ACE CS400 Dyno's Please
 

Hi Guys,

Purchased a set of ACE CS400's, would like to know what kind of results you guys are getting. Please can you post you ACE CS400 dyno's with supporting mods as well.

Pretty please :thumbup:

R

Bob

I haven't dyno'd it, and my only supporting mods are a drop in air filter (Cosworth) and the DT tune. The rest of the exhaust is 100% stock.

I can tell you that this setup has much more torque than I was expecting. It has usable torque even down at 2000 rpm. It's not unusual for me to be putting along in traffic at about 65 km/h in 6th gear. From there, the power just builds like a freight train (well, ok, an NA freight train) all the way to red line. You will not be disappointing.

I have considered this as well, it doesn't hurt that it is ACE's lowest cost offering either. Haven't seen a ton about the 400 as it seems most get the 350.

Don't quote me on this, but when I talked to Zach about the 400 vs the 350, he said the top end was unaffected. Even if there is a difference, it seems likely that it would be pretty minor.

Hot off the presses in UK.

Please don't pick this apart, a guy got a CS400 and dyno'ed it. Here are his results

Thanks Matt! Header just arrived!

Yea trying to get a place for this info

Summerwolf: Most drive LHD, thus most get 350 as one giving most gains area under curve, unfortunately it also has clearance issues on RHD.
CS400 is somewhat similar ACE's header to 350, that fits fine on RHD. Also has good gains under curve & slightly even more low rpm optimised then 350 IIRC. It has Type B slip-on welds that makes production faster/cheaper, thus reduction to price, but for clearance enhancement it's overpipe is similar to 250, thus to move optimisation lower in rpm range it had to tuck extra runner length prior ovepipe, with sharper bends in piping.

In general get it if RHD or if "almost 350" for less, but if your car is LHD and want no-compromises best possible, get 350. To extract it's gains fully from any of them you'll need competent ecu tuners work though. Safe choice should be Delicious Tuning OTS ecutek tunes for ACE headers.

Ace header is undoubtedly the best header out there. I currently have a set of CS 400 with JRSC C30, DW injectors & pump, and flex fuel. Currently running Church Tuning conservative tune from Wilmington, CA, outputting 294hp 216tq with cali 91 pump and 330hp 234tq on E85 from a dynopack.

Aside from the performance gain, Ace customer service was phenomenal. I had issues with fitment, and Ace was able to fedex overnight from Taiwan, a brand new header to me to correct the issue.

http://home.bullet-systems.com/websc...GT86/dyno3.jpg

CS400 and high flow cat, otherwise stock exhaust. Tuned by Mark at Abbey Motorsport. Lower line is stock car.

Do you have any before dynos? Even just a baseline with the supercharger and then supercharger and header would be phenomenal. Also, I'd love to see what that torque curve looks like with that combination.

I don't have the power figures from before the Ace header was installed. I was running tomei uel before. After switching to Ace, mid to high end power gain was easily noticeable.

I think the ultimate sacrifice for me to switch to EL was the sound. I really miss the rumble. But with the power I'm making, I don't regret.


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Funny how the curve is different od Dynapack vs roller dyno. Or is it tuned ""not as good"?

I just wish there were more sound clips of the exhaust with a stock exhaust. Aside from my powertrain warranty ending in 15 months, that's the only thing holding me back. I'm a big stickler for sound, not looking for something obnoxious like most UEL's. Pretty sure the CS400 will sound good, but I just need to get a better feel for it.

The Dynapack shows more torque below 3500. Other than that they're quite similar, bar smoothing and differences between dyno types. Ramp rate might also have an impact on that.

Not gonna lie. No cats on a stock muffler will sound like crap, because the muffler will rattle.

Goes for any catless header.

It's at Church; the before dynos are the same as any other FRS/BRZ tuned there, there are hundreds of dynos scattered throughout the forums. A CARB JRSC should put down approximately 245-255whp on ACN91.

