Boxster "S" 6 speed trans Options

[Cracker]

I do not have those pieces on my box...it looks like they go to the later G86-21 box.

Cracker

Tony,

What I don't have is in the first photo, which is needed per the PET, from what I can see.
Am I wrong?

[partwerks]

Generally the same, slight difference in CV flanges, shifter mechanisms maybe? One true difference if you can find one is get the one out of a TDI, taller gears, diesels make torques, and do not like to spin fast, thus taller gearing.

Sad news they are darn near unattainable in the states, VW never imported a 6 speed TDI Passat for public consumption. You need to find people over in the UK that will be willing to send one over. TDIclub has a couple importers in the vendor section that will do that. Canada might also be a shot.

Or would it be better just sticking with the 6 speed Boxster trans?

[partwerks]

I'm guessing that the adapter plate I have for the 5 speed, won't work with the 6 speed, even though I had them put the holes in for a 6, was probably a waste of time??

[Cracker]

Ok. I called Kennedy Engineering today for you...I do not have good news. According to them, the base Boxster 5-speed adapter plate will not work with the Boxster S 6-speed. It does not matter whether or not you drilled the mounting holes.

The "kit" they sell includes everything needed to mate the 6-speed an LS engine. It costs about $2,800 + shipping.

Good luck!

Tony

[partwerks]

Ok. I called Kennedy Engineering today for you...I do not have good news. According to them, the base Boxster 5-speed adapter plate will not work with the Boxster S 6-speed. It does not matter whether or not you drilled the mounting holes.

The "kit" they sell includes everything needed to mate the 6-speed an LS engine. It costs about $2,800 + shipping.

Good luck!

Tony

Thanks Tony!

I am still waiting for a reply back from kitcarchassis.com, if the starter I now have, will work on the 6 speed, and my current adapter plate.

So far this is what I have heard back:
Yes, the 5 and 6 speed use the same holes. The early 6 speed uses a couple of less holes than the 5 speed and later 6 speed but they are located in the same places. You just need the correct clutch for which ever transmission you are using.
I will have to check part numbers but I think you will need a full clutch kit.

[Robarabian]

Okay.. someone knew this was going to get asked.... but has anyone mated a Boxter S transmission to a Subaru Turbo motor? (EJ 20 or EJ 25)

[914forme]

yes it has been done

[FL000]

Generally the same, slight difference in CV flanges, shifter mechanisms maybe? One true difference if you can find one is get the one out of a TDI, taller gears, diesels make torques, and do not like to spin fast, thus taller gearing.

Sad news they are darn near unattainable in the states, VW never imported a 6 speed TDI Passat for public consumption. You need to find people over in the UK that will be willing to send one over. TDIclub has a couple importers in the vendor section that will do that. Canada might also be a shot.

Or would it be better just sticking with the 6 speed Boxster trans?

Depends, I am installing an Audi 01E 6 speed mainly because I have a gen 1 SBC and and I wanted the taller gearing to match my RPM limits better. I think in the scheme of things it will be a worthwhile investment once complete. I would hav went with the Boxster otherwise for price.

[partwerks]

yes it has been done

These pictures are of a 6 speed version, but the 5 speed will use the same adapter plate and flywheel. (Subie)

I wonder, since the 5/6 can both be used on that adapter plate I have then.
Would the starter on the 5 be in the same postion as the 6?

[andys]

Ok. I called Kennedy Engineering today for you...I do not have good news. According to them, the base Boxster 5-speed adapter plate will not work with the Boxster S 6-speed. It does not matter whether or not you drilled the mounting holes.

The "kit" they sell includes everything needed to mate the 6-speed an LS engine. It costs about $2,800 + shipping.

Good luck!

Tony

Thanks Tony!

I am still waiting for a reply back from kitcarchassis.com, if the starter I now have, will work on the 6 speed, and my current adapter plate.

