Spark plug Recommendation for Pro1 215 - Page 4

Jamieb · 11-15-2009, 03:19 PM

thank you Bill

Awesome Bill · 11-15-2009, 03:38 PM

AR3935 or #9 NGK

Trmnatr · 11-15-2009, 11:31 PM

Quote:

Originally Posted by Jamieb

When these heads are on a flow bench they are flowed @ 28" , The running engine cam see 55" easy and can see over 100"

You do realize that you can figure what your head is going to flow at 100" by using your #'s at 28" right? The # at 28" is just a unit of measure. Have you ever seen a bench that flows 10"? All you have to do is Calculate up to the 28" #. So it doesn't matter what vacum you pull the head is going to flow what it flows.

NO

You can flow fine @ 28" and it will show XXX @ 100" but if you were to flow the head @55" to 100" and find airflow problems within the port design

Jamieb · 11-24-2009, 01:38 AM

Sorry it has been so long, but...... What is atmospheric pressure at sea level? oh and what does wet flow show you?

lun40119 · 11-24-2009, 02:17 AM

Jamie who are you. Do you own a business porting heads. Do you work for a guy who does. Are you a car nut with a google button. When you first got here you were full of questions. Now we are talking about atmospheric pressure, and what you have seen wetflow do. Hit the newb section, introduce yourself. I think alot of this crap will stop rubbing me wrong if you do. Read this thread, not sure if your google button found it. It is a great read.

http://yellowbullet.com/forum/showthread.php?t=145275

lun40119 · 11-24-2009, 11:30 AM

Quote:

Originally Posted by Jamieb

Sorry it has been so long, but...... What is atmospheric pressure at sea level? oh and what does wet flow show you?

Wet flow shows you how the fuel acts in the runner and as it enters the chamber. Watch the video. Its a really good vid.

Jamieb · 11-25-2009, 12:04 AM

Quote:

Originally Posted by Trmnatr

NO

You can flow fine @ 28" and it will show XXX @ 100" but if you were to flow the head @55" to 100" and find airflow problems within the port design

What I was getting at is why do you think an engine can see that much vacum? Why do you think that 28" is the industry standard for flow benches?

Awesome Bill · 11-29-2009, 01:24 PM

AR135 Seated Plug and AR3935 for Washer or NGK eqv.

snakeeater1968 · 02-06-2010, 02:23 PM

Quote:

Originally Posted by Jamieb

I am in the final stages of building my Iron eagle based 427 sbc and I am looking for recommendations on spark plug #'s. It is a Street/Strip deal with 11-1 compression 672 lift roller cam, CNC'd old style Pro1 heads, t&d Shaft mount rockers, Eagle rotating assembly, CNC'd 2975 Victor Jr., HVH super sucker, Aed 850 Ho Carb. I have always been partial to NGK plugs, but any recommendations would be appreciated.

how did your set up end up working out....what size intake runners do you have on it???

Jamieb · 02-13-2010, 12:42 AM

They started out as pro 1 215s and after a trip to HVH in Tenessee they ended up at 225. I have completed building the engine and just haven't had time to go to the dyno to run it in and pull it. I will post as soon as I do. Probably going to be in March. I still would like to know how an engine can see 55" naturally aspirated

11-15-2009, 03:38 PM	#32
Awesome Bill Status: Venerable Member Join Date: Oct 2007 Location: Ocean City, MD Posts: 1,860	AR3935 or #9 NGK __________________ - Bill Cannon - - Custom Drag Racing Engines & Transmissions - Awesome Engines -

11-24-2009, 01:38 AM	#34
Jamieb Status: Member Join Date: Mar 2009 Posts: 53	Sorry it has been so long, but...... What is atmospheric pressure at sea level? oh and what does wet flow show you? Last edited by Jamieb; 11-24-2009 at 02:06 AM.

11-24-2009, 02:17 AM	#35
lun40119 Status: Venerable Member Join Date: Jan 2008 Location: WI Posts: 1,621	Jamie who are you. Do you own a business porting heads. Do you work for a guy who does. Are you a car nut with a google button. When you first got here you were full of questions. Now we are talking about atmospheric pressure, and what you have seen wetflow do. Hit the newb section, introduce yourself. I think alot of this crap will stop rubbing me wrong if you do. Read this thread, not sure if your google button found it. It is a great read. http://yellowbullet.com/forum/showthread.php?t=145275 __________________ Jake "The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man." -George Bernard Shaw

11-29-2009, 01:24 PM	#38
Awesome Bill Status: Venerable Member Join Date: Oct 2007 Location: Ocean City, MD Posts: 1,860	AR135 Seated Plug and AR3935 for Washer or NGK eqv. __________________ - Bill Cannon - - Custom Drag Racing Engines & Transmissions - Awesome Engines -

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11-15-2009, 03:19 PM	#31
Jamieb Status: Member Join Date: Mar 2009 Posts: 53	thank you Bill

02-13-2010, 12:42 AM	#40
Jamieb Status: Member Join Date: Mar 2009 Posts: 53	They started out as pro 1 215s and after a trip to HVH in Tenessee they ended up at 225. I have completed building the engine and just haven't had time to go to the dyno to run it in and pull it. I will post as soon as I do. Probably going to be in March. I still would like to know how an engine can see 55" naturally aspirated