Dumped

[FluidMotorUnion]

No, nothing’s slammed to the ground today. We’re talking about actual dumping.

Minds out of the gutters, people. We’re talking about a wastegate dump tube. For those not in the know, the wastegate is what controls the pressure of the air going through the turbocharger. When boost hits a certain level, the wastegate opens to allow the excess pressure to vent out. Sometimes, they’re recirculated into the exhaust system to prevent excessive noise and the subsequent roadside visits from Johnny Law. Othertimes, the dump tube (the tube that runs off the wastegate) can be vented directly into the atmosphere. The noise from this route is definitely louder than recirculating it, but it makes for an impressive sound if you’re not expecting it. And not many people will be expecting it from a seemingly NA 318i. Tom’s been working on this one today, and it’s coming out great.

http://www.fluidmotorunion.com/wp-content/uploads/2011/06/dumped1.jpg

All you need to start is some stainless steel tubing…

http://www.fluidmotorunion.com/wp-content/uploads/2011/06/dumped2.jpg

…And a wastegate…

http://www.fluidmotorunion.com/wp-content/uploads/2011/06/dumped3.jpg

…And then a little welding magic will create this:

http://www.fluidmotorunion.com/wp-content/uploads/2011/06/dumped4.jpg

Featuring — as always — welds that will make the masses weep in awe.

http://www.fluidmotorunion.com/wp-content/uploads/2011/06/dumped5.jpg
http://www.fluidmotorunion.com/wp-content/uploads/2011/06/dumped6.jpg
http://www.fluidmotorunion.com/wp-content/uploads/2011/06/dumped7.jpg

All in all, the 318 build is hauling along. Tuning should commence within a week or so!

[Average_Jerk]

this 318 looks like its getting some killer work done



also, when I clicked on the thread I thought its title was "moped". I couldnt even imagine what kind of crazy work was being done lol

[Topazkd]

Wow! that looks like top notch work!!!! I will be contacing you guys soon! Snail + e46 = win :D

[FluidMotorUnion]

this 318 looks like its getting some killer work done

Yeah...

This 318's been here for three years. Kind of a "tend to it when you can" project that finally became a "now I've got the cash, let's finish this" sort of thing. The shop that had it before us built and arranged almost everything, then he came to us for a Haltech install. It took us most of that time figuring out how to get it to start, as the combination of coilpacks and this Haltech was being a massive PITA.

But now we're going about fixing everything that the other shop fucked up. I try not to mention this part in the blog, as it's pretty classless to shit-talk other places. But they didn't do a good job; mounted the turbo so low that it couldnt drain oil, made the wastegate dump tube like 12 feet long, and did the single-handed worst MIG exhaust job I've ever seen.

But enough of that, lest I get into trouble.

Wow! that looks like top notch work!!!! I will be contacing you guys soon! Snail + e46 = win :D

'Tis!

[Average_Jerk]

I hear the same thing about Haltech from a lot of people. Especially from back when I was building an RX7

[FluidMotorUnion]

I hear the same thing about Haltech from a lot of people. Especially from back when I was building an RX7

Yeah, and OJ's done, like, the highest level of Haltech training you can do, and even then, still a frustrating thing.

At least now I know the most intense engine management happening to my Si will be a Hondata. A different ECU or piggyback system looks like a nightmare's worth of work. So many wires.

[Average_Jerk]

Yeah, and OJ's done, like, the highest level of Haltech training you can do, and even then, still a frustrating thing.

At least now I know the most intense engine management happening to my Si will be a Hondata. A different ECU or piggyback system looks like a nightmare's worth of work. So many wires.
I have a friend in FL thats a master programmer (or some shit) with both Crome and Neptune. he seems to really like them over Hondata

[FluidMotorUnion]

I have a friend in FL thats a master programmer (or some shit) with both Crome and Neptune. he seems to really like them over Hondata

Hmmmm...

I was just going to go with the Flashpro, as it seems like the de facto standard for 8th Gen Civic tuning across the entire internet. Although it's not like I'd be doing my tuning myself (but now that I only work one job, I guess I could spend weekends researching...)

[Steve]

I'm confused as to where this is going on the car, that looks like a piece of exhaust from a downpipe/midsection...

[Average_Jerk]

I'm confused as to where this is going on the car, that looks like a piece of exhaust from a downpipe/midsection...
its an atmospheric dump

[Steve]

its an atmospheric dump

I understand that, but where is the wastegate being placed (distance-wise) in regards to the turbo/manifold?

[Average_Jerk]

I understand that, but where is the wastegate being placed (distance-wise) in regards to the turbo/manifold?
here is a pic of some random turbo manifold. one flange is for the turbo and one for the wastegate

http://www.dcr62.net/Car%20Pics/E30%20M3/M3%20Rebuild/Turbo%20Manifold%201.jpg

[skrapez]

This thread makes me have to poop...

[Masonbarnard]

dumping into downpipe looses 5-10whp doesnt it?

[FluidMotorUnion]

I understand that, but where is the wastegate being placed (distance-wise) in regards to the turbo/manifold?

Our placement is very similar to the one that Dave outlined. I can get more in-depth pictures to show the location if you want.

This thread makes me have to poop...

Good. Then I've done my job.

dumping into downpipe looses 5-10whp doesnt it?

Yeah, but sound at the expense of a negligible amount of power is a worthy trade-off.

[skrapez]

<3

[Steve]

Ah, it looked like the WG was being put far away from the collector. That can lead to some serious boost creep if you arent careful.

[FluidMotorUnion]

Ah, it looked like the WG was being put far away from the collector. That can lead to some serious boost creep if you arent careful.

The whole reason for the new dump tube in the first place was due to his original WG placement. It did have some serious boost creep. It should be good now, but we'll find out once fab is done and we get it crankin'.

[Steve]

Maybe a dual WG setup :eyebrows