Previous Thread
Next Thread
Print Thread
Page 6 of 6 1 2 3 4 5 6
Re: Super duper MPG 318 (part 2) [Re: 360view] #3068057
08/15/22 06:17 AM
08/15/22 06:17 AM
Joined: Jan 2006
Posts: 7,082
USA
3
360view Offline
master
360view  Offline
master
3

Joined: Jan 2006
Posts: 7,082
USA
Just read about the aero of a Hyundai Ioniq 6 and the different tricks it uses to get the Cd down to 0.21

https://en.wikipedia.org/wiki/Hyundai_Ioniq_6

I might be worth looking one over carefully for potential aero mods to a pickup.

The replacement of “elephant ear’ outside mirrors
with thin aero shape video cameras
deserves some pondering

Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3073555
09/02/22 11:55 AM
09/02/22 11:55 AM
Joined: Mar 2010
Posts: 989
Atlanta, GA
M
mgoblue9798 Offline
super stock
mgoblue9798  Offline
super stock
M

Joined: Mar 2010
Posts: 989
Atlanta, GA
Depending upon your level of insanity, you may be interested in this HRD. Computer is set up for 18 to 1 AFR at part throttle cruise.

https://charlotte.craigslist.org/pts/d/concord-auto-chrysler-computer/7522075592.html

Re: Super duper MPG 318 (part 2) [Re: 360view] #3073610
09/02/22 02:46 PM
09/02/22 02:46 PM
Joined: Jan 2006
Posts: 7,082
USA
3
360view Offline
master
360view  Offline
master
3

Joined: Jan 2006
Posts: 7,082
USA
Saw a “Rivian” pickup charging at a Walmart last week.
I noticed that it did not have a front air dam, but did have front “half spads” covering the outside front third of the front tires.
Underbody was very smooth.
At the rear of the underside there was an upward slope creating a “diffuser” like Formula 1 car rears.
Had what appeared to be a factory tonneau of the roll up slat design.

Re: Super duper MPG 318 (part 2) [Re: 360view] #3073618
09/02/22 03:13 PM
09/02/22 03:13 PM
Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
H
HotRodDave Offline OP
I Live Here
HotRodDave  Offline OP
I Live Here
H

Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
I always wonder what all those well scienced out aromatics mods would do to ICE cars? They really have to stretch their imagination to squeeze every last bit of range out of those but never really apply that tech to real cars and trucks.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Super duper MPG 318 (part 2) [Re: 360view] #3089917
10/28/22 12:53 PM
10/28/22 12:53 PM
Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
H
HotRodDave Offline OP
I Live Here
HotRodDave  Offline OP
I Live Here
H

Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
I stumbled across some really nice un-cracked magnum heads for this project so I will be porting them and milling them as much as possible... What do you guys think of sinking the valves in the magnum head a little so I can mill it more??? Would say .050 down hurt flow or anything? Seeing how the intake valve is the limiting factor for milling it more this would allow a little more milling to further reduce the chamber size and get some super size compression going in here. I could shim the springs or maybe run some LS chubby springs... what else am I missing with this idea?


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3090112
10/29/22 05:32 AM
10/29/22 05:32 AM
Joined: Dec 2009
Posts: 19,120
in a cattle trailer down by th...
G
Guitar Jones Offline
Paddle faster! I hear banjo music!
Guitar Jones  Offline
Paddle faster! I hear banjo music!
G

Joined: Dec 2009
Posts: 19,120
in a cattle trailer down by th...
Originally Posted by HotRodDave
I stumbled across some really nice un-cracked magnum heads for this project so I will be porting them and milling them as much as possible... What do you guys think of sinking the valves in the magnum head a little so I can mill it more??? Would say .050 down hurt flow or anything? Seeing how the intake valve is the limiting factor for milling it more this would allow a little more milling to further reduce the chamber size and get some super size compression going in here. I could shim the springs or maybe run some LS chubby springs... what else am I missing with this idea?

