Official Harrop TVS1740 Supercharger Thread

[Bakerboy]

What iat are people seeing on cruise? And what is ambient temperature?

Also how much are people seeing the iat after driving hard?

Thanks

[CamasM3e93]

Originally Posted by Bakerboy

What iat are people seeing on cruise? And what is ambient temperature?

Also how much are people seeing the iat after driving hard?

Thanks

With stock radiator I ran reliably +40F IATs above ambient with hard driving and steady state. With the CSF radiator, I see IATs 10-15 degrees cooler (so 25-30F+ ambient).

This weekend was 90-94F ambient with 115-125F IATs.

[DRLane]

Originally Posted by CamasM3e93

With stock radiator I ran reliably +40F IATs above ambient with hard driving and steady state. With the CSF radiator, I see IATs 10-15 degrees cooler (so 25-30F+ ambient).

This weekend was 90-94F ambient with 115-125F IATs.

Why would CSF radiator improve IATs?

[BPMSport]

Radiator is not going to change IAT at all.

IAT should be 25-40 above ambient - really depends if the car is sitting at idle or has air speed. Under high levels of boost the IAT will rise to a degree (wow, there's a pun…), and then normalize based on airspeed and exterior temp. During testing back in 2015 I was running the kit with up to 190F IAT - with no water circulation.

Because of the sensor location and bypass design, it's normal to see a higher IAT, and in some situations you will see the same or even a lower IAT with introduction of boost. This is based on many different factors.

[Bakerboy]

Originally Posted by BPMSport

Radiator is not going to change IAT at all.

IAT should be 25-40 above ambient - really depends if the car is sitting at idle or has air speed. Under high levels of boost the IAT will rise to a degree (wow, there's a pun…), and then normalize based on airspeed and exterior temp. During testing back in 2015 I was running the kit with up to 190F IAT - with no water circulation.

Because of the sensor location and bypass design, it's normal to see a higher IAT, and in some situations you will see the same or even a lower IAT with introduction of boost. This is based on many different factors.

Originally Posted by BPMSport

Radiator is not going to change IAT at all.

Hello Mike

Out of interest what ait is it before the timing is pulled back on the tune?

[DrFerry]

My Harrop SC Kit is For Sale:
https://www.m3post.com/forums/showthread.php?t=1950645

[drwankel]

Originally Posted by DrFerry

My Harrop SC Kit is For Sale:
https://www.m3post.com/forums/showthread.php?t=1950645

Why are you removing it?

[DrFerry]

Originally Posted by drwankel

Why are you removing it?

For financial reasons, I now need to sell the kit to some lucky buyer.

[BPMSport]

For those of you that have been patiently waiting for the latest batch of kits to arrive, we are still targeting November. We do have one or two available on this batch for anyone else interested. It's going to be a long wait after these last kits are claimed. Here's this weeks install on a beautiful 30K mile M3. The owner called today after a 4 hour drive back home and expressed how "blown" away he was and how it transformed the car into exactly what he was looking for. We appreciate all your feedback!

[jchrystal]

It's been a long haul, but I finally got the Harrop installed about a month ago. I started with a bone stock '11 E92 ZCP and began a ground up reimagining of the car. New Contis, black wheels, Brembo 380mm BBK (thanks Mike!), Bilstein B16 Damptronic, new thrust arms, cat delete, motor mounts, DCT tune (thanks, Mike!), new timing gaskets, valve cover gaskets, plugs, big injectors, and finally the Harrop and tune (thanks, Mike!).

I know it's been said before, but the car is now as it should have come from the factory. It was competitive in 2011, and now it's competitive in 2022. Idles smooth, immediate torque off the line, and a metric sh!t tonne of power when you get into it. It just pulls the entire rev range... 120MPH on a flat entrance ramp with room to spare. My three favorite things: the power, the sound, and all the people giving me the thumbs up and asking about the car.

Highly recommend the kit, and of course BPM. Mike offered salient, expert advice and consulting - he knows this install front and back, and doing the little things up front, such as replacing gaskets, throttle actuators, fuel vent valves, etc., will save you a lot of time in the long run. Mike was great, and he even saved me from myself a couple times (thanks, Mike!).


Signed, one very satisfied customer.

[Bakerboy]

I've gone stage 2 the pricey way

Syvecs s7+ (2 knock sensors, oil pressure sensor, 4 bar map sensor and new loom for the bypass and intercooler pump)
Stage 2 pulley
0280158123 Bosch injectors

Car is sensational now, almost a bit much

The features of syvecs are very interesting and everything can be tweaked to your exact preferences.

Bypass is now controlled via syvecs and I can use it like a waste gate and have various maps (boost levels), peak boost now is 10.5psi it seems.

I did have some boost leak issues but think this is now solved,

Car is an animal, I will start a separate thread when I have the dyno results and dragy times.

