Ive got a Datsun L28 I'm building, stock cam for now, and I already have this set of long tube headers from MSA. They're set up as two sets of three that merge into a single Y. I had seen videos of people experimenting with true dual setups on four cylinder engines, and it dramatically changes the sound, and I wonder what it would do to a straight six. I wouldn't do completely separate pipes though, I was thinking about an H pipe in the middle and a resonator and muffler for each pipe. I haven't seen this exact setup anywhere and am wondering why? How bad do you think it would affect scavenging? Do you think it could sound interesting or sound like garbage? I'm tempted to just tac weld some pipe together just to find out. The reason I'm interested in this idea at all is because when I installed my headers, my ground on my welder failed, so I impatiently drove the car to a friends shop to have the down pipe made, and having the two exits dump right at my feet sounded insane. I've always wanted to replicate it in a proper way.

raped by corvette, brown dog

>>28510924 (OP)
>I haven't seen this exact setup anywhere and am wondering why?
Is there enough room for that? It’s dark so I’m not going to check my 280zx undercarriage to be sure.

>Do you think it could sound interesting or sound like garbage?
Garbage. Wait ‘till you hear an L series engine without a muffler. It’s like a worse stereotype of a fart can Honda.

>>28510939
>Is there enough room for that?
I believe so, yes. I have had mine on the lift many times and looked at it carefully. It would be a tight fit for sure though.

>Garbage.
Without a muffler, yes, of course. That's why I said I would have a resonator and muffler for each pipe. I'm not building a rice machine.

from what i've seen, the 90s bmws are apparently a true dual exhaust system (i believe they share one big resonator or muffler, but the internals are still baffled at least somewhat to keep things split) so make of that what you will

>>28510924 (OP)
You want 1-3-5 into one and 2-4-6 into one. Then, a two into one, and some reduces in between each. No muffler. Thank me later.

>>28511015
>1-3-5 into one and 2-4-6 into one
took me a while to realise you were talking about the cylinder numbers

>>28511087
I honestly don't read all that shit (by op). Just "skimmed I6. Exhaust noise". But slap an 2-2 (X pipe) in there as well. Go ahead and make it asymmetric. Scavenging and resonance will happen whether you like it or not. Tuna isn't real. Just send it.

>>28510924 (OP)
>an H pipe in the middle
That's not true duals then. And it'll significantly effect the noise.

>>28510958
>(i believe they share one big resonator or muffler
DO WORDS MEAN NOTHING TO YOU FUCKING CAVEMEN

Also tuning for sound instead of power is big gay, stop being a fag.

>>28511166
u forgot this
>but the internals are still baffled at least somewhat to keep things split

>>28510924 (OP)
It'll sound like ass. Keep single exhaust.

>>28511015
Retarded post.
>L28 firing order : 1,5,3,6,2,4

>>28510924 (OP)
Its been done a hundred thousand times on The Big 6.
Look up forums for Ford 300/4.9

>>28510924 (OP)
>i6 with duals
Like this.
Two 3 to 1 manifolds, dual pipes running back into a 2 in 2 out primary muffler, then one resonator on each pipe then a 2 in 2 out back box.

>>28514277
bmw manual swap anon? and yea this exhaust was what i was talking about >>28510958

>>28510924 (OP)
For scavenging you'll want to merge them. Sound-wise you'd basically be running a pair of I3s in parallel, go read some Giulia Quadrifoglio reviews to see what people think of that.

dont do it you motherfucker true duals sound like shit, just put a y pipe single.

>>28510927

>>28510924 (OP)
https://www.youtube.com/watch?v=ivwjB4Z_GfA
Watch this all the way through and make sure this is really what you want.

>>28516163
those are cherry bombs though. everyone and their grandma knows they're loud as fuck

>>28510924 (OP)
>dual exhaust
>Not running six straight pipes

>>28516414
Yeah but if it was loud as fuck and it also sounded sick you wouldn't be saying that

I also saw this while I was looking around for that other clip and what did I see on the exhaust tip in the corner?
https://www.youtube.com/watch?v=A5Pll3-hyNU
>RBP
Fuck's sake

>>28514494
>bmw manual swap anon?
yes.

>>28516439
i would because generally being obnoxiously loud just sounds shit regardless. if the guy in that vid had put in a stock muffler or flowmasters that are a bit louder than stock it'd sound pretty nice
>>28516681
nice, thought i recognised the hoist. would love to have a hoist. still need to clear all the shit out in my garage though

>>28510924 (OP)
Scavenging would go to shit, and it'd probably sound like a trumpet. You'd want pretty small tubes to match the flow of your new 3cyl exhaust groupings. H pipe for maximum tone.

>>28511168
but it's not 100% split so not a true duel, more like a 80% duel