Bought unique 80s car

30minmotos
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Rising Sun, MD, USA

1987 callaway twin turbo corvette. Manual trans convertible. They made less than 140 of these in the soft top between 1987-1991. 

Such a rad car, Bought a guns and roses cassette from the same year for it and the car is DIALED.


It had a bunch of fiddily issues on the interior I sorted out, some detail work in the engine bay, and I will be listing it for sale, just wanted to share it with yall someone will think it’s neat!


This was a factory option back then, about a 25k package but it took your 230hp/300tq corvette to 350hp/550tq in 1987. Back then a lambo or Ferrari was around 400hp so those were serious numbers especially that torque figure! 

Magnesium wheels, dual intercoolers, splayed rod caps, forged internals, all in all a really serious car.

IMG 5963 3

IMG 5331 3.jpeg?VersionId=OTbxLdgdGQuQnWZQ3
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SKIDLID
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Fairmont, MN, USA
3/1/2026 5:14am

Very cool!  Check out YouTube videos of a Gnx with 4 people in it beating a Calloway at the drag strip though. Says the turbo Buick owner (me). I would love a Calloway though.

2
30minmotos
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3/1/2026 5:21am Edited Date/Time 3/1/2026 5:22am
SKIDLID wrote:
Very cool!  Check out YouTube videos of a Gnx with 4 people in it beating a Calloway at the drag strip though. Says the turbo Buick...

Very cool!  Check out YouTube videos of a Gnx with 4 people in it beating a Calloway at the drag strip though. Says the turbo Buick owner (me). I would love a Calloway though.

I’d be willing to bet the automatic in the Buick vs the manual in the callaway played a big factor. Not many people can really drive a manual to that level consistently.


Also bring that Buick to a road course and see how it does against the turbo vette 😉


I’ll have to check that video out tho has to be  cool!

1
JAFO92
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3/1/2026 5:36am

I know absolutely nothing about them things, but looks cool AF.

Enjoy the sweet ride.

3
TeamGreen
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3/1/2026 9:01am Edited Date/Time 3/1/2026 9:02am
30minmotos wrote:
1987 callaway twin turbo corvette. Manual trans convertible. They made less than 140 of these in the soft top between 1987-1991. Such a rad car, Bought a...

1987 callaway twin turbo corvette. Manual trans convertible. They made less than 140 of these in the soft top between 1987-1991. 

Such a rad car, Bought a guns and roses cassette from the same year for it and the car is DIALED.


It had a bunch of fiddily issues on the interior I sorted out, some detail work in the engine bay, and I will be listing it for sale, just wanted to share it with yall someone will think it’s neat!


This was a factory option back then, about a 25k package but it took your 230hp/300tq corvette to 350hp/550tq in 1987. Back then a lambo or Ferrari was around 400hp so those were serious numbers especially that torque figure! 

Magnesium wheels, dual intercoolers, splayed rod caps, forged internals, all in all a really serious car.

IMG 5963 3

IMG 5331 3.jpeg?VersionId=OTbxLdgdGQuQnWZQ3

May I humbly suggest the “Lawn Shot of Big Red” as your avi-picture? 

Now, here’s the question: why sell it? That’s a beauty and a true low-numbers car. If you’re one of those smart dudes that finds these and cleans-em-up and moves them at a profit…you know, where timing is everything…well, I get it.

Still…that’s a keeper!

Again, Nice Work!

Maybe a barn-find 912 for your next trick? 🤣

2

The Shop

30minmotos
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3/1/2026 9:38am Edited Date/Time 3/1/2026 9:40am
30minmotos wrote:
1987 callaway twin turbo corvette. Manual trans convertible. They made less than 140 of these in the soft top between 1987-1991. Such a rad car, Bought a...

1987 callaway twin turbo corvette. Manual trans convertible. They made less than 140 of these in the soft top between 1987-1991. 

Such a rad car, Bought a guns and roses cassette from the same year for it and the car is DIALED.


It had a bunch of fiddily issues on the interior I sorted out, some detail work in the engine bay, and I will be listing it for sale, just wanted to share it with yall someone will think it’s neat!


This was a factory option back then, about a 25k package but it took your 230hp/300tq corvette to 350hp/550tq in 1987. Back then a lambo or Ferrari was around 400hp so those were serious numbers especially that torque figure! 

Magnesium wheels, dual intercoolers, splayed rod caps, forged internals, all in all a really serious car.

