exhaust sound different. brith/jap

[mightymidget]

watching bugeyes on YouTube I realized how much I enjoyed the sounds of British motors. since I was planning on installation of an a15 datsun drivetrain I have in my bugeye. well is the sound comparable?

 

[racingenglishcars]

The a15 has 8 ports. It sounds like a Datsun engine. Most special cars have their own special sound. The A-series, VW beetle, Jag V12 for examples all are special in their own way. I don't think you will reproduce the British sound with the Datsun engine.

 

[RickB]

It also depends on what you do with it on the muffler end.
Whether you put on a tube style exhaust manifold or stay stock.
What size pipe you use.

On my A15 I had a Monza style quad muffler which had a throaty sound, I recently switched to a 24 inch Screamin' Eagle Harley muffler with baffles intact.
This has a much lower grumbly sound, and if you punch out the baffle the sound changes again.
If you use a shorty Harley muffler the pitch changes significantly.

I have heard plenty of stock Datsun 1500's and none of them sound like the one in my car. I suspect the SU carbs also effect the output sound, at least I noticed a difference in sound when I switched from the Hitachi downdraft to the twin SU's.

My car doesn't sound exactly like any other car really, it's unique - people know it's me coming from a ways off.

So changing things up a bit can produce a sound tuned to your likes, but I think it would be difficult to get to sound just like a stock spridget.
Maybe it would be a little more spridgety if you used a small pipe leading to a very constrictive muffler, but that would effect performance badly.

 

[mightymidget]

have you got a link to a video with sound?

 

[Guest]

The a15 has 8 ports. .

So does the Spit 1500. Mine sounds like (IMO) a Spridget should. it doesn't sound like a Datsun. Is the firing order different b/w Dat and Spit?

 

[Billm]

1-3-4-2 for the Datto

 

[Guest]

Hmmmm, the same. Well, then it must be the oil leak...

 

[58Custom]

Hmmmm, the same. Well, then it must be the oil leak...

Yup. The lack of a positive rear main seal allows the natural resonance of the Austin engine to eminate at full throat.

 

[racingenglishcars]

I think a lot would have to do with the valve timing. Cams are usually profiled from many many tests on a test engine. Therefore what profile works well on one engine doesn't work well on another. Thus the unique sounds.

 

[RickB]

have you got a link to a video with sound?

I don't believe that I do have that - but it wouldn't be hard to do - I'll see about making that happen soon and post a link.

 

[RickB]

have you got a link to a video with sound?

I don't believe that I do have that - but it wouldn't be hard to do - I'll see about making that happen soon and post a link.

Lets try it, I made a few short videos with my phone the other day and just got around to converting them to a reasonable size.

https://picasaweb.google.com/lh/photo/HJc3wqs0cZ2Zxbf238Bz6g?feat=directlink

https://picasaweb.google.com/lh/photo/7EF-TekHprH_R4j9SfqVoQ?feat=directlink

https://picasaweb.google.com/lh/photo/PqdTjpkYP0ytbm8tDm8D0Q?feat=directlink

 

[ghostgrunt]

The in-car sounds great!

Jim

 

[jlaird]

I like it, sounds great.

 

[Pythias]

I've been wondering what that "Screaming Eagle" muffler would sound like.. THANX!

 

[RickB]

It's funny the times it really gets loud and the times it seems quieter are very different compared to my old quad monza setup.
For instance there's a hill leading out of the valley here up to the freeway, when I hit that hill in 4th gear at about 35mph the thing just gets growley.