Insane performance crank hub?

[Msm1984]

About 7k miles done with insane crank hub fbo stage 2 and at times full e85. zero issues. Insane crank hub is the best option for the money in my opinion

Also, this video shows why the cbc alone wont work

[GreenGoblin]

Originally Posted by Msm1984

About 7k miles done with insane crank hub fbo stage 2 and at times full e85. zero issues. Insane crank hub is the best option for the money in my opinion

Also, this video shows why the cbc alone wont work

I remain skeptical. Who is to say these pins will not just shear off at high rpm, or during a kick down. I cannot even find one shear stress chart or any real engineering data besides someones "word". Please link if u have any.

[chetrickerman]

Originally Posted by GreenGoblin

I remain skeptical. Who is to say these pins will not just shear off at high rpm, or during a kick down. I cannot even find one shear stress chart or any real engineering data besides someones "word". Please link if u have any.

Probably the fact that the 2 pin style hubs are proven to be secure at 1150+ whp, but sure, be skeptical. No other hub has been proven at that power level.

[GreenGoblin]

Originally Posted by chetrickerman

Probably the fact that the 2 pin style hubs are proven to be secure at 1150+ whp, but sure, be skeptical. No other hub has been proven at that power level.

So no engineering data I'm guessing?

Shear Stress testing??????

Your only argument is "hasn't broken for me" === "proven"

[chetrickerman]

Originally Posted by GreenGoblin

So no engineering data I'm guessing?

Shear Stress testing??????

Your only argument is "hasn't broken for me" === "proven"

Your take is that parts are only proven when engineering data is supplied? Interesting.

BTW, If a part hasnt broken at 1150+ whp, yes that does prove how effective it is......

[GreenGoblin]

Originally Posted by chetrickerman

Your take is that parts are only proven when engineering data is supplied? Interesting.

BTW, If a part hasnt broken at 1150+ whp, yes that does prove how effective it is......

"proven"

https://f80.bimmerpost.com/forums/sh....php?t=1754512

If 2 pin is so effective, why move to 4 pin?

[chetrickerman]

Originally Posted by GreenGoblin

"proven"

https://f80.bimmerpost.com/forums/sh....php?t=1754512

If 2 pin is so effective, why move to 4 pin?

That was proven to be an issue with the installer, not the hub itself.

Its weird that actual real world results dont prove the legitimacy of a product to you. Enough time wasted on this.

[MisterF80M3]

Originally Posted by chetrickerman

That was proven to be an issue with the installer, not the hub itself.

Its weird that actual real world results dont prove the legitimacy of a product to you. Enough time wasted on this.

You know that wasn't the first time the 2-pin Maximum PSI spun right? There were multiple. That is why they switched to 4-pin.

[chetrickerman]

Originally Posted by MisterF80M3

You know that wasn't the first time the 2-pin Maximum PSI spun right? There were multiple. That is why they switched to 4-pin.

Incorrect. I spoke with the person who made the design change to 4 pins. The only reason they went with 4 pins is because they had the opportunity to change the design after MaxPSI discontinued the hubs, and the machine shop felt that 4 pins would make a good design even stronger.

Any pinned hubs that spun were from installation error. Its not difficult to see and discern for yourself if you have any engineering or engine building experience

[SflBimmer8484]

I have tons of customers with the Insane crank hub 2 and 4 pin version and a personal friend that owns a shop with over 50+ insane crank hub installs with 0 issues. I wouldn't be worried about the amount of pins but if 4 makes you feel more confident go with it. https://insanecrankhub.com/products/...iece-crank-hub

[Demar202]

What are some signs the crank hub is done for?

[SflBimmer8484]

Originally Posted by Demar202

What are some signs the crank hub is done for?

Both of my friends that slipped the hub had no signs before it failed unfortunately.

1. 2018 m4 dct running full e85 tune for 3 weeks before the car just threw lights coming to a stop.

2.2020 m2c 6mt 1 week after getting a stage 2 tune 93 octane.

[mike@x-ph.com]

Originally Posted by Demar202

What are some signs the crank hub is done for?

Unfortunately, you won't know till its too late

[nbennettksu]

Originally Posted by Demar202

What are some signs the crank hub is done for?

Car runs like a tractor. Mine did.

Insane hub for 14 months, 7k miles, E85 and plenty of 40-130. Not to mention track days.

[fivaxis]

Originally Posted by Andrew@ActiveAutowerke

Both of my friends that slipped the hub had no signs before it failed unfortunately.

1. 2018 m4 dct running full e85 tune for 3 weeks before the car just threw lights coming to a stop.

2.2020 m2c 6mt 1 week after getting a stage 2 tune 93 octane.

Let me take a guess, both of them had no CBC.

[CT92F80]

Anyone have this issue with their crankhub???

[MR RIZK]

Originally Posted by CT92F80

Anyone have this issue with their crankhub???

The only case I have seen is the belts walked and wrapped around the damper and subsequently sheared the bolts.

[Ilvez]

I am sure Insane is a good product but would someone mechanically smart comment why is the Instane sprocket profile visibly different from OEM, SSR and RK Autowerk hubs and what risks it involves?

Basically SSR and RK Autowerks hubs sprocket profile matches almost identically with the OEM one, while Insane is different.

Originally Posted by Andrew@ActiveAutowerke

I have tons of customers with the Insane crank hub 2 and 4 pin version and a personal friend that owns a shop with over 50+ insane crank hub installs with 0 issues. I wouldn't be worried about the amount of pins but if 4 makes you feel more confident go with it. https://insanecrankhub.com/products/...iece-crank-hub

[TheMaster1971NL]

I have the 2 pin version for 10K miles now, no problems or issues.

[mike@x-ph.com]

Originally Posted by TheMaster1971NL

I have the 2 pin version for 10K miles now, no problems or issues.

[SflBimmer8484]

Originally Posted by Ilvez

I am sure Insane is a good product but would someone mechanically smart comment why is the Instane sprocket profile visibly different from OEM, SSR and RK Autowerk hubs and what risks it involves?

Basically SSR and RK Autowerks hubs sprocket profile matches almost identically with the OEM one, while Insane is different.

I'm no engineer so I cant speak to why this is but, all of the people I know with it have had zero issues and it looks like the forum shows nothing but the same.

We will continue to install and recommend this hub to our customers.

[thestimp]

Originally Posted by Ilvez

I am sure Insane is a good product but would someone mechanically smart comment why is the Instane sprocket profile visibly different from OEM, SSR and RK Autowerk hubs and what risks it involves?

Basically SSR and RK Autowerks hubs sprocket profile matches almost identically with the OEM one, while Insane is different.

Mechanical Engineer : Pilot bore sprockets like the crank hub are reliant on the collective teeth to keep continuing rotational force, the size of the teeth is dependent on the chain used or vice versa. The difference in the sprocket width/dimensions is negligible if the overall profile is fitting to the chain. Its up to the machine shop CNC process to determine the optimal tooth size for manufacturing while keeping the needed tooth size for application.


tl;DR look is different because different people machined it and tolerances were probably laxed because the profile was fine either way.