IMG 5963 3

IMG 5331 3.jpeg?VersionId=OTbxLdgdGQuQnWZQ3
TeamGreen wrote:
May I humbly suggest the “Lawn Shot of Big Red” as your avi-picture? Now, here’s the question: why sell it? That’s a beauty and a true low-numbers...

May I humbly suggest the “Lawn Shot of Big Red” as your avi-picture? 

Now, here’s the question: why sell it? That’s a beauty and a true low-numbers car. If you’re one of those smart dudes that finds these and cleans-em-up and moves them at a profit…you know, where timing is everything…well, I get it.

Still…that’s a keeper!

Again, Nice Work!

Maybe a barn-find 912 for your next trick? 🤣

A barn find Porsche prototype race car would be a good time lol!

I’d love to to get to a position where I could keep one of these things but I’m not there just yet!


Growing family, expenses on the rise, on and on, gotta make some sacrifices to keep the machine alive!


In the meantime it’s fun being around them and straightening out the little issues and sending them in a better direction!
 

1
3/1/2026 9:43am

I remember reading about those when Hot Rod Magazine did a feature on them. 

1
30minmotos
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3/1/2026 11:18am

I remember reading about those when Hot Rod Magazine did a feature on them. 

I knew the name callaway and knew they built some cool stuff but didn’t know just how detailed the builds were. The amount of work into these c4 twin turbo cars is incredible. It also starts right up, idles clean behaves like a totally normal stock factory car. When you lay into it and the turbos build boost the train really gets rolling though. It is legitimately fast when the boost comes in!


 

2
freeh
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Lehi, UT, USA
3/2/2026 4:02pm

Awesome car!  I read about those back in the day, as I turned 16 in 1988.  The other Corvette tuner I remember was Mallett, I think. I would seriously consider keeping that car. I have no idea what it is worth today, but I suspect it will only go up in value over time.

Kenny Banyan
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3/2/2026 7:28pm

That’s a beauty!💯😎

Nairb#70
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Ivoryton, CT, USA
3/2/2026 11:44pm

Callaway was located on the CT shoreline where I grew up. Me and a moto bud went there to check the place out once. It was pretty interesting and impressive.

1
30minmotos
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3/4/2026 6:36am

When abouts did you visit their place?

3/4/2026 6:56am

Congrats on the new ride, my uncle has around the same year greenwood edition. Black and gold has a very cool look to it. 

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Nairb#70
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3/4/2026 10:06am
30minmotos wrote:

When abouts did you visit their place?

It was probably between 1986 and 1988. They are actually still there I think.

30minmotos
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3/4/2026 10:16am
30minmotos wrote:

When abouts did you visit their place?

Nairb#70 wrote:

It was probably between 1986 and 1988. They are actually still there I think.

That is cool, they were building the twin turbo vettes back then. The top speed records they shattered back then were INSANE! They did 250+ mph with a c4 corvette and drove it to and from the test 1000 miles or something total.


Insane company!!

1
30minmotos
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3/14/2026 7:44am

Took it out for a couple rips since the roads are finally clean.


This thing MOVES!IMG 6148 4IMG 6146 4IMG 6057 5.jpeg?VersionId=3KN2wz14i1 ee9Tm98fIMG 6072

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Kenny Banyan
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3/14/2026 8:14am
30minmotos wrote:
Took it out for a couple rips since the roads are finally clean.This thing MOVES!

Took it out for a couple rips since the roads are finally clean.


This thing MOVES!IMG 6148 4IMG 6146 4IMG 6057 5.jpeg?VersionId=3KN2wz14i1 ee9Tm98fIMG 6072

Does it have a 350ci?

30minmotos
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3/14/2026 8:22am Edited Date/Time 3/14/2026 8:22am
30minmotos wrote:
Took it out for a couple rips since the roads are finally clean.This thing MOVES!

Took it out for a couple rips since the roads are finally clean.


This thing MOVES!IMG 6148 4IMG 6146 4IMG 6057 5.jpeg?VersionId=3KN2wz14i1 ee9Tm98fIMG 6072

Does it have a 350ci?

Yeah they started with the 350 L98 the standard corvettes came with. Put all forged internals, beef up the oiling and cooling systems, add a cam suited for boost, drop the compression, then strap 2 turbos and 2 intercoolers to it.


Bumped it from 230hp and 300tq to 360hp and 500tq.


By 1991 the callaway vettes were making around 460hp and 580tq

2

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