996 3.4 to 3.6 engine swap
#1
996 3.4 to 3.6 engine swap
hi guys! its been a long time since the last time i was on here. but im back and wanted to share a little story with you guys.
i started a project car about 3 or 4 years ago. it was a 2001 carrera 996 that me and my father bought to do as a project car. the car was bought at auction and was striped to having nothing on it at all. no seats rugs or even wheels to sit on. went on to buy alot of parts from different crashed 996s that i could find at junk yards. and ended up paying close to nothing for a slight gt3 conversion. here is the link to the old thread i made a while back incase you wanted to read more.
https://www.6speedonline.com/forums/...me-advice.html
anyway the car was going along fine until it finally came time to put in an engine and trans. like the old thread states i was looking for a good gt3 engine to use to stick into the car. and i had actually found a pair i could use. found a destroyed track ready gt3 that was mashed in on the front all the way to the steering wheel. needless to say i got it at a good price to use it on my carrera as donor. this happend all during last year and was gana start posting my progress when i started to disassemble the car and pulling out the engine. unfortunately i did not get the chance to do so, as my father was diagnosed with stage 4 lung cancer. and was given 2 years to live. just so i dont make this into a sob story ill keep it short, because of the chemo we had to put the project on halt because he still wanted to be a part of the build but simply didnt have the energy. and eventually because of the medical bills and other complications i was forced to sell of the engine and trany i already had. my father recently passed in late december. and as a momento to him i have decided to at least finish the car in his memory.
so to get to the point of this venting rant i just made, i just bought another destroyed carrera with a fully intact 2004 3.6 engine and a manual trans. i plan on doing a full conversion from the donor to my 2001 carrera. and as im sure some of you know this is no easy feat.
i have done extensive research and spoken to several specialists and was given a few options in which to proceed. and ive decided to do a full wire housing swap from the 2004 carrera to mine. and i shall be posting my progress as i go incase anyone on here decides to do the same. because i know alot of ppl have tried and for some reason almost no one has posted anything about it. so if you have any questions dont be afraid to ask!
i started a project car about 3 or 4 years ago. it was a 2001 carrera 996 that me and my father bought to do as a project car. the car was bought at auction and was striped to having nothing on it at all. no seats rugs or even wheels to sit on. went on to buy alot of parts from different crashed 996s that i could find at junk yards. and ended up paying close to nothing for a slight gt3 conversion. here is the link to the old thread i made a while back incase you wanted to read more.
https://www.6speedonline.com/forums/...me-advice.html
anyway the car was going along fine until it finally came time to put in an engine and trans. like the old thread states i was looking for a good gt3 engine to use to stick into the car. and i had actually found a pair i could use. found a destroyed track ready gt3 that was mashed in on the front all the way to the steering wheel. needless to say i got it at a good price to use it on my carrera as donor. this happend all during last year and was gana start posting my progress when i started to disassemble the car and pulling out the engine. unfortunately i did not get the chance to do so, as my father was diagnosed with stage 4 lung cancer. and was given 2 years to live. just so i dont make this into a sob story ill keep it short, because of the chemo we had to put the project on halt because he still wanted to be a part of the build but simply didnt have the energy. and eventually because of the medical bills and other complications i was forced to sell of the engine and trany i already had. my father recently passed in late december. and as a momento to him i have decided to at least finish the car in his memory.
so to get to the point of this venting rant i just made, i just bought another destroyed carrera with a fully intact 2004 3.6 engine and a manual trans. i plan on doing a full conversion from the donor to my 2001 carrera. and as im sure some of you know this is no easy feat.
i have done extensive research and spoken to several specialists and was given a few options in which to proceed. and ive decided to do a full wire housing swap from the 2004 carrera to mine. and i shall be posting my progress as i go incase anyone on here decides to do the same. because i know alot of ppl have tried and for some reason almost no one has posted anything about it. so if you have any questions dont be afraid to ask!
#6
Story time.
Alright gentlemen, as promised its story time. So i managed to drop the engine and trany from the donor to do the ims swap and upgrade the rear main seal. First i started with the ims, let it be know that the following gave me a mini heart attack and almost brought me to tears, as i was cranking the engine by hand to firing position for cylinder one (something you need to do before you manually luck the engine so it does not lose timing) i nodiced that it would stop and seize up before it made a full turn. My heart started to sink but i didn't panic, started cranking it in the other direction and it made an almost full turn before it seized up at almost the same spot. At this point I was ready to die, I had no idea if the engine has a valve locked up or if it was something more serious. Long story short, I decided to disassemble the engine to inspect the I sides. And the second I took the intake off, 3 cylinders were completely full of oil and one was mixed with oil and water. Had to pump out most of the oil with a pump and then take out the spark plugs to let gravity do the rest as I slowly cranked the engine. And once the oil was gone the engine would do a full rotation without a problem. Gana end up sticking alot of carb cleaner to try and finish cleaning the internals tomorrow. I'll keep everyone posted on the build.
