DIY preliminary results
#102
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I admit, I have a LOT of fun with it especially on the street!
#105
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I plan too. I'm still reconstructing from the tree crushing my car way back. Making many changes to the new FE3 installation and am considering the EWG as it will make the new engine position (1-2" lower and back) much easier with the down pipe since there would not be the space lost to the internal wastegate. Downpipe would come straight off/down from the turbine housing. Did you do the VTA pipe for a specific reason vs. back into the exhaust?
#106
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I plan too. I'm still reconstructing from the tree crushing my car way back. Making many changes to the new FE3 installation and am considering the EWG as it will make the new engine position (1-2" lower and back) much easier with the down pipe since there would not be the space lost to the internal wastegate. Downpipe would come straight off/down from the turbine housing. Did you do the VTA pipe for a specific reason vs. back into the exhaust?
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VTA was easier to fab, especially due to space constraints. I envy having more room for the downpipe. Engine setback is awesome.
Coming from a lifetime of rotaries I have a really high threshold for noise. That is also the reason I'm nuts about getting every last bit of flow, on the cheap of course. I made a small VTA muffler for events that have sound limits. It makes it silent. I'll find a picture to post, someone might be interested.
Thanks to your pictures, I cut down a 25+ year old, 40' stupid ash tree that was up against the house. So, you've given some really good tips so far, thanks!
#107
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Last car I cut that firewall shelf under the brake master/booster to make room for the downpipe- but that was because I was trying to make a less restrictive down turn. So this time around I'm actually compensating for the new engine position and the larger FE3.
I'd like to see a pic of the EWG VTA muff- what's it from?
yeah learn from my mistakes. Except my neighbor's, neighbor's trees can still crush me.
I'd like to see a pic of the EWG VTA muff- what's it from?
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#108
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I cobbled scrap tubing together to make the muffler. The body is 3" squished into an oval until the small (excess from the VTA) tubing will fit. The ends of the tubing are spaced back from the end caps to make the "Z" ("S"? "N"?) flow path. The end caps are made from scrap 16ga sheet. The mount is from a muffler hanger off of a '78 Dodge truck.
It bolts somewhere on the sub frame and the flex tubing slips right over the VTA pipe so install/removal takes just a few minutes. I tried to angle things so that it doesn't put too much stress on the VTA pipe. The reason I leave it off is to reduce stress on that #4 flange.
When installed, it is silent and doesn't seem to have any effect on boost levels.
FYI, I was the proud owner of a turbo FE3 in our '90 MX-6 GT. I bumped the boost to 13psi when it had ~180k miles. The chip was supposed to be "tuned" at 15-16psi but the wideband said otherwise.
Sold it to a friend and rumor is that it has over 230k miles - stock and original turbo, clutch, alternator and who knows what else.
It bolts somewhere on the sub frame and the flex tubing slips right over the VTA pipe so install/removal takes just a few minutes. I tried to angle things so that it doesn't put too much stress on the VTA pipe. The reason I leave it off is to reduce stress on that #4 flange.
When installed, it is silent and doesn't seem to have any effect on boost levels.
FYI, I was the proud owner of a turbo FE3 in our '90 MX-6 GT. I bumped the boost to 13psi when it had ~180k miles. The chip was supposed to be "tuned" at 15-16psi but the wideband said otherwise.
Sold it to a friend and rumor is that it has over 230k miles - stock and original turbo, clutch, alternator and who knows what else.
#110
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agreed- ewg muff is new to me, very cool. The slip fit doesn't create any load on the on the #4 runner (via the ewg) correct? Trying to understand this- the ewg is mounted to the subframe and the ewg is rocking with the engine so the slip fit has the ewg pipe sliding inside the fixed muff pipe...
![Dunno](https://www.miataturbo.net/images/smilies/dunno.gif)
#112
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I cobbled scrap tubing together to make the muffler. The body is 3" squished into an oval until the small (excess from the VTA) tubing will fit. The ends of the tubing are spaced back from the end caps to make the "Z" ("S"? "N"?) flow path. The end caps are made from scrap 16ga sheet. The mount is from a muffler hanger off of a '78 Dodge truck.
It bolts somewhere on the sub frame and the flex tubing slips right over the VTA pipe so install/removal takes just a few minutes. I tried to angle things so that it doesn't put too much stress on the VTA pipe. The reason I leave it off is to reduce stress on that #4 flange.
When installed, it is silent and doesn't seem to have any effect on boost levels.
FYI, I was the proud owner of a turbo FE3 in our '90 MX-6 GT. I bumped the boost to 13psi when it had ~180k miles. The chip was supposed to be "tuned" at 15-16psi but the wideband said otherwise.
Sold it to a friend and rumor is that it has over 230k miles - stock and original turbo, clutch, alternator and who knows what else.
It bolts somewhere on the sub frame and the flex tubing slips right over the VTA pipe so install/removal takes just a few minutes. I tried to angle things so that it doesn't put too much stress on the VTA pipe. The reason I leave it off is to reduce stress on that #4 flange.
When installed, it is silent and doesn't seem to have any effect on boost levels.
FYI, I was the proud owner of a turbo FE3 in our '90 MX-6 GT. I bumped the boost to 13psi when it had ~180k miles. The chip was supposed to be "tuned" at 15-16psi but the wideband said otherwise.
Sold it to a friend and rumor is that it has over 230k miles - stock and original turbo, clutch, alternator and who knows what else.
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#115
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agreed- ewg muff is new to me, very cool. The slip fit doesn't create any load on the on the #4 runner (via the ewg) correct? Trying to understand this- the ewg is mounted to the subframe and the ewg is rocking with the engine so the slip fit has the ewg pipe sliding inside the fixed muff pipe...![Dunno](https://www.miataturbo.net/images/smilies/dunno.gif)
![Dunno](https://www.miataturbo.net/images/smilies/dunno.gif)
Sorry for my poor descriptions!
38mm Tial EGW is bolted to the #4 runner of our favorite SS Autochrome/ebay manifold.
Pipe off EWG dives down and angles slightly rearward:
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/57580-diy-preliminary-results-0723071430.jpg?dateline=1350325951)
There is a small brace welded to this pipe that is bolted to an exhaust stud. I guess I could take a picture but I don't want to show my non-SEMA level of fabrication.
The VTA muffler is bolted solidly to the cross-k-sub-frame-member and the flex makes the connection. There is wiggle but not enough to make me feel good about leaving it on all the time. The VTA muffler was a thrash the night before an autox so it wasn't fully thought out. It was meant to be temporary.
I'm sure you will come up with a more elegant setup.
(damn you!)
#116
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Ok, now I remember. A friend was trying to sell me an FE3 (Dare I say it was out of a Kia? If I'm wrong, I'm positive that I'll be called on it!) to put in my anemic B2000 truck. Didn't happen.
#118
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FE3 is actually the head- the 2 liter long block is FE-dohc. The 1.8 liter longblock is the F8. I've got both a kia, and mazda heads from F8 and FE-dohc sitting on the shelf and they all have FE3 stamped on the head. Are we fully derailed yet? Wait-
back to the EWG dump tube - is that dumping between the oil pan and the subframe?
back to the EWG dump tube - is that dumping between the oil pan and the subframe?
#119
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This shows the configuration.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/57583-diy-preliminary-results-0303001539bturbooutoutofbodyexperie.jpg?dateline=1350327556)
FYI, that is wrapped thin wall aluminized pipe from Summit. That is why my entire exhaust - turbo to tip - cost less than $180. The Dynomax muffler was $80-$90 by itself.