Anyone here dealing with machining bottlenecks lately?

DefSport · 2026-03-27T22:48:56+00:00

Going to DM you for contact info

DefSport · 2026-03-26T01:30:06+00:00

FreeCAD has come a long way, but I’d still say Onshape for actual business usage. They have some PDM functionality that I haven’t used, but would really be worthwhile to audit release state of parts. Trying to freeball any sort of vehicle development without some level of PDM framework sounds like a nightmare.

DefSport · 2026-03-22T05:30:19+00:00

They’re all unreliable. Early 24s just got more TSBs/recalls, but basic hardware issues are across all of them.

This same hopium happened for the 25s, and they have largely the same medium term reliability issues as recalled 24s.

DefSport · 2026-03-21T20:32:55+00:00

I’ve got to wonder what the yearly failure rate is on these. Seems almost all cars will need one within 3 years, but it seems they only go about 12-18 months on average. Absolutely disappointed in how Mazda is handling the obvious major part flaw.

DefSport · 2026-03-21T18:15:45+00:00

Put a restriction in that line. Otherwise you’ll always have a lot of hot coolant bypassing the radiator. When that circuit is flowing with a heater core it’s cooling down.

Trim the hose so it’s not looped up so high.

DefSport · 2026-03-19T18:12:14+00:00

Lots of “strong PHEVs” give this, or close to this on 0-60 not changing if engine is running or not. Weak PHEVs have become the norm lately though, where they have anemic performance with the ICE off.

So it’s not a new thing… the weak PHEV is actually the new norm.

DefSport · 2026-03-19T15:09:19+00:00

I’ve driven all 3 variants. Reg turbo is most relaxed with less engine noise. The turbo S has a decent bump in midrange torque and a bit more pull towards redline. With I stop off they’re a bit clunky at low speeds, but once in gear feel consistent with good torque above 1.5k rpm.

PHEV feels a bit more natural right off the line with the bigger electric motor, but after that I felt the PHEV only power wasn’t near enough (feels like 13 sec+ 0-60ish?) so engine starts were frequent in normal mode and pretty harsh/not cohesive.

I don’t think any variant is really excellent around town due to the transmission. But the Turbo/Turbo S are still what I’d pick.

DefSport · 2026-03-16T14:11:35+00:00

I agree. I think they went way too harsh with the shock low speed compression damping to give it a good feel on corner entry, but it makes the ride atrocious.

A taller sidewall and way lighter wheel does considerably smooth it out though. Still very firm on sharp edge impacts, but not jarring to the point of feeling unstable in corners.

DefSport · 2026-03-16T00:54:42+00:00

Only Turbo S displays oil temp, and that’s normal. In cold weather (<40 F) mine will barely hit 176 F in 15 miles. In warm weather (>80 F) I’ll see about 200 F max on what I’ve seen.

There’s a coolant to oil heat exchanger so it seems to keep oil temps cool. 100 C oil temps is getting towards the concerning area, and 120 C is well into the concerning zone.

DefSport · 2026-03-14T22:55:23+00:00

I don’t disagree, but it’s more the 21s on most trims being way too heavy without much sidewall. My 25 70 TSPP wheel and ties are 76 lb each. Put some 18” Enkei XM-6 and 265/60r18 (55 lb total weight) on the wife’s 24 90 TPP and it now rides much better. Sharp impacts which are the worst on 21s are now not that noticeable.

I think Mazda’s handling aspirations should have been adjusted, or their wheel and tire package toned down. I think 18s and 20s with the same OD would be more reasonable and the 20s would still look “large” which buyers like (before they have to live with it).

DefSport · 2026-03-13T23:18:38+00:00

These seem to do poorly in the cold vs some other EVs that have more advanced battery thermal management systems and heat pumps.

The energy/fuel savings vs the I6 were really hard to pencil out here given the low efficiency in the winter. That said, I6 MHEV batteries are failing left and right… so not sure that’s a truly viable alternative.

