Peanut Port Drag Test

HP HUNTER · 09-27-2015, 09:36 PM

Ready to race.

Geerhead55 · 09-28-2015, 01:07 PM

Looks good,, let us know how it goes. Whats the rest of the combo?
Danny Durham

HP HUNTER · 09-29-2015, 07:21 AM

Quote:

Originally Posted by Geerhead55

Looks good,, let us know how it goes. Whats the rest of the combo?
Danny Durham

Thanks, 68 Chevelle, T 350, 12 bolt 4.56 gear, 30x9 Hoosier, 3500-3720 depending on ballast, 2 inch header.

Bucky · 09-29-2015, 12:38 PM

I know very little about factory stuff, and less about big block factory stuff. I have an engine on the stand in the shop out of an 80's 3/4 ton truck that will eventually find a home in my wife's 55' F100 (don't start....i know). Just a street truck. How do you identify the factory heads? What's good and what is worthless?

HP HUNTER · 10-05-2015, 07:45 AM

We raced Friday afternoon, Sat rain, Sun rain, so I really never got to dial the car in, I had a stumble on the launch which killed my 60-330, DA was 3253 on the best run, baro 27.80s. Never got to weigh the car because NHRA tech was to lazy to open the scale for me. The car hooked just fine but there was a stumble on the hit which I figured I had two more days to tune out but it rained both days. Timing was 35.5. Theres more there, just need more runs.

Runs in order:

1st pass, shut off 700 feet 660 6.746 1320 11.381 86.41 MPH
2nd pass shut off 1000 feet 660 6.719 1320 10.848 103.70 MPH
3rd pass run through though the 1320 on the rev limiter 660 6.726 1320 10.683 122.47 MPH

Car number 5252

Geerhead55 · 10-05-2015, 01:24 PM

Not a bad start,, could hear the stumble, but sounded good on the gear changes. Maybe a squirter change is needed,, you've been around enough of them to figure out what it wants. Pretty good numbers, considering the moderate cam you're using. Seems like a little vibration going on there in the top end, but overall a good outing. I agree,, more laps will bring better numbers. Thanks for sharing.
We're in the process of sorting out my son's '69 Nova,,, like you, good numbers so far, with more to come. You can check it out on youtube also. Type in: Aaron Durham Nova. Take care.
Danny Durham

Robert Simpson · 10-06-2015, 07:14 AM

HP the car sounds and runs good. I have a couple questions about the cylinder heads.
What drew you to this style head? Vs a 049 style oval port?
Did you have to replace the exhaust seats? Hardened?
How much do you think you increased the volume when finished?
Did you have to fill the intake manifold to match, or was it close?
Do you think there would be any problem using this style head or the 90's version on a tow truck 496CI combination, and if so what cam and intake?

Last is that Scott Welborns old car?

Thank you and keep up the great work it really looks good.

09-27-2015, 09:36 PM	#1
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 656 Likes: 82 Liked 371 Times in 129 Posts	Re: Peanut Port Drag Test Ready to race. Attached Thumbnails

09-28-2015, 01:07 PM	#2
Geerhead55 VIP Member Join Date: Sep 2002 Location: Tacoma, Washington Posts: 1,632 Likes: 0 Liked 5 Times in 5 Posts	Re: Peanut Port Drag Test Looks good,, let us know how it goes. Whats the rest of the combo? Danny Durham

09-29-2015, 12:38 PM	#4
Bucky Junior Member Join Date: Aug 2011 Posts: 16 Likes: 0 Liked 0 Times in 0 Posts	Re: Peanut Port Drag Test I know very little about factory stuff, and less about big block factory stuff. I have an engine on the stand in the shop out of an 80's 3/4 ton truck that will eventually find a home in my wife's 55' F100 (don't start....i know). Just a street truck. How do you identify the factory heads? What's good and what is worthless?

10-05-2015, 07:45 AM	#5
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 656 Likes: 82 Liked 371 Times in 129 Posts	Re: Peanut Port Drag Test We raced Friday afternoon, Sat rain, Sun rain, so I really never got to dial the car in, I had a stumble on the launch which killed my 60-330, DA was 3253 on the best run, baro 27.80s. Never got to weigh the car because NHRA tech was to lazy to open the scale for me. The car hooked just fine but there was a stumble on the hit which I figured I had two more days to tune out but it rained both days. Timing was 35.5. Theres more there, just need more runs. Runs in order: 1st pass, shut off 700 feet 660 6.746 1320 11.381 86.41 MPH 2nd pass shut off 1000 feet 660 6.719 1320 10.848 103.70 MPH 3rd pass run through though the 1320 on the rev limiter 660 6.726 1320 10.683 122.47 MPH Car number 5252 Last edited by HP HUNTER; 10-05-2015 at 07:51 AM.

10-05-2015, 01:24 PM	#6
Geerhead55 VIP Member Join Date: Sep 2002 Location: Tacoma, Washington Posts: 1,632 Likes: 0 Liked 5 Times in 5 Posts	Re: Peanut Port Drag Test Not a bad start,, could hear the stumble, but sounded good on the gear changes. Maybe a squirter change is needed,, you've been around enough of them to figure out what it wants. Pretty good numbers, considering the moderate cam you're using. Seems like a little vibration going on there in the top end, but overall a good outing. I agree,, more laps will bring better numbers. Thanks for sharing. We're in the process of sorting out my son's '69 Nova,,, like you, good numbers so far, with more to come. You can check it out on youtube also. Type in: Aaron Durham Nova. Take care. Danny Durham

10-06-2015, 07:14 AM	#7
Robert Simpson Senior Member Join Date: Aug 2004 Location: Jacksonville, Florida Posts: 807 Likes: 7 Liked 20 Times in 12 Posts	Re: Peanut Port Drag Test HP the car sounds and runs good. I have a couple questions about the cylinder heads. What drew you to this style head? Vs a 049 style oval port? Did you have to replace the exhaust seats? Hardened? How much do you think you increased the volume when finished? Did you have to fill the intake manifold to match, or was it close? Do you think there would be any problem using this style head or the 90's version on a tow truck 496CI combination, and if so what cam and intake? Last is that Scott Welborns old car? Thank you and keep up the great work it really looks good.