Nameless Performance Equal Length Stepped Header

[Sargy]

Installed, used grimspeed header gaskets and now a leak has been presented on the right passenger flange. gunna drive around and hopefully something happens...if anything.

its about 1 inch away from the TRD intake by the way. Coated is the way to go!

[FrsDuke]

Got a surface temp gauge? Be interested to know what the temp is on that pipe.

Also an exhaust leak won't fix itself. Get under there and tighten it up.

Originally Posted by Sargy

Installed, used grimspeed header gaskets and now a leak has been presented on the right passenger flange. gunna drive around and hopefully something happens...if anything.

its about 1 inch away from the TRD intake by the way. Coated is the way to go!

[Deathreaper]

Originally Posted by Sargy

Installed, used grimspeed header gaskets and now a leak has been presented on the right passenger flange. gunna drive around and hopefully something happens...if anything.

its about 1 inch away from the TRD intake by the way. Coated is the way to go!

Good thing I got it coated + heat reflective tape! Do you think it could melt it even if coated?

[FrsDuke]

An inch of air is a lot of thermal insulation particularly when it is moving air.

[Mars2]

how long would be the wait if order one today?

[xwd]

Yeah an inch is probably enough space to keep anything from melting. I didn't relocate my radiator fan plug when doing my P&L coated header and it has about 1/8" between the two and it hasn't done anything to the plug.

Great results after the tuning especially on pump gas. I'm interested in some of the fit issues though since the P&L went through the same pains and they ended up fixing/replacing a portion of the header to change the angle it connects to the overpipe.

Also not a fan of people having to crank down on the flanges to get them to seal, the P&L was perfectly flat and aligned on both sides.

[mad_sb]

Originally Posted by Calum

An increase of 12% on the top end doesn't seem too bad from a header and tune.

How much were you expecting?

Originally Posted by FrsDuke

@mad_sb As per his edit this is with the 3" op/fp. So not being held back I wouldn't think. And it's still 9ftlb to the good at 7k. On this heartbreaker dyno.

Originally Posted by sato

But that torque boost @3000rpm is so sexy! Reminds me of the Mazda CX-5 header vs regular SkyActive configuración in the Mazda3.

Interested in seen configurations without stock pieces, but those results are nice looking.

Sent from my C6906 using Tapatalk

Originally Posted by slava

If you set your expectations extremely high, then you will be dissapointed. But I don't think a 35hp increase and 39lbft tq increase is "disappointing"

And trust me, the gained power is definitely useful.

Keep in mind I already have a 4-1 long tube header and full exhaust. The last thing i want to do right now is swap header and LOOSE top end power, which is what looks like may happen with this header, compaired to my current setup.

Also I believe the OP stated he has a stock midpipe along with an axle back. My comment was the stock midpipe could be holding back the power at higher rpm.

Guys, my issue is not the gains, it is where the gains are. I don't want a header that is as biased as this one seems to be below 5k. Where do you spend most of the time on a road course.. 5k plus. Autocross and daily driving is where this header will shine and I do not autocross.

What i want from a header is to fill in the torque dip (not turn it upside down) and give the biggest gains from 4k and up.

If anyone wants to buy my coated never installed header shoot me a pm with a reasonable offer. I may wait a few days before i make a final decision.

[FrsDuke]

Originally Posted by mad_sb

Keep in mind I already have a 4-1 long tube header and full exhaust. The last thing i want to do right now is swap header and LOOSE top end power, which is what looks like may happen with this header, compaired to my current setup.

Also I believe the OP stated he has a stock midpipe along with an axle back. My comment was the stock midpipe could be holding back the power at higher rpm.

Guys, my issue is not the gains, it is where the gains are. I don't want a header that is as biased as this one seems to be below 5k. Where do you spend most of the time on a road course.. 5k plus. Autocross and daily driving is where this header will shine and I do not autocross.

What i want from a header is to fill in the torque dip (not turn it upside down) and give the biggest gains from 4k and up.

If anyone wants to buy my coated never installed header shoot me a pm with a reasonable offer. I may wait a few days before i make a final decision.

Ah mid not front. Perhaps then. I'm sad you won't be sharing actual cam phasing with everyone, but I understand your concerns for sure. I agree this header is biased a bit low for 1/4mile and track day ultimate numbers, but it is probably the best dd and autoX solution. Perhaps other dyno posts will show results you are happier with. I'd give it a couple weeks not days. More info will probably increase demand not diminish it, and I believe they've got quite a wait for the next round of deliveries.

[Juanito08]

Originally Posted by Sargy

Installed, used grimspeed header gaskets and now a leak has been presented on the right passenger flange. gunna drive around and hopefully something happens...if anything.

its about 1 inch away from the TRD intake by the way. Coated is the way to go!

