The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Installing Turbo- Downpipe and manifold PITA!!!

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Blitzeclips

15+ Year Contributor
1,571
6
Aug 5, 2004
Bear, Delaware
I am fed up with this damn downpipe and manifold. The turbo wasn slightly clipping my radiator when we went to put it in, so we removed the fan and eventually got the manifold/turbo on. We are trying to fit the dowpipe in but these 2 A/C comp lines are RIGHT IN THE WAY. I want to unbolt them and move the damn things but I'm afraid Freeon will get everywhere. So, my question to you guys is, what is the trick to getting this pipe on the turbo? We tried til 3 AM last night and gave up after 20000000 attempts. So, today we are going to bolt up the turbo and downpipe WAY UP by the valve cover, and hoefully lower it in. But honestly, if it wasn't for those 2 damn lines, it would fit PERFECTLY.

So far we've made good progress, but we need these things to fit up. It's just not wanting to cooperate at all. :mad: :cry:
 
Blitzeclips said:
We are trying to fit the dowpipe in but these 2 A/C comp lines are RIGHT IN THE WAY. I want to unbolt them and move the damn things but I'm afraid Freeon will get everywhere.

just undo the lines and move them out of your way. Then put them back on. You can go buy you some r134a refrigerant and fill her up. thats what i did and mine works great.
 
Why even go through that much trouble? You can just un-bolt the AC compressor from its bracket and hang it over the fender. BAM! No AC lines in your way, and you don't have to recharge the system...
 
well little update right now we moved the AC charger lines because there is just not room for the downpipe with it there. My buddy from a VERY reputable tuning shop (carv2.com) came by and gave me a run down of everything... It HAD to be moved. So, I am going to send these pipe out to a company who can re-bend them around my downpipe. For now, no A/C. :rolleyes:

Whats left on the list:

intercooler pipes (need 90 degree welded to straight pipe)
feul pump
FMU
oil lines
boost controller

Gauges, manifold, turbo, MOST charges pipes, oil pan, and BOV are all looking good. But we cant officially bolt up the down pipe without doing my I/C plumbing first. Otherwise there will be VERY little room to manuever my I/C hot pipes..

Anyways I've been documenting and taking pics during the install, so if I grab a chance tonight I will post them. Thom (Malenko) should be stopping by later to help us out with some things...
 
If you still have things left and know it, yet obviously can't get the downpipe fitted on the way the bends are routed then why remove the lines? Why not just go get the pipe tweaked..? It wouldn't have been setting you back.
 
i'm actually having the same problem... I have a 14b turbo and the o2 housing smacks right into the radiator, if anyone has any ideas...
 
You must be logged in to view this image or video.



You must be logged in to view this image or video.
 

Attachments

You must be registered for see attachments list
O2 housing?

Because of the way MHI turbos need to be positioned in our cars, almost no one uses those O2 housings from the factory turbocharged DSMs. Find a flange that'll bolt up to the turbo and have a local exhaust shop fab up a downpipe.

Turboflanges.com used to sell the approriate flange.
 
wouldn't i need to go with a external wastegate? im used to everything just bolting up
 
ClErMoNT2g said:
wouldn't i need to go with a external wastegate? im used to everything just bolting up

No, you can still keep the internal wastegate - just have the shop weld a dump tube from the wastegate outlet on the turbo flange either back into the exhaust stream, or leave it open and facing toward the ground.
 
ClErMoNT2g said:
so, i can technically hack off the o2 housing and just use the flange?

Well, I don't know about that. Those stock O2 housings are made of a cast metal, which can be pretty difficult to weld. I would just look around for an MHI Turbo exhaust flange. Turboflanges.com used to sell them, but their website doesn't really provide the means to purchase anything from them anymore... Chris knew of another place that sells them, but I always forget its URL.
 
i actually got a hold of someone at turboflanges.com, and they still sell it for 22.00 plus 6.00 shipping....not bad
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest Classifieds

Back
Top