The Ford Barn

Towd56 · 01-18-2017, 08:31 PM

Anyone have any testing data (dyno) on the differences between the touring 330 cam and the touring 340? I have the specs on both but am curious if any testing has been done to see the benefits of either?

Thanks

CT Jack · 01-18-2017, 08:43 PM

Question: Your spec differences are I am assuming dimensional, is that correct?

Towd56 · 01-18-2017, 08:44 PM

Yes-

CarlG · 01-18-2017, 09:04 PM

Bill Stipe has the dyno tests, I saw them somewhere, probably on his web site. That's been a couple years ago, before I bought my 330

Towd56 · 01-18-2017, 09:07 PM

I've talked to them and checked the site. Although, they were extremely helpful and informative-I was unable to find out anything with regard to real hp results

2manycars · 01-19-2017, 07:19 AM

Sponsored Links (Register now to hide all advertisements)

There is a utube video by antique engine rebuilding, that discusses both cams. The video is a hour long, but the info on cams is near the end.

https://www.youtube.com/watch?v=N5kDrtTJGsU&t=3s

BRENT in 10-uh-C · 01-19-2017, 07:47 AM

Ironically, I was chatting with Bill yesterday and he was telling me that he just had Josh change the centerline up roughly 2° on the IB340 cams. This effectively means it creates more low-end power, and it now matches the centerline specs of the 330 cam. So in a nutshell, if you have any 'breathing mods' done to your engine (larger valves, higher compression, etc.), then the 340 is probably the better choice. If you are 100% stock, the 330 is likely the better choice.

C26Pinelake · 01-19-2017, 09:43 AM

Quote:

Originally Posted by Towd56

I've talked to them and checked the site. Although, they were extremely helpful and informative-I was unable to find out anything with regard to real hp results

Possibly you can pay to have a test done on their cam. Wayne

Dave in MN · 01-19-2017, 01:05 PM

I do not recall seeing published dyno comparisons for the IB330 and IB340 with equal stock equipment.

Speaking to Bill a couple years ago as to which cam to put into a Touring engine I was building, he said: "Unless you have made modifications to improve air flow through the carburetor, intake manifold and intake ports, the extra lift of the 340 cam will not result in more power."

I used the 330 cam as I wanted to stay with stock carb and manifold.

I later did some comparison dyno runs on a B engine with a Lion Speed lll head.
It had a dual Zenith carb updraft manifold, two rebuilt Zeniths and some mild porting in the intakes.
I did run the engine with a 330 cam and then changed the cam to a 340. (Lots of work...) I did see a 4-5 HP gain between 1800 and 2300 rpm. (This is HP I can use!)
The largest gain with the 340 cam, 12 hp, was between 3100 and 3400 rpm. (This gain was not valid for me...I want/need the power at a lower rpm.)

I did not dyno the engine before the mild porting was completed or with a single carb. My testing may not help you.

Good luck with your project.
Dave

MikeK · 01-19-2017, 02:48 PM

I often hear reference to "the" 340 Stipe cam. Just to add a bit of clarity here, there are TWO completely different Stipe 340 cams: the IB340 (Improved B) and RR340 (Road Runner).

The RR340 has more duration and overlap and is much more a mid-power cam. I run one in my 160B. I believe the centerline change in question is to the IB340, a much milder cam.

Just be aware of the differences and exactly what you order when you buy or ask for a cam. Vince's website has a page that shows the specs of the Stipe cams in question. LINK

Benson · 01-19-2017, 02:48 PM

Here is Snyder's dyno tests with IB330 and their 5.5 and 6.0 heads.

I remember seeing a test once that included the IB340 cam (not sure if with dual carbs or not) but can not find it.

Bill Stipe did these tests for Snyder's on his Dyno as I remember.

http://www.snydersantiqueauto.com/Co...lease-8780.pdf

Benson · 01-19-2017, 02:59 PM

Here is Charlie Yapps dyno tests of dual A carbs

and another of Dual B carbs using his Vortex dual intake.

I don't see which cam he used....

http://www.modelaparts.net/dynosheets.htm/vortex.html

I think it is Dennis Paranio's dyno ...

Towd56 · 01-19-2017, 04:18 PM

Awesome info. Just what I was looking for. Thank you

updraught · 01-19-2017, 07:11 PM

http://www.modelaparts.net/dynosheets.htm/dmafc.htm
Supposedly a stock engine with a "B" cam. Note how the power is good even at 1100 revs.

From the web site
http://specialtymotorcams.com/pages/camshafts.html
"These are excellent performers for A and B Ford 4 cylinder engines. 340Touring cam has excellent torque 1600 to 3000 RPM range. Best run with larger intake valves and Weber carb & 6 or 7 to1 C.R. Head"

01-18-2017, 08:31 PM	#1
Towd56 Member Join Date: Apr 2014 Location: Worcester, MA Posts: 48	Stipe Cams Anyone have any testing data (dyno) on the differences between the touring 330 cam and the touring 340? I have the specs on both but am curious if any testing has been done to see the benefits of either? Thanks

01-18-2017, 08:43 PM	#2
CT Jack Senior Member Join Date: May 2010 Location: Hebron, CT Posts: 432	Re: Stipe Cams Question: Your spec differences are I am assuming dimensional, is that correct?

