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What is the best exhaust setup? by fdnyguy on 28 Apr, 2011 08:37
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Ok, gurus, what do you recommend?
My 89 N.A is almost complete, however we have a ? with what is the best exhaust setup.
The engine is bored over 1.00 mm and has a Giles IP and injectors.
IIRC, an exhaust manifold from a 1.8 gasser with a 2.25" exhaust pipe was the recommended setup (corrections welcomed). If you have part numbers handy, very much appreciated......
1.8 headers were ruled out for not long lasting.
As usual, many thanks.
Stay safe, stay well. Jimmy. -
#1 by R.O.R-2.0 on 28 Apr, 2011 17:24
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get the dual downpipe setup off an 88-89 8v Jetta w/ a PF code engine.. it will have the dual downpipe..
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#2 by fdnyguy on 28 Apr, 2011 17:39
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get the dual downpipe setup off an 88-89 8v Jetta w/ a PF code engine.. it will have the dual downpipe..
http://www.techtonicstuning.com/main/index.php?main_page=product_info&cPath=2_12_50_47&products_id=183
I hope this is the part you are suggesting??
Thanks again. -
#3 by mystery3 on 28 Apr, 2011 23:02
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I believe he's talking about picking one out of the junkyard. If you're going to buy it from TT you might as well spend a few extra dollars and get the 4 to 1 headers IMHO.
http://www.techtonicstuning.com/main/index.php?main_page=product_info&cPath=2_12_50_48&products_id=151 -
#4 by fdnyguy on 29 Apr, 2011 05:33
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I believe he's talking about picking one out of the junkyard. If you're going to buy it from TT you might as well spend a few extra dollars and get the 4 to 1 headers IMHO.
http://www.techtonicstuning.com/main/index.php?main_page=product_info&cPath=2_12_50_48&products_id=151
Thanks for the reply. Seems for the cost of the TT manifold and pipe I can get the headers. For the life of me I cannot recall who told me to avoid the headers ( I think I asked once before, I'll check my pm's as well) for they would not last as long.
While we all know a 52 hp 1.6 NA will not win any races, with the Giles IP and a better exhaust, obviously ANY improvement in hp is a plus. The head on my original engine may be warped from going up the hills on NY Rt-17 in 3rd or 4th gear, so this new power is a big plus. And will help with the morons in NYC traffic who will bit*h and whine about fuel costs, but still drive an SUV like Mario Andretti.
So no better place to come for an answer than this site.
Again, many thanks.
Stay safe, stay well. Jimmy.
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#5 by jseeley on 29 Apr, 2011 08:05
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For the life of me I cannot recall who told me to avoid the headers ( I think I asked once before, I'll check my pm's as well) for they would not last as long.
I believe people say to avoid the headers on a diesel because with the extra vibration of the engine it will eventually break/crack the header. I picked up a 8v manifold and dual downpipe for $75. They are around often in the vortex classifieds.
My exhaust manifold isn't in yet, but I also have a 1.6 NA with a Giles pump.
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#6 by fdnyguy on 29 Apr, 2011 08:31
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For the life of me I cannot recall who told me to avoid the headers ( I think I asked once before, I'll check my pm's as well) for they would not last as long.
I believe people say to avoid the headers on a diesel because the extra vibration of the engine it will eventually break/crack the header. I picked up a 8v manifold and dual downpipe for $75. They are around often in the vortex classifieds.
Mine's not in yet, but I also have a 1.6 NA with a Giles pump.
Thanks. My 89 is a good distance away, and the guy who intalled it said it runs great with the Giles IP. So ordering the parts is the easy part. Once the exhaust is in, I should be able to get it back on the road. While I love my 09 TDI, there is something about driving that Mk2 that can't be explained......
But I'm certain most everyone on here knows that...
Good luck with your Giles IP.
Of course, everyone's opinion is appreciated and respected. Thanks again.
Stay safe, stay well. Jimmy. -
#7 by 8v-of-fury on 29 Apr, 2011 08:32
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its got the original 89 n/a dp on it? If you were to look in to its outlet, and measure how large it is in there.. You will find it is nearly 2.5". It was the 1 5/8" exhaust that was after it that was the stock restrictive abomination lol.
If you run 2" (2.5" maximum on an na) to a good muffler out back and make sure it exits from under the car/bumper/rear valence you shouldnt have any drone issues.. with it being as straight through as possible.
