Official Harrop TVS1740 Supercharger Thread

Dave07997S · 03-22-2020, 08:38 PM

Awesome

BPMSport · 03-24-2020, 02:11 PM

Here's a cool video review and Dyno posted by one of our customers a few days ago:

Ashley_rj · 03-29-2020, 10:21 PM

[QUOTE=BPMSport;25963972]Here's a cool video review and Dyno posted by one of our customers a few days ago:

Hey Mike,
Wondering what you are doing to get the extra rear wheel bhp? I have a harrop s/c done by harrop in Melbourne but with just the standard exhaust and 490bhp at the rears on dyno jet. I would prefer not to decat for environmental reasons - possibly hypocritical... do you think your tunes are giving that much of an edge over theirs?

cchen9_ · 03-29-2020, 11:22 PM

Joined the crew. Drove 6 hrs roundtrip to GA to grab the kit from @//steve\\ yesterday and I have 95% of it completed today, couldn't wait to install

Just trims and bumper to put on tmrw morning, could've finished it up today but needed a break worked on it all day. Looking forward to the tune BPMSport

//steve\\ · 03-30-2020, 08:26 AM

Not wasting any time! Enjoy!

Ashley_rj · 03-30-2020, 08:55 AM

Quote:

Originally Posted by //steve\\

Not wasting any time! Enjoy!

Wow!! Definitely no time lost there!! You won’t regret it!

cchen9_ · 03-30-2020, 10:28 AM

Quote:

Originally Posted by //steve\\

Not wasting any time! Enjoy!

I couldn't help it, thought I could wait till at least next weekend lol

Quote:

Originally Posted by Ashley_rj

Wow!! Definitely no time lost there!! You won’t regret it!

cchen9_ · 04-02-2020, 05:10 PM

Has anyone had to replace their belt? Reached out to Harrop they said the P/N is 6PK1905 if anyone is wondering.

Yoko22R · 04-02-2020, 05:27 PM

Quote:

Originally Posted by cauQazn

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.

cchen9_ · 04-02-2020, 05:51 PM

Quote:

Originally Posted by Yoko22R

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.

Eja144 · 04-05-2020, 01:22 PM

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.

nycplumber · 04-05-2020, 11:06 PM

Quote:

Originally Posted by Eja144

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

Ashley_rj · 04-07-2020, 04:12 AM

I agree doesn’t seem to be that many problems around

s/c makes a big difference for the better

ZHUK · 04-16-2020, 04:53 PM

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.

Tigamilla · 04-18-2020, 06:10 PM

Quote:

Originally Posted by BPMSport

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...

Tigamilla · 04-18-2020, 06:17 PM

Can underdrive pulleys be ran with this kit for a tiny of bit extra oomph?

Also, how is sustained performance on track?

pooyab · 04-20-2020, 09:20 PM

Quote:

Originally Posted by Tigamilla

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.

BPMSport · 04-21-2020, 12:00 AM

Quote:

Originally Posted by Tigamilla

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.

ShakeNBake · 05-16-2020, 05:07 PM

I need stage 2 in my life

///M3 Gusta · 05-26-2020, 08:45 PM

I'll be joining the club soon

Fastalpine · 05-27-2020, 10:20 AM

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.

BPMSport · 05-27-2020, 10:23 AM

Quote:

Originally Posted by Fastalpine

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.

