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Old 05-03-2021, 10:37 AM   #4075
AKITA
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Enough to slightly feel it, and not enough to lose sleep over. It's just like the "higher center of gravity" some people mention. You will NEVER feel it. And if you do, some professional racing teams are looking for your talents.

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Yeah had mine now for about a year, only about a 1500 miles on it. I had a DT tune then had a tuner get a hold of it. The drag you don't feel that much. When you are hitting close to max torque just before 3k (yes it does peek a little more at higher rpm), you just don't care. It's there and if you've driven it NA enough you might notice but it's no big deal.

I disagree slightly on the weight or CG issue. I think it's a weight concentration issue more, but certainly the CG as changed because of it, especially with this SC. You feel it in high speed corning or slalom courses. I think that's why many choose a Vortech or Jackson for racing applications as it doesn't concentrate the weight or have it as high, but I know some using the EB on track too.(me) While I've removed enough weight in various areas of the car that about equal the additional weight of the SC, it's now concentrated in the front and it makes it want to understeer a little. Day to day driving no you don't notice. 120 mph high speed turns you feel it trying to break loose more and requires some suspension adjustment to settle it. Why I've always recommended upgraded coilovers with this SC. My hypermax do a pretty good job.

Piggy backing, I do think as I did a year ago the Dbox is not ideal. It's a band aid fix at best and my tuner was pretty much able to take care of the flutter. It may still have a little at the 6.5k to 7k and my tuner was totally cool with building a secondary remote MAP sensor set up if I wanted. He wasn't cool with just relocating the MAP on a single setup as he said that does affect other MAP inputs (probably temp) but a dual setup he thought would be cool. I didn't at the time but I may if I flex fuel it. It gets hot down south and running E85 would keep the block a little cooler on track, why I haven't tracked it that much. I feel sorry for B_T who just burned a hole in the block. Again daily driving, doesn't matter. Had to do over again, I might do it differently but might not. Each application has pros and cons.
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Old 05-04-2021, 04:22 PM   #4076
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Hey guys,
I'm relatively new to the forum. I'm contemplating buying an Edelbrock SC but I'm curious about how the updated bypass valve performs now. I read a lot of threads about how the bypass valve needs to replaced regularly. Has anyone purchased an installed the newer kit with the updated actuator ? This is the only issue that is preventing from pulling the trigger on the purchase.
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Old 05-04-2021, 04:27 PM   #4077
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Hey guys,
I'm relatively new to the forum. I'm contemplating buying an Edelbrock SC but I'm curious about how the updated bypass valve performs now. I read a lot of threads about how the bypass valve needs to replaced regularly. Has anyone purchased an installed the newer kit with the updated actuator ? This is the only issue that is preventing from pulling the trigger on the purchase.
I haven't had to replace my updated valve, but it's honestly not that bad to do. Think I replaced it one time and then preemptively with the updated version. supercharged for 50k miles now.
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Old 05-04-2021, 04:29 PM   #4078
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I haven't had to replace my updated valve, but it's honestly not that bad to do. Think I replaced it one time and then preemptively with the updated version. supercharged for 50k miles now.
That's good to hear. Have you installed any additions to the bolt on kit ? When did you buy your kit ?
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Old 05-04-2021, 04:35 PM   #4079
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Thats good to hear. Have you installed any additions to the bolt on kit ? When did you buy your kit ?
Just about every bolt on you can buy and a built block now after the original failed at 45k into being supercharged. Definitely get the catch cans and an oil cooler.
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Old 05-04-2021, 04:38 PM   #4080
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Just about every bolt on you can buy and a built block now after the original failed at 45k into being supercharged. Definitely get the catch cans and an oil cooler.
For sure..
Sorry to hear about thr engine failure. Any particular reason for the failure.. Also there is this theory that the higher low end torque on the Edelbrocks and Harrops make FA20 stock engine vulnerable ? Relatively compared to a JRSC ?

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Old 05-04-2021, 04:41 PM   #4081
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Just about every bolt on you can buy and a built block now after the original failed at 45k into being supercharged. Definitely get the catch cans and an oil cooler.

B_T you were running a smaller pulley and bad E85 when it blew right? Just curious and I hope your new block treats you well. Did you go with IAG and are they building the whole long block?


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Old 05-04-2021, 08:32 PM   #4082
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Originally Posted by dynarun55 View Post
Hey guys,
I'm relatively new to the forum. I'm contemplating buying an Edelbrock SC but I'm curious about how the updated bypass valve performs now. I read a lot of threads about how the bypass valve needs to replaced regularly. Has anyone purchased an installed the newer kit with the updated actuator ? This is the only issue that is preventing from pulling the trigger on the purchase.
None seem to have failed since the major update. It's still fairly recent, but Edelbrock backs their product.

PM to order.
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Old 05-04-2021, 08:33 PM   #4083
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My Edelbrock SC is coming the 11th…I am just using it for a DD with backroad drives so keeping it in the mid 250s.

I’ll be adding an oil cooler and catch can in the next couple months, but it does not get very hot in the PNW
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Old 05-04-2021, 09:22 PM   #4084
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None seem to have failed since the major update. It's still fairly recent, but Edelbrock backs their product.

PM to order.
Will do soon. Thanks for the response.
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Old 05-05-2021, 09:08 AM   #4085
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For sure..
Sorry to hear about thr engine failure. Any particular reason for the failure.. Also there is this theory that the higher low end torque on the Edelbrocks and Harrops make FA20 stock engine vulnerable ? Relatively compared to a JRSC ?
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B_T you were running a smaller pulley and bad E85 when it blew right? Just curious and I hope your new block treats you well. Did you go with IAG and are they building the whole long block?
I wasn't doing anything but running on cruise control with a E85 when it blew. I was an hour and a half into a two hour trip at the time. Stock pulley size. Never figured out exactly what caused it. I believe the rods were weak due to some misfires from poor quality gas earlier in the week. I'm running on a stock compression IAG closed deck built block with a thicker head gasket and 2.75 pulley now.
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Old 05-06-2021, 12:30 PM   #4086
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The instructions mention 50:50 coolant. What does that mean? Audi VW coolant? Toyota rated coolant?
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Old 05-06-2021, 01:01 PM   #4087
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The instructions mention 50:50 coolant. What does that mean? Audi VW coolant? Toyota rated coolant?
They aren't picky. Use whatever you put in your radiator.
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Old 05-06-2021, 02:00 PM   #4088
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They aren't picky. Use whatever you put in your radiator.
I used a different color than what is in my radiator to make troubleshooting leaks easier in the future.
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