make 225 sound better?

[1WildRT]

Sound better?

 

[junkyardhero]

 

[Dartswinger70]

Nothing but a V8 sounds good if we are being truly honest. Next best thing is the big bore piston aircraft engines of WW 2

 

[timk225]

Nothing but a V8 sounds good if we are being truly honest. Next best thing is the big bore piston aircraft engines of WW 2

Nissan's RB26 in the Skyline is one of the best sounding straight 6's I've ever heard. But it has a shorter stroke and revs a lot higher than a Slant 6.

 

[AJ/FormS]

1-5-3-6-2-4-1-5-3-6-2-4-1-5-3-6-2-4-1-5-3-6-2-4,
it's a sewing machine.
I bought my first slanty car in about 74.
Within a few months, there was a junkyard 340 under the hood; with fenderwell headers, 2" duals, ~6 ft of straight pipes, a pair of long Thrush straight-thrus, and more straight pipes, under the axle, out to the back.
No more sewing machine for me.
V8 cadence. Halleluyah.

 

[RustyRatRod]

1-5-3-6-2-4-1-5-3-6-2-4-1-5-3-6-2-4-1-5-3-6-2-4,
it's a sewing machine.
I bought my first slanty car in about 74.
Within a few months, there was a junkyard 340 under the hood; with fenderwell headers, 2" duals, ~6 ft of straight pipes, a pair of long Thrush straight-thrus, and more straight pipes, under the axle, out to the back.
No more sewing machine for me.
V8 cadence. Halleluyah.

Let's see what you have now.

 

[RustyRatRod]

6 ft of straight pipes,

Where could you fit 6 ft if straight pipe? Do you mean 2 3 ft sections? Cause 6ft ain't fittin under an A body.

 

[TF360]

Nothing but a V8 sounds good if we are being truly honest. Next best thing is the big bore piston aircraft engines of WW 2

Really, my Slant sounds just like a V-8 at idle and cruise. When you floor it, that six sound shows up.

 

[1WildRT]

Really, my Slant sounds just like a V-8 at idle and cruise. When you floor it, that six sound shows up.

You go ahead and & tell yourself that.... 75% of the people will probably believe you... But people who actually use their ears know better...

 

[TF360]

You go ahead and & tell yourself that.... 75% of the people will probably believe you... But people who actually use their ears know better...

Well here's the thing. I'm sure you never had a Slant with Headers and the right exhaust combo WildRT. Have you? Haha, I already knew that.

 

[1WildRT]

Well here's the thing. I'm sure you never had a Slant with Headers and the right exhaust combo WildRT. Have you? Haha, I already knew that.

I know a local guy with that combo & while it does sound better than most slant sixes it doesn't sound like a V8... He also has a 4bbl & a cam..

I currently own a car that started life with a slant... I fixed it back in the 80's & have never regretted it..

 

[AJ/FormS]

Where could you fit 6 ft if straight pipe? Do you mean 2 3 ft sections? Cause 6ft ain't fittin under an A body.

Maybe not under your A-body.

 

[mopowers]

What's the point of even trying to get a slant to sound like a V8? If you want a V8 that bad, just do an engine swap.

At rpm, it'll still sound like a slant regardless.

 

[RustyRatRod]

Maybe not under your A-body.

Yours either, since you don't have one.

 

[MidnightSwinger]

What's the point of even trying to get a slant to sound like a V8? If you want a V8 that bad, just do an engine swap.

At rpm, it'll still sound like a slant regardless.

I don’t think that was the OP’s intention. He just wanted something that sounds “better”, which is understandable.

The slant has two very annoying exhaust characteristics; drone and buzz. Both can be remedied with proper exhaust sizing/muffler selection/resonator combo…or a turbo.

For a near stock setup, I like 2.5” head pipe, 20” case muffler(not a turbo style) 2.25” tail pipe and 18” bullet style resonator before the bumper.

This makes for a decent idle, no drone and reduces the buzz to a deep, tuned sound. A lot of $$$ trial and error have gone into finding this combo, and lots of lost $$$ on an exhaust system that sounds terrible.

 

[RustyRatRod]

I don’t think that was the OP’s intention. He just wanted something that sounds “better”, which is understandable.

The slant has two very annoying exhaust characteristics; drone and buzz. Both can be remedied with proper exhaust sizing/muffler selection/resonator combo…or a turbo.

For a near stock setup, I like 2.5” head pipe, 20” case muffler(not a turbo style) 2.25” tail pipe and 18” bullet style resonator before the bumper.

This makes for a decent idle, no drone and reduces the buzz to a deep, tuned sound. A lot of $$$ trial and error have gone into finding this combo, and lots of lost $$$ on an exhaust system that sounds terrible.

That's what I was worried about with mine. Over 10:1 with headers and a big cam can make for some serious noise in a slant 6, but it turned out really nice.

 

[mopowers]

I don’t think that was the OP’s intention.

Oh I know. I was just referring to the guy claiming his slant sounds like a V8. I shoulda made that more clear.

Some slants certainly sound great, especially at idle, but none sound like a V8. At the same time, if you're a slant guy, why would you even want that? Embrace the buzz.

 

[Johnny Dart]

Clifford headers, single 2.25" exhaust, 40 series Flowmaster dumped before the rear axle. Loud ? Yes. Drone ? Maybe. Really don't care. Sounds like a pack of angry hornets, and I love every second of it.

 

[MidnightSwinger]

Oh I know. I was just referring to the guy claiming his slant sounds like a V8. I shoulda made that more clear.

Some slants certainly sound great, especially at idle, but none sound like a V8. At the same time, if you're a slant guy, why would you even want that? Embrace the buzz.

Im a slant guy and I hate the buzz lol it’s definitely a negative IMO but not insurmountable.

I will also argue that not all V8’s sound good. Flat head, GM 350, and the Yamaha V8 all come to mind.


But we all know Mopar Small and Big blocks are the best sounding V8’s ever produced. Thank Chrysler.

 

[volaredon]

I've always thought 6 into 6, with the pipes rearranged to exit in firing order, exiting under the driver rocker panel would sound dope AF at a slow idle

"Dope af".... Huh? Talk English please.

There's nothing like the sound of an inline 6 especially a slant 6.... And nothing currently available has "that"sound which is cool in itself

 

[volaredon]

At rpm, it'll still sound like a slant regardless.

What's wrong with that

 

[timk225]

Have there been any comparisons made as to the effect on exhaust sound with the only variables being a factory exhaust manifold / dutra duals / some kind of header? Would a stock exhaust manifold reduce or change some of the drone / buzz that a set of headers might be making? I know a turbocharger would change it significantly, but installing a turbo is a pretty big project.

 

[mopowers]

What's wrong with that

Nothing

 

[TF360]

I'll get some video of my V-8 sounding Slant, and then we will see what you guys think. Car is in storage, so it will be a couple weeks.

 

[Oldiron440]

you need all five for the all the hp sound!