Gyroperfo 914 upgrade

twistair

Living in the Skies
Joined
Nov 24, 2003
Messages
1,161
Location
Kronshtadt, Russia
Aircraft
none own :( currently flying Calidus mostly
Total Flight Time
Don't know exactly, ca. 3000 hours
I implanted similar (made by another EU manufacturer) device on a customers' Cavalon couple years ago. It works and actually gives notable extra power at take-off RPM. There are some opinions that it is not good for R914 and there are other opinions which look more practical i.e. since it works at wide open throttle only which is limited to 5 minutes then it loads engine for short time which doesn't affect engine TBO. Local dealer who is highly knowledgeable in Rotax engines agreed that this device should be safe for engine.
 

mark treidel

Senior Member
Joined
Nov 7, 2005
Messages
1,435
Location
Beautiful Mile High Denver, Colorado
Aircraft
AR-1
Total Flight Time
3000 +
I sent them a couple of requests for info a while back but never got the courtesy of a reply. There are many types of ECU 'chips' out there that claim to increase HP but few actually
work as advertised (ie. Amazon & ebay). I am highly skeptical of these items; especially when the company is non-responsive to inquiries of a specific nature and located
on foreign soil. Perhaps this works but we'll have to wait until someone has actual experience. They also do not post a price quote.
For now, (IMO) 'lipstick on a pig'. Buyer beware!
 

Rick E

Member
Joined
Feb 21, 2013
Messages
275
Location
Sydney, Australia
Aircraft
Cavalon and an MTO Sport
Total Flight Time
1150
A friend of mine has one and tried it on his M24, the device increased the manifold pressure up to 42” and engine revs by 150rpm. He flew it by himself with a light fuel load and saw a climb rate over 1500 fpm.
My main concern is weighing up the advantage of that extra power over the longevity of the engine.
The device is being sold for around $1,200.00 AUD.
 

Magni..ficent

Newbie
Joined
Jun 29, 2019
Messages
8
Location
Switzerland
I have one on my Magni M24, the MAP rises to around 42 in WOT mode with RPM maxed out at around 5650. It doesn’t seem to consume any extra oil and I am getting great fuel consumption. I flew today for 2 hrs and 54 mins on around 50 litres including around 20 full turbo takeoffs. Around 17litres an hour. I had max all up weight of 500kgs at first takeoff. I can’t tell you if the increase in MAP is affecting engine life but I really hope not!!
 

mark treidel

Senior Member
Joined
Nov 7, 2005
Messages
1,435
Location
Beautiful Mile High Denver, Colorado
Aircraft
AR-1
Total Flight Time
3000 +
Well, here it is some 3.5 months since I last posted above and have not heard one word from this company.
I sent (one last) email again yesterday when this thread was reopened. I will post if/when I get a reply.
Fingers crossed.....Philip, how long have you been operating your Magni with this product and how do you
communicate with the company? Perhaps their email isn't working or something is wrong.
If this is such a great thing, why aren't there many more of them in operation and why haven't I heard of them until
the start of this thread? I know of no one in the USA who has talked about this item, yet alone used one..... Just me??
Sorry to be sceptical but all the indicators are setting off my alarm bells. Til we know more......
 
Last edited:

Magni..ficent

Newbie
Joined
Jun 29, 2019
Messages
8
Location
Switzerland
Well, here it is some 3.5 months since I last posted above and have not heard one word from this company.
I sent (one last) email again yesterday when this thread was reopened. I will post if/when I get a reply.
Fingers crossed.....Philip, how long have you been operating your Magni with this product and how do you
communicate with the company? Perhaps their email isn't working or something is wrong.
If this is such a great thing, why aren't there many more of them in operation and why haven't I heard of them until
the start of this thread? I know of no one in the USA who has talked about this item, yet alone used one..... Just me??
Sorry to be sceptical but all the indicators are setting off my alarm bells. Til we know more......
I have had mine installed for about 6 months and have done about 40 hours since then. I know around 6 people who have them including avMagni local agent with no issues. They are a French company and as far as I know still in operation. If I find out more I will post!!
 

Greg Vos

Newbie
Joined
May 26, 2019
Messages
32
Location
Cape Town
Aircraft
R44/22 H269/300 MD 500 Magni Gyro (all) Xenon Gyro; DTA; ELA; MTO
Total Flight Time
3300 (1397 Gyro hours)
I had access to this device while working with the DTA in Nepal, the flying at Heli Air Nepal in the Himalayas brings extreme conditions to any gyro
That said I removed it and suggested as Rotax don't approve it it can't be of any good value, all it does it it fools the TCU and iMO it simply over boost the engine, the 914 is a pressed crank and one really does not want to over stress it.

If Rotax Austria thought one could get more than 5 mins boost or.more power with a plug in dongle for very little investment I'm sure they would?

My opinion don't touch it ! A Rotax is Avery well made machine and very expensive built by some very clever people.
 

Magni..ficent

Newbie
Joined
Jun 29, 2019
Messages
8
Location
Switzerland
I had access to this device while working with the DTA in Nepal, the flying at Heli Air Nepal in the Himalayas brings extreme conditions to any gyro
That said I removed it and suggested as Rotax don't approve it it can't be of any good value, all it does it it fools the TCU and iMO it simply over boost the engine, the 914 is a pressed crank and one really does not want to over stress it.

