CSG Mike's 2017 BRZ + Ace A350 dynos.

[CSG Mike]

Originally Posted by TylerLieberman

Perfect for a car seeing drift duty. I might have to link up with you to catch a ride along and see how it feels for myself.

$2200 is a lot, but if it's a big difference over what my last car with Tomei EL + OFT was, I'm willing to spend it.

It's actually more Hp/Dollar than a Tomei + OFT!

[CSG Mike]

Originally Posted by tshrey

Is that dip in the 91 plot at 2500 real? With how sharp it is (both down and back) it seems like it would be annoying from every pull away from a stop in first gear.

Probably not, as I don't feel it. I suspect its where the pull was started.

[redlined600]

Originally Posted by justinco

I totally get what you are saying, which is why I have been thinking of switching to an EL header over the off-season. However, the way I look at it is this; where do these cars suffer the most? It is in the digs and between 3500rpm - 5000rpm. Once we get above 5k rpm or so, the limitation is no longer power, it is grip. Having more power there really doesn't help too much, where as having some more grunt in the mid-range does. And this is speaking strictly STX autocross and my opinion, of course

It's easy to make a histogram in excel with a data log of your rpm. Better yet only include data while you're 100% throttle opening. This would give a clearer picture.

[FRS Justin]

Originally Posted by weederr33

But my bank account

Also I was heavily leaning towards the HKS header... but ugh. :/

If your looking for a N/A header that is one of the best bang for the buck I suggest PPE EL header. I had great results with that one. BUT the ACE header will make more hp than the PPE but not much.. Its truly you get what you pay for scenario. Honestly tho, If I need a N/A header I'm going to pony up for the ACE next...

[Ultramaroon]

Originally Posted by CSG Mike

The A/350 is what you want for sustained 4500-redline use.

Not the Anaconda? Hmmm...

[CSG Mike]

Originally Posted by Ultramaroon

Not the Anaconda? Hmmm...

Unless you have cams and/or a build engine...

[cjd]

Originally Posted by justinco

I totally get what you are saying, which is why I have been thinking of switching to an EL header over the off-season. However, the way I look at it is this; where do these cars suffer the most? It is in the digs and between 3500rpm - 5000rpm. Once we get above 5k rpm or so, the limitation is no longer power, it is grip. Having more power there really doesn't help too much, where as having some more grunt in the mid-range does. And this is speaking strictly STX autocross and my opinion, of course

When I was researching (before Ace was around) the same discussions were had around the Nameless. I did a bunch of work in excel and never found the best UEL to be making more power except over the shortest EL headers, and then over such a brief area as to be negligible. The Nameless was quite a bit better pretty much everywhere... Though repeatability seems to be a challenge for tuners. The problem with the data comparisons was finding examples with baseline pulls, and normalizing on that. Most other comparisons I've seen seem to skip the baseline and try to line up the header pulls...

I'd be happy with an Ace but can't justify the cost to change...relative to the long tube 4-2-1 EL I already have. I may be stuck on the tune side and no choice, eventually...

C

[JDM4E]

I would love to see a sound clip of that setup (ACE 350 with good tune + stock the rest). any chance? Does it drone or rasp in any way? Does it smell?

[strat61caster]

Originally Posted by CSG Mike

It's actually more Hp/Dollar than a Tomei + OFT!

Well according to your website just about ANYTHING except a catback exhaust is better hp/dollar than the Tomei headers.

[Williampreza]

Originally Posted by JDM4E

I would love to see a sound clip of that setup (ACE 350 with good tune + stock the rest). any chance? Does it drone or rasp in any way? Does it smell?

I took a wild shot and typed "ace 350 header" into YouTube.

[DeliciousTuning]

Originally Posted by tshrey

Is that dip in the 91 plot at 2500 real? With how sharp it is (both down and back) it seems like it would be annoying from every pull away from a stop in first gear.

No, the first hundred RPM can vary in how they look based on how you're ramping into the pull. That dip does is not something you would feel because it's not really there. :-)

-Zach

[jmark]

I believe this is Mike's setup. Sounds great to me.

https://www.facebook.com/CounterSpac...type=2&theater

[gtengr]

In comparisons it's rarely mentioned that the ACE header also replaces the stock overpipe. How does the ACE compare to the top uel and el headers plus aftermarket overpipe?

[JermMX5]

Originally Posted by gtengr

In comparisons it's rarely mentioned that the ACE header also replaces the stock overpipe. How does the ACE compare to the top uel and el headers plus aftermarket overpipe?

Take a look at the second picture here: https://www.delicioustuning.com/Stage_2_BRZ_FRS_86

Looks like the JDL with nameless OP made some really decent numbers.