14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHVision Motorsports
Leading reported evidence
Clean piston tops decarbonized
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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 · Original poster
All the fuel delivery system cleaned, piston tops decarbonized.
Leading evidence: 'Clean piston tops decarbonized' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean piston tops decarbonized' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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 · Original poster
Plugs coils, heat shields were changed 6,000 miles ago.
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 contain suggestions
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.
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 contain suggestions
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.
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 contain suggestions
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.
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.
14 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.
Generation: 20261026T144035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Has anybody had any experience with them? I met someone that had a rebuilt by them and then I found this car for sale with a 4.2. When I was involved in Motorsport I knew quite a bit about flow work (flow bench for heads) port polish, bigger valves, extrude hone etc. A few people suggested Hoffman automotive for the head work, rebuild. I�m doing all my research, if I take the engine down I�ll do some unique things to it. One of my friends has a lambo and then he has a 1,200 hp hell cat, he is obsessed with becoming the fastest hellcat. I have access to his mechanics but I�m not certain they know this much about our engines. Any feed back info will be appreciated. Happy mother�s day
it�s really out of this world what he and his company have achieved. I�ll like to find out what they can do with the 3.4 cable throttle engine. So far all I have hear it�s taking it to 3.6, FSI states that these cars are hard to tune, most shops have told me that they don�t tune these at all, maybe these guys know some tricks.
Not sure about Lambo stuff but they are great for Porsche stuff. My buddy actually races in POC and uses them extensively. They do all the work on his car as well as race day support. He highly recommends them and has used them for several years.
IMO. There is no magic tune for these air breathing engines. Bigger bore, stroke, head work are the only things that can really improve output. Then some exhaust work. Jake at FSI really knows these engines. But Dwain at Vision is right up there.
I had a great conversation with Steve today at vision. Anyway I had also spoken with Jake and participated in the FSI webinar, it was longer than 4 hours. I don�t need an engine but I want to know all the options. Vision was prepping 20 cars for track day at willow springs. Anyway there are noticeable differences between what FSI does and what vision does, vision will give you a warranty but in my case if I go to their 3.8 from my 3.4, I need a center mount radiator. It is going to run hotter. I also need a different clutch and flywheel. Anyway Steve asked questions about my car and said drive it, when it gets to that point then you make the decision, but he clearly stated that most customers when they start hearing the prices they just give up and say they buy another $20,000 to $24,000 car. Vision is using chromoly, not nickies. You can also test some of their stuff. Jake runs a tight ship and it�s real successful but one of the reasons I�m retired is because I don�t take orders from nobody now. Seems to me that vision is real flexible and will ask you exactly what you want. They�ll do everything in house. I would love to see their new country club garage by the track.
If you�re talking about building a 3.4 m96 engine, just don�t. Nobody can make those engines work long term, including Duane who happens to be one of the best in the business. He�s also an honest guy; my guess is that conversation was a very nice way of saying it�s not worth it. Much better off taking the money and buying a 997.2 (well, before Covid)
If you�re talking about the cayman 3.4�s, have at it. Vision has made some monster race motors that seem to last and tune very well.
my original3/98 engine is in great shape. Was able to hit 60 in 4.9 seconds (been at 160) All the durametric stuff, fuel trim, cam deviations, 0 over revs 2, manometer shows AOS in perfect shape. No oil consumption. Plugs coils, heat shields were changed 6,000 miles ago. All the fuel delivery system cleaned, piston tops decarbonized. Anyway I already met a guy with 300,000 miles on his. I drove a convertible for sale with 250,000 miles, saw another one with 167,000 miles and in great shape. I just have been learning more about these cars. Also clutch IMs and rms where done 25,000 miles ago. All the work with the exception of the fuel stuff was done by previous owner, plus hr springs, fab speed headers and exhaust, new brake pads and rotors, all fluids flushed changed. I pd $18,000 for the car 4,000 miles ago. What Steve was saying was because of all the work that has been done and everything is in perfect working condition drive until it starts showing symptoms. I�m a maniac on maintenance with my cars and make them last a ton, sold a personal 1981 300 turbo diesel with over A million miles. Sold an 1985 735i BMW with over 500,000 miles. I�ll learned about this engine and it is not going to die because of lack of maintenance, or that it has been driven incorrectly. I�m not tracking the car, I�m driving it once or twice a week with a trip to triple digits for fun. I�m a retired tribologist, used to formulate motor oils. 997 maybe after 2006, thanks.
Nice article about them - thanks for posting. I really like seeing people rebuilding that are actively participating in Motorsport and the abuses that brings.
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