Author Topic: Exhaust brakes again...  (Read 4888 times)

November 02, 2010, 07:28:16 pm

TDsamurai

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Exhaust brakes again...
« on: November 02, 2010, 07:28:16 pm »
So ive done some searching, and i read all the opinions, and thoughts about exhaust brakes, and ive read how some people dont know the difference between jake brakes and exhaust brakes. Anyway i dont want any run arounds of how they work and how the back pressure can be excessive and blah blah blah.

And if some are wondering why i want an exhaust brake on a VW diesel, its because its in my samurai, and i want to tow a trailer with a quad and small boat in the near future. and besides we all know how cool it sounds.

Anyways finally my question, does anyone have some real world experience with putting an exhaust brake on a 1.6TD yet?

Reply #1November 02, 2010, 07:56:07 pm

dankcorey22

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Re: Exhaust brakes again...
« Reply #1 on: November 02, 2010, 07:56:07 pm »
im wondering also! interesting to me! wouldn't it be cool if our engines had rockers so then we could add a engine brake/jake!  ;D
MY CARs-BLACK 99.5 Jetta TDI 5 speed 93,000- DC Stage 2 Clutch Kit 14Lb FW, Afe air intake box, 2.5" DP, 11mm IP, 2.5" stright piped, boost gauge, PP764, RC5 (WOW), 3-Bar, McNally EGT/Boost, 17/22, Race Pipe, EGR Cooler Delete, PD lift pump, R32 MAF housing,FMIC

1983 VW Jetta 1.6 turbo fuel mods

Reply #2November 02, 2010, 08:01:25 pm

blackdogvan

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Re: Exhaust brakes again...
« Reply #2 on: November 02, 2010, 08:01:25 pm »
Jake brakes make the sound you want. Butterfly valve exhaust brakes just make a slight hissing noise, i doubt you'll be happy if all you want it for is the noise. Had one one a dodge 12v, worked great, very quiet.
1991 Vanagon 1.9 mTDI

Reply #3November 02, 2010, 08:09:10 pm

TDsamurai

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Re: Exhaust brakes again...
« Reply #3 on: November 02, 2010, 08:09:10 pm »
yea jakes would be ideal, but ill take what i can get. Im glad your on the same page though, im tired of bringing it up with people and gettin the "but why". I mean really my brakes will probably put up with a trailer and then some, but come on how many people have an exhaust brake on a suzuki samurai, or any volkswagen diesel for that matter. Id love to be the one to try it out but after recently spending 3g on my engine i cant justify experiments. I think i need a cheap little jetta or something.

When i was workin on imports from japan, the little cabover things they had had exhaust brakes and you are right, they dont make quite the noise a jake does. But it definately had more of a rythym to it than a hiss.

Anyone ever manually override a jake brake and give it some throttle?? My instructor wasnt impressed when his ears were ringin and there was a 2 foot flame coming out the turbo haha, oh good times at school.

Reply #4November 03, 2010, 04:58:50 am

Henchman

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Re: Exhaust brakes again...
« Reply #4 on: November 03, 2010, 04:58:50 am »
If I were going to try it, I would probably start with something like this - http://cgi.ebay.com/ebaymotors/Pierburg-Exhaust-Muffler-bypass-flapper-valve-RACE-NEW-/170558499080?pt=Motors_Car_Truck_Parts_Accessories&hash=item27b6142908 .

It the first one I pulled up, I'm sure there are others out there.  Would give you a sense of some engine breaking.  Just make sure you don't place it any further than the first before the first muffler, or it may be a one shot deal!

Ian
Under way - 1991 Passat Syncro Wagon w/m-tdi

1991 Passat GL Wagon w/AAZ conversion (now using engine/tranny from 1993 Passat

1993 Passat GL 1.9 Diesel (RIP 385k km, engine, tranny, clutch all original)

Reply #5November 03, 2010, 06:41:51 pm

dankcorey22

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Re: Exhaust brakes again...
« Reply #5 on: November 03, 2010, 06:41:51 pm »
If I were going to try it, I would probably start with something like this - http://cgi.ebay.com/ebaymotors/Pierburg-Exhaust-Muffler-bypass-flapper-valve-RACE-NEW-/170558499080?pt=Motors_Car_Truck_Parts_Accessories&hash=item27b6142908 .

It the first one I pulled up, I'm sure there are others out there.  Would give you a sense of some engine breaking.  Just make sure you don't place it any further than the first before the first muffler, or it may be a one shot deal!

