AES 408 with PT91.5
10-19-2013, 04:41 PM
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AES 408 with PT91.5 Well I'm kind of at a loss for words at the moment, got the car running a couple days ago finishing up some little stuff but today while on the dyno, my tuner called me and had some concerns. First off the specs on the car
Specs-408@10:5:1
pump e85 ( just conservative tuning right now)
pt91.5
4l80e with circle D converter
Gears-3.50
Its a AES 408 that was built to take 20 pounds of boost and spin it to 7k on C-85.
Today while changing springs on the wastegate he noticed the converter was EXTREMELY loose. The last pull it made 940 to the wheels but the mph at 7k rpm was only 122.29 at the end of the run so clearly the converter is way to loose.
Now when I bought the AES engine I had them break it in. Today while making some runs on a conservative pump e-85 tune, I was told after the last pull the car started smoking a lot on deceleration after a wot pull. Also you will see on one of the graphs on the holley system that the oil pressure is ready 100psi... has anyone else had that problem on a AES engine before? I unfortunately was not there to see what color smoke it let out but was told it was enough to fill up the whole shop. Now as far as the psi...has anyone else had theirs read that high before? just doesn't seem right to me! My car has been down for almost 2 years so when it finally was done I'm running into all these problems, extremely discouraging. I'll keep posting the more we figure out and what final number will be with pictures and videos but for now I'm just trying to get insight by others who could give me some answers with the smoking issue, I know the converter will have to be sent off to be tightened up.
Specs-408@10:5:1
pump e85 ( just conservative tuning right now)
pt91.5
4l80e with circle D converter
Gears-3.50
Its a AES 408 that was built to take 20 pounds of boost and spin it to 7k on C-85.
Today while changing springs on the wastegate he noticed the converter was EXTREMELY loose. The last pull it made 940 to the wheels but the mph at 7k rpm was only 122.29 at the end of the run so clearly the converter is way to loose.
Now when I bought the AES engine I had them break it in. Today while making some runs on a conservative pump e-85 tune, I was told after the last pull the car started smoking a lot on deceleration after a wot pull. Also you will see on one of the graphs on the holley system that the oil pressure is ready 100psi... has anyone else had that problem on a AES engine before? I unfortunately was not there to see what color smoke it let out but was told it was enough to fill up the whole shop. Now as far as the psi...has anyone else had theirs read that high before? just doesn't seem right to me! My car has been down for almost 2 years so when it finally was done I'm running into all these problems, extremely discouraging. I'll keep posting the more we figure out and what final number will be with pictures and videos but for now I'm just trying to get insight by others who could give me some answers with the smoking issue, I know the converter will have to be sent off to be tightened up.
10-19-2013, 06:07 PM
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So first off. DO you know whether your pressure reading is accurate ? Have you confirmed the sensor reading/calibration is correct vs a mechanical gauge ?
What oil ? What pum/relief spring ?
What oil ? What pum/relief spring ?
10-19-2013, 06:07 PM
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So first off. DO you know whether your pressure reading is accurate ? Have you confirmed the sensor reading/calibration is correct vs a mechanical gauge ?
What oil ? What pum/relief spring ?
What oil ? What pum/relief spring ?
10-19-2013, 07:14 PM
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As far as I know the reading was accurate, it was the holley efi dominator that kept showing the 100psi. Now the oil is the VR1 AES recommends in their motors. I'm still waiting to hear back what color smoke it was but according to him it wasnt a light puff which would leave me to believe possibly rings but it was broken in by AES. Also that last pull that did the 943 was on 12 pounds and a conservative tune. He cant turn it on kill yet because of the being to loose. I'll try to get some pictures of the oil drain on monday.
10-19-2013, 07:29 PM
#6
Look for oil in your compressor inlet and the turbine, sounds like oil might be getting past the seals in the turbo with that much pressure and it will do it after letting off WOT lots of times. My PT76 does it after coming off WOT sometimes, I have 80psi oil.
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10-19-2013, 08:15 PM
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I will have that checked out on Monday, from what I was told was besides that everything else is running fine normal temps and psi until the wot pull
10-19-2013, 09:17 PM
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This is my first big build so forgive me if this is a dumb question but would big injectors cause high oil pressure? I have 220's which i know are big but they are turned down, im just trying to figure out all the types of possible reasons as to what would cause that high of oil pressure
10-20-2013, 10:58 PM
#13
The oil pressure should have nothing to do with it smoking on decel. If it is excessive, I'd be looking into a ring seal problem or a valve guide and/or valve guide seal problem.
Forget a compression check, leak it down so you can tell if/where there is a problem.
Forget a compression check, leak it down so you can tell if/where there is a problem.
10-21-2013, 07:02 AM
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I say check the turbo for oil on the compressor wheel. High oil pressure could have caused a seal to be blown or letting oil by if the drain isn't getting rid of the oil fast enough.
10-21-2013, 05:03 PM
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the turbo is brand new so I would hope oil didn't go through the seal but I will definitely look into it, thanks for the input I'll have it checked out.
10-22-2013, 10:46 AM
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a little update, we will be checking the turbo tonight to see if any oil got by the seal and also I got several fast response emails from Chris at Circle D. He said to lock the converter up and send that data to him but it does need to be restalled because the cars making more torque than he expected. Also we are setting her on kill tonight and going to let her eat and see what she does, looking forward to some good numbers. It will be gulping C85 and be set on 20 pounds spinning to 7000, so I hope the trans holds up.