Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > Vendor Row > Sponsor Forums > JGS Turbo
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Closed Thread
 
Thread Tools
Old 07-22-2013, 09:52 AM   #1
RonA
 
RonA's Avatar

Name: RonA
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: Planet Mars
Member`s Gallery
Posts: 8,866
50mm gate spring question.

Good morning Lance.
What would be your best guess on the change in opening pressure between running the 50mm gate with the stiffest large spring, and running the stiffest large spring with the added smaller spring that fits in the middle. Also, what grease do you recommend on the piston O-rings when I put it back together?
Thanks.
Ron Allen
__________________
Support Global Warming. Polar Bears are tired of freezing their butts off.
 
Old 07-22-2013, 10:14 AM   #2
jgsturbo

Name: jgsturbo
Title: caveman
Status: Not Here
Join Date: Dec 2011
Member`s Gallery
Posts: 457
We use high temp silicone O-ring lube from mcmaster.com, that's the best I found. A little silicone grease they sell for caliper slides seems okay too.
Just apply the thinnest skim of lube.
What a spring is worth depends on which gate your installing it.
The large top 500R the springs are worthless in terms of actuator pressure.
I had this all worked out some where, IIRC the preload of the small heavy should be worth 10-12psi of top pressure. The large heavy is similar if not a little lighter.
__________________
Lance Humbert
JGS Precision Turbo Control Products
 
Old 07-22-2013, 10:31 AM   #3
jgsturbo

Name: jgsturbo
Title: caveman
Status: Not Here
Join Date: Dec 2011
Member`s Gallery
Posts: 457
And when I say actuator pressure I mean pressure applied in the top wastegate port.
__________________
Lance Humbert
JGS Precision Turbo Control Products
 
Old 07-22-2013, 10:45 AM   #4
RonA
 
RonA's Avatar

Name: RonA
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: Planet Mars
Member`s Gallery
Posts: 8,866
This is what I have.
2.33 piston
.162dia. large spring
.125 inner spring.
Attached Images
File Type: jpg 001.jpg (80.2 KB, 0 views)
__________________
Support Global Warming. Polar Bears are tired of freezing their butts off.
 
Old 07-22-2013, 11:33 AM   #5
jgsturbo

Name: jgsturbo
Title: caveman
Status: Not Here
Join Date: Dec 2011
Member`s Gallery
Posts: 457
I knew I had a 50/50 chance... In that case-
Changes it to +12-15psi by adding smaller spring.
Again this is a rough guesstimate of what the spring pre-load is worth in top port air pressure.
__________________
Lance Humbert
JGS Precision Turbo Control Products
 
Old 07-22-2013, 11:43 AM   #6
RonA
 
RonA's Avatar

Name: RonA
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: Planet Mars
Member`s Gallery
Posts: 8,866
Quote:
Originally Posted by jgsturbo View Post
I knew I had a 50/50 chance... In that case-
Changes it to +12-15psi by adding smaller spring.
Again this is a rough guesstimate of what the spring pre-load is worth in top port air pressure.
That's about what I'm looking for. Thanks Lance.

RonA
__________________
Support Global Warming. Polar Bears are tired of freezing their butts off.
 
Old 07-22-2013, 11:47 AM   #7
diesel_importer
 
diesel_importer's Avatar

Name: diesel_importer
Title: Brett D.
Status: Not Here
Join Date: Oct 2007
Location: Fairfield,TX
Member`s Gallery
Posts: 4,394
When applying psi to top port only, should I plug or leave open bottom port?
__________________
01 QCSB 2WD AUTO: Redline/Smarty, Monster VP, 6x.013, S467 FMW, Goerend Trans, Caltracs.
Fuel only - 11.85 @ 114, 50 Shot - 11.58 @ 116 w/ 1.69 60'
FREESTONE DIESEL
 
Old 07-25-2013, 04:33 PM   #8
diesel_importer
 
diesel_importer's Avatar

Name: diesel_importer
Title: Brett D.
Status: Not Here
Join Date: Oct 2007
Location: Fairfield,TX
Member`s Gallery
Posts: 4,394
Bump. Anybody?
__________________
01 QCSB 2WD AUTO: Redline/Smarty, Monster VP, 6x.013, S467 FMW, Goerend Trans, Caltracs.
Fuel only - 11.85 @ 114, 50 Shot - 11.58 @ 116 w/ 1.69 60'
FREESTONE DIESEL
 