I don't think I would sink the valve. I had small chamber W5 heads and they were the same with the valves very close to the deck. I had them shaved down to the seat so the intake valve actually set below the deck surface.


I raise chickens, so I am literally a chicken tender.

The Scamp is sold, now just two old trucks and one newer one.
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Super duper MPG 318 (part 2) [Re: Guitar Jones] #3090201
10/29/22 12:58 PM
10/29/22 12:58 PM
Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
H
HotRodDave Offline OP
I Live Here
HotRodDave  Offline OP
I Live Here
H

Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
Originally Posted by Guitar Jones
Originally Posted by HotRodDave
I stumbled across some really nice un-cracked magnum heads for this project so I will be porting them and milling them as much as possible... What do you guys think of sinking the valves in the magnum head a little so I can mill it more??? Would say .050 down hurt flow or anything? Seeing how the intake valve is the limiting factor for milling it more this would allow a little more milling to further reduce the chamber size and get some super size compression going in here. I could shim the springs or maybe run some LS chubby springs... what else am I missing with this idea?

I don't think I would sink the valve. I had small chamber W5 heads and they were the same with the valves very close to the deck. I had them shaved down to the seat so the intake valve actually set below the deck surface.


Thinking more on it this is probably what I will do then put a nick in the piston if I need it. Sinking the valves will in itself lower compression, going to be chasing very diminishing returns sinking valve and gaining a CC and then milling it to lower it 2 CC. I really wish I could find some drop in flat faced valves for these...


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3090237
10/29/22 02:44 PM
10/29/22 02:44 PM
Joined: Jan 2006
Posts: 7,082
USA
3
360view Offline
master
360view  Offline
master
3

Joined: Jan 2006
Posts: 7,082
USA
Coating the piston crowns and cylinder head chambers with a heat rejecting thermal ceramic coating would reduce the CC’s

The coating alone is also supposed to “approximately” improve fuel economy 3-4%

This technique is at least 20 years old.

I think some BMW M series have it.

Re: Super duper MPG 318 (part 2) [Re: 360view] #3090238
10/29/22 02:49 PM
10/29/22 02:49 PM
Joined: Jan 2006
Posts: 7,082
USA
3
360view Offline
master
360view  Offline
master
3

Joined: Jan 2006
Posts: 7,082
USA
sample quote

Thermal Barrier Piston Coatings

A Thermal Barrier Coating is a spray-on coating usually applied to the top surface of the piston. Its function is to reduce heat transfer into the top of the piston. The benefit of Thermal Barrier Coating is highly dependent on the application and its use. Thermal Barrier Coatings are more effective if other components of the engine such as the combustion chambers, valves, and exhaust system are also coated.

Advantages:

Thermal barrier coatings will reduce heat transfer from the combustion chamber to the piston crown.

Disadvantages:

There is some additional cost added to the price of the piston for adding a Thermal Barrier Coating. While the cost may be somewhat insignificant, there will be additional expenses in coating the other combustion components in order to yield the full benefits of Thermal Barrier Coating. Once the piston is coated, there cannot be any machining or modifications done to the piston crown. If any modifications are needed, the piston will need to be recoated.

Mahle offers its Powerpak piston kits which come with the Grafal coated piston skirts and a phosphate coating. These two coatings are mostly utilized for street and racing applications and have been proven reliable for many years. They are applied during the production process, so it is very inexpensive and well worth the benefits when the cost equates to pennies on the dollar. The other coatings are beneficial but are structured mainly for more specialized applications where engines are under severe and extreme conditions.