[DrFerry]

Originally Posted by Bakerboy

I've gone stage 2 the pricey way

Syvecs s7+ (2 knock sensors, oil pressure sensor, 4 bar map sensor and new loom for the bypass and intercooler pump)
Stage 2 pulley
0280158123 Bosch injectors

Car is sensational now, almost a bit much. The features of syvecs are very interesting and everything can be tweaked to your exact preferences. Bypass is now controlled via syvecs and I can use it like a waste gate and have various maps (boost levels), peak boost now is 10.5psi it seems. I did have some boost leak issues but think this is now solved, Car is an animal, I will start a separate thread when I have the dyno results and dragy times.

Can't wait to hear more about the Stage 2+ transformation as well as the soon to come dedicated thread. A few 'teaser' photos of the new Syvecs s7+ Bypass controller set-up would be appreciated by us prior stage 1 folks. What brand and size rear tire are you running to tame the beast?
.
https://www.syvecs.com/product/s7-plus/

[Bakerboy]

Originally Posted by DrFerry

Can't wait to hear more about the Stage 2+ transformation as well as the soon to come dedicated thread. A few 'teaser' photos of the new Syvecs s7+ Bypass controller set-up would be appreciated by us stage 1 folks. What brand and size rear tire are you running to tame the beast?
.
https://www.syvecs.com/product/s7-plus/

I thought you sold up mate?

The bypass is exactly the same visually but can be mapped to what you want.

There are 7 maps available through syvecs

Map 1 is set to bypass open, so effectively naturally aspirated

Map 2 is full boost

I will be adding a lower boost level to map 3 soon

The maps can be adjusted on the fly through the cruise control stalk

Tyres I'm currently on my road wheels but normally run semi slick on 18" as car is used on trackdays here in uk

The syvecs has an advanced traction control setup, now in where the cigarette lighter was in ash tray is a analogue rotating toggle switch. This again has 7 settings, from fully off, to some spin, to no spin. All of settings don't seem to interfere too badly with the driving experience

[DrFerry]

Originally Posted by Bakerboy

I thought you sold up mate?

The bypass is exactly the same visually but can be mapped to what you want.

There are 7 maps available through syvecs

Map 1 is set to bypass open, so effectively naturally aspirated

Map 2 is full boost

I will be adding a lower boost level to map 3 soon

The maps can be adjusted on the fly through the cruise control stalk

Tyres I'm currently on my road wheels but normally run semi slick on 18" as car is used on trackdays here in uk

The syvecs has an advanced traction control setup, now in where the cigarette lighter was in ash tray is a analogue rotating toggle switch. This again has 7 settings, from fully off, to some spin, to no spin. All of settings don't seem to interfere too badly with the driving experience

Thanks for great information. Yes, you're right I did sell mine. I missed out the word "prior" in my post above but have corrected it now. Harrop was also removed from my signature too. The syvecs sounds comprehensive and versatile. With custom traction control I expect you can dial it in for grip off the line. Glad the semi-slicks are doing the job.

[RUG8RB8]

Hello, I don't post much, but I am having an issue that is apperantly quite diffiult to solve. I am not looking for any bashing, just constructive feedback please if you have had a similar issue. My purchase of a very early 2015 Harrop from DrFerry went very smoothly with no issues, but the install has not gone well after the initial install. Intial install was completed in a day and car was idling fine. I should say just a couple nagging issues persist, because car starts and runs fine, albeit pegs at a steady 4 psi and small but noticeable breakup from 5-6K rpm. Install is being done at my local shop Performance Technic and lots of support from Mike at BPM. They have installed quite a few of these kits and this is the first one to exhibit such issues. Mike has sent me a new Harrop controller but unfortunately this did not help. They have checked three ways to Sunday for a normal so to speak "boost leak" and can't find anything. Manual boost gauge builds boost to 4psi nearly instantly on WOT and just sits there to redline. Electronic BOV has been recalibrated numerous times. Needless to say this is draining by wallet like a thousand paper cuts and yes more than a new kit would have cost now. I don't need to hear about that, but would love to hear if anyone else experienced a similar issue and what solved it. Thank you!

Addendum:

I added video of my current actuator operation below. It moves very freely.

https://youtube.com/shorts/VBqs_DFtq90?feature=share

New things installed:
Throttle actuators
Idle controller
fuel tank vent valve
plugs
VC gaskets
Flow matched big blues
S/C belt Gatorback
air filter


2009 E93 78K miles, DCT
Ran beautiful previously:
EVenturi
Quad resonated X-pipe
Vanguard Ti exhaust
Ohlins Coilovers
BBS Fi's
BPM Tune
BPM DCT Tune
Dinan Power Pulley

[DrFerry]

Cross posted from the "Harrop Owners Chime in" thread:
.
https://www.m3post.com/forums/showpo...&postcount=108

[BPMSport]

For all of you that have been patiently waiting for your Harrop kit to be manufactured from this batch, the time has come. The kits have finished production. We will be reaching out to the 7 lucky recipients to finalize the invoice and shipping costs and then the kits will ship. Thanks for all your patience and get ready to fall in love with your car all over again!

