VWDiesel.net The IDI, TDI, and mTDI source.
Engine Specific Info and Questions => IDI Engine => Topic started by: shwak23 on February 16, 2012, 03:27:46 pm
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Does anyone here make their own exhaust? I plan on just making mine exit out the side unless I can figure out how to make an over the axle piece. Would anyone have any idea on how to make that piece?
I plan on making it 3inch stainless all the way back.
Sent from my DROID X2
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Mandrel bender
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Mandrel bender
Yep, I just used some J bends from ebay; cut to fit. Though, I can personally recommend using something other than a hacksaw... ::)
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What kind of car, I think you will find 3 inch will be a little tight over the axle.
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2.5" fits. It doesn't have to be mandrel bent tubing but that is better I guess and probably a good option if you don't have a tubing bender.
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3 inch is good to like what over 300 horse flow wise. might be overkill and if your doing stainless that means ur capable of welding it correct? if you are look up a site called columbia river mandrel bends and buy the bends you need cut and weld them together. thats what i did for my downpipe.
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Well I have a 3" downpipe. I figured I may as well go 3" all the way back.
I mean money grows on trees right?
And yes obviously stainless is more difficult to weld. I have the resources to have it done.
3" over the axle should fit fine. Lots of examples on the vortex. Some even with 4" turbo back vrt's.
Supposedly the over the axle part is a pretty complex 3d Part. I will probably just run it out the side because I am lazy but I think that will be way too loud.
Would it cause much back pressure to have the exhaust. Shrink down to say a 2.25 mandrel bend over the exhaust?
Sent from my DROID X2
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Oh and I guess I should have said does anyone have any idea which bends to use. Something easy like to diy down pipe in the faq.
Sent from my DROID X2
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Well I have a 3" downpipe. I figured I may as well go 3" all the way back.
I mean money grows on trees right?
And yes obviously stainless is more difficult to weld. I have the resources to have it done.
3" over the axle should fit fine. Lots of examples on the vortex. Some even with 4" turbo back vrt's.
Supposedly the over the axle part is a pretty complex 3d Part. I will probably just run it out the side because I am lazy but I think that will be way too loud.
Would it cause much back pressure to have the exhaust. Shrink down to say a 2.25 mandrel bend over the exhaust?
Sent from my DROID X2
If it has been done before then you can run 3 inch the whole way then. It doesn't seem that bad or complex from what I remember Layin under my car doin some of my exhaust. And I loved the side exit on my Shelby charger it was loud but I had a small glass pack to quite it down along with the turbo quieting it down to. No cat
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I have a 2.25 inch TT exhaust here that i can get the over the axle bends from I suppose. I guess the side exit wouldn't be terrible but it would get my car pretty dirty down the side. I don't really car if it is loud outside the car but I would like to be able to talk and not have to shout when driving down the highway.
Right now with just the 3 inch downpipe ending just at the fire wall it drones pretty loud and pretty much fills my car with exhaust and my air filter needs to be changed like every month. >:(
I need to do something. ;D
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Unless ur making stupid power that tectonics should be plenty
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did not see car listed.. BUT j bends, chop saw, tig and V-BAND clamps... trust me on the v bands.. do it after down pipe before flex, then before rear axle so you can take it apart with ease with no leaks..
the v bands will also give you slight twist ability for perfect fit.. in those 2 places..
the issue with side exhaust... 3" of ground clearance... almost need to make it oval... say 1.5" pipe cut in half with say 2.5" sheet connecting them.. else its going to hit.. my 2.5" on the toaster has dents from rocks..
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Unless ur making stupid power that tectonics should be plenty
I have a stock 1.6td. I am pretty sure i need the full 3inch exhaust. lol
Oh and i have a 1990 GOLF.
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(http://i18.photobucket.com/albums/b126/SVOlvo/D24T/DVC01205.jpg)
(http://i18.photobucket.com/albums/b126/SVOlvo/D24T/DVC01207.jpg)
(http://i18.photobucket.com/albums/b126/SVOlvo/D24T/DVC01206.jpg)
I used a stock Hemi Ram exhaust, some Moroso spiral mufflers, and a cutoff saw.
