straight pipe 617?
straight pipe 617?
questions:
-it is worth it??(if i hear turbo whistle then yes)
-does it degrade performance
-why not have it just shortened and dump out right infront of the rear tire or behind the front one?
Thanks!
Well i never thought id get to like this w123 300td but it growing on me...needless to say i like the sound of a diesel and the mufflers arent helping the raw sound of the turbo...so i know the mufflers and resonators are infact just straight threw with some holes that plug up nicely. so i figured why not replace then with same diameter pipe and put a turn down on it or a 3'' turn down
questions:
-it is worth it??(if i hear turbo whistle then yes)
-does it degrade performance
-why not have it just shortened and dump out right infront of the rear tire or behind the front one?
Thanks!
(08-19-2012, 01:48 AM)Gearbound Well i never thought id get to like this w123 300td but it growing on me...needless to say i like the sound of a diesel and the mufflers arent helping the raw sound of the turbo...so i know the mufflers and resonators are infact just straight threw with some holes that plug up nicely. so i figured why not replace then with same diameter pipe and put a turn down on it or a 3'' turn down
questions:
-it is worth it??(if i hear turbo whistle then yes)
-does it degrade performance
-why not have it just shortened and dump out right infront of the rear tire or behind the front one?
Thanks!
Have it just shortened and dump out right in front of the rear tire or behind the front one! 3" if you have the time and money, I cut up my stock exhaust to make the side exit, and drilled & mounted an exhaust hanger to teh rear footwell
That's an order! You will need to install a boost controller or adjust your wastegate to adjust for the new exhaust pressure post-turbo. Besides the weight loss a straight pipe will drop your EGTs around 100*
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
08-19-2012, 08:22 AM #2(08-19-2012, 01:48 AM)Gearbound Well i never thought id get to like this w123 300td but it growing on me...needless to say i like the sound of a diesel and the mufflers arent helping the raw sound of the turbo...so i know the mufflers and resonators are infact just straight threw with some holes that plug up nicely. so i figured why not replace then with same diameter pipe and put a turn down on it or a 3'' turn down
questions:
-it is worth it??(if i hear turbo whistle then yes)
-does it degrade performance
-why not have it just shortened and dump out right infront of the rear tire or behind the front one?
Thanks!
Have it just shortened and dump out right in front of the rear tire or behind the front one! 3" if you have the time and money, I cut up my stock exhaust to make the side exit, and drilled & mounted an exhaust hanger to teh rear footwell
That's an order! You will need to install a boost controller or adjust your wastegate to adjust for the new exhaust pressure post-turbo. Besides the weight loss a straight pipe will drop your EGTs around 100*
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?
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
08-19-2012, 10:57 AM #3Its definitely worth it, boost will build quite a bit quicker = more acceleration, and the car will sound more awesome = more acceleration
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
I love my straight exhaust but in the interest of always modifying stuff..
I was wondering if it would be any use to shape it like those fancy tips they're putting on pickups nowadays.
You know where they have like fins, slots, slits or whatever in them so they seem like ram air or whatever would help scavenge off exhaust.
like this is one kind, you can't see it in the pic but where the front of that tip is open and would have fresh apparent wind scavenging exhaust fumes out.
or so I imagine
![[Image: 07_SilveradoDmax_terminatorlugs.JPG]](http://0.tqn.com/d/alternativefuels/1/0/r/6/-/-/07_SilveradoDmax_terminatorlugs.JPG)
</thread hijack>
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
<thread hijack>
I love my straight exhaust but in the interest of always modifying stuff..
I was wondering if it would be any use to shape it like those fancy tips they're putting on pickups nowadays.
You know where they have like fins, slots, slits or whatever in them so they seem like ram air or whatever would help scavenge off exhaust.
like this is one kind, you can't see it in the pic but where the front of that tip is open and would have fresh apparent wind scavenging exhaust fumes out.
or so I imagine
</thread hijack>
Nice body, tons of ridiculous mechanical issues - 300d turbo 82' /motor 85'
As far as straight piping the exhaust I would say go for it. I did a 3 inch exhaust from the down pipe back and had it exit in front of the left rear tire. I have to clean the rim every so often but that's easy to deal with for the sound and bit of performance difference.
