BGB Motorsports

You must have a serious axe to grind with us given how you draft your comments and what you have said about us and our products and/or services. If you don't mind, I would like to use facts and not speculation:

1.) PDK has been bolted to 3.8L 997.2 engines, 3.8L 997.2 X51 engines, 3.8L 991 engines and 3.8L 991 x51 Power Kit engines and has been sourced from 987.2 3.4L PDK cars, 981 2.7L PDK cars and 981 3.4L cars. That's 4 different motors across 3 types of PDK boxes with varying torque levels with ZERO issues since 2012. Now for some speculation: we have more time testing this config on the race track and on the street than anyone else in the world with the exception of maybe the factory.

2.) Despite your belief that we don't care and would just assume modify your car and send you down the road to fight out warranty concerns with your dealerships, of the 20 + conversions we have done, whenever there has been any sort of issue or problem, every single time I have reached into my pocket and fixed the problem by paying to bring the car back or paying the expense at the dealership. Why would we do anything that would come back to bite us? This might be your speculation but it goes against historical, factual behavior. I can gladly give you names and contacts if you want to confirm how I've spent hours on the phone with dealerships so they're not concerned about the swap when the person comes in for other work or campaign updates.

Sorry for the OT rant but I've spent thousands of dollars over the years to be a sponsor here because it's the best source of Porsche specific information but potential customers read these threads; I don't agree with someone's opinion that we're just here to collect money and don't care about the longevity of our work. Being a forum sponsor we are protected against folks who look to attack our work with this type of speculation so please keep that in mind.

While everyone is quick to point out the warranty exposure from a 3.8L swap, the reality is that the motors & gearboxes come with a 2 year manufacturers warranty; a dealership will address the drivetrain warranty the same way he would if you installed a set of air filters, a throttle body upgrade, a set of headers, an ECU flash or short ratio gears. Whether you have a different motor, or any of those parts, they're not going to give you free warranty work for a Check Engine Light's being on and if they decide to do so, it will be at their discretion.

ExMB

1) I don't have an axe to grind with you but lets look at it. Porsche warrants their engine and tranny for 4 years. You list the engine as 2 yrs but don't specify anything on the tranny.
2) You are correct in the sense that bolt on stuff has an effect on the warranty.
3) Lets be fair about your half cage. Yes you sought me out with your prototype half cage which by you own admittance, as understood by me, fit very tight against structural pieces thereby placing/creating additional stresses and needed to be completely repainted. From my post in the GT4 forum you must have been aware of the vehicle I was looking for and that you also couldn't guarantee fitment as 100%: post link. When I mentioned the German price I could get one for new, and you never mentioned pricing I am unable to comment on the ridiculous discount you stated above, you left me with the impression that you were getting very upset, tone off your voice, etc and thats when I decided that all was said and I terminated the call.
4) You have a place in the modification world with satisfied customers and some people will therefore seek you out. But your reply post with your comment about protection, IMHO, probably could have been worded better.

BGB Motorsports

I don't want to go further off topic in a thread about an upcoming car than we have. Clearly there was a communication breakdown and if i misinformed you, then i am sorry. While in May i said i wasn't sure, since then, i have spoken to an owner with a GT4 and our 4-point bar overseas. As for the case of the used piece, I offered to repaint the existing bar for you because it was used and was scratched by things like surfboards, golf clubs and car parts given that it's been in my street car for 18 months. I tried to PM you the price but your PMs dont work and before i could tell you that i wanted to sell it to you for $1000 on the phone, you hung up on me. My only reason for bringing up the tightness of the fitment was because it's so snug, when you remove it, the headliner is fatigued. I don't know of anyone who sells products like this that offers that up; i was just doing what humans do who like to be honest and forthcoming. Let's just say it's water under the bridge and things like take care and good luck with your upcoming GT4 and leave it at that. I would PM you this but i don't seem to be able to so best of luck and cheers.

GTgears

I guess you could say the Cayman gearbox "runs like a FWD" but not really. It runs like a midengine transaxle.

But the more important thing is one really needs to be careful about rumours posted on the internet. Internally a 981 and a 991 PDK are identical with respect to mechanicals, gear width, etc. the ONLY difference is with respect to which direction the cut the pinion drive gears to spin. That's it. I could take the gear stack out of a 991 and move it over to the Cayman box and have Carrera gearing in a car. These gearboxes are super over built from the factory. I wouldn't shy away from putting 600whp through any PDK. That kind of power won't break it.

To make a PDK-S for a Cayman would be a very simple engineering project. Only a few parts would have to be changed. Will they do it? No idea. But can they? Yes, quite easily by using the same parts and design sharing in manufacturing that they use on the existing PDK gearboxes.

ExMB

Thanx,

the reason I said rumor is based on this ZF link which lists the torque numbers but nobody really confirmed if those PN trannys are used in Porsche's.

GTgears

Even if those were the same as the Porsche gearboxes isn't a 991 making 390nm at 5600 for peak power? Means that the weakest gearbox on the list can handle it according to their ratings. But we need to keep in kind the Porsche gearboxes are proprietary. I wouldn't make any assumptions about whether those are the same or different.

Oems always rate their stuff for less than it can really take. If they didn't we wouldn't have all these 800whp 996tts running around.

ExMB

Nope, IAW with PAG tech data its 440 Nm for the 3.8. And yes, a good manufacturer applies a safety figure in order to cover themselves; its good design practice.

GTgears

You talking GT3 engine? There's no way in hell they will ever put that in a Cayman. I've said before I don't think the GT4-RS isn't coming. But if it does come it won't get the GT3's heart.

ExMB

Nope, click the red link

GTgears

Sorry, your red doesn't show as a hotlink on my phone. I see it now. Regardless, there's no issue with the power levels in my eyes, especially if they gave the car the PDK-S like guts are hoping.

ShakeNBake

Why put a PDK in the GT4RS? They already have the GT3. If you want a PDK - WOW, the GT3 is quite a car to behold, you will be giddy-happy with it combined with 9K RPM. I suppose they might do it because they can - but AP has been harping on the idea of a drivers car, so would be odd to take a step backward. Either way, I don't really care as long as it has a manual as an option.

I'd expect the GT4RS to have cup level aero (like the GT3RS vs. Cup) and an engine more like what the GT4 race car will have - who knows, maybe dry sump, maybe new crank and connecting rods, maybe better cooling..etc - like the GT3RS has over the GT3, which was seemingly needed for the GT3 Cup. Once the GT4 race car is officially announced, the RS will be basically the same minus the sequential gearbox...if it has one.

GTgears

I think the GT4 racecar is going to disappoint you.

Beantown Kman

I can't believe what I am reading here. BGB and Guard Transmission have been two of the most forthright and unwavering supporters of the RL brethren. John and Matt: you guys really don't need to defend yourselves here. Seriously...

tcsracing1

I dont think we will see a cayman RS.... just as much as chance of seeing a Macan RS IMO.

I think the GT4RS is confused with the GT4cup that is coming.

As much as the GT4 Cup might be a fluff racer, it is on my radar 110%

mooty

i dont know much about gearboxes, but john T + matt M, the gearbox will be right

"GT4cup will disappiont you"...
i am so happy to hear that.
my bank is empty and i have margin calls and yearning for air cooled.... i dont need a GT4 cup.