Edelbrock SC Questions I Had (that were answered by buying one).

[rubbercow]

As you've likely noticed this forum has a wealth of knowledge right at your fingertips. It also has some knowledge that is right on the ragged edge of opinions like every other forum, conversation, or anything else ever.

Below are the questions I had that were either answered through searching and reading (you've tried searching right?) or asking people with such. Each bugged me prior to buying, but I bought it anyway. Maybe they'll help someone?

Note that my opinions are worth no more than any other semi-anonymous low-post pleeb. I am in the first 1000 miles and as such the below answers may change some:

1. Why should I buy the Edelbrock over XYZ? If you don't trust your installer, don't trust yourself or generally don't trust the internet, the Edelbrock 1556 is the most complete kit I've seen. It had every single thing I needed, pre-cut to size and ready to go. Install and drive. It also has three pulleys available, with one pushing the limits of the SC. The install was about nine hours for one competent person with about an hour of additional help-labor. The install manual is fairly amazing.
2. Do you need an aftermarket clutch? Yes. I fought it too. Three different tuners on this forum, including Cobb have reported slippage on the dyno with the stock clutch. I went with the ACT SB7-HDSS. I considered Competition Clutch, Exedy and all the rest. I've had bad experiences with ACT, yet still went ACT. It doesn't suck much (daily driver in traffic). Burn out your stock clutch and replace it with something with more torque hold. Side note: Several posts on here debated whether the stock clutch was really Exedy. Yes it was on mine. No doubt. It clearly says Exedy on my '14 BRZ. Secondary note: Some posts claimed that the stock flywheel is dual mass. It wasn't on my '14 BRZ. Single mass solid, for sure.
3. Do you need an aftermarket (OSGiken) limited slip differential? Yeah, probably. I didn't take the plunge. I just couldn't justify the spend right now.
4. Can you get away with 225 Michelin PSS tires in the rear? Before I go on: I wanted my car to look and feel stock where possible. I didn't want it tracking on every groove like my shi**y Maserati or to lose toss-ability. I daily drive it for 90 minutes minimum per day on the crappiest roads around. The answer is: No. You really shouldn't go with 225. I'm slowly learning not to kick on the traction control in every damned hard-turn. On the bright side, fundamentally this kit accents the car's tendencies. I was worried that it would be a peel-out-nightmare but it is not. However, mild acceleration in turns will whip the rear out, and don't even imagine doing anything other than a ridiculous smokey-wheelie from a standing stop. Don't floor it in second either. Don't floor it in third on some road surfaces. I haven't lost traction in forth yet - I have hopes that I never will. I may stagger it with 245+, I may not, sigh.
5. Is the out-of-box tune any good? Mehhh. It is okay. It hesitates sometimes. It enjoys revving up to 2500 RPM at stoplights randomly. It bucks occasionally if you let off the throttle too fast and then WOT it. It stinks when you first start it. What I liked is that the kit was installed, the ECU was flashed, and I was able to daily drive it immediately. Maybe this line is really a duplicate of #1 above. I'll be having it tuned eventually though.
6. What's the power like? I haven't had it on the track yet, I haven't dyno'd it yet and I really don't know. Did it eliminate the torque dip? Absolutely. Does it feel much, much, much, much better? Yes. TBD.
7. Did it murder the gas mileage? I tend to lead-foot and row the gears a lot. I'm filling up at the same frequency I was before. It must be in the 10% delta range at most.
8. Does the extra hundred pounds in the front feel noticeable? No. Not to me for spirited daily driving. Your track experience may vary. In the spring I'll update with my own track time.
9. What is Edelbrock's tech/customer service like? Oddly, I did not have the success story of some on the forum. It took them four days (two of them business days) to send my tune. Technical support was a run-around on it. Technical support was also a pain-in-the-ass to reach several times (ring, ring, mother-f**ing ring). The operator would not budge without an exact part number, even for sales prior to buying it.
10. Anything I should know? Yes. You can find below-MSRP offers by contacting some of our forum sponsors privately.

Lastly, do I like it? Hell yeah.

[scottman]

Nice writeup dude.
Totally my fav SC system for this platform.

[Kodename47]

Originally Posted by rubbercow

Do you need a limited slip differential? Yeah, probably. I didn't take the plunge. I just couldn't justify the spend right now.

The car comes with one.

