Help me understand why?
Why can’t we Turbo or Supercharge a GT? This is so frustrating!
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Fitz
1 - 20 of 21 Posts
I’m guessing because it’s cost prohibitive . Novitec had a supercharger but they sold only a handful of units for the GT and then stopped - investment costs to develop and produce an aftermarket SC or Turbo are unlikely to generate any profits unless maybe half of all the GT owners out there buy one… And then how many owners are willing to shell out $ 25,000 or more for that ?
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13 Posts
That’s respectable. I was thinking it had to be something creative that was possible. I guess I may have to stick to the basics.
Even with twin turbos, which eliminate the “ turbo lag “ , it still muffles the sound - ok if you do that on some 6 cyl car, but a Ferrari N/A V8 ?! That’s just a huge sacrifice, IMO . Not to mention that turbos require a lot more attention , more frequent maintenance, and that’s even if you can manage to fit that in the GT engine bay. Novitec found a way to jam their SC in there , but not so sure you can fit twin turbos . I could be wrong though ..
Adding turbo(s) is doable. I don’t know if it really makes sense, but generally nothing in a car hobby makes sense.
Turbos can be remote mounted, so I’m sure there’s some spot they could be squeezed into. Space can always be “made” in a car. The pistons probably should be changed to lower the compression. More fuel is needed. ECU changes most likely needed.
Even though it is doable, it’s a lot of work getting everything to fit and work reasonably well. It’s even more work if you want to make the parts easily reproducible. This will end up costing a lot if the OP plans to just write checks. I estimate well into the 5-figures. If the OP can select component, design/fabricate and turn wrenches well in general, adding the turbos could probably be done for some 4-figure or a low 5-figure sum, along with hundreds of hours of time. The value of the car probably will either remain the same, or possibly decrease after the modifications, so money will not be recovered.
I hope the OP takes up the challenge and keeps us updated on the progress. Good luck!
Turbos can be remote mounted, so I’m sure there’s some spot they could be squeezed into. Space can always be “made” in a car. The pistons probably should be changed to lower the compression. More fuel is needed. ECU changes most likely needed.
Even though it is doable, it’s a lot of work getting everything to fit and work reasonably well. It’s even more work if you want to make the parts easily reproducible. This will end up costing a lot if the OP plans to just write checks. I estimate well into the 5-figures. If the OP can select component, design/fabricate and turn wrenches well in general, adding the turbos could probably be done for some 4-figure or a low 5-figure sum, along with hundreds of hours of time. The value of the car probably will either remain the same, or possibly decrease after the modifications, so money will not be recovered.
I hope the OP takes up the challenge and keeps us updated on the progress. Good luck!
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10,363 Posts
Sweet! It's our weekly stroker motor, turbo, supercharger internet build...Probably goes as far as the rest of them.. 
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227 Posts
It’s honestly got enough power for me, but to each their own. There isn’t much space for turbos to be mounted close to exhaust, but it could be done if the primary cats were removed, and turbos put in its place. There is space for a supercharger, but my concern would be the transmission being able to handle it… you’d need to swap out the input shaft at the very least, like the mustang guys do with their 6HP26’s
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10,363 Posts
So now we are modifying the transmission for our imaginary engine build??? 😄 Since our fantasy build has no monetary limits we are gonna need a custom carbon fiber driveshaft and this twin turbo beast is gonna need a way to slow down..So order up some custom carbon ceramic brakes while we are at it... Jason
Jason
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227 Posts
So… ummm… I think you’re forgetting that I’m a real engineer in here 🤭🤭🤭So now we are modifying the transmission for our imaginary engine build??? 😄 Since our fantasy build has no monetary limits we are gonna need a custom carbon fiber driveshaft and this twin turbo beast is gonna need a way to slow down..So order up some custom carbon ceramic brakes while we are at it...
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227 Posts
Sorry… I accidentally added some of the pics for an engine teardown I did… Long story short… I’ve done a complete engine and transmission tear down and rebuild… buuuutttt I wouldn’t feel totally comfortable swapping them into a real live car 🤣
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10,363 Posts
I think you missed my point...I pointing out that it was never gonna be done...More just like mental masturbation...I love engineers..I have made a good living fixing all the f-uped stuff they designed incorrectly on cars.... Jason
JasonAin’t that the truth happens in many aspects of daily walk of life.I think you missed my point...I pointing out that it was never gonna be done...More just like mental masturbation...I love engineers..I have made a good living fixing all the f-uped stuff they designed incorrectly on cars....
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227 Posts
Agreed, I hear you… I just know that every journey starts with a single step, even if it’s just words. I’m fortunate enough to not be a “desk engineer”, and I actually work on stuff… and just know that 9 times out of 10, it’s the “bean counters” that are the problem, not the engineers! 😂😂😂I think you missed my point...I pointing out that it was never gonna be done...More just like mental masturbation...I love engineers..I have made a good living fixing all the f-uped stuff they designed incorrectly on cars....
Long story short, I didn’t post it here, but I upgraded my transmission myself… new clutch packs, seals, bearings, etc… full overhaul of the mechatronic… and I’m using Ford’s lowest viscosity Mercon ATF… I just don’t have the patience of laying it out in instruction manual form for the forums.
Why can't we turbocharge or supercharge a Gran Turismo? Because that would muck up a great car. One of the things I love about the 4.7 naturally aspirated V-8 is the lack of anything with the XXX-charger that might go wrong - simpler under the hood. You can have a 300 plus hb V-6 Ghibli with a supercharger or a 400 hp V-8 GT with no supercharger. Easy choice. There is no substitute for cubic inches.
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554 Posts
Drive the new Granturismo Trofeo with 550PS and you will immediately realize that this turbocharging is nonsense. A few months ago I've driven the Trofeo on the racetrack. Such a car is and remains a heavy, sluggish and clumsy elephant, and even 700 hp won't help to get rid of this feeling. That's why the Novitec SC was also a flop. Not to mention the loss of the wonderful naturally aspirated V8 sound.
Yes, turbo cars have their place, but relatively heavy true GT is not it. I have a Pontiac Solstice with a turbo that fits it great, but it's a very small car with a 2.0L 4 Cylinder. Even then you have that turbo lag that you can't get around so far as I know. Also the simplicity, is awesome. I haven't had to fix anything on my GT yet but it looks like everything under the hood is relatively easy to reach.
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8,645 Posts
GT is a great car to work on. I find it quite an easy task for most things because it is pretty straight forward.
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