Exhaust pipe replacement

[Tbaumer]

It's time for a new exhaust set up. Mine has been rattling from the center muffler separating. Since I'm replacing it, now would be the time to upgrade.
I currently have a 200tdi 110 with the center & rear mufflers. I'm reading about upsizing the exhaust &/or removing the mufflers for lower EGT's. I'm not having a problem with high temps with the existing set up. How much of a benefit would it be to leave the 200tdi down pipe & upsize from there? Better to have a custom down pipe made?

 

[KW1985def110]

Custom down pipe would make a difference but, it’s still a 200TDI. So probably not worth the time/money/effort.

Biggest thing I noticed on my 200TDI was going to a straight pipe all the way back. Seemed to let the turbo spool easier and felt peppier, like it could breathe a lot better.

I’d suggest the cheapest possible straight pipe system you can put together. And upsize it if you’re really looking to open things up.

 

[Tbaumer]

That's the route I want to go. I'm all about less parts & keeping it to simple functionality. Wondering about the noise & exhaust smoke increase without any muffler at all. Don't want to be obnoxious.

 

[KW1985def110]

My noise level barely changed if at all. Seems the turbo keeps noise levels down(?). I would say it was more a change in tone to a slightly throatier sounding tractor.

 

[erover82]

The RN system is nice if you want something stainless, mandrel bent, more free flowing, and mostly turn-key. Shops here in hillbilly GP don't do stainless systems, maybe over there in Medford, but thankfully we don't have much winter salt to contend with either. Could take it to a few shops and see what they propose. Custom has the most potential and if you go that route you can have them add a flex joint to the down pipe. I doubt there's much performance to be had from upsizing since the head, manifold, and turbo passages are so small.

 

[erover82]

Another option is to do the CXRacing downpipe and have the rest custom made. Looks nice and uses v-band clamps, but it's spendy and the gains are probably minimal.

Stainless Turbo Downpipe For Land Rover Defender Stock 2.5L

www.cxracing.com

 

[Tbaumer]

I like the CXRacing downpipe! Although, it's so nice, it would look out of place in my upcoming "Building the Not-So-Perfect 110" thread.

 

[Tbaumer]

Fast forward - Check out "The Unboxing Swag" thread. Didn't have to have anything custom made with the 3" catback system. Install pics to follow as soon as I get some time.

 

[Tbaumer]

Had no time over the Labor Day weekend, so I started taking it apart after work tonight. Here are some before pics.

 

[Tbaumer]

Out with the old! Lots of evidence of driving it off road & neglecting maintenance. Muffler break rattled like crazy. I'm encouraged by the side by side bend comparison. Soaking the turbo/downpipe flange with Kroil overnight. Even though it's going to get dirty as soon as I hit the hills again, I need to pressure wash the underside a bit before installing something so clean & shiny.

 

[erover82]

I'm simultaneously jealous of both your exceedingly shiny new exhaust and all the filth your has collected from actual use.

 

[Tbaumer]

Good news & bad. Matches up to the turbo, but the downpipe touches the engine oil feed pipe & oil drain sump assembly hexagonal mounting screw. I think I'm going to have to remove the standoff mounting screw & bend up a bracket that offsets the pipes.

 

[Tbaumer]

The pipes both have flexible lower ends, so I'm pretty sure I can rotate the oil drain sump pipe & bend the oil feed pipe slightly for enough clearance. I have a 200tdi on an engine stand with a better view of the pipes & mounting screw. Here is a drawing of my idea. Current problem on the left. Relocate solution on the right. Offset bracket pieces top middle. What do you think?

 

[erover82]

Impressive drawing skill there. Another strategy could be making a flange spacer from sheet and/or stacking gaskets to move the whole downpipe away from the oil feed pipe / hex mount screw.

 

[Tbaumer]

Another strategy could be making a flange spacer from sheet and/or stacking gaskets to move the whole downpipe away from the oil feed pipe / hex mount screw.

That's a good idea! I only need about 1/4" to remove contact. I'll try that before I start altering the design.

 

[KW1985def110]

While you have it out/easily accessible you may want to consider an exhaust wrap to help with heat, LOTS of options available, one example below.

Exhaust Wrap | Exhaust Pipe Heat Wrap| Design Engineering Inc.

Keep heat under control with our header and exhaust wraps. Reduce under hood temperatures as much as 50%. Browse our collection now!

www.designengineering.com

 

[FlyersFan76]

I need this in my truck. I also need the time to do it. lol

Thank you for the updates. My truck was a Diesel Turbo (19J) and was converted to a 200Tdi except for the exhaust so this will be a nice addition.

Wondering what the before and after sound and smoke might be.

 

[rocky]

Look at your exhaust to chassis brackets. Might be worth replacing.

 

[Tbaumer]

I’m having a flange spacer plate worked up, so I don’t have to stack gaskets. Considering exhaust wrap with the closer clearances, The kit came with new exhaust to chassis brackets. Will post sound & smoke results when finished.

 

[Tbaumer]

I had these turbo to down pipe spacers made up, but they were made with the original gasket as a guide & the fit wasn't great to the new exhaust flange, so I had a second round made up based on the new exhaust flange gasket.