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SOLVED. Trans shopped machined a step into the pilot of the converter so it resembles the stock converters pilot, and now its sweet. The stepped shoulder allows the converter to pivot if it needs to rather that being held fixed to the crankshaft angle. I assume that this means I still have...

How much ignition timing are you running at 20 psi around 4-5000 rpm? Sick numbers man!

Well it always does it, but at about 2000rpm and up it gets fast/violent enough to shake the whole car like the engine and trans is about to fall out. The vibration resonates precisely with engine rpm, constantly.

Using solid motor mounts for years and a energy suspension poly trans mount. At an idle the engine visibly shakes, when you get up around 2000rpm, the car actually makes noise it resonates so bad.

So just had .010" offset dowels made. Got the 4l60 bellhousing from .012" to under .005", Bolted up the th350 and its exactly the f*cking same. Im so f*ckin pissed with this swap, i feel like driving to Maryland and throwing the converter, flexplate and adaptor threw there front window. So...

Every car is different, theres no universal tune. Its even more difficult when you post no information about your setup.

No, i have had two different A340's in the car without issues. Going to call ATI tomorrow and talk with them more because i was at work when the called me the other day and didnt really have time to talk much about the issue.

Herd back from ATI yesterday and they told me the plate is fine. I guess im going to need offset dowels or something. I need to bolt up a toyota bellhousing to the motor so i can indicate runout on that to make sure the dowels in the motor are fine. Im getting very tired of this.

They said the same thing, they said they make 20 at a time on a cnc drill that holds the plate in a fixed position the entire time. They said if one was off it would be likely that 20 would be. They also said they never had anyone have a problem either. A friend of mine works at a place that...

Sent the plate off to ATI yesterday so Monday I'm gonna give the a call and hopefully get the bad news that the plate is off. This will actually be good news because I finally found the problem. Of that's the case they have the plates in stock and i could be back up and running next week!

In the video it looks like im doing it properly, right Ian? If so then i guess i finally found the problem. Ill be contacting ATI in the morning and likely shipping out the plate to them to have it double checked. Hopefully they find that its wrong and ill have a new one in route back to me...

OK, Went to the trans shop to see if they have a TH350 case to cut up, Came up with the idea of bolting up a 4l60 Bellhousing to the adaptor and running an indicator around the center bore as thats what centers the trans to the bellhousing. Did so and found .025" runout. As shown below in a...

Yea im trying to find a th350 case that i can cut just rear of the pump mounting hole so i can do something similar to the second picture. I think it would be the best way. That is unless i mail it to ATI first. Sidenote, IF my motor had been line bored and the crank was sitting higher in the...

I was going to but its so tight in there i dont know if i have anything to mount the indicator to. I assume that your referring to the center hole of the plate? I asked the ATI tech about that and he checked with the guy that makes the plates and he said it should be within .005 all the way...

Converter tested fine. .004 runout, considered acceptable. I'm tired of things testing fine. It's very strange. The owner of the shop (highly well known as a guru) said that if the alignment was off it would have torn up the front pump in a very short amount of time He said I covered all the...

I dont have the equipment for that but im going to have the converter checked for runout in a few minuites at a local converter shop. This is the swap from hell. :D

Directly just as the stock converter is. When i say Snout i consider that the part that sticks into the pump in the front of the transmission. I would consider the part that goes into the crank the Pilot. Incase i was causing confusion.

Weather is warmer, I pulled the trans AGAIN and installed the converter to the flexplate and ran the motor. No vibration felt. Rules out balance of the converter and the likelihood of the converter spinning off center from the motor from excessive pilot runout. At this point i feel it has...

Rockauto.com Sells those types of things pretty cheap......

I believe there was a hint of sarcasm in that statement......