Another Blown JB4 Motor

Kraftwerk AG · 10-21-2018, 01:55 AM

For those of you guys still running the JB4, be careful! https://www.6post.com/forums/showthread.php?p=23877061

Or a BM3 https://f15.bimmerpost.com/forums/sh...2#post23879682 I don't believe the BM3 applies to the E70. But for those present/future owners who may consider modifying...

protecon · 10-21-2018, 05:21 PM

Quote:

Originally Posted by DeeO

For those of you guys still running the JB4, be careful! https://www.6post.com/forums/showthread.php?p=23877061

Guy has shop install JB4.
8 days later, reports engine has seized.

I've been running my JB4 for 777 days, including numerous track events with no issues.

Kraftwerk AG · 10-21-2018, 07:23 PM

Quote:

Originally Posted by protecon

Guy has shop install JB4.
8 days later, reports engine has seized.

I've been running my JB4 for 777 days, including numerous track events with no issues.

That has to give you peace of mind. Ever do any dyno time to fine tune it?

10-21-2018, 01:55 AM	#1
Kraftwerk AG Major 460 Rep 1,025 Posts Drives: Mein F Fünfundachtzig Einhorn Join Date: Mar 2017 Location: RIP Florian Schneider-Esleben iTrader: (8)	Another Blown JB4 Motor For those of you guys still running the JB4, be careful! https://www.6post.com/forums/showthread.php?p=23877061 Or a BM3 https://f15.bimmerpost.com/forums/sh...2#post23879682 I don't believe the BM3 applies to the E70. But for those present/future owners who may consider modifying... Last edited by Kraftwerk AG; 10-21-2018 at 09:52 AM..
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