Ace 4-2-1 Header

[churchx]

Originally Posted by AceHeader-MT

150- highest peak HP and lower torque
150- robotic weld at 2-1 merger
250- 1-2%HP drop from 150 and 3-4% more torque
250- 100% hand welded
350- LHD cars only, 100% hand welded
350 dyno sheet available here:
http://www.ft86club.com/forums/showt...t=80609&page=5

Those higher or drop of hp/torque are relative to 350, or 150 vs 250?

[AceHeader-MT]

Originally Posted by Calum

Your link to the dyno plots doesn't work.

Can we get a complete explanation on ALL of the different options for this header.

There's type a and type b, as well as different overpipe designs. If I was going to order one I wouldn't even know where to start at this point. Also, you should include the explanation on your site.


Edit, after reading through some of the posts I'm come to the conclusion that the type A has 15* collectors, while the type B has 20* collectors. The 15* are more expensive because they take longer and require a human to weld, but they make more power. I'd be interested and in knowing how much more, but that has been asked already.

There's also the type C, but that's a temporary measure to get orders filled faster. Nevertheless, I'm curious to know the collector convergence angle on the type C, and if the internal steps help or hurt power.

There are also three options for the 2-1 merge. The 350 (mm?) is left hand drive only and gives the most low end power, but the least high end power gains.
The 150 is the opposite of the 350's gains in that it gives the best high end power and the least low end gains, of the three options.
There is also a 250 that can work with both left and right hand drive and would likely offer the best of both worlds when it comes to gains at both ends.

Is that accurate?

Edit 2, so I just looked at your site, you also offer custom collector convergence angles.

Appologizes for all the confusion with different types.

To simplify, we only have a Type A and B now.

Type A= 100% hand made. 15* converging angles
Type B= 80% hand welded. Slip joints and 20* converging angle

Any collector will fit with any header. A or B

It's since come to our attention that the type A is WAY overbuilt for an NA application. Also it takes over 3 weeks to build.

The type B is designed to get the same relative performance with a turnover time of just over 1 week.

All converging angles can be customized, but the 15* and 20* angles from the primary runners have shown very little variance in overall HP or Torque. The extent of the gains are found in the "2-1 OP's" which is why (depending on track/driving conditions) we have different variations to suit different applications.

Depending on the track we're racing at, we have a 2-1 collector to suit our needs.

Hope this helps clear up some things. And, yes the 250 is really for our colonial cousins in RHD cars to get maximum torque.

[AceHeader-MT]

Originally Posted by churchx

Those higher or drop of hp/torque are relative to 350, or 150 vs 250?

350= max torque (202.4NM), lowest peak HP (175.1HP)
250= torque (approx 200NM), HP (approx 178)
150= lowest torque (approx 195NM), HP (approx 182)

These numbers are approximated off percentages of the 350 when we did a stock dyno run with OEM frontpipe

[JoeBoxer]

Originally Posted by Calum

Your link to the dyno plots doesn't work.

Can we get a complete explanation on ALL of the different options for this header.

There's type a and type b, as well as different overpipe designs. If I was going to order one I wouldn't even know where to start at this point. Also, you should include the explanation on your site.


Edit, after reading through some of the posts I'm come to the conclusion that the type A has 15* collectors, while the type B has 20* collectors. The 15* are more expensive because they take longer and require a human to weld, but they make more power. I'd be interested and in knowing how much more, but that has been asked already.

There's also the type C, but that's a temporary measure to get orders filled faster. Nevertheless, I'm curious to know the collector convergence angle on the type C, and if the internal steps help or hurt power.

There are also three options for the 2-1 merge. The 350 (mm?) is left hand drive only and gives the most low end power, but the least high end power gains.
The 150 is the opposite of the 350's gains in that it gives the best high end power and the least low end gains, of the three options.
There is also a 250 that can work with both left and right hand drive and would likely offer the best of both worlds when it comes to gains at both ends.

Is that accurate?

Edit 2, so I just looked at your site, you also offer custom collector convergence angles.

I'm glad somebody agreed with me on this. I would rather see it simplified especially if it brought the price down some.

[churchx]

AceHeader-MT: thanks for nfo. I guess i'll prefer more torque even at expense of lower hp.
And btw, from my view nothing wrong with being way overbuilt. I'd still want to have the best, instead of regret of choosing compromise

[Calum]

Originally Posted by JoeBoxer

I'm glad somebody agreed with me on this. I would rather see it simplified especially if it brought the price down some.

I'm not saying they should change the choices, this nearly a la cart setup is pretty awesome if you ask me. I just wanted everything explained in one ease to find location.

[Kotu100]

Wow thats a lot of options.
Since you'll be in the Boston area this month i'd love to meet up and chat about a couple of options for my car.
Will you be bringing any systems with you stateside?

[chaoskaze]

Man 3 designs just for the overpipe? The lv of expertise is no joke.

[CSG Mike]

Originally Posted by chaoskaze

Man 3 designs just for the overpipe? The lv of expertise is no joke.

Not a surprise the Ace makes more power than every other header on the market

[mid_life_crisis]

Originally Posted by AceHeader-MT

Hi Folks,

...

The type A's are welded by- what you would call- a NASA welder...while the B's are welded by a NAVY welder and the Panasonic welding robot.

-Ace Header

Originally Posted by Calum

As someone who's been in the Navy for 16 years, that really doesn't give me any confidence at all. When I read that, my first thought was that you were selling something with welds that'll look like Borla's welds.

My thought was, "so one is made by someone who specializes at keeping air in, and the other at keeping water out?"

[CounterSpace Garage]

Originally Posted by olsonpg

Hey ACE! Just received my Type B in the mail and it looks amazing cant wait to put it on tomorrow.

I just had one question that i'm sure might cross a few peoples minds and that is on the type "B" if the "slip" joints cause any sort of restrictions for the gases to stumble over on over internally ?

Thanks ACE you guys rock.

Phil

Slip joints make the manufacturing process quicker and the losses you are thinking about are negligible.

[Carlysh]

Curious what numbers and power delivery this header does on pump 93 with 3 inch full exhaust

[Hyper4mance2k]

T-minus 6 months until PLM knock off...

[CounterSpace Garage]

Originally Posted by Carlysh

Curious what numbers and power delivery this header does on pump 93 with 3 inch full exhaust

Better than 91 octane but not as good as E85.