Punkin spice is in a bad way.

"CalzoneGolem" (calzonegolem)
10/28/2020 at 10:00 • Filed to: punkin spice, forest

On our 11th anniversary MrsGolem’s 2020 Soul’s ivt transmission started surging on the highway and eventually revved up like it was stuck in 1st. We had a lovely day stuck on the side of the highway failing to get a tow from AAA then eventually getting one.

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The car got dropped off at the dealer and we went home. The next day we got told the car was good. It had simply needed a software update. While this didn’t make any sense to me we went and picked up the car anyways. It drove home without issue, but the next day the issue came back. Not terribly surprising.

Back to the dealer and a rental Crosstrek was issued to my wife. I was looking forward to giving the Crosstrek a thrashing when the dealership called MrsGolem to say the car wasn’t going to be fixed until mid- November they had ordered some parts. What parts you ask? Well I asked the same thing and MrsGolem doesn’t know and moreover doesn’t care.

The dealer told us the car was safe to drive and won’t damage itself so MrsGolem is taking Forest and I’m driving Punkin Spice since I’m working from home and just doing school runs for LittlestGolem.

DISCUSSION (28)

Who is the Leader - 404 / Blog No Longer Available > CalzoneGolem
10/28/2020 at 10:50

Redlining it doesn’t damage the car? Well okay then. . .

*takes it to the track*

CalzoneGolem > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 10:54

Just bounce it off the limiter nbd.

ShrimpHappens, née WJalopy > CalzoneGolem
10/28/2020 at 11:12

Well that’s why the limiter’s there!

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 11:14

Concept: an engine that has fixed RPMs, power output is controlled by variable stroke

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 11:19

Too easy, needs variable bore.

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 11:21

Variable intake mass air volume, aspiration entirely through a VNT turbo.

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 11:22

Hahahaha, no, still too simple. Needs a supercharger driven off an electric motor powered by a wankel rotary generator for reasons.

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 11:25

Two stroke with supercharger aspiration, “push to pass” style WOT power bump with a turbo.

Snuze: Needs another Swede > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 11:29

This is physically possible, but not advisable for a huge number of reasons. Changing stroke changes compression ratio which leads to all sorts of stuff stuff like weird, hard to control power curves and awful thermal efficiencies.

Future next gen S2000 owner > CalzoneGolem
10/28/2020 at 11:30

The dealer told us the car was safe to drive and won’t damage itself....

Something smells fishy.......

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 11:44

Two stroke diesel, you mean. With the ability to switch on demand to four stroke LPG.

Has there ever been a diesel rotary? We need to fix that.

I like cars: Jim Spanfeller is one ugly motherfucker > Snuze: Needs another Swede
10/28/2020 at 12:00

It wouldn’t necessarily change compression ratios. If you’re going through all the trouble of designing a variable stroke engine with enough variation in stroke to have that be the source of power output modulation, you could probably go through the trouble of having the piston travel stop at different points to maintain a static compression ratio.

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 12:01

Wait til you hear about the Napier Deltic...

Highlander-Datsuns are Forever > CalzoneGolem
10/28/2020 at 12:16

The dealer told us the car was safe to drive and won’t damage itself

Tell them you are driving to Florida next week and hope it will make it.

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 12:39

Napier Deltic engine is a British opposed-piston valveless, supercharged uniflow scavenged, two-stroke diesel engine u sed in marine and locomotive applications, designed and produced by D. Napier & Son. Unusually, the cylinders were disposed in a three-bank triangle, with a crankshaft at each corner of the triangle.

Wow

Kinja'd!!!

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 12:48

It’s the second weirdest piston-based ICE I know of.

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 12:53

The first?

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 12:56

I can’t find the name of it, but the concept was basically this:

Three cylinders, two with small pistons, one with a large piston. The small pistons had a longer stroke than the large piston. In the small bores, air and fuel are mixed and pressed through a channel into the chamber of the large bore. The large piston and the two small pistons were less than 180° out of phase with each other, the large piston breathing through the small pistons as if it were a two stroke, but intake gasses were pre-compressed by the small pistons. Essentially, you had a piston compressor supercharger.

The two small cylinders may have been out of phase with each other, each making a compression stroke once per two rotations of the crankshaft (like a four stroke) while the large cylinder made a compression stroke once per rotation, like a two stroke. It was a weird engine.

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 13:02

That hurts my brain. I just. . . that’s a way to increase compression but like is that the best way? I don’t think so. Wouldn’t that be incredibly inefficient for at best marginal gains in performance compared to a similar two piston two stroke? Because those two compressor pistons are burning gas too and don’t have the high compression to make them efficient.

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 13:06

It was a super early ICE. There’s a reason we don’t do that anymore. It wasn’t efficient enough to be useful.

The two compressor pistons don’t use fuel- fuel was only consumed by the large “power” piston, which drove the compression of the two other pistons. So the power losses of the compression pistons was probably at least equal to if not the same as the gains of the added compression.

Closest thing I can find is the “Eisenhuth Compound Engine”, which is the opposite.

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 13:12

Still trying to figure out exactly what is going on in this scenario. It seems like a lot of complication for a not very useful package. And wouldn’t that design also be significantly less efficient at lower RPMs?

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 13:13

I have no idea.

I edited my comment above, I might have been thinking of the Eisenhuth Compound Engine, which is the opposite- small cylinders combust, large cylinder expands.

That’s an extension of the concept of a compound steam engine, which actually was more efficient than a traditional single compressor steam engine.

Who is the Leader - 404 / Blog No Longer Available > I like cars: Jim Spanfeller is one ugly motherfucker
10/28/2020 at 13:23

I don’t have the brain for the technical details of the mechanical processes to fully picture what exactly is going on there.

I like cars: Jim Spanfeller is one ugly motherfucker > Who is the Leader - 404 / Blog No Longer Available
10/28/2020 at 13:26

Basically, more work is exerted through further exhaust gas expansion. If you idle a car with its traditional four stroke motor, then walk around to the exhaust, you can feel pressure from the exhaust gasses escaping, right? Pressure/heat can be used to produce more work. That’s all this is.

CalzoneGolem > Future next gen S2000 owner
10/28/2020 at 13:40

Yeah that’s why I’m driving it instead of MrsGolem.

CalzoneGolem > Highlander-Datsuns are Forever
10/28/2020 at 13:41

They’d be like, “Call us if there is an issue.”

Longtime Lurker > CalzoneGolem
10/28/2020 at 15:35

Could you call the dealer back and ask what parts they ordered?

CalzoneGolem > Longtime Lurker
10/29/2020 at 06:57

Most certainly. All I know is they said it was going to be a 4.5 hour job and it was covered by warranty.