I currently have my 91 na motor running about a 2" straight pipe with a 32" cherry bomb in the tunnel and it exiting driver side before the rear tire. Not to bad a drone, the engine gives off more sound of clack-clack-clack than the exhaust does anyway.. lmao -
#8 by truckinwagen on 29 Apr, 2011 08:57
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is your car a mk2?
if so, I have a set of headers that I bought before I got out of vw's that I could let go for a reasonable price...
PM me if you are interested.
-Owen -
#9 by fdnyguy on 29 Apr, 2011 09:45
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Going to check on all the suggestions. Keep them coming.
As posted a million times, it amazes me what you guys do with these little N/A and TD's. Especially with rising fuel costs, its nice to get power and great mileage.
Taking my wife's Suburban to Maryland this weekend. I'm dreading the mileage on that pig.....
Would have dropped a 4BTA in this if I had the talent to do so...
I'll drop you a pm, Owen. Thanks.
Stay safe, stay well. Jimmy. -
#10 by R.O.R-2.0 on 29 Apr, 2011 10:54
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For the life of me I cannot recall who told me to avoid the headers ( I think I asked once before, I'll check my pm's as well) for they would not last as long.
I believe people say to avoid the headers on a diesel because with the extra vibration of the engine it will eventually break/crack the header. I picked up a 8v manifold and dual downpipe for $75. They are around often in the vortex classifieds.
My exhaust manifold isn't in yet, but I also have a 1.6 NA with a Giles pump.
if you brace it to the block in a couple places, you MIGHT get away with a header.. i ran a header on my rabbit, it worked alright, but it would have cracked had i kept running it without the lower block braces i built..
at a certain RPM, the header would BUZZ.. it was annoying. and the header didnt quite fit right, so it hit the body when you used reverse..
if it were me, i would avoid a tube header. theres going to be no benefit over a manifold and dual downpipe.. the mk2 engine mounts MIGHT be solid enough to get away with it, but there again, thats a big might..
and really, i think that all VW manifolds flow pretty well, but its what comes after the manifold (toilet bowl, down pipe, exhaust system) that is the restrictive part..
the manifold is going to be the piece that can go the distance.. its a *** to put a header on a mk2, i think i would stick with the dual downpipe and manifold. then you dont have to ALMOST pull your engine to get it in there..
i removed the manifold, and downpipe from my GTI with the engine whole, still in the car, then put in the dual d/p and mani in also. didnt have to pull the head like most do.. -
#11 by VW Smokr on 29 Apr, 2011 17:47
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Hitting a few boneyards, I found that some of the dual downpipe/manifold setups weren't as large (in total cross-sectional area) as some of the singles; I'm sure others are larger. In the end (1.6NA) I used a 1.8 gasser single-exit manifold & downpipe (roughly 2.25" ID), cleaned up the obvious casting flash & mismatches with a die grinder, and had a 2.25" DP-back system made for it, flowing through a short 2.25" "Turbo" muffler. It was an immediate improvement over the constipated, garden hose-sized OEM exhaust system: the engine is just much more responsive/spunky/free-revving.
I also liked that I could fit the EGT probe in the center of the manifold's single outflow. Not as purty as ceramic-coated headers and no bragging rights; it just works.
J.R.
SoCal -
#12 by keaton on 29 Apr, 2011 18:11
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your best exhaust mod
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#13 by R.O.R-2.0 on 29 Apr, 2011 20:30
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#14 by fdnyguy on 30 Apr, 2011 10:18
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Hitting a few boneyards, I found that some of the dual downpipe/manifold setups weren't as large (in total cross-sectional area) as some of the singles; I'm sure others are larger. In the end (1.6NA) I used a 1.8 gasser single-exit manifold & downpipe (roughly 2.25" ID), cleaned up the obvious casting flash & mismatches with a die grinder, and had a 2.25" DP-back system made for it, flowing through a short 2.25" "Turbo" muffler. It was an immediate improvement over the constipated, garden hose-sized OEM exhaust system: the engine is just much more responsive/spunky/free-revving.
I also liked that I could fit the EGT probe in the center of the manifold's single outflow. Not as purty as ceramic-coated headers and no bragging rights; it just works.
J.R.
SoCal
How true. I recall the size of my stock exhaust and shake my head..... lolol
A lot of knowledge on here, so I get a lot of ideas.....
Keep them coming,.
