Torque Converter Talk
Postmaster
Joined: Mar 2013
Posts: 3,066
Likes: 7
From: Over There
All you need is a dizzy with an adjustable vacuum advance, a 10L/12L slot, and starts advancing between say 1000-1100 RPM. Should be able to get it to idle right about 900-1000 in park 800-900 in gear.
Plug vacuum advance to manifold vacuum, adjust the vacuum can, timing, and carb so that it idles in gear with the vacuum advance barely full on, with timing where it makes peak vacuum(mid-high 20s), and at 800-900 RPM. When put in park, vacuum goes up and should still be under 1000 RPM so timing shouldn't change, and at idle that low the stock converter should only drag a little so the RPM will only climb a little. When shut off vacuum goes to 0, so starting timing will be in low teens so easy to start.
EDIT biggest variation here that is hard to control for is the amount of vacuum advance, it's very hard to limit it on a DSII dizzy.
Plug vacuum advance to manifold vacuum, adjust the vacuum can, timing, and carb so that it idles in gear with the vacuum advance barely full on, with timing where it makes peak vacuum(mid-high 20s), and at 800-900 RPM. When put in park, vacuum goes up and should still be under 1000 RPM so timing shouldn't change, and at idle that low the stock converter should only drag a little so the RPM will only climb a little. When shut off vacuum goes to 0, so starting timing will be in low teens so easy to start.
EDIT biggest variation here that is hard to control for is the amount of vacuum advance, it's very hard to limit it on a DSII dizzy.
Thread Starter
|
Postmaster
Joined: Nov 2009
Posts: 4,575
Likes: 5
From: Broken Arrow , OK
So anyways, before the wifey/office IT person pulled the plug on my web service in order to install the router and server I was going to say" IMO the cam isnt that radical because Gary and I put a degree wheel on it and there wasnt a need for an adjustable timing set". Meaning that the straight up position on the double roller set was just fine.
I was going to call ACC and get their 0.02. I am sure they will try to sell me a TC, but just curios as to what they say. I was eyeing a Night Stalker that is supposed to stall around 1800 rpm. Seemed like it was around $200-$250.
Now you guys have me looking at for an adjustable vacuum advance unit for it.
I was going to call ACC and get their 0.02. I am sure they will try to sell me a TC, but just curios as to what they say. I was eyeing a Night Stalker that is supposed to stall around 1800 rpm. Seemed like it was around $200-$250.
Now you guys have me looking at for an adjustable vacuum advance unit for it.
Thread Starter
|
Postmaster
Joined: Nov 2009
Posts: 4,575
Likes: 5
From: Broken Arrow , OK
Is this Standard motor products part the right one???
http://www.summitracing.com/search/m...cuum%20advance
http://www.summitracing.com/search/m...cuum%20advance
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Postmaster
Joined: Mar 2013
Posts: 3,066
Likes: 7
From: Over There
You may have one already and not know it, many aftermarket distributors come with an adjustable advance and they don't look any different. Find a 3/32 allen wrench, stick it in the hose nipple, and see if it grabs something.
Logistics Pro
Joined: Sep 2011
Posts: 4,491
Likes: 26
From: Algona,WA
I have a stock Motorcraft vacuum advance and it's adjustable. Says Motorcraft right on it. That's another thing to look out for.
Postmaster
Joined: Mar 2013
Posts: 3,066
Likes: 7
From: Over There
Is this Standard motor products part the right one???
http://www.summitracing.com/search/m...cuum%20advance
http://www.summitracing.com/search/m...cuum%20advance
Thread Starter
|
Postmaster
Joined: Nov 2009
Posts: 4,575
Likes: 5
From: Broken Arrow , OK
I am hoping to get on the DSII swap this weekend, but I am whooped right now. I have been doing a 3 person repair job by myself all week because I have too much stuff going at one time.
Hopefully a good nights sleep tomorrow night will put in a better mood. However, I will be doing something to the Bronco this weekend.
Hopefully a good nights sleep tomorrow night will put in a better mood. However, I will be doing something to the Bronco this weekend.
Posting Guru
Joined: Oct 2010
Posts: 1,199
Likes: 1
From: Missouri
Back when I was trying to tune the timing on my truck, I contacted Crane before dropping money on a new advance unit.. since my old Motorcraft one was adjustable. Their unit still adds 24 degrees of advance.
Postmaster
Joined: Mar 2013
Posts: 3,066
Likes: 7
From: Over There
This in my mind is the single hardest part of tuning vacuum advance. For a use like I suggest for Bruno 24 is too much and it's a very hard mod to make an adjustable limiter in a DSII unlike a GM dizzy. We need a list of available vacuum advance canisters and how much they advance, but I have yet to find one. To me this is the only real advantage to aftermarket distributors like MSD, you can get a Ford dizzy with GM style advance but Ford pickup and Ford big cap.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
I just turned the spring up to where it could not pull in all 24* at idle.
This is what the instructions tell you to do.
http://www.jegs.com/InstallationInst...70-99607-1.pdf
This is what the instructions tell you to do.
http://www.jegs.com/InstallationInst...70-99607-1.pdf