[BPMSport]

Originally Posted by RUG8RB8

Hello, I don't post much, but I am having an issue that is apperantly quite diffiult to solve. I am not looking for any bashing, just constructive feedback please if you have had a similar issue. My purchase of a very early 2015 Harrop from DrFerry went very smoothly with no issues, but the install has not gone well after the initial install. Intial install was completed in a day and car was idling fine. I should say just a couple nagging issues persist, because car starts and runs fine, albeit pegs at a steady 4 psi and small but noticeable breakup from 5-6K rpm. Install is being done at my local shop Performance Technic and lots of support from Mike at BPM. They have installed quite a few of these kits and this is the first one to exhibit such issues. Mike has sent me a new Harrop controller but unfortunately this did not help. They have checked three ways to Sunday for a normal so to speak "boost leak" and can't find anything. Manual boost gauge builds boost to 4psi nearly instantly on WOT and just sits there to redline. Electronic BOV has been recalibrated numerous times. Needless to say this is draining by wallet like a thousand paper cuts and yes more than a new kit would have cost now. I don't need to hear about that, but would love to hear if anyone else experienced a similar issue and what solved it. Thank you!

Addendum:

I added video of my current actuator operation below. It moves very freely.

https://youtube.com/shorts/VBqs_DFtq90?feature=share

New things installed:
Throttle actuators
Idle controller
fuel tank vent valve
plugs
VC gaskets
Flow matched big blues
S/C belt Gatorback
air filter


2009 E93 78K miles, DCT
Ran beautiful previously:
EVenturi
Quad resonated X-pipe
Vanguard Ti exhaust
Ohlins Coilovers
BBS Fi's
BPM Tune
BPM DCT Tune
Dinan Power Pulley

Eric,

Sorry to hear about these issues - we have been working with PT to try and solve this issue. I don't think you'll have any feedback here that will be useful - if this issue has happened in the last 8 years we've carried the kit, we would certainly know about it. We have never seen a kit with a fully working bypass and controller be 2-2.5 PSI down on boost. The hesitation/breakup the car has is likely as a result of the boost level not being where it should be.

The software is calibrated for the amount of boost the kit generates, and when the correct level is not being met, there is extra fuel being injected that the ECU has to compensate for. Being down 2-2.5 PSI is 30-40% down on boost and it would be expected that there would be hesitation issues when the fueling doesn't match with the expected air. We worked with Performance Technik to log this and found exactly that - the air fuel ratio is going extremely rich because the amount of air being forced in (boost) is low. The kit should be supplying approx 6 to 6.5PSI of pressure.

We provided PT directions today on how to check the bypass operation and they said they were going to smoke test for leaks. We have never seen an internal issue with the blower or a low boost issue on these kits in all of these years. I will reach out to PT and follow up with them with additional things to check.

Even though used kits are pretty rare, we've probably retuned about 20 of them and never saw any issue. Hoping there is a resolution to this soon.

[DRLane]

@BPMSport Wouldn't running an under drive crank pulley vs oem result in less boost?

[gtenedio]

mike

any recs on upgrading the diff with this kit?

[drwankel]

Originally Posted by RUG8RB8

Hello, I don't post much, but I am having an issue that is apperantly quite diffiult to solve. I am not looking for any bashing, just constructive feedback please if you have had a similar issue. My purchase of a very early 2015 Harrop from DrFerry went very smoothly with no issues, but the install has not gone well after the initial install. Intial install was completed in a day and car was idling fine. I should say just a couple nagging issues persist, because car starts and runs fine, albeit pegs at a steady 4 psi and small but noticeable breakup from 5-6K rpm. Install is being done at my local shop Performance Technic and lots of support from Mike at BPM. They have installed quite a few of these kits and this is the first one to exhibit such issues. Mike has sent me a new Harrop controller but unfortunately this did not help. They have checked three ways to Sunday for a normal so to speak "boost leak" and can't find anything. Manual boost gauge builds boost to 4psi nearly instantly on WOT and just sits there to redline. Electronic BOV has been recalibrated numerous times. Needless to say this is draining by wallet like a thousand paper cuts and yes more than a new kit would have cost now. I don't need to hear about that, but would love to hear if anyone else experienced a similar issue and what solved it. Thank you!

Addendum:

I added video of my current actuator operation below. It moves very freely.

https://youtube.com/shorts/VBqs_DFtq90?feature=share

New things installed:
Throttle actuators
Idle controller
fuel tank vent valve
plugs
VC gaskets
Flow matched big blues
S/C belt Gatorback
air filter


2009 E93 78K miles, DCT
Ran beautiful previously:
EVenturi
Quad resonated X-pipe
Vanguard Ti exhaust
Ohlins Coilovers
BBS Fi's
BPM Tune
BPM DCT Tune
Dinan Power Pulley

Originally Posted by DRLane

@BPMSport Wouldn't running an under drive crank pulley vs oem result in less boost?

That Dinan Power Pulley is an underdrive main pulley. It's effect would be exactly the same of installing a larger pulley on the supercharger itself. Less rpm for the supercharger, less boost.

[DRLane]

And Mike said we couldn't crack the case. Work's done boys, head home.