Top mount turbo setups

[JMEngineer]

I have a pair of MV-S's here that both have the ewater ports on them

[Speedie6]

Originally Posted by bmylez MV-S doesn't come with water ports that I know of. I have one sitting in my garage...

Yeah, it does, at least the V2 version does. Maybe the V1 didn't.

[bmylez]

Yeah, I got a V1.

Notice how I don't have ports on either side of the 2 center ports. I only have 3 ports on the bottom for boost reference.

[Speedie6]

Originally Posted by bmylez Yeah, I got a V1. Notice how I don't have ports on either side of the 2 center ports. I only have 3 ports on the bottom for boost reference.

Okay, V1 no water, V2 has water. But, I was told that most people don't bother with the water cooling.

[aviator79]

Originally Posted by djuosnteisn Agreed, modern efi and ecu capabilities have come a long way, and do a much better job at regulating the fueling, helping reduce overly lean afr's and nox emissions etc. Pair that with ecu controlled EGR, and you get a very low emission motor for 95% of your driving. Personally, i don't care one way or the other. If you want a cat, excellent. If not, that's fine. I choose not to have one, cause IMO there is a reduction in power. The turbine operates at a certain pressure ratio to spin the turbo. Because of this, any back pressure in the turbo back will essentially be multiplied across the turbine, and result in higher pressure in the exhaust manifold. The goal for maximum VE is to have minimum exh pressure in the manifold. Here's a quicky example (exaggerated to show the concept): Suppose your turbine PR is 2:1. And you have 10 psi of back pressure in the TBE. That means you have 20 psi in the exhaust manifold (2 x 10). Now lets say you fit the car with an upgraded exhaust, and perhaps remove a cat, or upgrade to a high flow version. And now your back pressure in the TBE drops to 5psi... Your new exh manifold pressure dropped all the way down to 10psi (2 x 5). Look at that... a 5 psi reduction in TBE resulted in a 10 psi reduction in the exh mani. That's because the turbine's pressure ratio is essentially a multiplier. And it's also the reason why on turbo cars..... bigger really is better. Ideally you'd have no exhaust, and just let the turbine dump to atmosphere lol.... or even better, have it dump to a vacuum.

But if im going to a dump pipe will it really matter?
I have to have my car to emissions this year supposedly, and at the moment I know I would not pass. I can barely breath while driving the car cause I have so many exhaust leaks. Just put the OEM catback back on and its not fitting due to rear end accident...need to bend more with acetylene torch.
Selling my cpe-dual. Just need to get the pics up and dig it out from the 3 feet of snow it is under.

[Speedie6]

Originally Posted by aviator79 But if im going to a dump pipe will it really matter?

Well, indeed, I presume you would attach the dump tube past the cat, so, indeed, the dumped exhaust will not be catted. I don't honestly know the percentage of the exhaust that goes through the turbo verses through the dump. Of course it must vary depending on the car, the turbo, and stuff like that. I don't know what percentage overall to expect. But, given that we most people are using 38 mm for the dump tube, that tells me that the majority goes through the turbo. And dumping is only when you are WOT. So, presumably, over the life of the car, even with a dump tube, most of your exhaust is going through the cat. If you have one, that is.

[socks]

to remain legal in most states, you'd even have to recirculate the dump tube before the cat.

thats how i had it when i had mine recirculated.

[Speedie6]

Originally Posted by socks to remain legal in most states, you'd even have to recirculate the dump tube before the cat. thats how i had it when i had mine recirculated.

Yes, I should've stated that. I haven't heard avaitor's reason for wanting a cat, whether it be personal choice or that he had concerns about passing inspection.

I don't know how many inspectors would notice that or not. Or what states might check. But, indeed, I'm pretty sure it would be illegal in most, maybe all states, to have the dump past the cat.

I still haven't got my car back. Honestly, I don't even know how they routed my dump tube. I'd bet they ran it past the cat, but, I don't know. I think most inpectors won't check, but, I guess I may need to be careful.

[djuosnteisn]

Originally Posted by madvillain Dustin I won't lie man it'd bug the shit out of me to have two different colored wastegate caps.

lol. Hopefully joel's right and they'll both end up being orange or some shit.


On my last setup, i had a bov, ewg, & mbc all the same color. After some miles though... i ended up with an orange ewg, a pink bov... and a still red MBC.

At that point, i figured function over form. And considering the exterior of my car is pretty much stock (save for the enormous fmic), my car certainly falls into the sleeper category instead of the show car category lol.

[spnkr21]

Sleeper ftw. Once the wastegateS<= open though... End of story.

[aviator79]

Well I wanted a cat to pass inspections, assuming I would not without a cat. I dont even know if I would pass with the cat I have on now with how bad the exhaust smells (assuming I fixed all the leaks).
My idea had been to dump to atmosphere, so I would have stock catback to be nice and quiet while cruising, but dump to atmosphere when WOT. All they do in CT is emissions cause the inspections were so corrupt they shut down. So you dont need brakes in CT, but your car better not pollute.

[bmylez]

That's awesome...the inspections sucked, so instead of fixing the problem, they ignored it, haha.

