VK45de automatic transmission

Discuss topics related to the VH41DE, VH45DE, VK45DE, and VK56DE engines.
car50
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Does anyone know what automatic is mated to the VK45de? I'm working out a swap into my pathfinder and I'm more curious than anything. To be emissions legal I must use either a VH41 or VK45de. The VK seems to be the better choice at the moment. I know the VH trannies will take the tx10 transfer case. I guess I could do a divorced setup on the vk or use something from one of the newer suv's.


Q45tech
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It is illegal to install a larger displacement engine than one sold in the model in US. The Federal Clean Air Act specifically prohibits it!

Increased emissions [VOLUME of exhaust].................it may pass the ratios of HC, CO, Nox but it still produces more green house gases = CO2.

Whether your state pickups up on this or whether your insurance company does is a gamble?

The VK uses the 5 speed AT depending on model year the TCU may be integrated within AT housing or external in 2002-2004.

At 2006-2007 engine and transmission from an FX/M45 may be easiest as TCU is internal saving wiring.

car50
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Car: 98 pathfinder

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I checked already on insurance and legality already. The insurance only wants proof that I left the frame intact. I already went through the EPA's Federal Clean Air Act. There is an addendum on "engine switching" that simply states it's ok as long as the engine is from the same year or newer vehicle and retains the emissions controls installed from the manufacturer in a "certified configuration". So I can use a larger engine as long as the emissions controls and ecu are all in place with their original transmission. I even checked on the state level with the emissions stations and I'm good to go. Sounds like the VH41de would be the easier swap at the moment with the transmission being more adaptable to the existing mount locations.
Modified by car50 at 10:39 PM 6/4/2007

Q45tech
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Think you are mis reading the Clean Air Act.....................there is no way a swapped Larger displacement engine can comply as by definition no V8 were in Pathfinders in US. There is a section about engine families I4, V6, V8...no way a v6 and a v8 are in the same family.

Emissions now is all about grams per mile of carbon dioxide generated.

defrag010
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i know there are alot of legalized v8-swapped RX7's in california.. and rx7's didn't come with v8's in them.

I think it depends on the state you're in, and if you have to pass emissions. Here in OK, there are no emissions, so as long as the engine year is the same or newer than the year of my car, the car will be 100% legal.

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sijoko
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You ever wonder why they make a big deal about vehicle emissions yet every year huge wildfires through out the country happen due to gross mis-management on the part of the government. Hmm, which releases more greenhouse gases......a few modified vehicles or acres and acres of land on fire for months at a time? Hypocrisy and fear-mongering.

Q45tech
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Wild fires are natural, the ability for man to put them out is the unnatural abusive destructive part.

But the law is the law. How individual states enforce Federal Laws is often the problem.

At worst in the far democratic future they could just confiscate and crush all violators hopefully without the owner inside.

Nycist
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defrag010 wrote:i know there are alot of legalized v8-swapped RX7's in california.. and rx7's didn't come with v8's in them.

I think it depends on the state you're in, and if you have to pass emissions. Here in OK, there are no emissions, so as long as the engine year is the same or newer than the year of my car, the car will be 100% legal.
older rotary engines werent that more sophisticated than the rotaries they have in lawn mowers and chainsaws today. those old rotaries produced a hell of alot of carbon emissions themselves.....not that far of a cry from a v8.

maxnix
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Q45tech wrote:Wild fires are natural, the ability for man to put them out is the unnatural abusive destructive part.
Quite an issue in the West as Forest Service rules for years prevented any fire, so dense underbrush that would normally be burned out by small natural fires became engulfing conflagrations when they finally did catch producing much hotter fires and more damage to large trees not usually damaged by periodic small natural underbrush fires.

Q45tech
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My aunt was an excecutive at US Forest Service until retirement, for 20 years I had to listen to her dire warnings.

22 years from now emission may not matter:http://impact.arc.nasa.gov/news_detail.cfm?ID=173

"The 270-meter diameter asteroid 99942 Apophis continues to be an object of interest, and the calculated probability of impact has varied as additional tracking data have been utilized to refine its orbit. Presenters discussed the predicted 2029 close Earth flyby and the associated “keyhole,” the small region in space during the 2029 approach where Earth’s gravity would perturb the asteroid’s trajectory such that the subsequent 2036 encounter would be an Earth impact. A deflection effort for Apophis prior to the 2029 keyhole would require more than four orders-of-magnitude less momentum transfer than after 2029, and good tracking data during the 2012-2013 apparition of Apophis is particularly critical for refining impact probabilities and deciding whether a deflection action is required before the 2029 close approach. As a note, there may be several deflection techniques, including slow-push techniques, that could be applied prior to 2029; after that date, deflection options narrow to more energetic techniques—probably nuclear explosives. The Arecibo radar, which is scheduled for possible closure, is the most powerful instrument available for improving orbital accuracy and physically characterizing many NEOs making close passages to Earth.

http://www.aero.org/conference...r.pdf

T45
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How does a thread go from transmissions to asteroids?



Just buy a newer Q45 with the VH41 and swap over the engine trans and bolt the trans up to your t-case. Easiest bet but finding a VH41 Q will cost you a bit more than an older VH45 Q.

defrag010
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Nycist wrote:
older rotary engines werent that more sophisticated than the rotaries they have in lawn mowers and chainsaws today. those old rotaries produced a hell of alot of carbon emissions themselves.....not that far of a cry from a v8.
oh yeah, i'm quite aware of that.. that's why the vh45 is going into my rx7.. lol

I was merely pointing out that it apparently isn't illegal in california at least to put an engine that was larger than the original, as tech said it's illegal to, and that it doesn't matter in states who don't have emissions.

Q45tech
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It's a Federal Law that is not properly enforced by the states!

If and when or if ever it does become enforced due to democractic pressure from global warming is the question or if California suddenly starts looking for tax revenue by singling out V8 for a surcharge vs green house gases.

Most countries have an annual displacement tax to reregister except US/Canada and South America. This helps get older inefficient cars off the road.

Life as we know it will change once Carbon Dioxide is measured and taxed!

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David Steele
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I laff at this thread.

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Mettler
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Q45tech wrote:Life as we know it will change once Carbon Dioxide is measured and taxed!
That's when you know it's time to move out of the US.

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sijoko
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Mettler wrote:That's when you know it's time to move out of the US.
I've contemplated having to make that choice one day and New Zealand is on the list. Unfortunately, you guys don't make it easy to bring my Q with me. I guess I could just have one imported from Japan but then I would have to start all over with the mods. But if things get that bad, I'm sure that getting a car out of the country will not be on the priority list. Who knows what things will be like in the future? The whole world is going to hell in a handbasket.

maxnix
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Aus and NZ would be a blast if they would just convert to LHD like Sweden did a few decades ago.

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David Steele
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Florida emissions free :-)


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