If Rotax Austria thought one could get more than 5 mins boost or.more power with a plug in dongle for very little investment I'm sure they would?

My opinion don't touch it ! A Rotax is Avery well made machine and very expensive built by some very clever people.
Hi Greg

When you flew the DTA were you there at the same time as Pascal B?
 

Greg Vos

Newbie
Joined
May 26, 2019
Messages
32
Location
Cape Town
Aircraft
R44/22 H269/300 MD 500 Magni Gyro (all) Xenon Gyro; DTA; ELA; MTO
Total Flight Time
3300 (1397 Gyro hours)
No he came after I had left?

I bump heads with the Frenchman when I was there, him and I did not have the same dicipline with pre flight
He used a torque wrench as if it was a shifting spanner

To say the least he crashed one of there gyro copters early in May
 

mark treidel

Senior Member
Joined
Nov 7, 2005
Messages
1,435
Location
Beautiful Mile High Denver, Colorado
Aircraft
AR-1
Total Flight Time
3000 +
I got a response....Translated, it says the cost in US $695.00 + $75.00 additional for shipping. Allow 4-6 weeks. Also gives a link to the website & an order form.
Other questions I posed went unanswered.
 

Magni..ficent

Newbie
Joined
Jun 29, 2019
Messages
8
Location
Switzerland
As I have posted before, quite a few guys in Switzerland fly with them and I have not heard of any issues with the engine, don’t forget it only works when Turbo is engaged and that is typically around 3minutes a flight i.e. on take off to 300ft or so, yes it boosts the map pressure but does not over rev the engine.
 

Greg Vos

Newbie
Joined
May 26, 2019
Messages
32
Location
Cape Town
Aircraft
R44/22 H269/300 MD 500 Magni Gyro (all) Xenon Gyro; DTA; ELA; MTO
Total Flight Time
3300 (1397 Gyro hours)
As I have posted before, quite a few guys in Switzerland fly with them and I have not heard of any issues with the engine, don’t forget it only works when Turbo is engaged and that is typically around 3minutes a flight i.e. on take off to 300ft or so, yes it boosts the map pressure but does not over rev the engine.
Yes but if you boost beyond the engine limits you are placing a huge stress on the crank, the gearbox components and other ...the devise fits in line with the air box scensor, it fools the OEM Turbo Control Unit and in effect let's one boost higher than normal in a certain altitude (DA) conditions, it also lets one boost longer than the max of 5 minutes as recommended by Rotax
This means that If you are not paying attention you risk overboost, I have not over boosted a Rotax (yet) but I do dabble with high HP V8 engines and let me just say if anyone has seen a engine that has been overboosted you will understand the damage, .....I'm talking about conrods through the side of the block type of damage.

I say again if Rotax themselves thought it safe to boost higher (keeping the gate more closed) and for longer I'm sure they would have developed this devise?
Myself I would not be happy using this devise, the 914 works hard overboosting it is not wise.
 

Magni..ficent

Newbie
Joined
Jun 29, 2019
Messages
8
Location
Switzerland
Sorry to disagree with you! To date Gyroperfo have 300 of these installed without one incident, including French National Railways flying 3 machines. It is worth noting that the Rotax 915 which is based on the 912 as is the 914 but with a slightly larger bore, injection and turbo has a max MAP of 51, my 914 max is 42. And yes it does cut out when the turbo cuts out after 5 mins. As regards to talking to Gyroperfo as mentioned in a previous post, I just spoke to them, they picked up on the 2nd ring and were extremely helpful BUT you need to be able to speak French!
 

Greg Vos

Newbie
Joined
May 26, 2019
Messages
32
Location
Cape Town
Aircraft
R44/22 H269/300 MD 500 Magni Gyro (all) Xenon Gyro; DTA; ELA; MTO
Total Flight Time
3300 (1397 Gyro hours)
Sorry to disagree with you! To date Gyroperfo have 300 of these installed without one incident, including French National Railways flying 3 machines. It is worth noting that the Rotax 915 which is based on the 912 as is the 914 but with a slightly larger bore, injection and turbo has a max MAP of 51, my 914 max is 42. And yes it does cut out when the turbo cuts out after 5 mins. As regards to talking to Gyroperfo as mentioned in a previous post, I just spoke to them, they picked up on the 2nd ring and were extremely helpful BUT you need to be able to speak French!
Well we agree to disagree?
One must not look at how many units are installed? Rather look at hours on the engines that are trouble free IMO, one cannot compare the redesigned crank of the 915 that is welded as apposed to the others that are pressed?

My exp with the French has been underwhelming with a very know it all attitude .....mabye they can teach the Austrians about how they are selling the Rotax as underpowered ? And include their magic dongle in the box 😁

It is like the guys who track there cars, we know that HP does not come from a simple add on software program, recently I was approached by a supplier who claims for a few hundred USD he can upgrade my car with 60Kw with a sofrware upgrade?
I tried to explain that a combustion engine is a air pump and one needs to work on intake and exhaust in order to facilitate large HP gains? I will not go into the issue of extra heat that comes with all this extra power ....but I'm certain if any of the members on this forum ride the latest Italian Panigale' they will know what I'm talking about?
We had a cup of tea and I sent him on his way .....

I look forward to reading in the years to come how this magic dongle that fools the TCU has transformed the humble and robust 914 that has safely kept me aloft over 1200 hours has improved.
 
Top