Here's the CSG BRZ on HBP (9% more boost), and a A/350 (non-ceramic) on E70.

Not shown: CSG BRZ on HBP and A/350 (non-ceramic) on ACN91 puts down approximately 335whp.

https://scontent-lax3-1.xx.fbcdn.net...09390340_o.jpg

For reference, here's a stock 2105 ACN91 vs A/350 ACN91 vs A/350 E70

https://scontent-lax1-1.xx.fbcdn.net...68564693_o.jpg

and my 2017, stock, on VP101

http://i.imgur.com/BXY3nfO.jpg

Thanks Mike.

I'm especially interested in seeing what the torque curve looks like with a CS 400, the JRSC with stock pulley or E-Force with stock pulley, and 91 octane gas.

Actually, I'd love to see a comparison with both superchargers, but that's probably asking a bit much.

I'm running the stock exhaust system with just the CS400. There's some very minor rattle, but it seems the OEM resonator and second cat are enough to tame things down.

With the OEM front pipe, the rattle is tamed down; you should try a catless front and you'll barf at the noise.:barf:

Seriously. But that's what prompted development of some catback options :)

Nobody locally has that combo; everyone here goes 350 after seeing the results =\

Yeah, I'm gathering that. I was under the impression that the top end difference was minimal between the 400 and the 350, and considering the price difference and that I spend very little time in the very upper ranges of the rpm band already, I thought the 400 was a good choice. I still think it is, for me, but it's hard to figure out what to set as my next goal.

I probably doesn't matter, really. With duty/taxes/shipping/exchange rate, an FI kit is pushing very close to $10K CAD. It'll be a while before I have that much cash just burning a hole in my pocket.

Yeah, I heard one video. It was more than enough to tell me I don't want that setup.

From what I've seen unless you're really wringing this motor out non stop the 400 seems to be a great compromise. Looks like the 400 gives a bit more down low torque but gives up just a little high rpm peak HP.


If it fits fine and is the "torque monster" it is marketed as, plus the lower price point.....


Is this not the case?

It really depends on what you're doing with the car. Some people are more comfortable redlining everywhere than others.

Mostly street driving, edelbrock SC, and some autoX mixed in.... although you have to redline the car to get performance out of it anyways.

That tells me you're better suited for the A/350. If you had said everything but that, then I'd say the CS/400 is a better match for you.

Thanks guys please post more.

I'm staying NA with CS400

Huh!!!

Mike, currently I have the Edelbrock SC setup on my MY2017. Have you or Delicious Tuning worked on any MY17s utilizing the EBSC and the CS400 yet?

I plan on getting that (due to me not being in 6k-7k range a lot) along with the ACE stainless steel FP then applying the DT.

If you have dyno results for 91/92/93 octane for aforementioned kit, let me know

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Sure have. A/350 results are almost universally better for SC cars though. Unfortunately most owners ask for their dynos to not be posted, and we have to honor that request.

I make over 200whp on the DT dyno with just the A/350 header alone, no boost ;)

Good info as always. Does the CS400 not retain any low end advantage? I'm looking at the JRSC with hbp and 7k redline after the newness wears off on my BRZ. I DD mine and would prefer the low end benefits if they still exist though.

You want the Edelbrock SC if you want low end power, not the Jackson Racing SC. The SC will amplify the header gains, and vice versa, with a good tune. If low end is what you want, get the Edelbrock + CS400.

Oh lawd you got me excited. Can't wait to get mine :burnrubber:

The car is ok imo in the sub-3500 rpm range as it is stock, I would just prefer to augment that range if it was a simple trade off in the header selection. Not looking for big low-rpm boost.

Can you define "that range"?

There's a few on the shelf at CSG looking for a home :thumbsup:

~1500 to 3500 rpm

Yup you want CS400.

I want to keep my car NA... Ace 350 type A vs anaconda 42.7mm?

No plans for boost in the future. Looking to get the 2017 manifold with a bigger throttle body too.

A350. Anaconda is for race applications only.