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Unless ur making stupid power that tectonics should be plenty
I have a stock 1.6td. I am pretty sure i need the full 3inch exhaust. lol
Oh and i have a 1990 GOLF.
if you have a stock cast downpipe, you could put a 12" exhaust on your engine, and it would perform no better..
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Unless ur making stupid power that tectonics should be plenty
I have a stock 1.6td. I am pretty sure i need the full 3inch exhaust. lol
Oh and i have a 1990 GOLF.
if you have a stock cast downpipe, you could put a 12" exhaust on your engine, and it would perform no better..
I mentioned a couple times I have a 3inch down pipe. :D
Sent from my DROID X2
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Unless ur making stupid power that tectonics should be plenty
I have a stock 1.6td. I am pretty sure i need the full 3inch exhaust. lol
Oh and i have a 1990 GOLF.
if you have a stock cast downpipe, you could put a 12" exhaust on your engine, and it would perform no better..
I mentioned a couple times I have a 3inch down pipe. :D
Sent from my DROID X2
thats why i said IF, and not BECAUSE..
but still, i stand by what he says.. 3" is pointless on a stock engine for 2 reasons..
for one, its way overkill, you will see little, if any gains..
for 2, its way hard to route under a old VW..
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I built a 2.5" downpipe and I can barely get the bolts in the flange. How do you do it with 3 ? Also, the port on the turbo isn't that big so is 3" really that much of an advantage? Obviously you've made it work so good for you. Unless your driving on a perfectly smooth race track, speed bumps, rocks, squirrels will soon enough flatten your pipe. I've got 2.5 back to the muffler and it's a press fit between the shift shaft and the tunnel. Still gets clanged occasionally. I've got 2" after the muffler on the theory that the gases have cooled and the velocity isn't as great. Also it's what I had on hand. Seems to spool up quick enough, but I have nothing else to compare it to so I don't know if it could be better.
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I understand that 3inches is overkill. It doesn't bother me. I like the dodge ram exhaust. I will look around and see if I can't find one of those in the JY or perhaps something similar. I notice the BMW 735's have pretty big exhausts and I have three of those pos laying around.
When I shift into second and 4th My shifter hits the down pipe but it still works fine.
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I understand that 3inches is overkill. It doesn't bother me. I like the dodge ram exhaust. I will look around and see if I can't find one of those in the JY or perhaps something similar. I notice the BMW 735's have pretty big exhausts and I have three of those pos laying around.
When I shift into second and 4th My shifter hits the down pipe but it still works fine.
you have a VOLKSWAGEN, not a VOLVO 745 turbo diesel.. he was talking about using the dodge exhaust on his volvo.. i doubt it would even come close to fitting a VW, and even if it did, it would exit on the wrong side.. so, try again..
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you have a VOLKSWAGEN, not a VOLVO 745 turbo diesel.. he was talking about using the dodge exhaust on his volvo.. i doubt it would even come close to fitting a VW, and even if it did, it would exit on the wrong side.. so, try again..
Do you really think it was a bolt on to the Volvo???
If I wanted it out the other side, I'd have flipped the final bend the other way. I think I cut the pipe in 5 pieces, and there is a seam at either end of each muffler.
If I were doing it on my caddy, i'd ovalize the tube to about 2"
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I understand that 3inches is overkill. It doesn't bother me. I like the dodge ram exhaust. I will look around and see if I can't find one of those in the JY or perhaps something similar. I notice the BMW 735's have pretty big exhausts and I have three of those pos laying around.
When I shift into second and 4th My shifter hits the down pipe but it still works fine.
you have a VOLKSWAGEN, not a VOLVO 745 turbo diesel.. he was talking about using the dodge exhaust on his volvo.. i doubt it would even come close to fitting a VW, and even if it did, it would exit on the wrong side.. so, try again..
Umadbro?
Obv the Dodge exhaust wouldn't be bolt on... However it may be a cheap source of 3 inch pipe.
I'm going to have to send a stern email to the guy who sold me this Volkswagen saying it was a Volvo...
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I understand that 3inches is overkill. It doesn't bother me. I like the dodge ram exhaust. I will look around and see if I can't find one of those in the JY or perhaps something similar. I notice the BMW 735's have pretty big exhausts and I have three of those pos laying around.
