Richter12x2

iTrader: (1)

Big tube in and big tube out are easy enough, but there are two smaller ports, also - where do they go?

Yes, I searched.

NZConvertible

One is for the nipple on the rear of the UIM that feeds the air supply valve under it. The other is for the accelerated warmup solenoid valve (aka air bypass solenoid valve) bolted to the top of the UIM.

Richter12x2

iTrader: (1)

Awesome, thanks! So in the interest of getting the thing started, I can just cap those things off, and work on adding back the drivability piece of it later then?

Whizbang

i always wondered what those things were to...

veedubbed

I removed my AWS, and then just capped the nipples on the intercooler and the remaining nipple right above the BAC.

FRFC3S

iTrader: (24)

What's the Air supply valve than? Is that the reallly tiny nipple on the bottom right of the intercooler near the throttle body?

Richter12x2

iTrader: (1)

Yeah I didn't find any info when I searched for ports, but I have to admit, I was afraid to search for "Nipples" on rx7club.

NZConvertible

The engine will run fine without them. If you have power steering I'd get the ASV hooked up as this increases idle speed when you turn the wheel so the pump's load doesn't cause the engine to stumble or stall. And you couldn't pay me to have AWS on my engine...

It's on the back of the UIM like I said above...

Richter12x2

iTrader: (1)

I actually don't recall or may not have ever learned what AWS is. The only thing that comes to mind is All-wheel steering, but I know that's not it. It's a little daunting, I've never worked on a turbo car before, and here I am building one from a box of parts, a lot of research, and a rough understanding of what everything does.

My next task is researching where the two ports that come off the hardpipe between the turbo and the intercooler go, and I've got one vacuum line coming off the turbo yet to figure out. Thanks again for your help!

FRFC3S

iTrader: (24)

From the Turbo to the Intercooler, the hard plastic pipe that doesn't connect to the IC connects to the stock blowoff valve. It routes the blown off air back to the intake before the MAP sensor I believe. Don't quote me on this.

AWS: Accelerated Warmup System? I guarentee you it's in the FAQ if that isn't it.

NZConvertible

AWS = accelerated warm-up system, the 3000rpm idle during cold starts.

The one facing backwards goes to the BAC valve, the one facing outwards is for the BOV.

Wastegate actuator.

You really need to be studying the FSM. All this stuff is shown in there.

Richter12x2

iTrader: (1)

Ah, gotcha - I remember now - I guess I just never called it that. :P That's the bit that uses thermowax to bypass the throttle butterflies, bringing your revs up. I gotcha.

Richter12x2

iTrader: (1)

I've been reading the pages on Engine, Ignition, and Fuel systems, but there are some things it just doesn't show clearly. I finally found a good picture of the blowoff valve connecting to the one, and then routing back into the air intake AFTER the MAF, right? If it went BEFORE the MAF then it would be the same as having an open-air blowoff valve, and your mix would be off.

I never found a picture of the other tube though. But if it feeds the AWS, then I just to find a monster plug and cap it off to get the thing started, then add it back later if cold starting really becomes an issue.

We've got an RX7 club meeting tonight, so I'll be able to really poke and prod around and see where everything goes.

The FSM is good stuff, but a lot of the info assumes that you had a fully functional TII engine to start with.

NZConvertible

No, that's a totally different system. Like I already said, it's a solenoid valve mounted on top of the UIM. I said nothing about the thermowax, which is on the TB and doesn't bypass anything...

gear_grinder

iTrader: (4)

okay, i might have missed it but, the thing on the top of the UIM is for the AWS, what is the other tube for that goes to the second nipple?

NZConvertible

Yeah, you missed it...

Richter12x2

iTrader: (1)

Sweet, thanks for your help! Now if I can just find what I did with that really long starter bolt and the bolt with the spacer that goes to the alternator, I'll be good to go!