Goin Manta

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Goin Manta U.S. Based Opel enthusiast, inventor, and Opel parts importer/exporter.

So due to the day job, I have to go to a conference... :/Yeah. Work stuff.https://www.navvis.com/events/intergeo-2026OH ...
08/10/2026

So due to the day job, I have to go to a conference... :/

Yeah. Work stuff.

https://www.navvis.com/events/intergeo-2026

OH WAIT... it’s in Munich, and they conveniently scheduled it for September 14th through the 17th.

Hmmm...

Seemed kind of silly to fly all the way to Germany and come straight home, so I decided to extend the trip a few days.

Apparently there’s some little local festival that starts that weekend. 🍺😏

So... Opel family, what to do, what to do?

I’ll be wandering Germany solo for a few days and would love to meet some Opel people, see some cars, grab a b**r or three, and make some new Opel friends while I’m there.

Who’s around? :)

Visit us at Hall C5 at Messe Munich and see how the NavVis Reality Capture Solution can help you Build Better Reality. 

Another Beautiful day at VDOT Workers Memorial on Afton Mountain.
07/27/2026

Another Beautiful day at VDOT Workers Memorial on Afton Mountain.

After some pointed emails, pointing out where they were the ones that breeched the contract... and sharing the emails wi...
07/27/2026

After some pointed emails, pointing out where they were the ones that breeched the contract... and sharing the emails with a few regulatory boards.

I got the Calibra back and they are refunding my listing fees.

With some luck and United Airlines Frequent flyer points.. I was able to fly back to Harrisburg PA and retrieve my Calibra and didnt cost much more than a tank of gas and an Uber ride from airport.

Mecum Auctions I am writing to express my absolute outrage over how my vehicle, Lot T211, was handled today.​I agreed to...
07/23/2026

Mecum Auctions

I am writing to express my absolute outrage over how my vehicle, Lot T211, was handled today.

​I agreed to run No Reserve solely on your team's explicit recommendation that it would generate stronger action. Instead, your auctioneer tanked momentum instantly by dropping the opening bid to an insulting $2,000.

Not only was I shoved to the dead end of the second day instead of the mid-day slot I was led to expect, rolling onto the stage after the crowd had already cleared out.

I was staged as far away from anyone in the center as you could get and I paid a premium for the honor.

​To make matters worse, the promotion promised for this vehicle was nonexistent. I monitored your emails and social media channels leading up to this event; while other lots received steady feature posts and blasts, my car received zero promotion. When it finally hit the block, the auctioneer made zero effort, no background, no context, no mention of its rarity or condition. It was treated as a throwaway lot just to clear the ring.

​I spent more out-of-pocket to bring this car to Harrisburg than I netted from the $4,500 sale. I gave a clean, unique car away for free because I trusted your team's representations.

​Mecum collected its commissions, but you completely failed to deliver on marketing, placement, or representation. This was inexcusable.

I hope my experience helps others learn to never trust your words when it comes to what you will do for the extra fees you charge. Nor should anyone trust thier car with you, especially for No Reserve. Ever.

*** Update:

After my post, I didn't just sit on my hands. On Friday, I put things directly in motion: I revoked my Power of Attorney, reported to my DMV the potential fraud on my title, and their behavior to regulatory agencies (being sure to add every Mecum.com email I had to the emails) and waited.

​On Saturday at 8 AM, the initial offer was to refund all my fees and pass along the buyer's fee on top of the auction price. Which confirmed a dealer got preferential treatment on fees and I was sold to a dealer. Like all the other late run NR cars.

I rejected it immediately and demanded my car back.

They tried to invoke contract terms, to which I pointed out that their rapid capitulation was proof they had broken the contract. I backed it up with emails showing my promised "star" run time of noon, alongside pictures of where they actually staged my vehicle.

​At that point, they unwound the auction entirely and told me to come get the car. I booked a flight for Sunday morning, landed in Harrisburg, retrieved the gate pass, and drove the Opel Calibra back home to Charlottesville.

​If this happens to you, get loud and move fast. Here is what every consignor needs to keep in mind:

​Demand a Promised Run Time: Get them to commit to the specific day and time window your car will run. Once you receive your lot number, check where it actually falls on the schedule—the position in the lineup will immediately tell you if they lied about your placement.

​Watch Wednesday & Thursday Staging: If you are placed on a Wednesday or Thursday, expect to be staged as far away from the main action as possible, regardless of any verbal promises about "prime locations."

