I'm going to build a smooth idle 427 and drag test it

HP HUNTER · 02-06-2021, 07:42 PM

Quote:

Originally Posted by MAURICE BLENDHEIM

HP... I'm just wondering if you made any pulls starting at a lower RPM ? It would be interesting to see what the TORQUE numbers would be from say 2500-3500rpm. Very Good results from this project. MB

Thanks, I didn't pull it lower than 3500, I knew I'd never see that on the track, I doubt there was more TQ below 3500. I can tell you from driving the car off idle TQ is very good, but as you know theres always a trade off-and I'm sure it going to be on the top. But it sure runs good, just wonder what it could have made if I really got after it, intake work, oil pan work, lightened the bottom end up, 1.8 intake rocker, more compression. Vacuum was 15 inches @ 750 RPM @ 6400 feet altitude. Heres a video.

Glenn Briglio · 02-07-2021, 10:16 AM

Quote:

Originally Posted by HP HUNTER

Thanks, I didn't pull it lower than 3500, I knew I'd never see that on the track, I doubt there was more TQ below 3500. I can tell you from driving the car off idle TQ is very good, but as you know theres always a trade off-and I'm sure it going to be on the top. But it sure runs good, just wonder what it could have made if I really got after it, intake work, oil pan work, lightened the bottom end up, 1.8 intake rocker, more compression. Vacuum was 15 inches @ 750 RPM @ 6400 feet altitude. Heres a video.

There is more torque at lower rpm. Look where the tq is at 3500 rpm. Your correct and probably never see it at the track.

Painter · 02-07-2021, 03:23 PM

Who did the carbs?

HP HUNTER · 02-07-2021, 08:23 PM

1. Harold Bettes Dissident
2. Vintage Muscle Car

gmonde · 02-07-2021, 09:21 PM

whats the weight on the car w/driver?

HP HUNTER · 02-07-2021, 09:32 PM

Quote:

Originally Posted by gmonde

whats the weight on the car w/driver?

3500 with no extra weight added.

Mark Yacavone · 02-07-2021, 11:04 PM

I see 10.83 or .84 at sea level ;-)

Mr.L-88 · 06-25-2021, 03:03 PM

Mark,

Have you had a chance to get this combo back on the track yet? I would seriously be interested in seeing two things. 1. What a ported intake would do. 2. What a modern lobe would bring to the table.

Mark Yacavone · 07-18-2021, 03:50 PM

Quote:

Originally Posted by Mark Yacavone

I see 10.83 or .84 at sea level ;-)

Well now... Good show, Marky

02-07-2021, 03:23 PM	#3
Painter Member Join Date: Dec 2012 Posts: 227 Likes: 4 Liked 162 Times in 45 Posts	Re: I'm going to build a smooth idle 427 and drag test it Who did the carbs?

02-07-2021, 08:23 PM	#4
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 657 Likes: 87 Liked 373 Times in 129 Posts	Re: I'm going to build a smooth idle 427 and drag test it 1. Harold Bettes Dissident 2. Vintage Muscle Car

02-07-2021, 09:21 PM	#5
gmonde Senior Member Join Date: Nov 2007 Posts: 615 Likes: 56 Liked 165 Times in 59 Posts	Re: I'm going to build a smooth idle 427 and drag test it whats the weight on the car w/driver?

02-07-2021, 11:04 PM	#7
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,845 Likes: 2,939 Liked 5,157 Times in 1,969 Posts	Re: I'm going to build a smooth idle 427 and drag test it I see 10.83 or .84 at sea level ;-) __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers

06-25-2021, 03:03 PM	#8
Mr.L-88 Junior Member Join Date: Apr 2009 Location: Missouri Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: I'm going to build a smooth idle 427 and drag test it Mark, Have you had a chance to get this combo back on the track yet? I would seriously be interested in seeing two things. 1. What a ported intake would do. 2. What a modern lobe would bring to the table.