Finally built the custom exhaust... sort of
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Finally built the custom exhaust... sort of
OK. As most know I've been trying to get a custom exhaust put together for the Spree for awhile. As usual, too busy to get it finished. I finally bought a $20 Ebay pocketbike pipe and fit it to a stock 19mm Spree downpipe. Looks like this:
Anyone could put this together with a hacksaw and a few minutes at the muffler shop. Takes me 3 months...
The pocketbike pipes have a 22mm downtube. The 19mm Spree downtube fits inside this nicely. I notched the larger tube slightly and inserted the Spree into it. Nice tight fit. Then I tack welded it in place and went for a ride. I should have just bolted it up, checked fit/angle, then taken it back to work for final welding. More on that. Let's say for now I was impatient.
I should note now that the Spree has a bad back tire (brand new Chen Shin, out of round) so I haven't been riding it, it bounces down the street if I do. I warmed it up and went for a ride, with the backend bouncing. Very loud. Seems to lose some midrange but is breathing nicely. As I approach 30 (top speed currently 28) I hear a loud "clang" and a roaring sound. Look behind me to see the expansion pipe bouncing down the road after me; the spot welds had broken. It finally stops under a parked car. Hilarious. I walked the scoot the rest of the way home.
The final version needs full welding and an L-bracket support to the engine case to keep the pipe from breaking the jug over time (too much torque at the exhaust port otherwise.)
The other reason I didn't finish the welding: While this is the easiest version to build, it's not quite correct. Ideally, the Spree downpipe should be the same length as the original downpipe, which was around 9.5". It's currently 11.5" or so. To correct this, I'd need to cut the pocketbike expansion chamber at an angle, reweld it, and attach it to the cut-down Spree pipe. This may or may not actually happen, but if I build it, I'll post it.
Anyone could put this together with a hacksaw and a few minutes at the muffler shop. Takes me 3 months...
The pocketbike pipes have a 22mm downtube. The 19mm Spree downtube fits inside this nicely. I notched the larger tube slightly and inserted the Spree into it. Nice tight fit. Then I tack welded it in place and went for a ride. I should have just bolted it up, checked fit/angle, then taken it back to work for final welding. More on that. Let's say for now I was impatient.
I should note now that the Spree has a bad back tire (brand new Chen Shin, out of round) so I haven't been riding it, it bounces down the street if I do. I warmed it up and went for a ride, with the backend bouncing. Very loud. Seems to lose some midrange but is breathing nicely. As I approach 30 (top speed currently 28) I hear a loud "clang" and a roaring sound. Look behind me to see the expansion pipe bouncing down the road after me; the spot welds had broken. It finally stops under a parked car. Hilarious. I walked the scoot the rest of the way home.
The final version needs full welding and an L-bracket support to the engine case to keep the pipe from breaking the jug over time (too much torque at the exhaust port otherwise.)
The other reason I didn't finish the welding: While this is the easiest version to build, it's not quite correct. Ideally, the Spree downpipe should be the same length as the original downpipe, which was around 9.5". It's currently 11.5" or so. To correct this, I'd need to cut the pocketbike expansion chamber at an angle, reweld it, and attach it to the cut-down Spree pipe. This may or may not actually happen, but if I build it, I'll post it.
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that part about it falling off was funny.lol. ill tell ya, it will scare the * out of ya when it falls off and roars like that. its happened to me before.
00' sa-50 slammed and stretched
89' elite sb, with a 99' af16, (SOLD)
87' spree (SOLD
87' mustang gt vert kenne bell, irs.
90' mustang notch turbo drag car
12' wrx
89' elite sb, with a 99' af16, (SOLD)
87' spree (SOLD
87' mustang gt vert kenne bell, irs.
90' mustang notch turbo drag car
12' wrx
- burnt_toast
- Veteran OG
- Posts: 3592
- Joined: Sat Jul 31, 2004 8:00 pm
- Location: Atlanta, GA
Yeh it looks a little too long. Hey if you took off the muffler but kept the expansion chamber, would it sound loud but still have power too?
Like be as loud as with no exhaust, but actually have an expansion chamber to make it 2stroke properly.
If its possible, it would be one mean sounding spree.
Like be as loud as with no exhaust, but actually have an expansion chamber to make it 2stroke properly.
If its possible, it would be one mean sounding spree.
projects galore
It's already loud enough. Removing the silencer would make it louder, but no faster.
Admin, Hondaspree.net
Buy air filters and gaskets here (Ebay): http://stores.ebay.com/noiseguysstore
Buy air filters and gaskets here (Amazon): www.amazon.com/shops/spreepower
Buy a t-shirt here: https://teespring.com/stores/spree-powersport-products
Buy air filters and gaskets here (Ebay): http://stores.ebay.com/noiseguysstore
Buy air filters and gaskets here (Amazon): www.amazon.com/shops/spreepower
Buy a t-shirt here: https://teespring.com/stores/spree-powersport-products
i had an expansion chamber on my elite at one point and it didnt really do anything but * off my neighbors.(no silencer) it did have better midrange. thats it.(it really sounded mean tho, but i took it off because 2 houses across the street from me are cops.
00' sa-50 slammed and stretched
89' elite sb, with a 99' af16, (SOLD)
87' spree (SOLD
87' mustang gt vert kenne bell, irs.
90' mustang notch turbo drag car
12' wrx
89' elite sb, with a 99' af16, (SOLD)
87' spree (SOLD
87' mustang gt vert kenne bell, irs.
90' mustang notch turbo drag car
12' wrx
- Tippmann98
- Spree
- Posts: 283
- Joined: Sat Jul 31, 2004 8:00 pm
- Location: Lex, Ky.
- Contact:
- Tippmann98
- Spree
- Posts: 283
- Joined: Sat Jul 31, 2004 8:00 pm
- Location: Lex, Ky.
- Contact: