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Re: This is what my rebuilt 6-bolt consists of
How doesn't it work if it has been done right?
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Re: This is what my rebuilt 6-bolt consists of
this is a conversation beween rick shindley and cummins off of yahoogroups.com since i suck at typing here is exactly what happened to my freaking car! Sorry if this post is really long - BTW - cummins bad mouthed Shindley about tuning - just a warning for you.
Mr. Cummings: I tuned Brian's car and that act alone did not destroy his motor. His car has a 5-knob SAFC, EGT and an annoying a/f meter. It's very easy to tune a car with those items, and I did. It took just ten minutes. I have street tuned cars for years and have had no trouble doing so. It's more difficult to do than tuning on a dyno, but I don't have a dyno and I am willing to take the time. I am pretty good at it, actually. It's not that difficult if you know what you are doing. I understand that many do not know or trust themselves to do it and that's fine. I do know what I am doing so it's not a problem for me. For you to assume otherwise is an affront to me. Brian initially towed his car to me with a used (E-bay) 50-trim partially installed. It required the addition of the oil return tube, that was it, that and the installation of a Quaiffe. The E-bay 50-trim turbo he mounted on the engine was no good. It dumped oil into the exhaust and intake immediately upon startup. The turbo was junk. Brian then bought a new 50-trim and had it drop-shipped to me for installation. I then took the car out and tuned it up on the street. Like I said, that took about 10 minutes. All the time I was tuning the car there was some oil smoke coming from the exhaust. I attributed that to the former turbo dumping oil into the intake and/or exhaust for the few minutes it ran on the car. I figured the smoke would stop soon enough. I didn't drive the car long enough to see that happen, however. Brian picked up the car and off he went. I had managed to put maybe ten miles on it before he took it. I live in Big Lake and he managed to get into two Honda races with his new turbo and Quaiffe on his way back to Minnetonka. After those races he called me and said he saw smoke coming from the exhaust. I said it was probably the left over oil from the bad 50-trim. It seemed the correct analysis since the turbo was new. The next day he was driving the car when the engine seized! The car was towed to me for inspection and I found the #3 rod bearing spun. I built up a nice 1G engine with a 2G oil pump (so no need for DSMLink) for it and have it running now. The new 50-trim is on it and there is much smoke coming from the exhaust!!! I drove the car to get some gas and the smoke only got worse. After just five miles round trip to the gas station I found the new 50-trim to be dumping oil into the intake! What's more, the turbo now has more shaft play, including in and out (not good), and the compressor wheel is hitting the turbo housing and making fine aluminum particles to mix with the oil it spits into the intake! This from a new turbo with just 80 miles on it! FYI: the turbo oil feed line is new from RRE and intended for the purpose. The oil supply is from the 2G oil filter housing (where the stock turbo is fed from). The oil return tube is comprised of an aftermarket flange and brass 30 degree elbow directly at the bottom of the turbo, then a 3/4" hose from there to the oil pan, where the hose connects to what's left of the stock oil return tube. There is no restriction nor is the oil supply from an unfiltered source. In short, the turbo failed and I do not know why. It is unusual for a new turbo to dump oil like this one does, but I have seen it just once before in the last number of years I have been working on DSMs. I know it can happen but it just is rare. Still, that's what we have here; a new turbo that dumps oil into the intake for burning! I do not know the history of the old motor before it arrived. It ran strong and made no rod knocking sounds when I drove it for those ten minutes to tune it. EGTs were cool; nowhere near 1450 at WOT. (I tuned it that way (conservatively) so the young man wouldn't melt his motor!) Boost was limited to 17 psi, my favorite number. The only thing I noted was some oil smoke, like I said, and I attributed that to the E-bay 50-trim. So, if after this review of that car's recent history you can still attribute the rod bearing failure to my tuning the old SAFC on the street then I would like to meet with you for a "private consultation." You apparently have a great deal to offer on the subject of tuning DSMs that you have, until now, kept hidden. And I hear you can also explain how a sheep's bladder can be used to predict earthquakes! You truly have an amazing intellect! Rick (Dynoless in Big Lake) |
Re: This is what my rebuilt 6-bolt consists of
