What others say...

Here are some more testimonials from satisfied customers (Full contact details provided on request. These customers are more than happy to testify)

"Just a note to say thanks for amp. This is one hell of a happy bunny at this end. It works a treat. I've got my car back! All the things you said. Smoother, quieter, runs more even and as for starting it started first time and without choke, and that was with two HT leads on wrong. I'd recommend it to all E-type owners. Cheers"
Roger Calver, Mapperley, UK, July 2007

“My 1974 XJ12 had been running badly for some time and I was reluctant to drive it. I saw the REOPUS upgrade at the Auckland Jaguar Club show and after listening to what the unit could do I purchased one in the hope that it would solve my problems with the car. After installation the car started first time, which it hadn’t done before! Normally I would have to leave the engine running under choke for 10 minutes to warm up before I drove the car, but I decided to chance it. I noticed the improvement immediately and I could now confidently drive it as soon as I started the engine.
After a few miles and onto the motorway I just couldn’t believe that this was the same car. It accelerated as I expect a V12 to do and was a lot smoother and quieter. The difference was amazing”
Peter Tripp Auckland November 2006

“Re: 1973 E-type V12 convertible REOPUS installation.
I have taken the car for a long test run yesterday and wanted you to know my experience;
First of all, the cold start has improved tremendously. It is now as quick as the turn of the key, as before it would take quite some time to turn it over before it would fire.
Secondly, the engine runs so much smoother and quieter than before, acceleration is much quicker too. Overall, the engine performance has improved dramatically and it drives like a new car. Best thing since sliced bread.
Thank you very much for putting me onto this product and I hope you will sell many more, as it has made me appreciate my car more than ever”
Ton Heus Euromed, November 2006

"After finding Dave's REOPUS unit, I bought one and installed it for my 73 E-type OTS. Installing it was easy and the results have been astounding. Better starting, smoother and quieter running and better performance. It's like a new car. And it didn't require any other modifications, even the timing was unchanged. As this is a concourse car I didn't want to go to a non standard unit. I am one happy customer and can recommend your unit to anyone."
Posted by Keesu on Roadfly Jaguar XKE forum on 2006-09-19 at 04:16:59

The following is a letter to the Jaguar Drivers Club in NZ:
"Dear Stephen,
Just wanted to let the members know about the improvement that fitting one of the Dave Curry REOPUS units has made to my 1973 V12E. I can confirm that all the claims made by REOPUS Engineering have also been my experience... I have owned my car for coming up 20 years & travelled extensive mileages so the cars performance prior to fitting the new unit is well known to me... Fuel consumption improved by 9% and overall the engine performance improved. The standing quarter down from 15.79 to 15.40 and overall drivability significantly improved. So I can recommend the unit.
Just to make it clear I do not know Dave Curry and we have never met.
Kind regards,
Bryan Wyness"

“I am very happy with the REOPUS upgrade and in particular the increased torque that my XJS now has. I can feel the real acceleration for the first time”
Barry Eade, Auckland, September 2006

"I am absolutely astonished at the difference in performance of my V12 E-Type since fitting your REOPUS circuit board. It performs like a brand new car now. Nothing I have ever done to a car has made such a big difference to smoothness and performance. If you know anyone who has not made the change yet tell them from me "Just do it!". Phil Warner, Director, Car and Classic Ltd. www.CarAndClassic.co.uk

"Hello Paul
It was a great feeling to hear the V12 running (smoothly and soft) after the first turning the key for ignition. In the next days I will do the recommendet check with stroboscope.

Thank you for all your helps and e-mails in this case. And thanks to your partnes in New Zealand.

Regards
Helmut"

And from Aston Martin V8 owners;

“The installation of a REOPUS ignition upgrade in my 1977 Aston Martin V8, has been a great investment. In spite of several attempts by “experts” to tune the car, it was only when I fitted a REOPUS unit that I was able to obtain a correctly functioning ignition system and then deal with other issues to get the V8 running as it was designed to. After a number of frustrating years, gone is the poor cold starting and misfiring under acceleration. I can strongly recommend the REOPUS upgrade to any vehicle owner with the old Lucas Opus ignition”.
Clive Butler, Auckland, October 2006

"Hi Paul

The Re-opus arrived, and am happy to say fitting was straight forward, and installed okay . Aston runs great, huge improvement on Hot Start, and I have recommended the mod on the AMOC website to my fellow V8 owners.

kind regards Jamie"

Now a customer with a Cosworth DFV engine in a classic F1 Lotus 49 racing car. His main concern was the ability of a ReOpus to run his V8 @ 10,500rpm...

"Yes I did install a ReOpus unit in a Cosworth DFV. It is a very early engine, in a Lotus 49. The problem we had with the original Opus was that it would heat soak from the engine and start to develop a high speed miss at high RPM after a few laps.
The ReOpus seems to have fixed that. It starts up faster and the timing seems to be more steady (not as much bounce in the timing light). It also works with the Lucas rev limiter that was already in our spark box."

Jeff, VP Racing. USA.

What the ReOpus designer says...

"Some of the electronic components originally used in the OPUS amplifier will have shifted in value or even partially failed over time and therefore your OPUS amplifier is attempting to operate outside its designed limits.

The OPUS circuit uses the first pulse it ‘sees’ when the ferrite rod passes the pickup to fire the coil. If the oscillator output frequency or voltage shifts, the primary voltage on the pickup will be insufficient to produce the necessary stable output when the ferrites pass the trigger point. When this happens you get a weak and irregular spark, this problem usually appears when the engine is hot.

The OPUS amplifier did not have sufficient temperature compensation or voltage regulation for reliable operation therefore accurate ignition timing was never achieved.

In redesigning the electronics we have kept with the original approach of the Lucas Opus team but used state-of-the-art electronics. The circuit still functions in a similar manner to the way it was first designed, except now the ignition amplifier is voltage regulated and the semiconductor oscillator is temperature compensated. When coupled with the hybrid transistors specifically designed for firing ignition coils this translates to very precise timing and a powerful spark every-time.

We have put a lot of spike suppression into our circuit to avoid damaging components. This is one of many things the OPUS did not have. I am confident that we have done all we can to avoid potential warranty claims from component failure.

We have completed a considerable amount of road and dynamometer testing of the REOPUS in my V12 E-Type and other cars over the last few months to ensure reliability and performance. To date we are more than pleased with the improvement in starting, smooth running and performance. The circuit has been tested up to 8,000 rpm on our test jig and the coil firing observed on an oscilloscope. The coil waveforms are stable, clean and synchronised to the pickup signal.

The independent Jaguar workshops who have tested the REOPUS in the UK said it was the first OPUS-based system that they had ever seen with correct timing between cylinders. When he drove my car he said it was the smoothest V12 E he had ever driven and yes, it started when hot."
Dave Curry, REOPUS designer.