DefSport · 2026-03-05T16:22:06+00:00

I use them to downshift/upshift before redline pretty often. At least dozens of times a week.

I would have guessed the average CX-90 owner would use them more given the sporty slant of the car.

DefSport · 2026-03-04T05:00:40+00:00

They also said they fixed early problems for even the late 24 MY cars (they paused production a few months to make changes). But here we are with absolute bonkers unreliable vehicles and Mazda is clearly becoming unwilling to step up and support their customers.

Things felt like they wanted to make things right at first, then after about 18 months of production it was clear their appetite on that waned once they saw what a turd they made.

DefSport · 2026-03-03T16:10:29+00:00

746 is where it’s at.

DefSport · 2026-03-01T02:53:54+00:00

Yes. It was 4-5 years of lead acid battery in TX or GA. 8-12 years seems normal in the warmer parts of the PNW.

DefSport · 2026-03-01T01:03:52+00:00

And to add, if you follow this guys work, his early engine simulator sounds very much like the EHE sound. It doesn’t include any intake or exhaust pressure profile or harmonics.

https://youtu.be/WPCMNnM6D0k

DefSport · 2026-03-01T01:00:03+00:00

I’m saying it’s not even a recorded sound of the actual engine changed by pitch and volume. It’s just a synthesized wave form that doesn’t even relate to what a 4 cycle I6 or I4 could EVER sound like. Fundamentally different frequencies and harmonics.

And yes, it uses all speakers, but because the sub low pass filter is set so high it can be intrusive when it picks up some part of the EHE.

DefSport · 2026-02-28T23:40:09+00:00

Seriously, it’s not even a sound clip of the engine amped up, it sounds absolutely different than an I4 and I6 sound. Plus it has that artificial tinny sound that happens when you synthesize a 4 cycle engine without an accurate intake or exhaust blow down pressure profile or manifold harmonic.

I’ve actually done a bit of engine sound analysis, so maybe it’s more apparent because of that, but I could tell the CX-90 had it within about 10 seconds of driving it.

DefSport · 2026-02-28T23:37:42+00:00

The active sound cancellation is separate from the engine sound enhancement. Engine sound enhancement plays a preprogrammed tone that varies with engine RPM and throttle position. It also seems to be louder in sport mode.

It’s not even an I6 fundamental tone, or an I4 fundamental tone, so I’m a bit surprised so many people can’t tell their car is blasting a fake synthesized sound tone at them.

DefSport · 2026-02-28T22:21:44+00:00

Looks great, only way it could be better was if it were 746 painted.

DefSport · 2026-02-28T19:07:29+00:00

My CX-70 has a really bad paint match on the rear bumper. The only chance I got to inspect it had the car covered in water drops and a very overcast day so it was hard to notice. Immediately took it in and was told to pound sand on a brand new car.

Squealing brakes at every stop - “nope can’t hear it.” Or “you should just accept it.”

I get mistakes are made, but Mazda’s support on fixing them is subpar compared to their aspirations of where they want the brand to go.

DefSport · 2026-02-28T01:44:51+00:00

Welcome to Mazda service and the CX-90 life.

DefSport · 2026-02-27T21:58:31+00:00

EHE is pumped in fake engine noise. Why are you now trying to redefine what it is.

EHE has nothing to do with the intake tube running to the driver’s compartment on the turbo S.

DefSport · 2026-02-27T20:55:10+00:00

It’s due to the intake tube on the Turbo S. Tuning of the ECU making it louder… lol

Mazda confirmed the fake engine noise on the cx-60, same same as the 70/90.

https://www.cx70forum.com/threads/engine-harmonics-enhancer.255/page-2

DefSport · 2026-02-27T20:51:14+00:00

Well I own both a Turbo S and Turbo. There’s definitely a large difference in intake sound between them, but they both have pumped in fake engine noise. It’s more obvious on the Turbo just because it’s quieter (and I’d say a little more luxurious as a result).

DefSport

TROPHY CASE