Coolant Bypass Kits - Dodge Cummins Diesel Forum
98.5-02 Performance Parts Discussion Discussion of Performance Parts For the 98-02 Trucks No Advertising ...NO ADVERTISING

 4Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 50 (permalink) Old 01-11-2017, 11:37 AM Thread Starter
Cummins Fan
 
Samich24v's Avatar
 
Join Date: Sep 2016
Location: Terry, MS
Posts: 54
Thanks: 4
Thanked 6 Times in 4 Posts
iTrader Score: 0 reviews
Coolant Bypass Kits

Who all makes bypass kits for 2nd gens?

trying to decide which route to go, i like the temp regulator idea of the fleece, but i would rather not spend that much money, not against putting my own kit together, just looking at options.


2001 2500 4x4 6 speed
WORK IN PROGRESS
p pump, some more fuel, some extra air
Samich24v is offline  
Sponsored Links
Advertisement
 
post #2 of 50 (permalink) Old 01-11-2017, 02:24 PM
Diesel Freak
 
gmanss's Avatar
 
Join Date: Nov 2011
Location: Wilmington, NC
Posts: 651
Thanks: 33
Thanked 62 Times in 58 Posts
iTrader Score: 0 reviews
This is how I did mine. I used an E.D. plate and bought the fittings from my local hardware store and used a generic watts valve. I built the Y section with pieces of galanized piping I had laying around.





[IMG][/IMG]

98 QCLB 12v he351cw over billet S475 5x.016, 7mm DV's 4kgsk, Walbro 450lph, 5" Exhaust, DPC Converter, Billet Input, Firepunk Competition Rebuild Kit
gmanss is offline  
post #3 of 50 (permalink) Old 01-11-2017, 02:36 PM Thread Starter
Cummins Fan
 
Samich24v's Avatar
 
Join Date: Sep 2016
Location: Terry, MS
Posts: 54
Thanks: 4
Thanked 6 Times in 4 Posts
iTrader Score: 0 reviews
What pressure did you set your watts at?


Sent from my iPhone using Tapatalk

2001 2500 4x4 6 speed
WORK IN PROGRESS
p pump, some more fuel, some extra air
Samich24v is offline  
 
post #4 of 50 (permalink) Old 01-11-2017, 02:48 PM
Diesel Freak
 
gmanss's Avatar
 
Join Date: Nov 2011
Location: Wilmington, NC
Posts: 651
Thanks: 33
Thanked 62 Times in 58 Posts
iTrader Score: 0 reviews
I set it about 45psi.

98 QCLB 12v he351cw over billet S475 5x.016, 7mm DV's 4kgsk, Walbro 450lph, 5" Exhaust, DPC Converter, Billet Input, Firepunk Competition Rebuild Kit
gmanss is offline  
post #5 of 50 (permalink) Old 01-11-2017, 02:49 PM Thread Starter
Cummins Fan
 
Samich24v's Avatar
 
Join Date: Sep 2016
Location: Terry, MS
Posts: 54
Thanks: 4
Thanked 6 Times in 4 Posts
iTrader Score: 0 reviews
Whats your reasoning? What started this research for me is seein what everyone has set theirs at.

Why is that much pressure required?


Sent from my iPhone using Tapatalk

2001 2500 4x4 6 speed
WORK IN PROGRESS
p pump, some more fuel, some extra air
Samich24v is offline  
post #6 of 50 (permalink) Old 01-11-2017, 03:00 PM
Diesel Freak
 
gmanss's Avatar
 
Join Date: Nov 2011
Location: Wilmington, NC
Posts: 651
Thanks: 33
Thanked 62 Times in 58 Posts
iTrader Score: 0 reviews
There was a thread on comps awhile back where someone had tested the pressure at various rpms. At around 4k rpm the rear port was seeing 90+psi which is where most guys pop the freeze plug so 45psi is half of that and theoretically should start to pop around 3k rpms based off of his test numbers.

98 QCLB 12v he351cw over billet S475 5x.016, 7mm DV's 4kgsk, Walbro 450lph, 5" Exhaust, DPC Converter, Billet Input, Firepunk Competition Rebuild Kit
gmanss is offline  
post #7 of 50 (permalink) Old 01-11-2017, 03:02 PM Thread Starter
Cummins Fan
 
Samich24v's Avatar
 
Join Date: Sep 2016
Location: Terry, MS
Posts: 54
Thanks: 4
Thanked 6 Times in 4 Posts
iTrader Score: 0 reviews
Gotcha! Thanks. I havent been able to find any info on that. I think i am goin to put a pressure gauge in p port on the head on mine and see where it is at what rpm and decide where to set it from there.