03-22-2020, 08:38 PM	#903
Dave07997S Brigadier General 720 Rep 3,964 Posts Drives: 2020 Ford Mustang GT Join Date: May 2009 Location: El Segundo, CA iTrader: (1)	Awesome
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03-24-2020, 02:11 PM	#904
BPMSport BimmerPost Supporting Vendor 3387 Rep 7,541 Posts Drives: Harrop M3 / F10 M5 / F82 M4 Join Date: Apr 2008 Location: SoCal iTrader: (9) Garage List 2000 BMW M5 [0.00] 1990 BMW 735i Turbo [0.00] 2008 BMW M3 [7.50] 2015 BMW M3 [0.00] 2015 BMW M5 [0.00]	Here's a cool video review and Dyno posted by one of our customers a few days ago: __________________ -----\| Like us on Facebook \| Instagram \|\| Tuning Information \| Remote Coding \|----- ----Visit us at www.BPMSport.com - Emotion. Driven. \| Toll Free: (888) 557-5133----
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03-29-2020, 10:21 PM	#905
Ashley_rj Private 31 Rep 96 Posts Drives: e90 M3 2009 harrop s/c Join Date: Mar 2019 Location: Melbourne iTrader: (0)	[QUOTE=BPMSport;25963972]Here's a cool video review and Dyno posted by one of our customers a few days ago: Hey Mike, Wondering what you are doing to get the extra rear wheel bhp? I have a harrop s/c done by harrop in Melbourne but with just the standard exhaust and 490bhp at the rears on dyno jet. I would prefer not to decat for environmental reasons - possibly hypocritical... do you think your tunes are giving that much of an edge over theirs? Last edited by Ashley_rj; 05-16-2020 at 09:24 PM..
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03-29-2020, 11:22 PM	#906
cchen9_ VisionAutoworks 322 Rep 206 Posts Drives: 2013 AW E92 M3 ZCP Join Date: Sep 2012 Location: 803 iTrader: (11)	Joined the crew. Drove 6 hrs roundtrip to GA to grab the kit from @//steve\\ yesterday and I have 95% of it completed today, couldn't wait to install Just trims and bumper to put on tmrw morning, could've finished it up today but needed a break worked on it all day. Looking forward to the tune BPMSport __________________ IG @cchen9_
	Appreciate 6 ///Mobbin1478.00 //steve\\1074.00 Space Fox1042.00 BPMSport3386.50 MilehighM3915.00 DrFerry6728.50 Quote

03-30-2020, 08:26 AM	#907
//steve\\ Major $//steve\\'s Avatar$ 1074 Rep 1,027 Posts Drives: 2012 E92 M3 Join Date: May 2012 Location: Atlanta, GA iTrader: (2)	Not wasting any time! Enjoy!
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04-02-2020, 05:10 PM	#910
cchen9_ VisionAutoworks 322 Rep 206 Posts Drives: 2013 AW E92 M3 ZCP Join Date: Sep 2012 Location: 803 iTrader: (11)	Has anyone had to replace their belt? Reached out to Harrop they said the P/N is 6PK1905 if anyone is wondering. __________________ IG @cchen9_
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04-05-2020, 01:22 PM	#913
Eja144 Second Lieutenant 303 Rep 298 Posts Drives: 2008 E90 M3 Join Date: Jun 2019 Location: Long Island, NY iTrader: (0)	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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04-07-2020, 04:12 AM	#915
Ashley_rj Private 31 Rep 96 Posts Drives: e90 M3 2009 harrop s/c Join Date: Mar 2019 Location: Melbourne iTrader: (0)	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	#916
ZHUK Registered 2 Rep 2 Posts Drives: m3 e92 Join Date: Apr 2020 Location: Moscow, Russia iTrader: (0)	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, 06:17 PM	#918
Tigamilla Private 30 Rep 63 Posts Drives: BMW E92 M3 Join Date: Mar 2020 Location: UK, London iTrader: (0)	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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05-16-2020, 05:07 PM	#921
ShakeNBake Second Lieutenant 59 Rep 209 Posts Drives: E92 ///M3 Join Date: May 2011 Location: CO iTrader: (3)	I need stage 2 in my life __________________ "If you ain't first, you're last!"
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05-26-2020, 08:45 PM	#922
///M3 Gusta First Lieutenant 50 Rep 323 Posts Drives: 2008 M3 Join Date: Jul 2016 Location: Pittsburgh PA iTrader: (1)	I'll be joining the club soon
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05-27-2020, 10:20 AM	#923
Fastalpine Second Lieutenant 234 Rep 224 Posts Drives: 1995 M3 Join Date: Mar 2015 Location: PA iTrader: (0)	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. __________________ 2012 E91 M Sport 2011 E90 M3 ILB/Speed/6MT/non sunroof Last edited by Fastalpine; 05-27-2020 at 10:34 AM..
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