Reports on Burtz new engines

[Johnnya101]

I'm in the facebook group, all good things. Very smooth running, powerful, engines. No complaints yet.

One day...

[jack backer]

Put a header and resonator on, it sounds like an Offy when you roll it on. I went with the five bearing cam on mine, with an eventual upgrade to a Serr OHV head.. Burtz built to a 150 horse standard, but he nodded at 200hp..insanity with a stock chassis in my opinion.

[nkaminar]

JayJay,

Weber is a good option but buy some larger jets, mains and idle. The jets are easy to change. With the Weber on the Burtz block you can spin up past 3,000 rpm. I don't know how much rpm is possible. I have arbitrarily set my redline at 3,000 but do most of my cruising at 2,000.

I tried the tube header and straight (open) exhaust but the stock exhaust manifold and Ares performance muffler is just as good and not nearly as noisy.

[updraught]

Originally Posted by nkaminar

JayJay,
I tried the tube header and straight (open) exhaust but the stock exhaust manifold and Ares performance muffler is just as good and not nearly as noisy.

I can't see how most tube headers are going to work as most are not turned length pipes to create the suction of having even flow pulses. Also, the low compression means there is not much energy available to do much. Low compression needs low restriction in the muffler. Too wide an exhaust pipe could lead to drain where exhaust doesn't flow fast enough. This seems to be forgotten in modern post turbo times.

[Dave in MN]

I have a Serr Miller head on mine and 18,500 miles of trouble free service. Great engine!

[Raaf]

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@Dave in MN - what carb setup are you using?

Thanks!

Raaf

[Dave in MN]

Originally Posted by Raaf

@Dave in MN - what carb setup are you using?

Thanks!

Raaf

I am currently running one Stromberg 97. (Okay power)
I have also tried two Stromberg 81's (Very good power and throttle response...poor fuel economy, there is one throttle position where I cannot tune out a lean condition.)
I have tried a Holley Sniper TBI Electronic fuel injection (Pretty good power and throttle response and great fuel efficiency) (SEE PHOTOS BELOW)

I am planning a road trip to Alaska this summer and I will be using the Holley Sniper but carrying the single 97 as a backup. The manifold adapter directly below the Holley EFI is removed to install the single Stromberg 97.
Good Day!

[Raaf]

Originally Posted by Dave in MN

I am currently running one Stromberg 97. (Okay power)
I have also tried two Stromberg 81's (Very good power and throttle response...poor fuel economy, there is one throttle position where I cannot tune out a lean condition.)
I have tried a Holley Sniper TBI Electronic fuel injection (Pretty good power and throttle response and great fuel efficiency) (SEE PHOTOS BELOW)

I am planning a road trip to Alaska this summer and I will be using the Holley Sniper but carrying the single 97 as a backup. The manifold adapter directly below the Holley EFI is removed to install the single Stromberg 97.
Good Day!

Dave - thank you for this info! I am considering a single 97 for mine.

Do you mind also telling me which manifold you are using for the single? ...and did you have to modify it to get it to fit since the plates where the bolts go are typically cut in half? (Yours appear to be modified in some way to account for this)

I have an unbuilt Burtz and Serr head waiting for me to get my butt into gear but still sorting out some of the final details too.

Thank you!

Raaf

[Dave in MN]

Originally Posted by Raaf

Dave - thank you for this info! I am considering a single 97 for mine.

Do you mind also telling me which manifold you are using for the single? ...and did you have to modify it to get it to fit since the plates where the bolts go are typically cut in half? (Yours appear to be modified in some way to account for this)

I have an unbuilt Burtz and Serr head waiting for me to get my butt into gear but still sorting out some of the final details too.

Thank you!

Raaf

I made four aluminum spacers that mimic the flange end on the manifold. They act as spacers to support the concave manifold washers. The manifold studs that hold the intake on need to be longer due to the extra manifold thickness. The intake manifold is from Snyders PN: A-9425-SGL This manifold has larger diameter runners than most manifolds so it matches up to the larger Burtz intake ports nicely.

[Dave in MN]

Sorry - repeat of previous post

[Chris Haynes]

I put the Aries High Performance muffler on my mostly stock A. I did have the cast iron header and the downdraft Holley/Webber carburetor. I noticed a loss of power. Hopefully it will do better on my RiLEY head engine.

[Chris Haynes]

The idea behind stainless isn't for looks. It is so they won't rust out.

[JayJay]

Originally Posted by Chris Haynes

The idea behind stainless isn't for looks. It is so they won't rust out.

Agreed. However, the display I saw sure looked to me like it had been polished after assembly (the tops of the welds were polished), and that doesn't contribute much to rust resistance.

JayJay

[Y-Blockhead]

Originally Posted by Chris Haynes

The idea behind stainless isn't for looks. It is so they won't rust out.

Then why do they bother to polish it??

Actually, I bought the stainless muffler because I didn't want it to rust out. I didn't like the polished look so it "buffed" it with a scotch-brite. But I didn't expect it to stain. now it looks terrible.

[rotorwrench]

Aircraft have been using CRES type tubing since the WWII era. It turns brown over a fairly short period of time. It's certainly too much work to keep polished. The systems also need very good support due to the weight. They erode more than corrode but tend to crack when they get thin.

Model A cars already had issues with the exhaust manifold tending to slump down on the heavy end and a lot of that is due to the weight and arm of the exhaust pipe and muffler. Ford should have supported the pipe in front of the muffler as well as behind but they never considered it and issue. They likely didn't figure that so many of these cars would survive as long as they have,

[ModelA29]

Originally Posted by rotorwrench

Model A cars already had issues with the exhaust manifold tending to slump down on the heavy end and a lot of that is due to the weight and arm of the exhaust pipe and muffler. Ford should have supported the pipe in front of the muffler as well as behind but they never considered it and issue. They likely didn't figure that so many of these cars would survive as long as they have,

Henry did think about it. They added the gland rings to keep the manifold located. I think early cars used one in every hole later ones are just in the end holes of the exhaust manifolds. https://www.snydersantiqueauto.com/p...1312&cat=41892

[Y-Blockhead]

Originally Posted by rotorwrench

Model A cars already had issues with the exhaust manifold tending to slump down on the heavy end and a lot of that is due to the weight and arm of the exhaust pipe and muffler. Ford should have supported the pipe in front of the muffler as well as behind but they never considered it and issue.

What they really should have done is installed another stud on both ends of the manifold instead of relying on the two center studs to support it.

Hmmm, wonder if I can get a Y-Block manifold to fit...

[ModelA29]

Originally Posted by Y-Blockhead

Hmmm, wonder if I can get a Y-Block manifold to fit...

If you had a Dodge block you could stick a Y head on it.

[Y-Blockhead]

Originally Posted by modela29

if you had a dodge block you could stick a y head on it.

Awesome...

[alexiskai]

I've seen it recommended to use the aftermarket sleeve that mates the tailpipe and the manifold, because supposedly it ensures that the tailpipe is oriented correctly and puts less stress on the joint.