Nameless Performance Equal Length Stepped Header

[Carlitoz3]

Originally Posted by Shneegle

Finally got all the files from my tuner and have the dyno below. All runs were done on the same day and same car. I included 3 pull in the dyno graph and they are as follows:

Blue - Stock FRS
Red - Nameless 4-2-1 Header + 3" Nameless Header-back Exhaust
Green- Header + Exhaust + Tune



Tuned By Aaron at ATSRacing in Denton, TX

Stock was putting up a battle at 3000 rpm

[regal]

Originally Posted by Carlitoz3

Stock was putting up a battle at 3000 rpm

Yes there is significant loss in low end torque. The 4-2-1 HKS doesn't have this issue, is it tuning or the header?

[wparsons]

Anyone posting dynos have a tuned baseline vs re-tuned with header?

[Sportsguy83]

Originally Posted by Tainen

Was the flange flat? Gasket failure, or did it need some sort of extra thick gasket due to flange to header surface issues?


Part of the reason why I ask is some people were eviscerating nameless for a few leaks that appeared to be installer error or gasket failures. I'd prefer if the truth spoke for itself.


Thanks for the pic/info Raul!

He's at the track this weekend, but he's a friend and we spoke about this so before your post get buried down, it was gasket failure. @raul correct me if wrong or need to add any info.

PSA: Stock gaskets are a POS and if you are replacing any exhaust component, either get a good gasket or get Subaru Legacy turbo thick metal gaskets.

Originally Posted by Shneegle

Finally got all the files from my tuner and have the dyno below. All runs were done on the same day and same car. I included 3 pull in the dyno graph and they are as follows:

With all due respect and this is my worthless 2 cents, that is a really jumpy dyno curve considering it's already smoothing 5. You should take a 3rd gear WOT log just to confirm and make sure you are not knocking.

[kiichiro]

I love my hks on street but it's built to tuck in under oe plate and just too hit for track time

I gonna give Jason my post tax dolla ... Stepped cat less?

But I want it so it doesn't tuck in oe plate
I want it to run cool for me in phx

Ready to order, can a one off be made for me?

[kiichiro]

Can't agree more, love my grim speed header gaskets, oe suck!

[tennisfreak]

Wow thanks for the dynos! So from Shneegles dyno it looks like just a header without a tune is pretty much worthless. HP is about exact same and the torque curve is modified to move the dip around some.

[mad_sb]

Originally Posted by raul

Well, I just finished fixing my leak with Grimmspeed gaskets. Here was the culprit:

Give me about 10 days and I'll have all my dynos gathered.

Was that gasket (the oem style that was pictured) new when you installed the header? I had just he opposite results twice now. the Grimspeed's leaked and the oem did not.

[350matt]

so the two results so far show about a 15-19Bhp gain at the wheels, at the top of the curve over a stock car - when its coupled with a decent exhaust and tuned

So how much $/HP is that then?

Nice results I feel for a simple bolt on part

[tennisfreak]

Well for the header and tune its going to be ~$1800 so if you get a 18hp gain then its ~$100 per HP.


EDIT: If you factor in the rest of the exhaust parts then the cost goes way up and your HP return on investment goes down.

[raul]

Originally Posted by Tainen

Was the flange flat? Gasket failure, or did it need some sort of extra thick gasket due to flange to header surface issues?


Part of the reason why I ask is some people were eviscerating nameless for a few leaks that appeared to be installer error or gasket failures. I'd prefer if the truth spoke for itself.


Thanks for the pic/info Raul!

I replaced the OEM gaskets with Grimmspeed gaskets at the heads, and had to use the special Graphite gasket that Nameless provided to seal at the header/overpipe connection. I don't know if the flanges at the heads were flat, (it almost seems like the order in which you tighten things up can make a big difference with OEM gaskets) but I'm very positive the flange connecting to the overpipe has some slight warping, since I saw some slight waviness on the graphite gasket when removing the header to replace the gaskets for the heads.

[fenton]

Originally Posted by Shneegle

Finally got all the files from my tuner and have the dyno below. All runs were done on the same day and same car. I included 3 pull in the dyno graph and they are as follows:

Blue - Stock FRS
Red - Nameless 4-2-1 Header + 3" Nameless Header-back Exhaust
Green- Header + Exhaust + Tune



Tuned By Aaron at ATSRacing in Denton, TX

Is it safe to say you have 3000 invested between the stock run and the fully tuned run or does the stock run include all exhaust components already minus the header and tune?

Sent from my HTC One using Tapatalk

[Shneegle]

Originally Posted by fenton

Is it safe to say you have 3000 invested between the stock run and the fully tuned run or does the stock run include all exhaust components already minus the header and tune?

Sent from my HTC One using Tapatalk

First run was stock. Then we added all the exhaust components. So yes it is safe to say 3000+ invested between stock and fully tuned.

Sent from my HTC One using Tapatalk

[Sportsguy83]

Originally Posted by fenton

Is it safe to say you have 3000 invested between the stock run and the fully tuned run or does the stock run include all exhaust components already minus the header and tune?

Sent from my HTC One using Tapatalk

Originally Posted by Shneegle

First run was stock. Then we added all the exhaust components. So yes it is safe to say 3000+ invested between stock and fully tuned.

Sent from my HTC One using Tapatalk

With all due respect to everyone in the thread, this exact thing is what pushed me over to go FI. A bolt on kit on low boost can be had for 4K, and will make much more power than bolt ons + tune.

I completely understand whomever does not want to deal with going FI though, I'm just sharing my train of thought.