​Hold Them to Paid Upgrades: If you pay extra for star or better treatment and do not receive that level of marketing, placement, and presentation, they are breaking contract.

Make sure you are included on all promotions they do. I requested to see mine and they had done zero.

Hold them accountable.. And do it on the spot. Becuase you only have until the day the car leaves in the hands of the dealer to recover your car. After that it will get a LOT harder and then it becomes almost impossible and far more expensive to recover anything.

I was fortunate.. But I also work in a field where I need to know contract law. So I knew which buttons to push and I began action not with lawyers but with fact and regulations.

​

Mecum Auctions leads live auctions of collector cars, antique motorcycles, and Road Art® memorabilia across the US.

05/23/2026

Harold Collins

For those that have asked and such. CAUTIOUSLY Optimistic, that a kit of just the three cast parts will be available for...
05/23/2026

For those that have asked and such.

CAUTIOUSLY Optimistic, that a kit of just the three cast parts will be available for $1200.

No Hardware, No throttle body, No sensors, No ECU, etc.. a "DIY" intake. You can then use an older L-Jet, LE Jet or Motoronic, your own Microsquirt, or Speeduino, etc.

It would be a run of 20.. and we would ship worldwide.

Could be available as soon as fall of this year. But need to know if others are kicking tires or truly interested. Considering a Kickstarter campaign. Depending on the interest. If its only the 5-10 that contacted me.. for the full kit then maybe I won't bother.

Also the Throttle Body will be available and crank sensor holder with distributor cap kit as well. Even if I dont do kits. Those can be used on a 1.9L/ 2.0L or 2.2./2.4L intake. Those kits will be available via ClassicFuelInjection in the UK to go with the kit they sell for my intake.

https://www.classicfuelinjection.co.uk/goin-gt

The thing to know is my kit was designed to fit both under a GT Hood without modification, and add performance. But if someone already had an Opel/GM Intake for a CIH motor, then converting from the Bosch systems to aftermarket is mostly already done. Just need to swap out the "EFI parts".

Complete kit with Speeduino ECU available (Uses same off the shelf program as Microsquirt and uses bluetooth built in). ...
05/20/2026

Complete kit with Speeduino ECU available (Uses same off the shelf program as Microsquirt and uses bluetooth built in). PM for details.

It can come with or without the ECU/Wiring harness.

05/16/2026

if you dont know... now you know

at Carlisle :)
05/16/2026

at Carlisle :)

Three years. That is how long it took to get here, and I am incredibly proud to say the GoinEFI project is officially co...
05/14/2026

Three years. That is how long it took to get here, and I am incredibly proud to say the GoinEFI project is officially complete.

​This was never about the bottom line; it was a passion project born out of a love for these cars. After a total project investment of at least $25,000 of my own money (and an equal amount from preorder buyers) and plenty of lessons learned along the way, seeing the finished product makes it all worth it.

​I am thrilled to announce that we will have two running examples at the show this year, both dialed in and running great on MaxxECU:

​A 2.0L setup - Ben Goins' Manta
​A 2.4L setup - Gordon Paytons' GT
​
This journey was never about profit; it was a passion project for the Opel community. My goal from the start was to make a kit that was affordable and I thought I'd get "paid back" for my work by getting a free kit or two out of the deal. Yeah... no. 🤣🤣

To quote the old ladies in that commerical "Thats not how this works, thats not how any of this works."

​To be honest, when you look at the money and time spent in development, the math is simple: if you have to ask the price or how much I have in it, you probably can’t afford it.

This was a "labor of love" in the truest sense. That and determination to finish. My absolute first priority now is making sure all my initial supporters are made whole. Either by kit or refund. Only after everyone is squared away will I even think about the value of the final kits left in existence (and at least two of those are staying with me!). So for now the only kit for sale and the kmly kit that may probably ever be for sale will be at Carlilse.

Not for sale, per se (will consider offers). But I am just looking forward to celebrating the 30th anniversary of Opels@Carlisle with a finished product to show for it and sit back with a b**r and friends.

​I will have one kit on hand at the meet (featuring the Speeduino ECU prototype ECU and harness - Set up for VR sensor) for anyone who wants to see the hardware up close. Ill even have the choice of crank sensor. But no custom distributor.

​See you at Carlisle!

BTW Thanks Joanna Rafał Tusień Jef Boite For the logistical support over the last two years.. and the Opel community for its support over the last 30.

​

Address

100 Bowen Loop, Suite 200, Charlottesville, VA
Charlottesville, VA
22911

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