Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: dogdays]
#2309236
05/22/17 06:29 PM
05/22/17 06:29 PM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
Every Dog has its day!. I would see how far in the hole you are right now for a baseline/start.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: mgoblue9798]
#2309788
05/23/17 02:23 PM
05/23/17 02:23 PM
|
Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
If you mill .070 off the block you will have to run a really thick head gasket to keep the piston from hitting the head.
I have a set of KB107 pistons that are .030 over and they are a hair heavier than a stock magnum piston, can't speak for a std bore kb107. I would not run a new piston in a used block with 30K miles on it if the new ring moves higher up the bore than the old ring, there will be a slight distortion that can unseat the ring when cylinder preassure is at its highest.
If I was in your boat I would have it squared, then .035 milled off and run the .039 fel pro and not the .054 that comes in all the kits or you could mill around .030 and run the mr gasket .028 one.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: mgoblue9798]
#2310438
05/24/17 04:39 PM
05/24/17 04:39 PM
|
Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
My numbers come from actually measureing engines as assembled by chrysler with a depth gauge and feeler and straight edge methods not a bunch of "supposed to be this way" numbers. I don't know where the difference is but I have messed with tons of 5.9 mags and that is the normal numbers for deck clearance.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: mgoblue9798]
#2310715
05/25/17 01:22 AM
05/25/17 01:22 AM
|
Joined: Apr 2016
Posts: 184 Memphis,TN
J. Hammer
member
|
member
Joined: Apr 2016
Posts: 184
Memphis,TN
|
I'm not sure why you'd do either? Sounds like a street/daily driver? The issue is the lack of valve reliefs(not a problem for your situation). Put a thin head gasket on it(if you want a bit more comp)and go. The stock pistons are approx .050" in the hole,no big deal.
Last edited by J. Hammer; 05/25/17 01:23 AM.
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: Pale_Roader]
#2310768
05/25/17 06:15 AM
05/25/17 06:15 AM
|
Joined: Apr 2016
Posts: 184 Memphis,TN
J. Hammer
member
|
member
Joined: Apr 2016
Posts: 184
Memphis,TN
|
LOL I got that. Id guess as a 40yr veteran mopar racer I'd ask where are the important gains in any build? "quench" is waaay down the list,but on this site its just like gold(lol),not close and Id gladly give a point of comp for the better ring pack of the factory piston all day. We have made over 600hp on the factory junk short block,yep it only made it 6yrs but it had no quench.lol Some folks would trip over a nickel and miss a quarter.
Last edited by J. Hammer; 05/25/17 06:20 AM.
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: mgoblue9798]
#2312101
05/27/17 07:26 PM
05/27/17 07:26 PM
|
Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
My 318 magnum I went from the factory .086 quench distance to .038 made it ping a lot less as well as better MPG TQ and HP. That was the only change at that time, I even took it to LA and pulled a car up those big hills on my open trailer at sea leval and no pinging on 87 octane california crap gas. After that experiment I am a big fan of maximizing quench area and minimizing quench distance.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: HotRodDave]
#2312144
05/27/17 09:41 PM
05/27/17 09:41 PM
|
Joined: Jan 2005
Posts: 4,862 the frozen wastes...
Pale_Roader
Swears too much
|
Swears too much
Joined: Jan 2005
Posts: 4,862
the frozen wastes...
|
My 318 magnum I went from the factory .086 quench distance to .038 made it ping a lot less as well as better MPG TQ and HP. That was the only change at that time, I even took it to LA and pulled a car up those big hills on my open trailer at sea leval and no pinging on 87 octane california crap gas. After that experiment I am a big fan of maximizing quench area and minimizing quench distance. My goal with this 2000 360 Magnum i just bought is .030" quench. Might take some decking... but i paid very little for the engine, so i think its worth an experiment. I kinda wanted to go with the 318... seemed a better choice for less machining, more tolerance, better piston shape... many details... but i just got such a sick deal on this 360 i couldn't pass it up. 360view... i think you'd just be better off with the machining. Thats a lot of thickness to ask from coatings and such... and (it would seem to me at least) a little hokey.
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: HotRodDave]
#2312183
05/28/17 12:18 AM
05/28/17 12:18 AM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
My 318 magnum I went from the factory .086 quench distance to .038 made it ping a lot less as well as better MPG TQ and HP. That was the only change at that time, I even took it to LA and pulled a car up those big hills on my open trailer at sea leval and no pinging on 87 octane california crap gas. After that experiment I am a big fan of maximizing quench area and minimizing quench distance. What was your SCR before and after? & nothing else was changed/adjusted/altered?
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: mgoblue9798]
#2313660
05/30/17 05:02 PM
05/30/17 05:02 PM
|
Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
Robert I think I calculated it went from almost exactly 9.0 to 10.0 and no other changes, I even used the rings and bearings again. Later I tried a few of my other tricks (ford injectors, 205*tstat, electric fan...) but it seems to get to a point of diminishing returns adding MPG tricks. About the only one I didn't try that I really wanted to was going from a 3.55 to a 3.21 rear gear. I am about to do the same zero deck/tight quench experiment on my 2011 5.7 hemi truck.
EGR adds to the total amount of gasses being pumped through the engine therby increasing pumping losses (This is why chrysler went to the MDS system for increased MPG). It also slows down the burn speed requiring earlier ignition and more negative work on the crank. I am still not buying that it can help MPG HC TQ or HP or anything except reduced NOX, same with watter injection except in that case it also removes a lot of heat from the chamber as it evaporates, heat increases pressure and increased pressure means more power instead of burning fuel simply to evaporate water. All my expereminting backs up my theory. Getting the right fuel or tuning would be better.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: mgoblue9798]
#2313798
05/30/17 09:00 PM
05/30/17 09:00 PM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
You got good quench/went from 9-1 to 10-1 & more power/no pinging on 87/no other changes. that is incredible! what a success. Makes a believer out of me.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: 5.9 magnum build sqr deck block .070 or buy kb107 &balance?
[Re: RapidRobert]
#2314039
05/31/17 05:10 AM
05/31/17 05:10 AM
|
Joined: Jan 2005
Posts: 4,862 the frozen wastes...
Pale_Roader
Swears too much
|
Swears too much
Joined: Jan 2005
Posts: 4,862
the frozen wastes...
|
You got good quench/went from 9-1 to 10-1 & more power/no pinging on 87/no other changes. that is incredible! what a success. Makes a believer out of me. Me too... i think its worth the machining. We're not talking numbers 340's here... screw one up, you're out a couple hundred bucks and the machining.
|
|
|
|
|