Harrop twin screw sc for s65

[VT3M33]

Originally Posted by Mike Benvo

Sorry for lack up updates here, lost someone very close to me.

Here are a few vids:

Dyno of my car from awhile ago:

Garage Sound:

Playing with my late F80 M3:

There are a few more that I will post, probably next week. Hoping to get some better GoPro footage. I know these are all low quality iPhone vids - that's all for now.

Dude you came close to the curb

[L4ces]

Yumyum

http://www.harrop.com.au/dyno/M3_Dyno_Results.pdf

[MK-Autolab]

Harrop just released their official Dyno result chart.

http://www.harrop.com.au/dyno/M3_Dyno_Results.pdf

[ashtaron14]

376.5-380.6kW; 511-516hp
562.3-579.0Nm; 414-427lb/ft

^ assuming a 15% powertrain loss, it's a 587hp;476lb/ft kit?

[jagman]

Wow

[MK-Autolab]

Originally Posted by ashtaron14

376.5-380.6kW; 511-516hp
562.3-579.0Nm; 414-427lb/ft

^ assuming a 15% powertrain loss, it's a 587hp;476lb/ft kit?

376.5-380.6kW : 504-510hp
562.3-579.0Nm : 414-427lb/ft

Hub dyno gives generally higher numbers.

[pbonsalb]

You could compare to the few dyno dynamics dynos in the dyno database. I'll wait for a Dynojet result. The one thing that does look obvious is that the torque comes in sooner than with a centrifugal that does not make full boost until redline.

[Patrón]

sorry if it's been posted, what psi is this at?

[Hujan]

510 whp and 414 wtq is excellent for a "Stage 1" kit.

I assume the differences in the kits will just be increased boost? Assuming the cooling capacity is the same from Stage 1 to Stage 2 and the only thing that changes is software and pulley size, a Stage 1 kit might be the ideal kit for the more track-oriented crowd, for whom absolute HP is not as important as consistent performance.

[wrecklessfool]

I thought torque and horsepower curves always crossed paths at 5252 RPM. Am I missing something here? Does this particular setup go against the norm for some reason?

[BPMSport]

This is correct, however, this graph is in kW/nM which will cross at a different point than with hp and ft/lbs as units.

Harrop will be doing some more track testing on Monday.

I was having a blast today spinning 295's at under 4,000 rpm in my car.

The track event on Monday in Australia will have media crews present so hopefully Harrop will have a few things to post up for your viewing pleasure.

[BPMSport]

Originally Posted by Patrn

sorry if it's been posted, what psi is this at?

5.5 to 6.5 PSI currently.

[aussiem3]

Originally Posted by Mike Benvo

This is correct, however, this graph is in kW/nM which will cross at a different point than with hp and ft/lbs as units.

Harrop will be doing some more track testing on Monday.

I was having a blast today spinning 295's at under 4,000 rpm in my car.

The track event on Monday in Australia will have media crews present so hopefully Harrop will have a few things to post up for your viewing pleasure.

If the numbers are still a moving goal post and testing is incomplete, how come there is a customer release for this kit, at least here in Australia. There are a few customer cars. What does that say?

[Hujan]

Originally Posted by aussiem3

If the numbers are still a moving goal post and testing is incomplete, how come there is a customer release for this kit, at least here in Australia. There are a few customer cars. What does that say?

I think it's quite likely the purchasers were advised they were getting a Beta version of the software. They may have even gotten a discount for helping finalize the software by running logs, etc. Obviously, when the software is completely finalized, I imagine the first purchasers would be give a free update.

I find it odd that so many people seem to want to accuse Harrop of doing nefarious things based on the fact that they are simply doing a "soft" release to work out the last few bugs before going fully to market.

[OM VT3]

Originally Posted by aussiem3

If the numbers are still a moving goal post and testing is incomplete, how come there is a customer release for this kit, at least here in Australia. There are a few customer cars. What does that say?

Lol Everyone that has the kit in Australia knows the it's still in testing and there are small changes that might be made to tuning it's no big deal

[aussiem3]

Originally Posted by Hujan

I think it's quite likely the purchasers were advised they were getting a Beta version of the software. They may have even gotten a discount for helping finalize the software by running logs, etc. Obviously, when the software is completely finalized, I imagine the first purchasers would be give a free update.

I find it odd that so many people seem to want to accuse Harrop of doing nefarious things based on the fact that they are simply doing a "soft" release to work out the last few bugs before going fully to market.

Originally Posted by leigh

Lol Everyone that has the kit in Australia knows the it's still in testing and there are small changes that might be made to tuning it's no big deal

Noted gents. Just putting it out there. I was not accusing Harrop of anything. Just given that official real world numbers haven't been released by Harrop, I was surprised the kit has retailed.

[s85e90]

Originally Posted by VT3M33

Dude you came close to the curb

Reckless!! Lol

[Hujan]

Anyone have any info about how much weight the Harrop kit adds to the car?

[BPMSport]

Originally Posted by Hujan

Anyone have any info about how much weight the Harrop kit adds to the car?

The tracking number for my kit said 48kg when I just looked it up, but that's including the big crate, etc..

I will try to weigh it over the next couple days and let you know.

The track day was a great success and I'm looking forward to the pics and vids Must be nice to rent a track and have pro drivers on board!

[Hujan]

Originally Posted by Mike Benvo

The tracking number for my kit said 48kg when I just looked it up, but that's including the big crate, etc..

I will try to weigh it over the next couple days and let you know.

The track day was a great success and I'm looking forward to the pics and vids Must be nice to rent a track and have pro drivers on board!

Sounds good. I trust you'll remember to account for the OEM parts that this kit replaces (which I guess is basically just the manifold).

[DaveDee]

Originally Posted by Mike Benvo

The tracking number for my kit said 48kg when I just looked it up, but that's including the big crate, etc..

I will try to weigh it over the next couple days and let you know.

The track day was a great success and I'm looking forward to the pics and vids Must be nice to rent a track and have pro drivers on board!

Take into account the weight of the stock parts that are removed like the manifold and as you said the box and packing materials

The track day was nothing short of spectacular, Harrop (being an Eaton partner)are huge with GM here and there were a lot of big cubes but the M3s were really well represented. The Harrop M3 was pushed to the limits all day and didn't fault once. Temperatures were around 95 degrees. There were 5 professional champion race drivers who were instructors on the day and the level of improvement for everyone was huge.
The day was a complete success which further vindicates the design and quality of the supercharger kit. There were several Harrop equipped M3's on the day including two of my Clients and another Harrop Client ready for installs.
The hot laps in the Harrop Porsche cup car were a real bonus.

[bettsc]

Sounds like a great day Dave, did you get any videos from the day?