Ian

Thats cool i would like to try that if i had the extra cash right now!
MY CARs-BLACK 99.5 Jetta TDI 5 speed 93,000- DC Stage 2 Clutch Kit 14Lb FW, Afe air intake box, 2.5" DP, 11mm IP, 2.5" stright piped, boost gauge, PP764, RC5 (WOW), 3-Bar, McNally EGT/Boost, 17/22, Race Pipe, EGR Cooler Delete, PD lift pump, R32 MAF housing,FMIC

1983 VW Jetta 1.6 turbo fuel mods

Reply #6November 04, 2010, 11:26:04 am

R.O.R-2.0

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Re: Exhaust brakes again...
« Reply #6 on: November 04, 2010, 11:26:04 am »
how are these engines going to handle the ADDED BACK PRESSURE? not gonna blow the gasket out of between the head and block is it?
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #7November 04, 2010, 12:22:31 pm

rabbitman

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Re: Exhaust brakes again...
« Reply #7 on: November 04, 2010, 12:22:31 pm »
I think it would be fine, it won't be firing with the gate closed anyways.
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #8November 04, 2010, 01:07:16 pm

TDsamurai

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Re: Exhaust brakes again...
« Reply #8 on: November 04, 2010, 01:07:16 pm »
i think turbo spool up with added temperature is alot harder on it than the exhaust brake. and i have a mls gasket with arp studs. im more concerned with valve float.

Reply #9November 06, 2010, 07:20:23 pm

dankcorey22

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Re: Exhaust brakes again...
« Reply #9 on: November 06, 2010, 07:20:23 pm »
Will some one comment that know how good it would work? Im very curious  if it will work i wanna try one on my car im rebuilding
MY CARs-BLACK 99.5 Jetta TDI 5 speed 93,000- DC Stage 2 Clutch Kit 14Lb FW, Afe air intake box, 2.5" DP, 11mm IP, 2.5" stright piped, boost gauge, PP764, RC5 (WOW), 3-Bar, McNally EGT/Boost, 17/22, Race Pipe, EGR Cooler Delete, PD lift pump, R32 MAF housing,FMIC

1983 VW Jetta 1.6 turbo fuel mods

Reply #10November 06, 2010, 10:00:48 pm

TDsamurai

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Re: Exhaust brakes again...
« Reply #10 on: November 06, 2010, 10:00:48 pm »
im not sure the exhaust bypass valve is a good idea as it completely shuts out exhaust does it not? a proper exhaust brake i would think would still allow air past it, or would it just not be able to close completely as the air has nowhere else to go? i could run onboard air and have a pressure valve so i could set it for any pressure i want, that would be cool.

Reply #11November 07, 2010, 07:43:17 am

dankcorey22

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Re: Exhaust brakes again...
« Reply #11 on: November 07, 2010, 07:43:17 am »
or you could drill holes in the flapper. like the pac brake and the banks ones
MY CARs-BLACK 99.5 Jetta TDI 5 speed 93,000- DC Stage 2 Clutch Kit 14Lb FW, Afe air intake box, 2.5" DP, 11mm IP, 2.5" stright piped, boost gauge, PP764, RC5 (WOW), 3-Bar, McNally EGT/Boost, 17/22, Race Pipe, EGR Cooler Delete, PD lift pump, R32 MAF housing,FMIC

1983 VW Jetta 1.6 turbo fuel mods

Reply #12November 07, 2010, 03:47:14 pm

TDsamurai

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Re: Exhaust brakes again...
« Reply #12 on: November 07, 2010, 03:47:14 pm »
thats a good idea, i like it.

Reply #13November 08, 2010, 10:02:59 am

R.O.R-2.0

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Re: Exhaust brakes again...
« Reply #13 on: November 08, 2010, 10:02:59 am »
jake brakes are cool

an "exhaust throttle" doesnt seem nearly as cool..

why dont we use our VNTs as exhaust brakes like Banks Power does on the 2006 and newer chevy pickups?

my dads truck uses the transmission and turbo as the exhaust brakes..

if you set the brake on HIGH and let off the throttle, it will skid the back tires (all 4) without actually touching the brake pedal. but thats with the brake on high and no load in the bed.
« Last Edit: November 08, 2010, 10:54:00 am by R.O.R-2.0 »
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #14November 08, 2010, 10:21:37 am

dankcorey22

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Re: Exhaust brakes again...
« Reply #14 on: November 08, 2010, 10:21:37 am »
Isnt those called VGT turbos? I may be wrong.
MY CARs-BLACK 99.5 Jetta TDI 5 speed 93,000- DC Stage 2 Clutch Kit 14Lb FW, Afe air intake box, 2.5" DP, 11mm IP, 2.5" stright piped, boost gauge, PP764, RC5 (WOW), 3-Bar, McNally EGT/Boost, 17/22, Race Pipe, EGR Cooler Delete, PD lift pump, R32 MAF housing,FMIC

1983 VW Jetta 1.6 turbo fuel mods