[bfrank1972]

Originally Posted by Kodename47

The car comes with one.

im assuming he means something like an os giken that will put down power better than the stock torsen.

Sent from my SM-N920V using Tapatalk

[gtengr]

Originally Posted by rubbercow

Why should I buy the Edelbrock over XYZ? If you don't trust your installer, don't trust yourself or generally don't trust the internet, the Edelbrock 1556 is the most complete kit I've seen. It had every single thing I needed, pre-cut to size and ready to go. Install and drive.

Did you add clamps to the stock EVAP hose? I don't think any aftermarket kits come with the extra clamps, and it is a crucial step.

[B T]

7k on stock clutch and no slipping here. I also run both stock tires/rims and 225 RS3 track rims on the rear. The 215s are a bit small but I love the 225 with a good compound.

[gramicci101]

4. Why stagger your tires instead of going 245 square?
5. And maybe more for @CSG Mike, does the Delicious Dbox address these issues, or was that made to address something else?

[CSG Mike]

Originally Posted by gramicci101

4. Why stagger your tires instead of going 245 square?
5. And maybe more for @CSG Mike, does the Delicious Dbox address these issues, or was that made to address something else?

4. He's probably only looking for more rear traction only. Going square increases the limit of the entire car, but ultimately does not change the balance, causing the rear to still step out. Based on the post, I believe the OP prefer the front to lose traction first, as does most of the general public.

5. Sort of. A Delicious FNG will address the issues; the D-box smooths out signalling, unlocking extra output "for free".

[rubbercow]

Originally Posted by bfrank1972

im assuming he means something like an os giken that will put down power better than the stock torsen.

Correct! Thank you.

Originally Posted by gtengr

Did you add clamps to the stock EVAP hose? I don't think any aftermarket kits come with the extra clamps, and it is a crucial step.

Oops, good point. Yes, and as you said it had to be added. Thusly, the kit is not 100% complete afterall.

Originally Posted by CSG Mike

4. He's probably only looking for more rear traction only. Going square increases the limit of the entire car, but ultimately does not change the balance, causing the rear to still step out. Based on the post, I believe the OP prefer the front to lose traction first, as does most of the general public.

Well said. Although, I will add that my #1 reason to consider staggered is that narrower front tires 'track' less on the heavily grooved roads I drive on daily. In the end, I will probably go 245 square, and try to live with the tracking. I'm giving the 225 square awhile though.

[CSG Mike]

Originally Posted by rubbercow

Correct! Thank you.



Oops, good point. Yes, and as you said it had to be added. Thusly, the kit is not 100% complete afterall.



Well said. Although, I will add that my #1 reason to consider staggered is that narrower front tires 'track' less on the heavily grooved roads I drive on daily. In the end, I will probably go 245 square, and try to live with the tracking. I'm giving the 225 square awhile though.

Compound will affect tramlining more than width, as will your alignment. Stickier tires tramline more.

[taiguy]

Originally Posted by rubbercow

Is the out-of-box tune any good? Mehhh. It is okay. It hesitates sometimes. It enjoys revving up to 2500 RPM at stoplights randomly. It bucks occasionally if you let off the throttle too fast and then WOT it. It stinks when you first start it. What I liked is that the kit was installed, the ECU was flashed, and I was able to daily drive it immediately. Maybe this line is really a duplicate of #1 above. I'll be having it tuned eventually though.

Did it murder the gas mileage?I tend to lead-foot and row the gears a lot. I'm filling up at the same frequency I was before. It must be in the 10% delta range at most.

What is Edelbrock's tech/customer service like? Oddly, I did not have the success story of some on the forum. It took them four days (two of them business days) to send my tune. Technical support was a run-around on it. Technical support was also a pain-in-the-ass to reach several times (ring, ring, mother-f**ing ring). The operator would not budge without an exact part number, even for sales prior to buying it.

The random revving to 2k at stoplights is indeed weird. Mine drops to 1k and then will climb back up to 2k before once again settling back down.

My gas mileage got murdered. As did some other people who've installed it. No clear explanation yet.

I've found Topher to be pretty reachable but he only deals with the mechanical bits of the kit. Calibration@edebrock.com (nameless...) was quick to send over tunes but less quick on remedying some of the issues I've been seeing, such as bucking. I guess there's only so much you can do remotely.

[rubbercow]

I received a private message on how many parts were left over. FYI: