09-12-2019, 01:11 PM | #3221 |
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Chalk me up as another bypass valve victim. Car was frequently stalling at clutch in and idle would occasionally flutter. Otherwise car drove without major issues.
There was an audible hiss at idle (could be heard in the car if you listened closely, incredibly obvious out of the car with the hood open), pinched the vacuum hose leading to the bypass valve and it disappeared. Supercharger is just outside of warranty... |
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09-12-2019, 02:24 PM | #3222 |
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I think someone on here is looking into a homebrew replacement for the bypass valve. I also remember reading a post that mentioned Edelbrock might be developing a better bypass valve. So there is still hope.
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09-12-2019, 06:03 PM | #3223 |
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That'd be nice, if I receive the exact same part I'm guessing it'll fail again in another couple of years. Have the new part ordered, fingers crossed the install isn't too bad.
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09-12-2019, 06:40 PM | #3224 | |
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Quote:
Be careful removing the 3 nuts that hold it in. Edelbrock over tightened mines and it couldn't come out. Another member recently had the same problem too. Sent from my SM-G965U1 using Tapatalk |
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09-12-2019, 08:56 PM | #3225 |
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Thanks for the tip, yeah I saw the photos earlier in this thread. Just thankful I shouldn't have to pull the supercharger to perform the install.
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09-13-2019, 09:45 AM | #3226 | |
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Quote:
BUT, I moved the vacuum connector for the standard actuator from the back of the supercharger about seven months ago. It is now teed into the second nipple on the nose of the supercharger that is shared with the brake booster. I'm suspicious that sourcing the air from the back of the supercharger (which also feeds it positive pressure when under heavier throttle) is what is causing these to fail. You get a slightly softer ramp up when applying the throttle smoothly so it makes daily driving better. When you hit the gas hard you get the same level of performance. |
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09-13-2019, 01:30 PM | #3227 |
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09-13-2019, 01:44 PM | #3228 |
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how quickly can that linear actuator move, Toast? Any data logging for the edelbrock setup to know how much to move per change in pressure?
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09-13-2019, 01:45 PM | #3229 |
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I am absolutely not going to package and sell them. Too many people who have no business modifying their cars do so anyway because of what they saw on the internet and then get mad when something doesn't work out. I have no idea how tuners deal with the public. I will put up pics and descriptions of what I have done along with the very simple program to run on the arduino when I am done, but again, I don't have it fully connected yet. It is currently running in parallel with the stock actuator so that I can track its movement and response.
The tune will not need to be modified because the most aggressive action of the actuator mimics the stock kit setup. Everything else is just less boost, I would expect the tables for fuel must look at the MAP sensor and see that there is less pressure. I ran the Delicious tune even when my first actuator failed and I just had the BPV valve held open with cable ties and the car ran well, even at full throttle (just really slow). |
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09-13-2019, 01:55 PM | #3230 | |
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Quote:
I went with a P16-P linear actuator from actuonix. It moves at least as fast as the vacuum actuator since I got the tallest gearing (it takes almost zero force to move the valve itself). The movement vs pressure was taken from the kit actuator motion when applying vacuum with a handheld vacuum pump. The conversion of that vacuum reading to the voltage output by the MAP sensor is available online for a standard Bosch MAP sensor. |
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09-20-2019, 09:00 PM | #3231 |
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Having my edelbrock installed/dyno tuned on Tuesday. Wish me luck mates. May the good bypass valve gods guide my way. 2013 with around 50k.
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09-21-2019, 01:37 PM | #3232 |
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With the +17 models, sound differences aside, are there any differences between going with a catted UEL header and sticking with the OEM semi-EL unit when adding the E-Force?
Sorry if it's been covered already, but I've searched. |
09-25-2019, 01:28 PM | #3233 |
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Just wondering how install and dyno went, hopefully well and you're having a lot fun. I have to wait a few more thousand miles before I get one,
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09-25-2019, 06:06 PM | #3234 |
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Not sure, i dropped it off, probably wont be done till saturday. Tomorrow is probably better day for tuning due to the heat. Since im just over 50k im having spark plugs changed as well.
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