Sent from my iPhone using Tapatalk

2001 2500 4x4 6 speed
WORK IN PROGRESS
p pump, some more fuel, some extra air
Samich24v is offline  
post #8 of 50 (permalink) Old 01-11-2017, 08:27 PM Thread Starter
Cummins Fan
 
Samich24v's Avatar
 
Join Date: Sep 2016
Location: Terry, MS
Posts: 54
Thanks: 4
Thanked 6 Times in 4 Posts
iTrader Score: 0 reviews
I'm think i am going to set mine around 20-25, if not buy the fleece kit. I like the idea of it being open in the lower rpm range as well. Only time too much flow can hurt is warming up.


Sent from my iPhone using Tapatalk

2001 2500 4x4 6 speed
WORK IN PROGRESS
p pump, some more fuel, some extra air
Samich24v is offline  
post #9 of 50 (permalink) Old 01-12-2017, 08:40 AM
Diesel Head
 
jlbayes's Avatar
 
Join Date: Dec 2010
Location: michigan
Posts: 12,287
Thanks: 1,544
Thanked 2,172 Times in 1,793 Posts
iTrader Score: 1 reviews
Which was a HUGE issue with the Fleece kit.

Jacob, "strictly business" 01 grumpy sob, Calibrated Addiction, Infinite Performance, Farrell Diesel, 97 rclb
jlbayes is online now  
post #10 of 50 (permalink) Old 01-12-2017, 08:46 AM Thread Starter
Cummins Fan
 
Samich24v's Avatar
 
Join Date: Sep 2016
Location: Terry, MS
Posts: 54
Thanks: 4
Thanked 6 Times in 4 Posts
iTrader Score: 0 reviews
I knew eventually you would find this thread. And hopefully can give a little more advice than the motards on facebook. (Justin Starnes here btw).

But what exactly was the issue with the fleece kit? Being open all the time?


Sent from my iPhone using Tapatalk

2001 2500 4x4 6 speed
WORK IN PROGRESS
p pump, some more fuel, some extra air
Samich24v is offline  
post #11 of 50 (permalink) Old 01-12-2017, 10:15 AM
Diesel Head
 
jlbayes's Avatar
 
Join Date: Dec 2010
Location: michigan
Posts: 12,287
Thanks: 1,544
Thanked 2,172 Times in 1,793 Posts
iTrader Score: 1 reviews
I've been keeping an eye on it. I want to bleach my eyes after the nonsense on fb last night and this morning. So the fleece kits circulate based off of temp, ok cool until the thermostat fails. Which was the issue. The stand the Lindeman and Matt use introduce coolant before the thermostat using pressure. Which is what I would suggest. Say the watts valve ever fails either closed or open, you will not have the issues with the engine never warming up. This is strictly a pressure issue with the water pump and poor circulation at the back of the block.

Jacob, "strictly business" 01 grumpy sob, Calibrated Addiction, Infinite Performance, Farrell Diesel, 97 rclb
jlbayes is online now  
post #12 of 50 (permalink) Old 01-12-2017, 01:08 PM Thread Starter
Cummins Fan
 
Samich24v's Avatar
 
Join Date: Sep 2016
Location: Terry, MS
Posts: 54
Thanks: 4
Thanked 6 Times in 4 Posts
iTrader Score: 0 reviews
I see your point about the tStat failing. And it is a very good one. Whats your input as far as a lower pressure setting. Am i wrong in thinking it would work better set at a lower pressure. Say 25ish? in (my) theory it would be opening 1500-2000 rpm. Which would be a good rpm to keep it cooling well. I'm tryin not to overthink this as i seem to do that a lot, but i want to do whats best for my engine. I dont have the money to build it multiple times, so i want to do it RIGHT the first time.


Sent from my iPhone using Tapatalk

2001 2500 4x4 6 speed
WORK IN PROGRESS
p pump, some more fuel, some extra air
Samich24v is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Dodge Cummins Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome