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      04-02-2020, 05:27 PM   #969
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Quote:
Originally Posted by cauQazn View Post
Has anyone had to replace their belt? Reached out to Harrop they said the P/N is 6PK1905 if anyone is wondering.
Thanks for this.
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      04-02-2020, 05:51 PM   #970
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Quote:
Originally Posted by Yoko22R View Post
Thanks for this.
No prob. Figured I'd keep a spare on hand. Had a belt snap on me on my other SC'd car and left me stranded. No bueno. I like the Goodyear Gatorback/Continental Elite Poly-V belts.
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      04-05-2020, 01:22 PM   #971
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Does anyone know if there's any evidence yet, empirical or anecdotal, regarding reliability impact of Harrop vs. centrifugal style superchargers on the S65? More specifically, I'm curious if one platform creates more stress on engine internals, bearings, etc. than the other.
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      04-05-2020, 11:06 PM   #972
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Quote:
Originally Posted by Eja144 View Post
Does anyone know if there's any evidence yet, empirical or anecdotal, regarding reliability impact of Harrop vs. centrifugal style superchargers on the S65? More specifically, I'm curious if one platform creates more stress on engine internals, bearings, etc. than the other.
Both have been used extensively and it's pretty clear they're a non issue with each style. SC it and enjoy it
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      04-07-2020, 04:12 AM   #973
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I agree doesn’t seem to be that many problems around s/c makes a big difference for the better
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      04-16-2020, 04:53 PM   #974
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Has anyone done a tune with a bigger pulley and lower compression. I am still waiting for vac motorsport parts. I got forged pistons with a compression 10.5, and new road bearing. Also got a harrop kit wich is waiting for an install since december.
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      04-18-2020, 06:10 PM   #975
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Quote:
Originally Posted by BPMSport View Post
Kit's purchased not directly through BPM will receive software and tuning support from Harrop directly.

Since the streets are so empty, had an opportunity earlier today to stretch her legs - the pull is relentless:
Jeez - look at those revs jump!

Understood on the software. Would you sell the tune to anyone who purchased it directly from Harrop? Would rather have your tune as you've been evolving it over the years - and of course wouldn't expect hardware support from you...
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      04-18-2020, 06:17 PM   #976
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Can underdrive pulleys be ran with this kit for a tiny of bit extra oomph?

Also, how is sustained performance on track?
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      04-20-2020, 09:20 PM   #977
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Quote:
Originally Posted by Tigamilla View Post
Can underdrive pulleys be ran with this kit for a tiny of bit extra oomph?

Also, how is sustained performance on track?
You would need to find a belt that works with the blower and pulley since the pulley kits are generally supplied with belts for NA applications.
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      04-21-2020, 12:00 AM   #978
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Quote:
Originally Posted by Tigamilla View Post
Can underdrive pulleys be ran with this kit for a tiny of bit extra oomph?

Also, how is sustained performance on track?
Definitely not. An underdrive pulley would reduce performance.

The kit has been track tested quite a bit but it's always important to keep watch temperatures. On certain tracks I can get the oil temp past 275 pretty easily on a hot day even in an NA M3. We do leave all of the rev limit reducing temperature safeguards in place.
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      05-16-2020, 05:07 PM   #979
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I need stage 2 in my life
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      05-26-2020, 08:45 PM   #980
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I'll be joining the club soon
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      05-27-2020, 10:20 AM   #981
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On Harrop's website it says

"Calibration project development was undertaken in-house for more than 18 months using resources in Australia, Europe and the USA, BPM Sport was selected to assist with fine tuning, leveraging their extensive knowledge of the S65 ECU and its operating system."

So does that mean no matter where you purchase from in the USA that you will get the BPM tune? Kind of confused because BPM specifically said you have to purchase from them to get their tune.
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Last edited by Fastalpine; 05-27-2020 at 10:34 AM..
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      05-27-2020, 10:23 AM   #982
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Quote:
Originally Posted by Fastalpine View Post
On Harrop's website it says

"Calibration project development was undertaken in-house for more than 18 months using resources in Australia, Europe and the USA, BPM Sport was selected to assist with fine tuning, leveraging their extensive knowledge of the S65 ECU and its operating system."

So does that mean no matter where you purchase from in the USA that you will get the BMP tune? Kind of confused because BMP specifically said you have to purchase from them to get their tune.
BPM*

Purchases from Harrop will receive the codeveloped tune. BPM offers some additional changes/tweaks and tuning support directly from BPM.
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      05-27-2020, 10:28 AM   #983
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Sorry, mistype**

Ok thanks, just wanted to get some clarity on that.
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      07-06-2020, 01:43 AM   #984
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So is there going to be a stage 2 soon or not? So many different opinions and story's on this
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      07-06-2020, 09:12 AM   #985
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Quote:
Originally Posted by ACTM333 View Post
So is there going to be a stage 2 soon or not? So many different opinions and story's on this
Yes it exists, but read the thread man as this is the wrong way to go about it. If you have a stage one reach out to Mike to discuss stage 2. It's that simple.
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      07-06-2020, 07:12 PM   #986
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Hi Everyone

At the moment Stage II supply remains unavailable while the development pathway between Harrop and BPM is reviewed. Just to clarify as we've been getting emails that it was released/available from us - Stage II was never officially released. BPM has been running it on our car for some time, and also dyno tuned a couple close friends of Mikes vehicles (such as the airstrip car that went against the Hellcat in Colorado).

We certainly don't want to disappoint anyone but until the development is complete and signed-off we simply can't supply a higher boost package for the TVS S65 Supercharger.

We are perfectionists and are looking into additional CAN controls and modification of the base operating system with alternate sensors which would allow the DME to control fueling and ignition with much more precision. At the moment, all S65 supercharged applications don't actually know the amount of boost being produced - and to seamlessly manage transitions, we need to integrate further capabilities into the design of the electronic controls.
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Last edited by BPMSport; 07-06-2020 at 07:42 PM..
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