Old 07-25-2013, 04:42 PM   #9
TheNatural31
 
TheNatural31's Avatar

Name: TheNatural31
Title: Missing pieces.....
Status: Not Here
Join Date: Aug 2008
Location: Texas
Member`s Gallery
Posts: 848
Quote:
Originally Posted by diesel_importer View Post
Bump. Anybody?
Let it vent to atmosphere.
__________________
Ronnie
(830).201.4063

Visit us @ Altered Diesel Wurks

Mumau Diesel
 
Old 07-25-2013, 05:35 PM   #10
diesel_importer
 
diesel_importer's Avatar

Name: diesel_importer
Title: Brett D.
Status: Not Here
Join Date: Oct 2007
Location: Fairfield,TX
Member`s Gallery
Posts: 4,394
That's what I thought. Thanks.
__________________
01 QCSB 2WD AUTO: Redline/Smarty, Monster VP, 6x.013, S467 FMW, Goerend Trans, Caltracs.
Fuel only - 11.85 @ 114, 50 Shot - 11.58 @ 116 w/ 1.69 60'
FREESTONE DIESEL
 
Old 01-04-2014, 01:05 PM   #11
Extended Power
 
Extended Power's Avatar

Name: Extended Power
Title: Too Much Time
Status: Not Here
Join Date: May 2006
Member`s Gallery
Posts: 2,975
On the bench, if you hook up a regulated supply to the bottom port, as soon as the valve lifts, I hear air passing through the valve guide. (Clearance of course.)
If I am using a boost controller, would I not plug the bottom port, as the control is done through the top port only. (Solenoid energized to keep gate closed, another solenoid to bleed pressure off the top, opening the gate...nothing on bottom port at all.)

Leaving it open just allows the soot to pass through the bottom port, an just gets everything dirty.
__________________
2003 Ford KingRanch F-350 4x4
793HP fuel only
12.2 @ 113.06mph


If It Ain't Broke...Fix It Until It Is!!!
 
Old 01-04-2014, 07:59 PM   #12
Hurley
 
Hurley's Avatar

Name: Hurley
Title: BLAKLUNG
Status: Not Here
Join Date: Apr 2008
Location: Statesville, NC
Member`s Gallery
Posts: 3,651
Quote:
Originally Posted by TheNatural31 View Post
Let it vent to atmosphere.
fwiw, this was the best control I had as well.
__________________
THIS
IS
COMPD.

95 2500 RCSB 2wd back-halfed and 4-linked
5x14/7mm +100cc/4k/11-blade billet 63/68/.91 T4
539/989

03 RCLB 4x4, SSR
 
Old 01-04-2014, 08:24 PM   #13
jgsturbo

Name: jgsturbo
Title: caveman
Status: Not Here
Join Date: Dec 2011
Member`s Gallery
Posts: 457
If you PLUG the lower port the gate will draw air from the guide but then it will be awful slow to return, not good.

I dream of a seal that would actually last but its nto an option in the given situation.

Tighter clearances = a higher jamming risk.
Looking in to some coatings that will keep the soot from sticking.
__________________
Lance Humbert
JGS Precision Turbo Control Products
 
Old 01-04-2014, 08:46 PM   #14
Extended Power
 
Extended Power's Avatar

Name: Extended Power
Title: Too Much Time
Status: Not Here
Join Date: May 2006
Member`s Gallery
Posts: 2,975
Quote:
Originally Posted by jgsturbo View Post
If you PLUG the lower port the gate will draw air from the guide but then it will be awful slow to return, not good.

I dream of a seal that would actually last but its nto an option in the given situation.

Tighter clearances = a higher jamming risk.
Looking in to some coatings that will keep the soot from sticking.
I'm thinking of running an air system, so no more hot dirty air inside the cylinder. (Yes, I have a filter on the lines now.)

Shouldn't be a slow return using solenoids to pressure up, and vent off the top of the actuator. (Air to close it, and vent it off to open it.)
__________________
2003 Ford KingRanch F-350 4x4
793HP fuel only
12.2 @ 113.06mph


If It Ain't Broke...Fix It Until It Is!!!
 
Closed Thread

Thread Tools

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -5. The time now is 10:22 AM.

 


Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2018, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com