The "fancy tips" they are putting on trucks now, like the Gm duramax exhaust you have pictured are for helping cool the exhaust and exhaust gases when they perform a regen of the diesel particulate filter.
As far as straight piping the exhaust I would say go for it. I did a 3 inch exhaust from the down pipe back and had it exit in front of the left rear tire. I have to clean the rim every so often but that's easy to deal with for the sound and bit of performance difference.
fordheaded
08-19-2012, 09:16 PM #6In the interest of saving money,I decided to make my own stainless exhaust. First one was straight through 2.5" with a 3" for the last 3 feet and a downturn. All sanitary pipe, since I saved it from the scrapyard. Drove that for 2 weeks before the drone at 70mph got to me. Had to put a resonator in line,(made that too) to bring the noise to a different quality. Drone at 70 is tolerable now, but the volume is just so cool on the freeway, plus upper end performance improvement increased remarkably!!!! i'd say go for it, you won't regret it!!
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
08-20-2012, 11:08 AM #7They use these exhaust tips to cool the exhaust to help cut down on grass fires.
1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
so how about i make it 3'' after stock downpipe and side exit infront of rear passanger? i'll have an exhaust shop install it so it will be faster-cheaper if they just cut it off from the DP and go 3'' back.
As for the Manual boost controller and egt where did yall get those nifty 3 gauge pods for on the dash that have egt,boost,and __?__ gauge
This w123 is still stock other than alda back out and a vacuum line missing to the transmisson and also missing vacuum lines to egr.
Thanks for the responses!!
Simple=better
so how about i make it 3'' after stock downpipe and side exit infront of rear passanger? i'll have an exhaust shop install it so it will be faster-cheaper if they just cut it off from the DP and go 3'' back.
As for the Manual boost controller and egt where did yall get those nifty 3 gauge pods for on the dash that have egt,boost,and __?__ gauge
This w123 is still stock other than alda back out and a vacuum line missing to the transmisson and also missing vacuum lines to egr.
Thanks for the responses!!
You can always cut out two circles from the ash tray cover and make it into a gauge pod.
The ones that go on the dash are generic-you can get them on ebay.
The cheapest straight pipe route is to have the muffler shop replace the resonator and muffler with sections of pipe
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
08-20-2012, 12:36 PM #9A VW gauge pod will give you 3 spots for gauges where the ashtray used to go (no idea on part number or source)
You can always cut out two circles from the ash tray cover and make it into a gauge pod.
The ones that go on the dash are generic-you can get them on ebay.
The cheapest straight pipe route is to have the muffler shop replace the resonator and muffler with sections of pipe
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?
If you can take the turbo off it's best to put the EGT probe pre turbo, then you can safely start playing with the pump.
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
08-20-2012, 02:03 PM #11There is a plugged port near the back of the intake manifold, it's got a british thread but a NPT 1/8 will fit.
If you can take the turbo off it's best to put the EGT probe pre turbo, then you can safely start playing with the pump.
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?
I straight piped my 617a swapped G wagon. 2.5" the whole length, exits out the back like normal. Sounds throaty but not crazy loud and yes you can hear the turbo whistle. I originally had the exhaust only about 3 feet long from where I cut it off of the donor car before I got to the exhaust shop. The turbo whistle was much louder, but god it sounded awful. Droney and stupid loud. I wouldn't make the exhaust too short if I were you.
http://www.egauges.com/vdo_ind.asp?Type=...N=150-1042 This is a good gauge and comes with the fittings you will need.
Huh, I always figured those 'fancy exhaust tips' were just so that if you were on the job site and backed into some dirt or something it wouldn't plug the exhuast.
I straight piped my 617a swapped G wagon. 2.5" the whole length, exits out the back like normal. Sounds throaty but not crazy loud and yes you can hear the turbo whistle. I originally had the exhaust only about 3 feet long from where I cut it off of the donor car before I got to the exhaust shop. The turbo whistle was much louder, but god it sounded awful. Droney and stupid loud. I wouldn't make the exhaust too short if I were you.
http://www.egauges.com/vdo_ind.asp?Type=...N=150-1042 This is a good gauge and comes with the fittings you will need.