The benefits of piston coatings have been debated for many years, but if properly utilized in the right situations, they can be a great way to extend the internal part’s life expectancy and even the performance it delivers. If you think a particular coating might be better for your application or you are not sure which would yield the best results for your engine, give the folks at Mahle Motorsports a call and get the best recommendation from professionals.

end quote

https://www.chevyhardcore.com/tech-...s-when-you-should-and-shouldnt-use-them/

Re: Super duper MPG 318 (part 2) [Re: 360view] #3090239
10/29/22 02:51 PM
10/29/22 02:51 PM
Joined: Jan 2006
Posts: 7,082
USA
3
360view Offline
master
360view  Offline
master
3

Joined: Jan 2006
Posts: 7,082
USA

Re: Super duper MPG 318 (part 2) [Re: 360view] #3090248
10/29/22 03:24 PM
10/29/22 03:24 PM
Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
H
HotRodDave Offline OP
I Live Here
HotRodDave  Offline OP
I Live Here
H

Joined: Jan 2005
Posts: 11,904
Kalispell Mt.
Coating the piston will not increase compression as it is already going to be as close as I dare to the head, with a film on it i will have to reduce piston to head distance the same amount. It would still have the thermal benifit but I would have to measure and make nachos in them before the coating, also if I get too close it will touch the head and possibly mess up the coating on the head and the piston...

Is there any good DIY kits that you know of?


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3090255
10/29/22 03:59 PM
10/29/22 03:59 PM
Joined: Jan 2006
Posts: 7,082
USA
3
360view Offline
master
360view  Offline
master
3

Joined: Jan 2006
Posts: 7,082
USA
I do not know of a DIY kit.

Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3090443
10/30/22 10:49 AM
10/30/22 10:49 AM
Joined: Mar 2010
Posts: 989
Atlanta, GA
M
mgoblue9798 Offline
super stock
mgoblue9798  Offline
super stock
M

Joined: Mar 2010
Posts: 989
Atlanta, GA
I would not sink the valves as you would be cutting through the hardening on the exhaust seats.

Re: Super duper MPG 318 (part 2) [Re: 360view] #3090454
10/30/22 11:19 AM
10/30/22 11:19 AM
Joined: Mar 2010
Posts: 989
Atlanta, GA
M
mgoblue9798 Offline
super stock
mgoblue9798  Offline
super stock
M

Joined: Mar 2010
Posts: 989
Atlanta, GA
Just checked the Swain coatings sight they claim to have a piston coating that reduces octane requirement. I have an email in to them to find out more and will share what they tell me when I hear back.

Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3090485
10/30/22 01:39 PM
10/30/22 01:39 PM
Joined: Jan 2006
Posts: 7,082
USA
3
360view Offline
master
360view  Offline
master
3

Joined: Jan 2006
Posts: 7,082
USA
Dave, do you have any ruined or unacceptably deep cracked Magnum cylinder heads?

I am just wondering whether there is enough metal around the factory spark plug hole threads to bore it out and re-thread for larger sparkplugs with deeper projected noses?

That would remove a few CC’s....

Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3090585
10/30/22 11:45 PM
10/30/22 11:45 PM
Joined: Apr 2004
Posts: 514
Marilla, New York
R
RalleyA12 Offline
mopar
RalleyA12  Offline
mopar
R

Joined: Apr 2004
Posts: 514
Marilla, New York
Check with Techlinecoatings.com they had diy products at one time, not sure if they still do

Re: Super duper MPG 318 (part 2) [Re: HotRodDave] #3092258
11/07/22 10:43 AM
11/07/22 10:43 AM
Joined: Feb 2021
Posts: 131
PINE VALLEY
Ray S Offline
member
Ray S  Offline
member

Joined: Feb 2021
Posts: 131
PINE VALLEY
Check out my 2015 thread on
https://geometroforum.com/viewtopic.php?p=274701#p274701
CBC2 POWERKOTE heat coating
and Tech Line DFL-1 for bearings and cam

It still gets 52 mpg at 70 on a level highway.
28 years old and no one has made a more economical car since.

My 5.7 1997 RAM wagon gets 16 hwy at 70

Page 6 of 6 1 2 3 4 5 6






Powered by UBB.threads™ PHP Forum Software 7.7.1