[Speedie6]

Originally Posted by aviator79 All they do in CT is emissions

Do they do sniff test, or just check the ECU? Do you have any CELs? I don't know CT procedures, but, if you don't have any CELs, I think you could be good to go.

[MS3-a(sore)ASS-rex]

It should just be an OBD2 plug-in test. So, as long as you have all monitors ready and no CEL's you'll be fine. I'm almost positive this the rule for all vehicles that were produced after a certain year, around 2006 or so, but don't quote me on that.

DJ, moar pics please!! Folks can't seem to stay on topic lol.

[djuosnteisn]

I'll try to post some up tomorrow.

[xdm88]

Originally Posted by MS3-a(sore)ASS-rex DJ, moar pics please!!

^ this!

ha i need some motivation to not spend my moneyz on stupid stuff and save for your set up

[MSP611]

So where are u guys routing ur dump tubes?

[MS3-a(sore)ASS-rex]

I'm probably going to have one of my buddie. @ JMfab re-circ them back to the DP for the ultimate sleeper setup

[rigor]

were i routed mine lol

[MSP611]

Thts a pretty shitty pic^ lol but hey it kinda wrks

[madvillain]

thaz where mine is!

[turd burglar]

hey mad, when you gonna be back to work on teh ecu box?

[madvillain]

fuck mayne, who knows. its a very, very busy semester for me, but I'll let you know.

try to track down another bracket - that like bolts down between the tranny mount and battery box - to have something welded on to hold the ECU down. Thats what I was going to do. Nigor rigor could just nigor rigor something up for you.

and if you find one of those trays, holla, I want one.

[Speedie6]

Originally Posted by madvillain try to track down another bracket - that like bolts down between the tranny mount and battery box - to have something welded on to hold the ECU down. Thats what I was going to do. Nigor rigor could just nigor rigor something up for you.

What are we talking about? Purpose? Some have bitched about off topic, so, if another thread has info, just link it I guess.

[turd burglar]

so this is gonna be a random as all shit question, but can someone take some measurements of our ecu. the full assembly thats mounted to the battery box, length and width at least. got an idea cookin i think

[kilik2]

turd is your ecu further than a stone's throw away? That is something you could easily do yourself, lol.

[turd burglar]

me was stuck at work from 630pm to 630am lol so couldnt check

[JMEngineer]

Originally Posted by MSP611 So where are u guys routing ur dump tubes?

I'll be running a separate tube for each gate. One out each side of the car behind the front tires so all the evos and stis know why I'm passing them so easily

[xdm88]

^ that is so nasty! me wantz to replay your vidz when you post em up with that set up

[superskaterxes]

Originally Posted by JMEngineer I'll be running a separate tube for each gate. One out each side of the car behind the front tires so all the evos and stis know why I'm passing them so easily

lol @ 1.5" side pipes on JDM cars haha

[Scynfewl]

Originally Posted by integrrac

I'm sorry, as a Mazda guy through and through i still need to say that the arrest me colored Civic is LEGIT. It made me giggle.

[superskaterxes]

why does it have slicks on the back!?!?!

[bmylez]

Well...the same reason it has big ass twinz. I don't think 1.6L of vtek fury are pushing those.

[kmac]

I saw a top mount kit on eBay being sold for the speed 6,being sold by streetunit. I didn't see it on their site ,is this something new and why didn't I see it on their site? On eBay it says made by cp, has anyone else seen this ? Just curious if anyone knew about it, because I thought this was the only option.

[turd burglar]

might be sneakyp86's, i know he was gonna get rid of his cp kit at 1 point. sick piece of work for sure

[djuosnteisn]

Originally Posted by kmac I saw a top mount kit on eBay being sold for the speed 6,being sold by streetunit. I didn't see it on their site ,is this something new and why didn't I see it on their site? On eBay it says made by cp, has anyone else seen this ? Just curious if anyone knew about it, because I thought this was the only option.

CP Top Mount Exhaust Manifold & Downpipe MAZDASPEED 6 - eBay (item 130479310130 end time Feb-04-11 09:20:55 PST)


Yeah, that's pretty much the same kit SS installer is running, but i thought his was a 1 off. CP boost is from puerto rico. I don't see SU's name on it though.... Also it's a mild steel tubular which probably will work fine, not sure. SS's mani seems to be holding up.

It looks like it requires welding of the cat back, no intake, and custom oil / coolant lines.

[DSIT995]

Maybe it was built for someone and they backed out?
kinda pricey and DJ's Kit + Leen's Top Mount is better choice....... imho

[spnkr21]

Good luck to whoever buys their shit from eBay. You're asking for trouble if you do..

Steed/dj ftw

[djuosnteisn]

What would have been cool is if the flange locations were the same, so that we could have started a "standard" for top mount setups.... oh well. I seriously thought SS's setup was a 1-off.

[Monotonous ONE]

Dustin

whats the progress on your car? where you sittin at right now? whats on the menu?


pics?

Dustin

whats the progress on your car? where you sittin at right now? whats on the menu?


pics?