20 -1 compression - Competition Diesel.Com

draginmopars · 11-29-2015, 03:20 PM

I have a 89 5.9
got it mocked up, fitted and running
Like my other post "Out Of Time"

The tracks have closed for the season, missed it by a few days, due to weather,
to get to make a base run to see what it would do.
Rather than wait til Feb.
Am going to pull the engine back out
I'm going to pull the head,> port it, 60 lbs springs
shorten the depth, and widen the oil pan sump

So since the engine is head-less and pan-less

Thoughts turned to increasing compression
If I'm "Out There"
let me know

haven't calculated how much yet,
to remove from the deck, pistons, etc, until i have the head off

the plan is

Deck the block,
mill the pistons > to get back needed head, and valve clearance
balance engine
shim the injectors ( distance that the block was decked, so that they still spray in the same spot, in the bowl as before the machining

basically, just moving the bowl up, to gain compression

I have the time and machinery, except for balancing the crank

What do you think>.
a Waste of time ???????

I'm thinking more compression> less timing

*JQmile* · 11-29-2015, 03:24 PM

I'd leave it alone....I'd probably o-ring or fire-ring the head since it's off, but that's it. A lot of really high hp guys drop compression rather than raise it. With a diesel, you can always add more boost!

Dman1198 · 11-30-2015, 01:14 PM

Eric Gilbert at the hungry diesel upped the compression with his ramchargers new engine. He ended up at 18.25:1 compression with something similar to a 188/220, and a 24v head. I'm not positive where he has his timing, but he's said it's very responsive.

I'm going to do the same with my ve 24v. Though I think I'll use a smaller cam

12vriviera · 11-30-2015, 01:58 PM

Get with Zach Hamilton.

He loves high compression. has a different sound completely to it.. he can for sure help you with finer points abd what to look out for.

Rich dzl · 11-30-2015, 04:35 PM

I tried 19.1 years ago and didn't like it , good low mid range but gave up top end power .

Dman1198 · 11-30-2015, 05:58 PM

What pump did you use?

draginmopars · 11-30-2015, 06:48 PM

Quote:

Originally Posted by Dman1198

What pump did you use?

VE pump

12vriviera · 11-30-2015, 08:52 PM

Definitely need a wife spray angle and a way to get rate up of fuel injected...
To minimize burn length time..

Like I said..
Hamilton it's the only one I have known to run 21 to1 comp..
I am kicking 17.5 or so around and it runs rather well

*Bodacious* · 11-30-2015, 10:21 PM

All right rivi. What's up with this wife spray pattern secret squirrel stuff???

12vriviera · 12-01-2015, 09:44 PM

Quote:

Originally Posted by Bodacious

All right rivi. What's up with this wife spray pattern secret squirrel stuff???

All depends on the work you put in!!

Wide*

11-29-2015, 03:20 PM	#1
draginmopars Name: draginmopars Title: Diesel Enthusiast Status: Not Here Join Date: Sep 2011 Location: Nashville,tn Member`s Gallery Posts: 102	20 -1 compression I have a 89 5.9 got it mocked up, fitted and running Like my other post "Out Of Time" The tracks have closed for the season, missed it by a few days, due to weather, to get to make a base run to see what it would do. Rather than wait til Feb. Am going to pull the engine back out I'm going to pull the head,> port it, 60 lbs springs shorten the depth, and widen the oil pan sump So since the engine is head-less and pan-less Thoughts turned to increasing compression If I'm "Out There" let me know haven't calculated how much yet, to remove from the deck, pistons, etc, until i have the head off the plan is Deck the block, mill the pistons > to get back needed head, and valve clearance balance engine shim the injectors ( distance that the block was decked, so that they still spray in the same spot, in the bowl as before the machining basically, just moving the bowl up, to gain compression I have the time and machinery, except for balancing the crank What do you think>. a Waste of time ??????? I'm thinking more compression> less timing Last edited by draginmopars; 11-29-2015 at 03:22 PM.

11-29-2015, 03:24 PM	#2
JQmile Name: JQmile Title: Comp Diesel Sponsor Status: Not Here Join Date: Nov 2006 Member`s Gallery Posts: 6,976	I'd leave it alone....I'd probably o-ring or fire-ring the head since it's off, but that's it. A lot of really high hp guys drop compression rather than raise it. With a diesel, you can always add more boost! __________________ 89 Dodge 972rwhp on the hose, still a VE!

11-30-2015, 01:58 PM	#4
12vriviera Name: 12vriviera Title: That Guy with that car Status: Not Here Join Date: Mar 2009 Location: north texas Member`s Gallery Posts: 6,846	Get with Zach Hamilton. He loves high compression. has a different sound completely to it.. he can for sure help you with finer points abd what to look out for. __________________ Brandon Carr. Owner of the 24V RIV Competition Diesel.Com - Bringing The BEST Together I am a pushover https://www.facebook.com/#!/24VRIVIERA

11-30-2015, 08:52 PM	#8
12vriviera Name: 12vriviera Title: That Guy with that car Status: Not Here Join Date: Mar 2009 Location: north texas Member`s Gallery Posts: 6,846	Definitely need a wife spray angle and a way to get rate up of fuel injected... To minimize burn length time.. Like I said.. Hamilton it's the only one I have known to run 21 to1 comp.. I am kicking 17.5 or so around and it runs rather well __________________ Brandon Carr. Owner of the 24V RIV Competition Diesel.Com - Bringing The BEST Together I am a pushover https://www.facebook.com/#!/24VRIVIERA

11-30-2015, 10:21 PM	#9
Bodacious Name: Bodacious Title: Comp Diesel Sponsor Status: Not Here Join Date: Jul 2013 Location: Weston, WV Member`s Gallery Posts: 2,177	All right rivi. What's up with this wife spray pattern secret squirrel stuff??? __________________ "Careful who you argue with on the internet. Others might not know they are idiots."

11-30-2015, 04:35 PM	#5
Rich dzl Name: Rich dzl Title: 12v guru Status: Not Here Join Date: Mar 2011 Member`s Gallery Posts: 741	I tried 19.1 years ago and didn't like it , good low mid range but gave up top end power .