IMG]<a href="http://s297.photobucket.com/albums/mm220/mitchkilmer/?action=view&current=radandoilcooler.jpg" target="_blank"><img src="http://i297.photobucket.com/albums/mm220/mitchkilmer/radandoilcooler.jpg" border="0" alt="Photobucket"></a>[/IMG]

 

First of all BADASS!

I was a few hours from getting a 20V swapped coupe before I ended up w/ my FC. I've been wanting to build a 13bt 86 for a while.

As for "how much boost" that depends on a couple of things....

What are you using to control it? if its the stock computer you'll be limited to 8 psi w/o an FCD.

What (if any) is your intercooler setup? I'd love to see pics of that air-to-water unit you have stashed in the wheel well

How much fuel do you have? I've seen plenty of people run 10 psi on the stock injectors (some w/ as little as an FCD and a prayer) but I'd consider that the safe limit and I'd definitely make sure my injectors were flowing all 550 cc's (read: have them cleaned)

 

lol...Its says "high performance" on it. It kinda looks like the turbosmart boost controller. Im sure the arrow is suppost to go to the wastegate actuator. and the other one to your vacuum source.


by the way, "A" is your map sensor.

 

You better be really careful before you start messing with a setup you don't have full knowledge of.

I get the feeling that you bought the car with the swap already done. Do you know how the swap was done? What fuel system, injectors, ECU, intercooler, etc?

 

Wow, that is neat.

 

Do you have any kind of fuel computer?

 

my rule is this:

don't touch the boost controller until you are mentally and financially ready to blow your motor.

 

I had the swap done. It's a completely stock motor. So I guess you could say that there really is no "setup" on the car. Just a stock ECU with all stock parts. When it was put in, or before it was put in, the motor/tranny were rebuilt so it's a fresh motor. I had a 4ag in it before, but every event I went to, I was getting 4th place. Every *$ckin time. I knew I needed more hp, So instead of going with the 20 valve engine, I went with this.

But what I don't get is...why do I have to up the fuel for just 3 more psi of boost? Just curious.

 

You don't.

However, manual boost controllers are pretty hit and miss, and you could easily spike past +3 psi in the process of adjusting it. Now that won't really matter if you're running the stock ecu because fuel cut occurs at 8 psi anyway.

Also, do you have an intercooler? hot air makes detonation much more likely and will greatly reduce the amount of "safe" boost you can run.

if you want to up the boost, look into an Rtek 1.5, 1.7, maybe even a 2.0/2.1. This will eliminate fuel cut and control your injectors allowing you to run a little more boost safely.

Is your waste gate ported? if not you shouldn't put that boost controller anywhere near your engine bay. With a free flowing exhaust you'll hit boost cut w/o it.

summary:
1. get IC
2. port wg
3. clean/flowtest injectors
4. Rtek
5. boost controler

 

cool...thanks for the info guys. I appreciate it.

I don't know why I thought that you could simply turn the boost up in order to gain more horse power. I guess my source left out a few details.lol. And that is pretty odd, that you can only boost 8psi before the motor stops detonating. You'd think they'd give you more room to work with.haha

Doing some Gymkhana this Saturday at Willow Springs Raceway...anyone else going?