[QUOTE=BKs50trimGST]
I built up a nice 1G engine with a 2G oil pump (so no need for DSMLink) for it and have it running now. [QUOTE=BKs50trimGST] How does the 2g oil pump make it so you don't need dsmlink? I don't know too much but I have never heard that before. He must be talking about making it start and run, not for tuning. |
Re: This is what my rebuilt 6-bolt consists of
one more thing from yahoogroups - from shindley/raptor
Shindley post: The RRE feedline on this car is fine. It has no kinks. It is not the cause of the turbo's demise. The turbo may have had a piece of foam plastic stuffed inside the oil supply hole, I don't know. Nothing was apprent when I installed it. Shaft play was normal and the shaft rotated freely. It's just that ont he forst drive down the road the car began emitting a lot of smoke, which got worse as the miles went by. I intalled a big 16G last year that did the same thing. Brand new out of the box and it pumped oil directly into the intake and exhaust. The owner of this 50-trim got it through Elite. Elite saw to it that the turbo was drop-shipped to my door (thank you, Mo!). Now they are helping the owner get warranty service on the turbo. Elite is helping the guy big time in his hour of need. It's nice of them. The owner told me that Elite has seen a couple of turbos do the same thing after they installed them. If you so enough of these installs you will see an occassional failure. This is the second one I have seen in a few years. In the "other failure", repalcing the turbo fixed the problem. The oil feedline (an RRE feedline, too) remained. Basically, turbos can fail out of the box. It's not a common thing, but it does happen. No biggie. Raptor/Mike at QPR post: I will throw my .02 into this as maybe it will make sense. The effect of the being burnt does nothing, the lack of that oil to the engine since it is now making its way out the exhaust is the problem. Oil starvation will cause bearings to spin. I have a nice crispy 7 bolt rod on the wall from a very similar situation a couple years ago. Someone failed a turbo install, the oil didn't go back to the motor and in about 30 miles, a bearing spun from starvation. We got to assess the damage and fix it. The other thing that should be said is that knock and detonation can cause extreme engine damage, however, they will not cause a spun bearing directly. I don't believe in tuning on the street without decent logging capabilities, but I don't believe that was the problem in this case. This isn't to take anyones side, just my opinion for what it's worth. |
Re: This is what my rebuilt 6-bolt consists of
i believe he meant 1g engine with a 2g CAS, he didn't mean oil pump - i think that's what he meant by it, don't quote me on it though.
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Re: This is what my rebuilt 6-bolt consists of
He must have meant he used the 2g cas and crank sensor. If you use a 1g cas, you need to invert the cas with dsmlink and swap plug wires.
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Re: This is what my rebuilt 6-bolt consists of
God, this is the blind leading the blind fighting the blind in this thread.
The 1G CAS on 2G is known to have problems on a lot of cars without DSMLink. People used to modify the oil pump case when they did a 6-bolt in a 2G, before the wiring tricks were figured out. Anyone who has been into DSMs for more than 2 years knows of the old way. |
Re: This is what my rebuilt 6-bolt consists of
ecoli, i just pm'ed u, reply to me if you can, thanks
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Re: This is what my rebuilt 6-bolt consists of
<----- About to completly lose it!
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Re: This is what my rebuilt 6-bolt consists of
I don't understand how a bad turbo spins a rod bearing though. A bad motor can definately take out a turbo though. Turbos don't last very long with dirt or bearing material in the oil. Dirt in the oil is the #1 cause of spun rod bearing and new turbo failure.
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Re: This is what my rebuilt 6-bolt consists of
This thread is pretty rediculous overall. The same info was asked and answered on the old engines demise in the other thread. using the 7 bolt front case/pump on a 6 bolt requires modification and use of the 7 bolt pan etc, all so you can run the crank sensor. We don't do it simply because we havn't had a problem with the random misfire issue on any of the 6 bolt swaps we have done without DSMLink and until there is a problem for us using the 1G CAS, that is the method we will continue to use. This thread needs to die.
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Re: This is what my rebuilt 6-bolt consists of
Quote:
EDIT:I'm pretty sure its the timing belt thats causes the random misfire code as well |
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