Looking for the perfect buggy exhaust

andk5591

Here's the deal - Manx clone, 1776, dual kads, mild heads, 1:25 rockers, SVDA. Runs awesome. Currently using a Thunderbird Quiet Baja (1 1/2" tubes with full sized muffler). Previously had a set of Empi Off Road Racing duals (dual cannon) on it - With baffles and glass wrapped they were ungodly loud and my low end torque was terrible.

Here's the problem - I am freshening up the buggy this year (paint, etc) and the Thunderbird is showing its age, plus there is too much hanging off the back of the engin for my taste.

I LOVE the look of duals, but I am not aware of any that provide good street performance without being really loud. I have looked at various threads and online stores. but hanvent found the solution. Any ideas?
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

Dale M. · Posted: Wed Mar 23, 2011 9:01 am Post subject:

Duals will cause performance drop... You might want to consider 4 into 1 (merged header) for best performance like the Tri-Mil with quiet pack muffler or arrestor...

Image may have been reduced in size. Click image to view fullscreen.

I would only consider ceramic coated for longevity...

Dale
_________________
“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.

"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
============================================================
All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...

andk5591 · Posted: Wed Mar 23, 2011 9:48 am Post subject:

Thats actually one that I am pondering - That extra 6" with the muffler running behind the pipes makes a difference. Once again, keeping the current performance level is paramount. Thanks
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

BL3Manx · Posted: Wed Mar 23, 2011 10:40 am Post subject:

andk5591 · Posted: Wed Mar 23, 2011 12:18 pm Post subject:

I was thinking that - and that's OK - will stay with 4 in 1 - Waiting on email back from SoCal to confirm if that exhaust will clear dual carbs. I believe that I want to stay with 1 1/2" - since that is what I run now and it should keep my low end strong. Thanks for the help. I assume that the Super Trapp style mufflers are louder, correct?
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

junior55 · Samba Member Joined: October 01, 2006 Posts: 941

I always like to post my homemade quads when someone looks for
options to duals.
Performance loss ?
I invite you to test drive these to find it.

Dale M. · Posted: Wed Mar 23, 2011 1:31 pm Post subject:

Dale M. · Posted: Wed Mar 23, 2011 1:32 pm Post subject:

lostinbaja · Posted: Wed Mar 23, 2011 2:12 pm Post subject:

The "Manx Sidewinder" makes good HP, fits great, lasts a long time and it's made in the U.S.A.
This is an original Manx Sidewinder that has been in use since 1968 with one Summer off for a buggy rebuild.
I also like the fact that you can see more of the engine.

_________________
Jerry...
If it's being towed, it must be a trailer!
"Vee Grow Too Soon Oldt Und Too Late Schmardt"
RIP Morgan

My photos
http://www.manxgallery.org/gallery/album92

junior55 · Samba Member Joined: October 01, 2006 Posts: 941

Dale, primary reason for quads is to keep the buggy "short"..
If it were a drag buggy, the 4 into 1 would be on there.

I have had both on here and these actually are better than the 4/1's I had.. but that's according to my ass-dyno.

I also agree 2 into 1 or dual cannons can degrade power across the board, especially the unequal length ones.

snowymonkey · Posted: Wed Mar 23, 2011 6:34 pm Post subject:

jaymonkey · Samba Member Joined: September 13, 2005 Posts: 433

andk5591 · Posted: Thu Mar 24, 2011 3:00 am Post subject:

But a more PC term is Butt-Dyno......... LOL - But, I don't trust mine......I did a whole series of tests with the buggy playing with timing and such. And then put it on a chassis dyno which gave way different results. But, (pun intended) thanks for the ideas all.
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

kustoms · Samba Member Joined: November 20, 2003 Posts: 1313

This one is stainless. Its from CB. The motor is 2005 cc and dynoed at 145 hp.

_________________
Google this.
"Bread and Circuses"

And wondering what the heck happen to my Samba post count?!?
Tom Thompson
Tijuana Kustoms Inc. (TM)
1-516-338-8746
www.tjkustoms.com

laug6615 · Posted: Thu Mar 24, 2011 6:26 am Post subject:

I just ordered a Tri-Mil from with a glasspack from SoCal. I had the EMPI version of the one that Dale posted and it sucked big time. Poor craftsmanship from EMPI as usual, pieces didn't fit together tight and exhaust leaks from various places. I also liked the MANX sidewinder like lostinbaja posted, but you cant find the one that bolts together anymore. So I went with this one. Good thing about the way the muffler bolts on is you can also buy different ends like a Stinger, U-Turn pipe or a Quietpack. Hope it has a nice sound to it, I dont like it to loud but loud enough to hear it.

_________________
Gary
______________________________
Allison Daytona DuneBuggy

MURZI · Posted: Thu Mar 24, 2011 7:08 am Post subject:

generic empi exhaust with Hayabusa muffler.....QUIET!!!

video...

_________________
62 vert
2276
Tim’s welded heads
45 Dells
A1 sidewinder
Fk44 cam

TC/TeamEvil · Samba Member Joined: February 16, 2004 Posts: 1769

"Duals will cause performance drop... "

Dale,

Would you know, at what point does duals make sense for a VW engine? I've heard before that a single muffler is the best way; provides needed back pressure and the four-into-one design helps with scavenging and such, I guess. Would you know what size and specs the engine would need to be to honestly benefit from the step up to dual exhaust? I imagine that, at a certain point in performance, the additional breathing from the duals would outweigh the lack of back pressure and scavenging.

Do you have any info on this or even know of a link where I could find some? Sure could use a little help ! !

Thanks ! !

TC

lostinbaja · Posted: Thu Mar 24, 2011 1:13 pm Post subject:

wythac · Samba Member Joined: August 02, 2004 Posts: 2791

Let me throw this in for sauce;

I have had a heavily discounted, unused, ceramic coated dual cannon system advertised for a few months here with hardly a nibble. I think it is going to end up being someone's motor bench test system. It seems nobody wants it. Maybe I will keep it around and put it on after I get in a dispute with a neighbor............

adriaan pienaar · Posted: Thu Mar 24, 2011 2:08 pm Post subject:

This is my 4-into-1, lucky swop meet find which I had ceramic coated afterwards. A little bit loud, but I'm happy! Cool

_________________
Please say Hi to us at
www.aircooledvwsa.co.za &
http://hotwheelsclubza.freeforums.org


Hello! Log in or Register \| Help \| Donate \| Buy Shirts	See all banner ads \| Advertise on TheSamba.com

Looking for the perfect buggy exhaust
Page: 1, 2, 3, 4, 5, 6, 7, 8, 9 Next

Forum Index -> Kit Car/Fiberglass Buggy/356 Replica		Share:
		Print View

	Forum Index -> Kit Car/Fiberglass Buggy/356 Replica	All times are Mountain Standard Time/Pacific Daylight Savings Time Page: 1, 2, 3, 4, 5, 6, 7, 8, 9 Next
Page 1 of 9