When I shift into second and 4th My shifter hits the down pipe but it still works fine.
you have a VOLKSWAGEN, not a VOLVO 745 turbo diesel.. he was talking about using the dodge exhaust on his volvo.. i doubt it would even come close to fitting a VW, and even if it did, it would exit on the wrong side.. so, try again..
Umadbro?
Obv the Dodge exhaust wouldn't be bolt on... However it may be a cheap source of 3 inch pipe.
I'm going to have to send a stern email to the guy who sold me this Volkswagen saying it was a Volvo...
why does everyone think im always mad when i post something that had a few words capitalized?
i use LOTS OF OBSCENITIES when im mad.. you guys have never even seen me mad..
i was simply stating that your car, and his car, are different..
and where did the whole "BOLT ON" thing come from? i said nothing about bolting anything on..
and 745 never stated that he cut the exhaust up.. i assumed he used a dodge exhaust system on his volvo, or atleast the rear half of a dodge exhaust.. i could see that much working, because the volvo is RWD, like the dodge..
FWIW, you can take ANY exhaust system (ford, chevy, honda, toyota, peugeot) and cut it up, and make it fit on any car, if you really wanted to..
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why does everyone think im always mad when i post something that had a few words capitalized?
i use LOTS OF OBSCENITIES when im mad.. you guys have never even seen me mad..
i was simply stating that your car, and his car, are different..
and where did the whole "BOLT ON" thing come from? i said nothing about bolting anything on..
and 745 never stated that he cut the exhaust up.. i assumed he used a dodge exhaust system on his volvo, or atleast the rear half of a dodge exhaust.. i could see that much working, because the volvo is RWD, like the dodge..
FWIW, you can take ANY exhaust system (ford, chevy, honda, toyota, peugeot) and cut it up, and make it fit on any car, if you really wanted to..
Right... What other cars come stock with a 3inch exhaust? Preferably cars I can most likely find in Junkyards. The more I think about it the more I think it's unlikely I'll find a hemi truck sitting in any local yards.
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why does everyone think im always mad when i post something that had a few words capitalized?
i use LOTS OF OBSCENITIES when im mad.. you guys have never even seen me mad..
i was simply stating that your car, and his car, are different..
and where did the whole "BOLT ON" thing come from? i said nothing about bolting anything on..
and 745 never stated that he cut the exhaust up.. i assumed he used a dodge exhaust system on his volvo, or atleast the rear half of a dodge exhaust.. i could see that much working, because the volvo is RWD, like the dodge..
FWIW, you can take ANY exhaust system (ford, chevy, honda, toyota, peugeot) and cut it up, and make it fit on any car, if you really wanted to..
Right... What other cars come stock with a 3inch exhaust? Preferably cars I can most likely find in Junkyards. The more I think about it the more I think it's unlikely I'll find a hemi truck sitting in any local yards.
any diesel pickup came with decent sized exhaust, even the ANCIENT ford IDIs had rather large exhaust..
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Bigblock stuff and Camaros often have 3". I chose the one I did because it was sitting in the back of a van at Pick n Pull, and looked like a lot of nice 3" pipe for $30
Newer stuff has much smoother bends.
I might have been able to make the Dodge pipe work, but I wanted some muffler, and factory hangars.
It probably took 4 hours to make it fit as snug as it could, and never rub on the car.
It does scrape a little on the dirt roads if I get careless, but it's built to take it.
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2.5" mandrel-bent pre-made sections (Ebay) a flex pipe, and a Magnaflow. Nice to have only a short run, it went together amazingly fast, considering I was pretty rusty at welding.
(http://i243.photobucket.com/albums/ff287/mccavittj/DSCF6111.jpg)
(http://i243.photobucket.com/albums/ff287/mccavittj/DSCF6114.jpg)
(http://i243.photobucket.com/albums/ff287/mccavittj/DSCF6116.jpg)
(http://i243.photobucket.com/albums/ff287/mccavittj/DSCF6117.jpg)
(http://i243.photobucket.com/albums/ff287/mccavittj/DSCF6122.jpg)