Last edited by formerfrost; 02-09-2017 at 05:45 AM.
#7
Here is a pick of the valves from inside one of the intake tubes that were filled to the brink with oil.
anyone have any recommendations on what I can put inside the engine to try and clean it out and drain what ever else mite be left in there? I heard transmission oil would be good. But since everything drains out through the plugs I know the oil will hit the valves and don't want them to stick or anything.
anyone have any recommendations on what I can put inside the engine to try and clean it out and drain what ever else mite be left in there? I heard transmission oil would be good. But since everything drains out through the plugs I know the oil will hit the valves and don't want them to stick or anything.
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#10
It should be a fairly easy swap since you have a complete car. Transfer the wiring harness, computers and associated parts over.
Good luck with the build and sorry to hear about your father.
Good luck with the build and sorry to hear about your father.
#11
Latest update guys.
As of now I've taken apart the car completely and looked it over. I've already run into a problem. I noticed the gen 1 has 4 fuel lines and the gen 2 only has three. From what I can tell the problem is that the gen 2 has everything related to fuel internally stored in the fuel tank. Meaning the fuel pump the regulator and everything else. While the gen 1 has a few components outside the tank. Like the fuel filter and the regulator. Because the gen 2 has it all internally and in the same place it only has 1 line to feed the engine and 2 returns. While the gen 1 has the same lines plus an extra line to feed the engine as well. So now I may need to transfer all the fuel lines along with the wire housing of the gen 2. And if it gets this complicated I mite just abandon the build TBH :/
Anyone got any suggestions or tips for me on this? I'm a little stumped. I could just rig the two lines into one but not sure how that would effect performance
As of now I've taken apart the car completely and looked it over. I've already run into a problem. I noticed the gen 1 has 4 fuel lines and the gen 2 only has three. From what I can tell the problem is that the gen 2 has everything related to fuel internally stored in the fuel tank. Meaning the fuel pump the regulator and everything else. While the gen 1 has a few components outside the tank. Like the fuel filter and the regulator. Because the gen 2 has it all internally and in the same place it only has 1 line to feed the engine and 2 returns. While the gen 1 has the same lines plus an extra line to feed the engine as well. So now I may need to transfer all the fuel lines along with the wire housing of the gen 2. And if it gets this complicated I mite just abandon the build TBH :/
Anyone got any suggestions or tips for me on this? I'm a little stumped. I could just rig the two lines into one but not sure how that would effect performance
#12
You understand that 3.4L is VarioCam and 3.6L is VarioCam plus right? There is a ton of wiring to do the swap. (HVAC/instrument cluster/Can bus etc)
Renntech forum has a few posting about it.
Renntech forum has a few posting about it.
Last edited by B8_RDC; 02-17-2017 at 04:01 PM.
#13
Now it's just plugging it in to see I just haven't taken off the 3.4 harness yet
#14
OK guys, so I've done some research and came up with an idea, I think if I can get the fuel rails from a 3.4 I can bypass my girl line problem. Plus if I can change the cylinder heads of the engine I mite be able to make the engine work like a 3.4 but still have a 3.6L. I would probably have to change the chains as well. But with those mods ur should be able to just fit right in and start without a problem
#15
Latest update guys.
As of now I've taken apart the car completely and looked it over. I've already run into a problem. I noticed the gen 1 has 4 fuel lines and the gen 2 only has three. From what I can tell the problem is that the gen 2 has everything related to fuel internally stored in the fuel tank. Meaning the fuel pump the regulator and everything else. While the gen 1 has a few components outside the tank. Like the fuel filter and the regulator. Because the gen 2 has it all internally and in the same place it only has 1 line to feed the engine and 2 returns. While the gen 1 has the same lines plus an extra line to feed the engine as well. So now I may need to transfer all the fuel lines along with the wire housing of the gen 2. And if it gets this complicated I mite just abandon the build TBH :/
Anyone got any suggestions or tips for me on this? I'm a little stumped. I could just rig the two lines into one but not sure how that would effect performance
As of now I've taken apart the car completely and looked it over. I've already run into a problem. I noticed the gen 1 has 4 fuel lines and the gen 2 only has three. From what I can tell the problem is that the gen 2 has everything related to fuel internally stored in the fuel tank. Meaning the fuel pump the regulator and everything else. While the gen 1 has a few components outside the tank. Like the fuel filter and the regulator. Because the gen 2 has it all internally and in the same place it only has 1 line to feed the engine and 2 returns. While the gen 1 has the same lines plus an extra line to feed the engine as well. So now I may need to transfer all the fuel lines along with the wire housing of the gen 2. And if it gets this complicated I mite just abandon the build TBH :/
Anyone got any suggestions or tips for me on this? I'm a little stumped. I could just rig the two lines into one but not sure how that would effect performance
Sorry about your Dad, I lost mine last October & miss him daily!