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Exhaust test to end all tests?

Posted By Ted 8 Years Ago
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Macs1964F100
Posted 6 Years Ago
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Thank you again Ted. I will go with Ram Horns and 2 1/2 pipes necked in the way you did for the test. Work is slowing down and the weather is cooing off so I am ready to spend some time on the old truck.

By the way, the is Mac just North of San Antonio. I will stop by and thank you in person next time I am up your way.
Ted
Posted 6 Years Ago
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A comment came up in another thread suggesting that the single exhaust crossover pipe system actually made better low-end torque than duals. Data from dyno testing does suggest otherwise. Here’s the graph displaying the torque values for the factory dual exhaust manifolds versus the single exhaust crossover system.

http://forums.y-blocksforever.com/Uploads/Images/f900fa52-3a78-46fc-b1da-ffb2.jpg



Lorena, Texas (South of Waco)
ejstith
Posted 6 Years Ago
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I am sort of surprised that as good '57 stock manifolds are they haven't been reproduced into steel headers. Seems like someone with a tubing bender, electric hack saw & great welding ability would have done this. With the cost of swap meet & ebay manifolds being what they are I'd think they'd sell like hotcakes if they were in the $200-$250 range.


Doing Fords for 45 years. '56 Customline Victoria

E.J. in Havana FL
Ted
Posted 6 Years Ago
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ejstith (12/8/2013)
I am sort of surprised that as good '57 stock manifolds are they haven't been reproduced into steel headers. Seems like someone with a tubing bender, electric hack saw & great welding ability would have done this. With the cost of swap meet & ebay manifolds being what they are I'd think they'd sell like hotcakes if they were in the $200-$250 range.

Reds makes two different sets of headers for the ’54-’56 cars. The one tube variety is listed at $220 while the two tube variety is listed at $295.

Here’s the link to a chart comparing some of the various exhaust manifolds and tubing headers. The headers that are simply a bolt-in replacement for the cast iron dual exhaust manifolds do not typically give much if any power boost over the cast iron exhaust manifolds.
http://forums.y-blocksforever.com/FindPost58704.aspx

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ejstith
Posted 6 Years Ago
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Ted, you mentioned, in the test, Fenton cast iron manifolds. What is the deal on those? I assume they are rare as hen's teeth..

Doing Fords for 45 years. '56 Customline Victoria

E.J. in Havana FL
Ted
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ejstith (12/19/2013)
Ted, you mentioned, in the test, Fenton cast iron manifolds. What is the deal on those? I assume they are rare as hen's teeth..
The Fenton manifolds have not been available for a good number of years now. There was a move recently to have them cast overseas but still waiting to hear more about that. For now, the manifolds seem to be relegated to ‘collector’ status as those people that have them, seem to have more than one set.

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vntgtrk
Posted 6 Years Ago
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I'll admit I chose the aftermarket ram horns for my truck after seeing how they stacked up to the other configurations. While I don't have the induction or head mods, they will be a good choice for a street truck being built to haul a 2500 lb trailer on a regular basis. I looks I'll be making up an exhaust using mostly Hearthrob bits.

And yes I agree that this is valuable info. Heck this whole site has steered this novice in the right direction
CK and his 55Tbird
Posted 5 Years Ago
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Ted,

Have you or will you be testing Mummerts T-Bird headers?

Do you have any expectations of what results may occur?

Chris
Ted
Posted 5 Years Ago
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CK and his 55Tbird (1/26/2014)
Ted, Have you or will you be testing Mummerts T-Bird headers? Do you have any expectations of what results may occur? Chris
While I haven’t specifically tested a set of headers that came directly from John, there’s a chance they have been already tested depending upon who his supplier is. Here’s a couple of links showing pictures of some of the various headers and exhausts that have been tested thus far which can be used to compare some of the various designs against each other.
.

http://forums.y-blocksforever.com/Topic55379.aspx?PageIndex=3

.

http://forums.y-blocksforever.com/FindPost55795.aspx

.

And here is the chart again showing the ‘best’ score for each exhaust system tested thus far. Keep in mind that the best score does not necessarily produce the best peak horsepower or peak torque values.

Description.

Score

Peak

HP

Peak

TQ

Avg

HP

Avg

TQ

Mufflers

Testing configs

Single exhaust with crossover pipe

1484

239

303

202

276

NO

2

1955/56 Dual Exhaust manifolds

1629

274

327

223

301

NO

4

Reds/Hedman two tube headers

1635

278

327

224

302

NO

3

1957 Dual Exhaust manifolds

1650

279

330

226

305

NO

4

Fenton cast iron manifolds

1663

282

332

228

308

NO

2

Tri-Y stepped shorty Tbird headers non-firing order specific - GB

1675

294

332

230

309

NO

4

Ram Horns w/2”into 2¼” pipes

1683

283

337

230

312

NO

2

Shorty 1.625” w/box collectors - DC

1693

284

336

231

314

NO

1

JC 4 tube car chassis shorty headers

1739

296

347

238

322

NO

6

Tri-Y pickup headers firing order specific-CC

1739

297

347

238

322

NO

5

Sanderson 1½” T-Bird headers w/2½” pipes

1751

297

350

240

324

NO

11

Sanderson 1½” Pickup headers w/2½” pipes

1751

300

350

240

324

NO

5

Reds 1.625” 4 tube hdrs for 55/56 car

1753

295

347

240

325

NO

8

Fenderwell headers 1.75” tubes - MW

1768

306

344

242

327

NO

5

Fenderwell headers 1.625” tubes

1769

308

346

243

327

NO

5

KC 4 tube Maxton Mile 1 5/8” headers

1775

310

351

244

328

NO

4

Rdstr 4 tube 1.75” gattling collector hdr

1778

309

355

244

329

NO

2

EMC headers 1.75”/1.875” stepped

1780

310

349

244

329

YES

4

FPA T-Bird hdrs 1.625”/1.75” stepped

1780

311

342

244

329

NO

13



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CK and his 55Tbird
Posted 5 Years Ago
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Thanks Ted. The FPA type are the ones I was thinking of.

I think I'll go for the Saunders shorty that I saw on Ebay for $250.
Due to I will be using the car as a daily driver and from what you were saying about coated heaaders, stainless is a much better choice, and its only 10HP.
I'll spend the extra on the intake.


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