Which engine would you choose for a swap?

[MrBurgundy]

expand on this, i'm curious to hear it

[djjerme]

Which of these 3 engines would you choose for a swap? M54, M42/M44 stroker, or S14

Yup. It’s a little old school mentality when everyone “knew” that camel hump fuelie heads were worth 30+ horsepower. Back when people would walk around claiming 300hp but put it on a dyno and you’re lucky if you threw down 150.

Somewhere I have the dyno results of the MM 2.5 Rally S14 here in PDX.


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[varg]

I don't trust anything MM posts for hp. I have yet to see a MM engine actually put down on a dyno what they claim.

I don't know anyone who has a Metric Mechanic engine but it usually seems that engine builders can't stop crowing about dyno results and proudly display their SAE gross engine dyno plots and MM refuses to publish anything but numbers.

[nando]

Yeah, I don't have an MM engine, but I built mine with their parts - it's been reliable, but the HP claims are BS.

[digger]

I don't trust anything MM posts for hp. I have yet to see a MM engine actually put down on a dyno what they claim. Know of two local guys that are still bitter about their MM motors actual numbers.

truth spoken

[djjerme]

Metric Mechanic 2100 Rally

I don't trust anything MM posts for hp. I have yet to see a MM engine actually put down on a dyno what they claim. Know of two local guys that are still bitter about their MM motors actual numbers.

So long story short - M54.

[Andrew325is]

Alloy block M52s are extremely rare here.

Not really. There are 2 pages of listings for Z3 2.8 engines on car-part.com at auto wreckers around the country and 7 with under 100k miles. Plenty of salvage part cars too at the various auctions.

[Andrew325is]

Why the M54> the M52? Isnt the M52 real easy to swap?

That's a good point. The M52 is right in there. Pretty close to the stock S14 by the numbers. I guess I should have just labeled that poll option as "Alloy block M5x".

[Andrew325is]

We seem to be getting engine sound and exhaust sound mixed up. The exhaust sound on the built M20 in that video sounds awful. Maybe the engine sounds lovely, but you can't hear it becomes it's enveloped in the exhaust sound. IMO the S54 engine sound is very nice and that's what I was referring to, but I've heard very awful sounding exhaust on S54 cars. I can't hear the M20 much in my car. It's not a loud engine the way it is and combined with sound deadening and the stock exhaust it doesn't sound like much, so I agree there that it sounds lovely (or rather the lack of annoying exhaust sound is lovely.)

The sound of that race S14 is beyond lovely.

[nando]

Alloy block M52s are extremely rare here.

[digger]

alloy block m52 with S52 crank would probqbly be acceptable. Still has the povo spec vanos though

[nando]

Because it's heavy, underpowered and really old. If you're fine with a 200k junkyard swap, good for you..

[Slybeanx]

Why the M54> the M52? Isnt the M52 real easy to swap?

[Motheye99]

Race s14's are atleast 25-30k. And p60 is non existent, you'd be better off getting a Juud V8.

https://youtu.be/cyqJxXolico

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[digger]

most s54 where you hear the exhaust sound rubbish, the S52 even worse, i am not sure the m20 is any better TBH. all of them sound better with quieter exhausts.