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
08-20-2012, 07:50 PM #13My stock Garrett turbo took like 5 years to spin down, it sounded amazing. It would honestly freewheel AFTER shutdown if I gave it a quick spin before shutdown.
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?
results:
loud,obnoxious,sometimes deafening,draws lots of attention, off idle smoke more noticeable.
Its not bad if your screwing off and want noise and SOME
turbo spool, which it will continue to spool("freewheel") for a good 30-50 seconds after shutdown. no significant performance results. i have not drove any interstate yet for sustained upper rpm for the "drone" that it may have now. but it sounds wicked when u hammer (L) range then bump it to (S) range on the transmission.(I dont think kickdown s/w works) no idea on rpms due to the tach dont work but id guess 4600-5000 it sounds like a big motor.$51 for one boost gauge? yikes!
Well i had them cut off the exhaust back to where the E-cable has the adjuster in the driveshaft tunnel back and i kept the muffler, there was no resonator(so i was told) and 3'' exhaust welded up to dump infront of drivers rear tire. so its like 3.5' of 3'' and the rest is the stock system.
results:
loud,obnoxious,sometimes deafening,draws lots of attention, off idle smoke more noticeable.
Its not bad if your screwing off and want noise and SOME turbo spool, which it will continue to spool("freewheel") for a good 30-50 seconds after shutdown. no significant performance results. i have not drove any interstate yet for sustained upper rpm for the "drone" that it may have now. but it sounds wicked when u hammer (L) range then bump it to (S) range on the transmission.(I dont think kickdown s/w works) no idea on rpms due to the tach dont work but id guess 4600-5000 it sounds like a big motor.
$51 for one boost gauge? yikes!
(08-20-2012, 11:52 PM)Gearbound loud,obnoxious,sometimes deafening,draws lots of attention,
no significant performance results.
$51 for one boost gauge? yikes!
If it's too loud a turndown tip or a little bit of baffling might help, or both
You won't notice any performance gains until you add a boost controller. You can make one pretty cheaply, or just buy one for like $15 on the bay
I for a VDO boost gauge with tubing for like $30, look around on eb@y
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
08-21-2012, 08:34 AM #15(08-20-2012, 11:52 PM)Gearbound loud,obnoxious,sometimes deafening,draws lots of attention,
no significant performance results.
$51 for one boost gauge? yikes!
If it's too loud a turndown tip or a little bit of baffling might help, or both
You won't notice any performance gains until you add a boost controller. You can make one pretty cheaply, or just buy one for like $15 on the bay
I for a VDO boost gauge with tubing for like $30, look around on eb@y
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?
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
08-21-2012, 11:36 AM #16Haha, you would really hate mine, its just a 3" dia turn down 16" long. Sounds like a tank. It is starting to wear thin on me though I've just been too lazy to take it and get the exhaust done
1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
(08-20-2012, 11:52 PM)Gearbound 3'' exhaust welded up to dump infront of drivers rear tire.
If it went out the back with a turn down tip it would be MUCH quieter!
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
sassparilla_kid
08-21-2012, 01:15 PM #17(08-20-2012, 11:52 PM)Gearbound 3'' exhaust welded up to dump infront of drivers rear tire.
If it went out the back with a turn down tip it would be MUCH quieter!
-1982 300D Turbo, 280k miles, ALDA apparently maxxed, fram 8038, 12 lbs boost, non-egr manifolds, W/M injection, 4 brake light mod, Gen II w126 front rotors/calipers, 4-speed swap
In the works: A/W IC, adjust pump, turbo rebuild (w/60 trim comp wheel)
-1980 300SD, 110k, project car. Goal is to get it lookin' like it did on the showroom floor (body and interior wise, not necessarily under the hood )
-1974 240D, FRESH PAINT!!!!!!
1 Guest(s)
1 Guest(s)