exhaust size
exhaust size
10-10-2013, 01:44 PM
#3
It isnt really the ultimate power either as a larger exhaust will let the turbo spool quicker as well
guess it depends on how big the turbo. I dont really know but I would say for much over 200BHP a bigger exhaust would be needed. Exactly what your max would be on 2.5" though I will have to leave to others.
It isnt really the ultimate power either as a larger exhaust will let the turbo spool quicker as well
10-10-2013, 02:28 PM
#5
(10-10-2013, 02:08 PM)Palmer I dont really know to be honest thats for the future to decide i just wanna get the 2.5'' then it cant take the beans later on down the line. At what point do you need tobe looking at a 3'' power wise? Or is it turbo dependant
2.5 will support 400hp worth of air flow with little to no performance issues according Corky Bell. 3 inch is best bet for a diesel however due to the increase exhaust volume and density.
Duncansport
10-10-2013, 02:28 PM #5(10-10-2013, 02:08 PM)Palmer I dont really know to be honest thats for the future to decide i just wanna get the 2.5'' then it cant take the beans later on down the line. At what point do you need tobe looking at a 3'' power wise? Or is it turbo dependant
2.5 will support 400hp worth of air flow with little to no performance issues according Corky Bell. 3 inch is best bet for a diesel however due to the increase exhaust volume and density.
10-23-2013, 09:26 PM
#7
I'm sure someone will disagree about high rpm back pressure.... I default to 3" but that's just me. Cost isn't that different.
" straighten up that star on the grill, assholes."
lgreeley83
10-23-2013, 09:26 PM #7Just go and get 3" and dump it behind the passenger front tire :-)....no but really, why not just throw the 3" on so you don't have to worry about restriction being a factor?
I'm sure someone will disagree about high rpm back pressure.... I default to 3" but that's just me. Cost isn't that different.
" straighten up that star on the grill, assholes."
10-23-2013, 09:36 PM
#8
Technically 2.5" should be fine.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
10-23-2013, 09:36 PM #83" is easy to find performance stuff for, 2.5" is easy to find in stores.
Technically 2.5" should be fine.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
10-24-2013, 11:45 AM
#9
The guy was explaining to me that if you bend a 3'' (mandrel or some crap) it reduces the size at it stretches. Also he wasn't prepared to do a 3'' as it may need to be bodged with the equipment he has. A 3'' system is about £300 more as well.
I think 2.75'' will be fine. I have a 3'' exit that bodged on due to a broken hangar and its mahusive.
Im looking at a lot of money for a 3''.
The guy was explaining to me that if you bend a 3'' (mandrel or some crap) it reduces the size at it stretches. Also he wasn't prepared to do a 3'' as it may need to be bodged with the equipment he has. A 3'' system is about £300 more as well.
I think 2.75'' will be fine. I have a 3'' exit that bodged on due to a broken hangar and its mahusive.
http://www.youtube.com/watch?v=7IaH3ECoW...e=youtu.be
Went for the 3'' ^^
![[Image: SIG1_zps96c20984.png]](http://i1254.photobucket.com/albums/hh619/Palmer948/SIG1_zps96c20984.png)
10-31-2013, 01:00 PM
#13
(10-31-2013, 12:52 PM)Palmer Im impressed! Just needs moar powah! Haha
That sounds great, how many silencers?
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
maxypriest
10-31-2013, 01:00 PM #13(10-31-2013, 12:52 PM)Palmer Im impressed! Just needs moar powah! Haha
That sounds great, how many silencers?
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
10-31-2013, 01:32 PM
#14
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
10-31-2013, 01:32 PM #14sounds very good!
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
10-31-2013, 07:21 PM
#16
(10-31-2013, 06:27 PM)Palmer No silencers at all or a catstraight pipe baby!
If the law man comes a knockin', remind them that a turbocharger is technically a muffler.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
10-31-2013, 07:21 PM #16(10-31-2013, 06:27 PM)Palmer No silencers at all or a cat
If the law man comes a knockin', remind them that a turbocharger is technically a muffler.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
10-31-2013, 11:55 PM
#17
english red rat rod 1977 240D, OM617.952 burning B99.9, iron 4-speed & 2.88 diff, 195/60/R14 on alloys, 5mph bumpers, battery in the trunk, 25mm swaybar, 4x ECE H4 lamps, double brake lamps, deleted sunroof, export zoll & california blue plates
it seems to me that if diameter would be getting reduced at the bends then he would NOT be using a mandrel. isn't consistent cross sectional area the whole point?
english red rat rod 1977 240D, OM617.952 burning B99.9, iron 4-speed & 2.88 diff, 195/60/R14 on alloys, 5mph bumpers, battery in the trunk, 25mm swaybar, 4x ECE H4 lamps, double brake lamps, deleted sunroof, export zoll & california blue plates
11-01-2013, 03:38 AM
#18
(10-31-2013, 06:27 PM)Palmer No silencers at all or a catBrilliant.
How did you get on with the funny u bend part that goes around the steering column?
And that two part exhaust clamp.... You know the one!
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
maxypriest
11-01-2013, 03:38 AM #18(10-31-2013, 06:27 PM)Palmer No silencers at all or a catBrilliant.
How did you get on with the funny u bend part that goes around the steering column?
And that two part exhaust clamp.... You know the one!
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
11-01-2013, 05:01 AM
#20
Later in 2014 i will need someone to fabricate a 3.5" system for my W124.
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
maxypriest
11-01-2013, 05:01 AM #20were they good? How much?
Later in 2014 i will need someone to fabricate a 3.5" system for my W124.
W124 om606 HX40 finished and it's a beauty 450bhp/456ft-lbs
11-01-2013, 11:09 AM
#22
carlitosgy6
11-01-2013, 11:09 AM #22im running 3 inches right from the turbo,no muffler exiting right in front of the rear tire,quicker spool and a beautiful turbo whine from the exhaust
11-01-2013, 12:01 PM
#23
(11-01-2013, 10:09 AM)Palmer They have some bad reviews on the net but then again so will anyone. Proper job though, well it should be for 720! :O
It sounds like a lot of money, but we blew $275 putting a 2.5" exhaust on my truck using the cheapest generic parts on it and did all the welding/cutting ourselves. Fitment took forever (because I'm a perfectionist)
So 720 for a professional shop to do it isn't really that bad, especially in the UK
This post was last modified: 11-01-2013, 12:04 PM by Simpler=Better.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
11-01-2013, 12:01 PM #23(11-01-2013, 10:09 AM)Palmer They have some bad reviews on the net but then again so will anyone. Proper job though, well it should be for 720! :O
It sounds like a lot of money, but we blew $275 putting a 2.5" exhaust on my truck using the cheapest generic parts on it and did all the welding/cutting ourselves. Fitment took forever (because I'm a perfectionist)
So 720 for a professional shop to do it isn't really that bad, especially in the UK
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
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