The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

  • Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;) It will also allow you to view images in threads.

Please Support ExtremePSI
Please Support Morrison Fabrication

Street Build Junkyard GST

Year
1997
Model/Trim
Mitsubishi Eclipse GST

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
That is a piece of art. Are there welds on the mating side of the flange? Also, how were the threaded insert holes that hold the first runner sections filled? Were the inserts left in then welded over? Or were they removed and holes welded/blended all the way through?

@MorrisonFab can answer all those questions as i don't really know that answer. Sorry I can't help too much!
 

MorrisonFab

Supporting Vendor
242
675
May 28, 2017
Johnson Creek, Wisconsin
That is a piece of art. Are there welds on the mating side of the flange? Also, how were the threaded insert holes that hold the first runner sections filled? Were the inserts left in then welded over? Or were they removed and holes welded/blended all the way through?

Thank you!

If you are referring to the exhaust flange with the set screws, that is only used for mock up before the runners are shaped to the oval flange/exhaust port.


Love seeing the progress, Will!!
 

The 4ce

Probationary Member
24
2
May 8, 2018
San Diego, California
If you are referring to the exhaust flange with the set screws, that is only used for mock up before the runners are shaped to the oval flange/exhaust port.

Understood. I don't see the set screw holes in the finished product. How do you fill in the set screw holes when you're done with them? Is there a void where the set screws once were, or are they solid weld infilled, or did you run down the set screws then weld over them?
 

The 4ce

Probationary Member
24
2
May 8, 2018
San Diego, California
Or is the entire flange with set screw holes a separate tool fixture that you mock up the runners with? Then it's transferred to a final production flange? Sorry, I'm just really interested in how things are made.
 

MorrisonFab

Supporting Vendor
242
675
May 28, 2017
Johnson Creek, Wisconsin
Or is the entire flange with set screw holes a separate tool fixture that you mock up the runners with? Then it's transferred to a final production flange? Sorry, I'm just really interested in how things are made.

Exactly :)

We use an oval port exhaust flange which the runners are formed/shaped to the exhaust port rather than the much more common cnc transition flange that makes a fairly abrupt transition from oval to round but requires less tools and time. We did an article on the flange itself with some pretty cool cutaways: http://morrisonfabrications.com/tech/oval-port-flange-vs-transition-flange/

During mock up, having a flange with round holes initially (with the same centerline as the final flange) makes it much easier than trying to oval the initial section first. The set screws are extemely handy as well to get spot on fit-up with a free hand to tack weld things into place.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Fuel lines. Waiting on a couple fittings. Needed different angles. Don't mind the bung i welded on. I am awful at welding but I am learning!
You must be logged in to view this image or video.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Morrison fab is coming in clutch once again. I was looking at a -10an return line to go on my beautiful new turbo and decided to wait and not rush and place an order on a nice 3/4 inch drain line from the Morrisons.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
It was my origonal goal to have my car race ready by the end of the year. Its going to be close. I want to be completely done and making passes in preparation for IFO in Epping, NH October 4th. I need to really practice too. I have never drag raced. Ever. The people involved alone is what is motivating me to commit to a sport that I have never directly participated in.

What I still need now:
Motor stuff:
-catback
-oil return
-finish fuel lines
-valve cover
-install catch cans
-relocate external oil cooler
-dyno tune

Safety stuff:
-cage
-seat
-harmonic balancer
-scatter shield
-engine diaper/catch pan
-helmet
-fire clothes/stuff
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Just little things today. Had to drop the pan to drill it out for a 3/4 return line. I absolutly hate dropping the pan without a lift. But is what it is. Here is a photo because f' it.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Here is the return line. Imma trim it down a bit to get the right angle and im also going to clock the turbo just a weeeee bit but I wanted to seal up the system. Also have been working on fuel lines. Feed line is done and part of the return.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
You must be logged in to view this image or video.
 

The 4ce

Probationary Member
24
2
May 8, 2018
San Diego, California
Lookin good man. What kind of boost are you planning on running. I see you have a 90 silicone elbow right off the compressor housing? I remember mine blowing up like a balloon (it sounded like a firecracker went off). The remedy was to weld on a rigid elbow. I think it was the combination of high boost with sharp flow angles and high temps from the turbine side. Anyhow, keep it coming! Its looking awesome.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Lookin good man. What kind of boost are you planning on running. I see you have a 90 silicone elbow right off the compressor housing? I remember mine blowing up like a balloon (it sounded like a firecracker went off). The remedy was to weld on a rigid elbow. I think it was the combination of high boost with sharp flow angles and high temps from the turbine side. Anyhow, keep it coming! Its looking awesome.
I'll probably be in the ballpark of 30 or 35. I will hit up a buddy of mine about welding on an elbow. Good looking out!
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
fuel line test fittings got here yesterday. I also placed an order for the vaccum lines I need a few random NTP fittings. Still have another 2 weeks before I expect to receive the valve cover.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Fuel lines all passed pressure tests at 90psi. I dont foresee myself going past that. For anyone that doesn't know, fuel rail pressure is a 1:1 ratio between boost and fuel pressure. For every pound of boost is a pound of fuel rail pressure. If you don't understand why then I will gladly go into further detail.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Exhaust is mostly in. I need to get ahold of m12x1.25x28 studs for the 02 housing. Surprising hard to find so I'm ordering oem bolts. 20 bucks for 2 studs and nuts. Easy day.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
I have also ran into an issue with the "tailpipe" of my exhaust. It is an HKS catback and it goes under the rear subframe. If I had googled for 4 seconds I would have known that the ST rear swaybar i got a few years ago wouldn't work. So now I am in contact with Performance Partout for an OEM rear bar for the time being untill i can find a quality RM one.
 

95FullSend99

Proven Member
377
188
Dec 3, 2019
ledyard, Connecticut
Lastly im getting my valve cover made by Mike over at Buschur Racing. He does a little side thing on his own outside of Buschure and he does some really unique stuff with OEM valve covers. Obviously he welds in fittings, new baffles, and powdercoat just like everyone else but he also does a billet oil threaded cap. I have never seen it let alone for the price he does it for. Here is the video he linked to me to show what the cap looks like.
You must be logged in to view this image or video.
 
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com Raven Fabrication RixRacing RockAuto RTM Racing STM Tuned VR Speed Factory

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Top