+1 wish I would have gotten the coated as well

Here's a pic of how close it is

[DarkSunrise]

The way this header turns the dip into a mountain is quite impressive. I am concerned about how much it intrudes into the engine bay and the effect of all that heat on the surrounding components (belts, etc.).

[Thatruth2001]

Originally Posted by Juanito08

+1 wish I would have gotten the coated as well

Here's a pic of how close it is

Please speak up regarding the coating option. It was one of my recommendations when I installed my header last month. Anyone without the coating take any temp readings?

[Dimman]

Originally Posted by mad_sb

Keep in mind I already have a 4-1 long tube header and full exhaust. The last thing i want to do right now is swap header and LOOSE top end power, which is what looks like may happen with this header, compaired to my current setup.

Also I believe the OP stated he has a stock midpipe along with an axle back. My comment was the stock midpipe could be holding back the power at higher rpm.

Guys, my issue is not the gains, it is where the gains are. I don't want a header that is as biased as this one seems to be below 5k. Where do you spend most of the time on a road course.. 5k plus. Autocross and daily driving is where this header will shine and I do not autocross.

What i want from a header is to fill in the torque dip (not turn it upside down) and give the biggest gains from 4k and up.

If anyone wants to buy my coated never installed header shoot me a pm with a reasonable offer. I may wait a few days before i make a final decision.

I don't think you can do what you ask with headers. Or at least not with current approaches.

We get an expansion pulse at every cross section change. Primary to collector 1, secondary to collector, pipe to atmosphere. These expansion pulses are what drive the rpm specific gains or dips. And tubing length changes the return timing, since the waves travel at the local speed of sound. So we can change when the good wave gets there (also what you are chasing with your valve timing tuning) but we can't tell that gain to split itself and divide into two different rpm ranges. If it comes back at 4000rpm, you get all of the VE gains thereabouts.

The 4-2-1 concept is to add another expansion to the 4-1's single expansion. This is as close as you can get to 'dividing' the waves into two positions. We could get another useful expansion with a pretty short exhaust (think side pipe) but practical applications say nope.

This header we always knew would be AutoX friendly, but it is also track day and road course friendly, by how much corner exit should be improved. Top end is for drag racing.

To get what you want, it will probably take a complimentary intake manifold for your current 4-1 that fills in the midrange a bit.

[xwd]

Originally Posted by Thatruth2001

Please speak up regarding the coating option. It was one of my recommendations when I installed my header last month. Anyone without the coating take any temp readings?

You could simply put some reflective tape like the gold stuff on the airbox if you want but that's a pretty decent margin between the two, I certainly wouldn't be worried about melting anything.

[mad_sb]

Originally Posted by Dimman

I don't think you can do what you ask with headers. Or at least not with current approaches.

We get an expansion pulse at every cross section change. Primary to collector 1, secondary to collector, pipe to atmosphere. These expansion pulses are what drive the rpm specific gains or dips. And tubing length changes the return timing, since the waves travel at the local speed of sound. So we can change when the good wave gets there (also what you are chasing with your valve timing tuning) but we can't tell that gain to split itself and divide into two different rpm ranges. If it comes back at 4000rpm, you get all of the VE gains thereabouts.

The 4-2-1 concept is to add another expansion to the 4-1's single expansion. This is as close as you can get to 'dividing' the waves into two positions. We could get another useful expansion with a pretty short exhaust (think side pipe) but practical applications say nope.

This header we always knew would be AutoX friendly, but it is also track day and road course friendly, by how much corner exit should be improved. Top end is for drag racing.

To get what you want, it will probably take a complimentary intake manifold for your current 4-1 that fills in the midrange a bit.

my current 4-1 eliminated the dip and provided gains from 6k and up but the fitment is shit. I was hoping for similar results except with the top end gains coming a little sooner in the rpm range.

Your point is taken. Most of what I had read indicated that with a 4-2-1 design you could optimize the length and diameter of the 3 stages to get 3 harmonics to build the power across a broader rpm range than you could with a 4-1 design.

I would like to see a shoot out between the new revision JDL 4-1 and the Nameless, with an unbiased tuner.

I'm not giving up on this header yet, like i said, i think the stock midpipe was likely squeezing the gains from 5k and up. But i am also going to hold off a bit on the install since the value will drop the second the flanges touch the block

EDIT: I went back and looked at the plots nameless posted from the final revision... Those results look smoother through the 4-6 range and less peaky... way more of what i was expecting.. I know it's silly to be complaining about "extra" torques in some areas.. i am ocd about dyno plot shapes though because I know how the shape translates to the seat of the pants.