|
01-23-2022, 02:46 PM | #31 | |
VIP Member
Join Date: Feb 2003
Location: Glendale, Arizona
Posts: 2,998
Likes: 693
Liked 1,469 Times in 549 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Quote:
On a small Cessna airplane, waxing the exterior increased the airspeed by 3.5 MPH |
|
Liked |
01-23-2022, 02:55 PM | #32 |
Member
Join Date: Jul 2016
Location: Riviere-du-Loup, (QC) Canada
Posts: 337
Likes: 1,461
Liked 604 Times in 178 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Dear SSDiv6,
I will throw this add up to your paint preparation subject and just for discussion or the fun of it (with no disregard to your point) an even if this isn’t in direct relation with the title subject. I was at the Napierville Nationals Open Series few years ago and I was taking a close look at the NHRA “open tech barn” at the back of the tower. A certain stocker had his engine check for the approval of new E.T. record, for the second year in a row. While waiting and checking the Tech’s work, the car parts, suddenly a small detail pop-up… The golf ball effect…The car had a good or important orange peel surface… Last edited by Charles Stewart; 01-24-2022 at 09:32 AM. Reason: word correction |
01-23-2022, 04:09 PM | #33 | |
Member
Join Date: May 2020
Posts: 428
Likes: 427
Liked 389 Times in 196 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Quote:
Fact?... or fiction?... |
|
Liked |
01-23-2022, 04:19 PM | #34 |
VIP Member
Join Date: Dec 2007
Location: Woodlawn IL
Posts: 1,093
Likes: 162
Liked 220 Times in 79 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Earlier in the thread somebody mentioned price. I bought my heads from another racer. So I don’t know. But is that accurate $5,000 for new stocker heads and $1,800 for an intake? And is that assuming you supply them with good cores to start with? I’m just curious. If you think about it. Even if you knew how to do it and what do do. By the time you bought all the equipment to do it. You’d have to do probably 100 sets of heads or more to break even on used equipment. So in the end for most of us it’s still cheaper. Although expensive. Plus you theoretically get all their R&D as things advance over time. Again I’m just curious at some point I’ll get a new set. But for now these ones I have will have to do. If you don’t want to say here. Feel free to PM me.
Last edited by Rob Petrie E395; 01-23-2022 at 04:20 PM. Reason: Trying to fix my poor spelling and grammar. |
01-23-2022, 04:49 PM | #35 | |
Member
Join Date: Dec 2013
Posts: 311
Likes: 2
Liked 9 Times in 8 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Quote:
__________________
__________________ Bill Diehl B200 C/D STK Last edited by Bill Diehl; 01-23-2022 at 04:53 PM. |
|
01-23-2022, 05:23 PM | #36 | |
Senior Member
Join Date: Apr 2020
Location: Phila, PA
Posts: 660
Likes: 0
Liked 584 Times in 315 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Quote:
You missed one, velocity. CFM, CSA, and Velocity are like the 3 sides of a pythagorean triangle. If you know any 2 the 3rd is easily calculated. Stan Last edited by Stan Weiss; 01-23-2022 at 05:57 PM. |
|
Liked |
01-23-2022, 07:24 PM | #37 | |
Senior Member
Join Date: Sep 2009
Posts: 840
Likes: 931
Liked 2,328 Times in 458 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Quote:
Using the 15 hp number to go .7 you would need to pick up 105hp. That would be 97 hp from head minus the intake. I think I use one of the best out there but if you have someone that can get me 100 hp from a set of heads please let me know. BP Last edited by B Parker; 01-24-2022 at 07:52 PM. |
|
Liked |
01-23-2022, 08:05 PM | #38 |
Senior Member
Join Date: Apr 2020
Location: Phila, PA
Posts: 660
Likes: 0
Liked 584 Times in 315 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Barry,
I don't have time to optimize these simulations. 60 Foot ET = 1.3610 330 Foot ET = 4.0108 1/8 Mile ET = 6.3058 1/8 Mile MPH = 106.6345 1000 Foot ET = 8.2990 1/4 Mile ET = 9.9840 1/4 Mile MPH = 134.2295 60 Foot ET = 1.3746 330 Foot ET = 4.0519 1/8 Mile ET = 6.3693 1/8 Mile MPH = 105.5199 1000 Foot ET = 8.3839 1/4 Mile ET = 10.0866 1/4 Mile MPH = 132.8920 Race weight with driver 3375 #. 17 HP difference Stan |
01-23-2022, 11:07 PM | #39 | |
Senior Member
Join Date: Sep 2009
Posts: 840
Likes: 931
Liked 2,328 Times in 458 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Quote:
|
|
01-24-2022, 11:49 AM | #40 |
Senior Member
Join Date: Sep 2009
Posts: 840
Likes: 931
Liked 2,328 Times in 458 Posts
|
Re: Cylinder head flow - What is crucial in a stocker?
Stan I just sold my business. I'm helping with the transition but I'm only working about 20 hrs. a week. Down from 10hrs a day 7days a week. I had 19 employees. What a weight off my shoulders. I'm 66 and feel I should've done it 2 years ago. Don't wait too late. Get out while we have our health. BP
|
Liked |
|
|