So far this is what I have heard back:
Yes, the 5 and 6 speed use the same holes. The early 6 speed uses a couple of less holes than the 5 speed and later 6 speed but they are located in the same places. You just need the correct clutch for which ever transmission you are using.
I will have to check part numbers but I think you will need a full clutch kit.

Tony's got it right. The next statement in the post may confuse some, so......the 5 and 6 speeds use the same hole pattern if the 5 speed (Boxster) is the 012 version, and the 6 speed (Audi) is the 01E version. If I recall correctly, the 012 and the 01E use different clutch kits. They have nothing in common with the Boxster S 6 speed.
Kennedy (KEP) is 5 minutes from my office.
Andys

[partwerks]

Ok. I called Kennedy Engineering today for you...I do not have good news. According to them, the base Boxster 5-speed adapter plate will not work with the Boxster S 6-speed. It does not matter whether or not you drilled the mounting holes.

The "kit" they sell includes everything needed to mate the 6-speed an LS engine. It costs about $2,800 + shipping.

Good luck!

Tony

Thanks Tony!

I am still waiting for a reply back from kitcarchassis.com, if the starter I now have, will work on the 6 speed, and my current adapter plate.

So far this is what I have heard back:
Yes, the 5 and 6 speed use the same holes. The early 6 speed uses a couple of less holes than the 5 speed and later 6 speed but they are located in the same places. You just need the correct clutch for which ever transmission you are using.
I will have to check part numbers but I think you will need a full clutch kit.

Tony's got it right. The next statement in the post may confuse some, so......the 5 and 6 speeds use the same hole pattern if the 5 speed (Boxster) is the 012 version, and the 6 speed (Audi) is the 01E version. If I recall correctly, the 012 and the 01E use different clutch kits. They have nothing in common with the Boxster S 6 speed.
Kennedy (KEP) is 5 minutes from my office.
Andys

According to the guy I got the adapter plate from (kitcarchassis.com)

Yes, everything is the same except the clutch. The 6-speed has a larger input shaft.
I would just need the clutch kit. (Spec SP892S) Clutch, PP, TOB, and he wasn't sure about the pilot bearing??
Said that 99-04 Boxster "S" are more favorable with taller gears.

That would use a Spec SP892S for a stage 2 or a SP893S for a stage 3. The S on the end indicates a sprung clutch disc.
I buy my clutches from this company, http://sohiperformance.com/

[Cracker]

Good luck.

Cracker

[Tdskip]

Nothing to add except WOW guys, some neat engineering work. Thanks for the thread.

[dakotaewing]

I must be getting old... $650 for a mass production clutch and pressure plate for a street car just seems absolutely ridiculous.
Got any other options?
I'm fairly confident I have the same adapter plate and flywheel for my car -

Thom

Ok. I called Kennedy Engineering today for you...I do not have good news. According to them, the base Boxster 5-speed adapter plate will not work with the Boxster S 6-speed. It does not matter whether or not you drilled the mounting holes.

The "kit" they sell includes everything needed to mate the 6-speed an LS engine. It costs about $2,800 + shipping.

Good luck!

Tony

Thanks Tony!

I am still waiting for a reply back from kitcarchassis.com, if the starter I now have, will work on the 6 speed, and my current adapter plate.

So far this is what I have heard back:
Yes, the 5 and 6 speed use the same holes. The early 6 speed uses a couple of less holes than the 5 speed and later 6 speed but they are located in the same places. You just need the correct clutch for which ever transmission you are using.
I will have to check part numbers but I think you will need a full clutch kit.

Tony's got it right. The next statement in the post may confuse some, so......the 5 and 6 speeds use the same hole pattern if the 5 speed (Boxster) is the 012 version, and the 6 speed (Audi) is the 01E version. If I recall correctly, the 012 and the 01E use different clutch kits. They have nothing in common with the Boxster S 6 speed.
Kennedy (KEP) is 5 minutes from my office.
Andys

According to the guy I got the adapter plate from (kitcarchassis.com)

Yes, everything is the same except the clutch. The 6-speed has a larger input shaft.
I would just need the clutch kit. (Spec SP892S) Clutch, PP, TOB, and he wasn't sure about the pilot bearing??
Said that 99-04 Boxster "S" are more favorable with taller gears.

