Originally Posted by FAhmed

I used to think a final drive solution would be ideal, but changing gears 2-5 accomplishes everything you could want. A shorter final drive would shorten gears 1 and 6 as well. 1st gear is inconsequential in most situations and not worth shortening, and most people would want a longer 6th gear if anything (for highway use). Not to mention the reliability issues that have been brought up time and again

Originally Posted by eXpensiveGears

Not to derail the thread, but any thoughts that a shorter final driver + a longer 6th would be a good solution? I think Autoquest Motorsports has that solution.

Originally Posted by juicedus

Since you're in the chicagoland area, @JAhmed, I'd love to meet up sometime to hear how it sounds once it warms up!!

Originally Posted by daaa nope

@JAhmed the instant this thing is back in town - we need to meet at MW.

Originally Posted by Ksdaoski

Congrats! I'm in Milwaukee, would love to see this beast!

Originally Posted by Rick DeMan

Here is Tony singing to 500 wheel HP 🤣

Originally Posted by Rick DeMan

We do not have a final drive, never will. It simply will never be strong enough. Changing the ratio makes the pinion gear way too small and fragile.
Back in 2001 Porsche Motorsport offered a shorter R/P for the mighty GT3 R/RS race cars. They came with a disclaimer that they were only good for 15 hours of race use. They certainly did break after that time limit!

Our gearing change is the single best thing you can do to any GT4/Spyder. From a performance and driving experience perspective its the biggest and best bang for the buck outside of the 4.5L.

I have not experienced the clutch issue first hand so not sure what the issue could be. Our lightweight clutch/flywheel package has never experienced that on close to 60 cars now.

Originally Posted by Rick DeMan

I can only post what I see with the tools I have available. I don't have a "PORSCHE" measuring stick to use for comparison purposes. I use a Dyna Pack Dyno, so I can build a data base of baseline for HP and TQ from some of the best cars Porsche has produced in stock form….

Originally Posted by Rick DeMan

We do not have a final drive, never will. It simply will never be strong enough. Changing the ratio makes the pinion gear way too small and fragile.
Back in 2001 Porsche Motorsport offered a shorter R/P for the mighty GT3 R/RS race cars. They came with a disclaimer that they were only good for 15 hours of race use. They certainly did break after that time limit!

Our gearing change is the single best thing you can do to any GT4/Spyder. From a performance and driving experience perspective its the biggest and best bang for the buck outside of the 4.5L.

I have not experienced the clutch issue first hand so not sure what the issue could be. Our lightweight clutch/flywheel package has never experienced that on close to 60 cars now.

Originally Posted by nothingman

stock 718 GT4 on your dyno for a before/after comparison to your 4.5L?

Originally Posted by colnagoG60

I was thinking of going this route...however I was informed that the 6th gear replacement was not ideal with new ratio(s), and nor very robust. That's "if" the 6th gear is coming from VW diesel.

Originally Posted by 998R

Hi Rick,

Do you offer the gear box parts for sale for fitment by others? Potential Australian customer asking…..

Cheers,
Harry.

Originally Posted by NiteCrawlr

Would the new gears 2-5 you recommend on this thread be the same for stock engine as well as the 4.5L conversion, or would you recommend going with even shorter gears for stock engines?

Originally Posted by JAhmed

Car will be heading into storage for obvious reasons upon its return home next week, but she will be out and about often come the first warm day in March!!! Always happy to link up with other enthusiasts, especially @daaa nope so we can work on maximum corruption