01-18-2017, 08:44 PM	#3
Towd56 Member Join Date: Apr 2014 Location: Worcester, MA Posts: 48	Re: Stipe Cams Yes-

01-18-2017, 09:04 PM	#4
CarlG Senior Member Join Date: Nov 2010 Location: Anchorage, Alaska Posts: 9,115	Re: Stipe Cams Bill Stipe has the dyno tests, I saw them somewhere, probably on his web site. That's been a couple years ago, before I bought my 330 __________________ Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club

01-18-2017, 09:07 PM	#5
Towd56 Member Join Date: Apr 2014 Location: Worcester, MA Posts: 48	Re: Stipe Cams I've talked to them and checked the site. Although, they were extremely helpful and informative-I was unable to find out anything with regard to real hp results

01-19-2017, 07:19 AM	#6
2manycars Senior Member Join Date: May 2010 Location: Eastern CT Posts: 2,732	Re: Stipe Cams Sponsored Links (Register now to hide all advertisements) There is a utube video by antique engine rebuilding, that discusses both cams. The video is a hour long, but the info on cams is near the end. https://www.youtube.com/watch?v=N5kDrtTJGsU&t=3s __________________ Bill www.brauchauto.com

01-19-2017, 07:47 AM	#7
BRENT in 10-uh-C Senior Member Join Date: May 2010 Location: Eastern Tennessee Posts: 11,508	Re: Stipe Cams Ironically, I was chatting with Bill yesterday and he was telling me that he just had Josh change the centerline up roughly 2° on the IB340 cams. This effectively means it creates more low-end power, and it now matches the centerline specs of the 330 cam. So in a nutshell, if you have any 'breathing mods' done to your engine (larger valves, higher compression, etc.), then the 340 is probably the better choice. If you are 100% stock, the 330 is likely the better choice. __________________ . BRENT in 10-uh-C . www.model-a-ford.com ...(...Finally Updated!! ) .

01-19-2017, 01:05 PM	#9
Dave in MN Senior Member Join Date: May 2010 Location: Jordan, MN Posts: 1,411	Re: Stipe Cams I do not recall seeing published dyno comparisons for the IB330 and IB340 with equal stock equipment. Speaking to Bill a couple years ago as to which cam to put into a Touring engine I was building, he said: "Unless you have made modifications to improve air flow through the carburetor, intake manifold and intake ports, the extra lift of the 340 cam will not result in more power." I used the 330 cam as I wanted to stay with stock carb and manifold. I later did some comparison dyno runs on a B engine with a Lion Speed lll head. It had a dual Zenith carb updraft manifold, two rebuilt Zeniths and some mild porting in the intakes. I did run the engine with a 330 cam and then changed the cam to a 340. (Lots of work...) I did see a 4-5 HP gain between 1800 and 2300 rpm. (This is HP I can use!) The largest gain with the 340 cam, 12 hp, was between 3100 and 3400 rpm. (This gain was not valid for me...I want/need the power at a lower rpm.) I did not dyno the engine before the mild porting was completed or with a single carb. My testing may not help you. Good luck with your project. Dave Last edited by Dave in MN; 01-19-2017 at 02:52 PM.

01-19-2017, 02:48 PM	#10
MikeK Senior Member Join Date: May 2010 Location: Windy City Posts: 2,919	Re: Stipe Cams I often hear reference to "*the" 340 Stipe cam. Just to add a bit of clarity here, there are TWO completely different Stipe 340 cams: the IB340 (Improved B) and RR340 (Road Runner). The RR340 has more duration and overlap and is much more a mid-power cam. I run one in my 160B. I believe the centerline change in question is to the IB340, a much milder cam. Just be aware of the differences and exactly what you order when you buy or ask for a cam. Vince's website has a page that shows the specs of the Stipe cams in question. LINK*

01-19-2017, 02:48 PM	#11
Benson Senior Member Join Date: May 2010 Posts: 2,594	Re: Stipe Cams Here is Snyder's dyno tests with IB330 and their 5.5 and 6.0 heads. I remember seeing a test once that included the IB340 cam (not sure if with dual carbs or not) but can not find it. Bill Stipe did these tests for Snyder's on his Dyno as I remember. http://www.snydersantiqueauto.com/Co...lease-8780.pdf Last edited by Benson; 01-19-2017 at 03:22 PM.

01-19-2017, 02:59 PM	#12
Benson Senior Member Join Date: May 2010 Posts: 2,594	Re: Stipe Cams Here is Charlie Yapps dyno tests of dual A carbs and another of Dual B carbs using his Vortex dual intake. I don't see which cam he used.... http://www.modelaparts.net/dynosheets.htm/vortex.html I think it is Dennis Paranio's dyno ... Last edited by Benson; 01-19-2017 at 03:23 PM.

01-19-2017, 04:18 PM	#13
Towd56 Member Join Date: Apr 2014 Location: Worcester, MA Posts: 48	Re: Stipe Cams Awesome info. Just what I was looking for. Thank you

01-19-2017, 07:11 PM	#14
updraught Senior Member Join Date: Feb 2015 Location: Australia Posts: 1,969	Re: Stipe Cams http://www.modelaparts.net/dynosheets.htm/dmafc.htm Supposedly a stock engine with a "B" cam. Note how the power is good even at 1100 revs. From the web site http://specialtymotorcams.com/pages/camshafts.html "These are excellent performers for A and B Ford 4 cylinder engines. 340Touring cam has excellent torque 1600 to 3000 RPM range. Best run with larger intake valves and Weber carb & 6 or 7 to1 C.R. Head"