That would use a Spec SP892S for a stage 2 or a SP893S for a stage 3. The S on the end indicates a sprung clutch disc.
I buy my clutches from this company, http://sohiperformance.com/

[partwerks]

I must be getting old... $650 for a mass production clutch and pressure plate for a street car just seems absolutely ridiculous.
Got any other options?
I'm fairly confident I have the same adapter plate and flywheel for my car -

Thom

Sounds like Kennedy is even more expensive.

Not sure if Renegade would sell just the clutch kit, or not?


$2450 914 LS Boxster S Adapter kit and clutch package upgrade charge (normally $2995 without basic kit order)

Ok. I called Kennedy Engineering today for you...I do not have good news. According to them, the base Boxster 5-speed adapter plate will not work with the Boxster S 6-speed. It does not matter whether or not you drilled the mounting holes.

The "kit" they sell includes everything needed to mate the 6-speed an LS engine. It costs about $2,800 + shipping.

Good luck!

Tony

Thanks Tony!

I am still waiting for a reply back from kitcarchassis.com, if the starter I now have, will work on the 6 speed, and my current adapter plate.

So far this is what I have heard back:
Yes, the 5 and 6 speed use the same holes. The early 6 speed uses a couple of less holes than the 5 speed and later 6 speed but they are located in the same places. You just need the correct clutch for which ever transmission you are using.
I will have to check part numbers but I think you will need a full clutch kit.

Tony's got it right. The next statement in the post may confuse some, so......the 5 and 6 speeds use the same hole pattern if the 5 speed (Boxster) is the 012 version, and the 6 speed (Audi) is the 01E version. If I recall correctly, the 012 and the 01E use different clutch kits. They have nothing in common with the Boxster S 6 speed.
Kennedy (KEP) is 5 minutes from my office.
Andys

According to the guy I got the adapter plate from (kitcarchassis.com)

Yes, everything is the same except the clutch. The 6-speed has a larger input shaft.
I would just need the clutch kit. (Spec SP892S) Clutch, PP, TOB, and he wasn't sure about the pilot bearing??
Said that 99-04 Boxster "S" are more favorable with taller gears.

That would use a Spec SP892S for a stage 2 or a SP893S for a stage 3. The S on the end indicates a sprung clutch disc.
I buy my clutches from this company, http://sohiperformance.com/

[partwerks]

Would this clutch work, or is it heavy enough?

https://www.summitracing.com/parts/luk-20-0...odel/roadster-s

Also, what is the difference between the Boxster S, and the Boxster S Cayman?

[partwerks]

The Boxster S trans is the G86-20. All of those have the same gearing. I have an LS3 with that trans. Tony @Cracker runs an LS7 with his. No issues with over 500 hp.

Is there any difference between the Boxster S, and the Boxster S Cayman?

Also, was wondering about the TDI version from UK in comparison?

[Mike Bellis]

There are two (2) different 6 speed bellhousing bolt patterns.

One type looks similar to the 5 speed. The other is completely different and almost perfectly round (O), where as the 5/6 speed type is like a slanted "A" pattern.

The "O" type is more often found on the LS motor. The "A" type is more often found on the SBC.

Which transmission type do you have? What adapter kit do you have? SBC and LS are completely different and nothing swaps.

Sounds like you're trying to put a square peg in a round hole.

This has been going on for a year or more. I'm not understanding why you don't just buy the correct crap and finish the car. You're going to waste more money trying to fix the problem the just spending the $3k for the right kit. At the end you probably spend the $3k too.

If you don't know what you're doing and your builder does not know what he is doing... You are wasting your money! Box up all the parts and ship it to someone that does. Embrace the suck...

[SirAndy]

Embrace the suck...

(IMG:style_emoticons/default/biggrin.gif)