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Here is the Link To X51 Information

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YOUR RESEARCHHere is the Link To X51 Information

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best present of the year

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Reported cause

It was a couple of days before xmas and the owner and I opened each box like it was the best present of the year.

Here is the Link To X51 Information
Frequently discussed work

Install x51 kit o your non x51 engine

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Or you installed an X51 kit o your non X51 engine....I am just stating what Brandywine Porsche said in another forum about the 3.4L X51 engine.

Here is the Link To X51 Information
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Leading evidence: 'best present of the year' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'best present of the year' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Install x51 kit o your non x51 engine' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Install x51 kit o your non x51 engine

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
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Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

Or you installed an X51 kit o your non X51 engine....I am just stating what Brandywine Porsche said in another forum about the 3.4L X51 engine.

Here is the Link To X51 Information
Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Install x51 kit o your non x51 engine

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

Or you installed an X51 kit o your non X51 engine....I am just stating what Brandywine Porsche said in another forum about the 3.4L X51 engine.

Here is the Link To X51 Information
Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

best present of the year

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

It was a couple of days before xmas and the owner and I opened each box like it was the best present of the year.

Here is the Link To X51 Information
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

32 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

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POST 1 / ORIGINAL POSTEROriginal post

Gents, Several people have asked me for the link to the information on the Euro X51 kit that is fitted to my car. There is a picture and full parts list. I think the picture alone half justifies the near $20K price tag! http://pistonheads.com/gassing/topic...=372397&hw=x51

POST 2Original post

That's all you need to show to some of the nieve people on this board that beleive you can get 25hp from a CAI or Mufflers! That picture is worth a thousand words. THAT my friends is what it takes to get 25hp the "real" way.

POST 3Original post

Stop posting pictures like this.. it makes me CRRRAAAZY with desire.

POST 5Original post

Wow. I didn't know anyone would really spend the money for an X51 retrofit. For 10 grand I would just trade cars. -Charles

POST 6 / ORIGINAL POSTEROriginal post

Charles, I agree, but you have to cast your mind back to 1999. Certainly in Europe, you could not get a GT3 for love nor money. The first owner of my car was unable to get a GT3 in time, so he went for the next best thing in his mind. He specced the X51, PSE, GT3 bucket seats in leather, MO30, LSD etc. The car was even delivered without rear seats and belts...

POST 7Original post

Charles, Visit our own 997 forum and see the 997S guys running out to upgrade to the X51 to take them from 355 to 380. -Paul

POST 8Original post

When I rebuilt my 996 race car as a 3.6L I had to order the engine and X51 separately. I'll never forget the day it showed up at the race shop that built my car. It was a couple of days before xmas and the owner and I opened each box like it was the best present of the year. The picture doesn't show that it also includes a software upgrade. As for power, I have a 320 hp dyno sitting around somewhere. That's RWHP btw. Try getting there with a plenum. p.s. IT'S FOR SALE!

POST 9Original post

Now wouldn't it be fun to hand finish the ports and match the intake runners before the install and pick up a few more HP?

POST 11Original post

where did you get those pedals? they look awesome

POST 12Original post

Thanks for posting that here. Are you sure that is the 3.4L kit? (I know the OP's car was a 3.4, but he didn't appear to claim it was his kit either, as his was factiry fit as well) Some parts appear to be missing. The 3.4l X51 kit includes the oil pump and pickup tube similar to that sold by PMNA.

POST 14Original post

I have the 40th which has the X51 power kit. Does it also increase the red line. My car's read line is a tad over 7k, what is the normal 996's?

POST 15Original post

IIRC, for the 3.4l, the X51 raised the redline from 7100 to 7200. I believe it is the same for the 3.6l.

POST 16Original post

It is the 3.6L kit. The oiling kit as optional on the 3.6L. I'm not sure about the 3.4.

POST 17Original post

The parts are nicely polished from the factory and fit great. I'm sure you could improve them slightly but not a lot.

POST 18Original post

Are you positive the 40th Anniversary has the X51 package.

POST 19Original post

Also keep in mind the X51 for the 3.4L engine WILL NOT fit on the US model 3.4L cars....I forget exactly why, but something about the US vs European differences which make it impossible to add it to our cars. This came up on 6 speed online when someone wanted to order a new engine and saw a 3.4L x51 engine listed by Porsche and wanted to put it in his US car. Wont work...

POST 20Original post

Yes, X51 was standard on the 40th cars = 345 HP.

POST 21Original post

Yes Newport, I think it was just that the euro version wasn't smog certified in the US. At least that is what I was told.

POST 22Original post

I think it was more about the cylinder heads used in the 3.4L X51 having something extra, or needed something extra so it would PHYSICALLY not work on a US 3.4L car. It wasnt a smog certification as not all US states require one and that wouldnt put off some people in states that did...like people that bought superchargers in CA....lots of them, and they proably will never get a smog certification.

POST 23Original post

for that kind of money i would go supercharger.

POST 24Original post

Newport, I looked all around and see no information stating this. Only thing mentioned on RennTech is that early 99 cars had a different piston design which required you to swap them out... but that is misleading since the X51 parts list for the 3.4 includes new pistons required to clear the more aggressive exhaust valves. -Paul

POST 25Original post

Damn! I wish you had told me that last year! I never would have had the kit installed if I knew it were impossible! Certainly. Won't fit. Don't need anyone else even trying. Any 3.4l X51 parts that may still exist won't fit your engines anyway, so don't even buy 'em. Leave 'em for me for spares.

POST 26Original post

Actually, the description in the manual, which isn't really the X51 parts list, lists pistons, but they aren't a part of the kit, nor are they necessary, at least for an '01.

POST 27Original post

So you have a 3/4L X51 ENGINE from Porsche? Or you installed an X51 kit o your non X51 engine....I am just stating what Brandywine Porsche said in another forum about the 3.4L X51 engine. They said it was not a possibility for US cars, stated why....I took them to be pretty reliable, if they are wrong great as a COMPLETE 3.4L X51 engine was under 10k.

POST 28Original post

Based on the number of header manifolds - that must be a 12 cylinder version

POST 29Original post

Installed 3.4l X51 kit onto no X51 US 3.4l engine (2001). It might actually be harder, though no where near impossible, to put the 3.4l X51 engine in a US car.

POST 30Original post

I was going to mention that, but got distracted looking for the AC suction pipe.

POST 31Original post

IMO... smarter to just order a 3.6l X51 crate motor and sell the stock 3.6l on EBAY. Net with labor savings is probably better and you get a new zero hours engine out of the deal.

POST 32Original post

Make that get a crate 3.8L X51...its not that much more than the 3.6L.

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