Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #46  
Old 04-26-2007, 04:29 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
Yes, they run them toward the top of the plunger travel to limit how far the lifters can pump up. Really any lifter can be run like that. But dont over do it, because it will limit how far the lifter can adjust for normal valvetrain wear, and the plunger would eventually break the clip. Like I said, 3/4 to 1 turn seems to be the magic amount, and some guys directly measure it.

I've heard of Chevy guys only going 1/4 turn though (although their valvetrain is different)... crazy Chevy guys!
Reply With Quote
  #47  
Old 04-26-2007, 04:31 PM
Krewat's Avatar
Krewat Krewat is offline
Super Moderator
 
Join Date: Jul 2002
Location: Long Island USA
Posts: 34,583
Krewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputation
Quote:
Originally Posted by rusty70f100
Lifters also do something called "bleed down" over time. What this does, is oil eventually escapes the lifter through the check ball / disc. This also helps with lifter pump up, as it will allow an over extended lifter to come back down to proper adjustment quicker. I think this is what they do with "anti-pump up" lifters. They just bleed back down quicker. They may also have a lighter internal spring, although I'm not entirely sure on that one.
From memory of 17 years ago, the only difference in the anti-pumpup lifters I used was a groove cut into the seat for the disc check-valve. This would allow oil to get past much faster.

Every once in a while, I'd startup my 390, and it would rap-rap on a few lifters. But that was only after a few months of sitting. It wouldn't do that every day.

They DID make more noise at idle though. But I have/had double valve springs that were like 200lbs or more range for on-seat pressure. My machinst said to make it bullet proof because I had a Triumph TR7 at the time that I loved to take to 7500RPMs

As I remember, the anti-pumpup lifters were also rated for a much higher valve spring pressure than stock lifters. The stockers were at risk for failing under that much pressure. But I'm not sure on that one.

I would suspect, with the bleed-down being FASTER than a regular lifter, that the internal spring would be HEAVIER to try to counteract the bleed-down.

--

Anti-pumpup lifters (as I remember) were intended to keep them from pumping up if you got valve float and then slamming the valve into the piston.

I still have all 16 lifters in my 390 ... if I didn't plan on doing something with it, I'd take a lifter apart and take pics... maybe
__________________
- art k. - Moderator for the Superduty, V10, 6.2L and FE forums
'13 Taurus SHO 3.5L Ecoboost w/Perf Pkg
'01 F250SD SC SB XLT V10 4x4 Volant CAI Hedman headers 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased!
I've been wrong before, I'll be wrong again. Just wait and see. ®
Reply With Quote
  #48  
Old 04-26-2007, 07:49 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
I need to make a correction on how lifters work. The oil comes in the side, and the plunger is in two parts. That way they only need one check valve.
Reply With Quote
  #49  
Old 05-01-2007, 05:33 PM
1975Ford's Avatar
1975Ford 1975Ford is offline
Postmaster
 
Join Date: Jul 2005
Posts: 3,248
1975Ford is gaining momentum as a positive member of FTE.1975Ford is gaining momentum as a positive member of FTE.
Kurt, how's the low end torque and fuel economy for the 343941 crane cam? How's the 343941 cam for towing?
__________________
Word of advice "Take your time, clean and prep part, and don't cut corners"

Reply With Quote
  #50  
Old 05-01-2007, 06:37 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
Low end torque is great; You'd think you're driving a stocker. Fuel economy is also good. One trip on the highway I got 17mpg.

Crane also lists the cam for towing, so it'd probably be good there too.

Good all-around cam. Here's what Crane has to say about it:
"GOOD IDLE, DAILY USAGE AND OFF ROAD, TOWING, PERFORMANCE AND FUEL EFFICIENCY, 2600-3000 CRUISE RPM, 8.75 TO 10.75 COMPRESSION RATIO ADVISED. BASIC RPM 2000-5000"
Reply With Quote
  #51  
Old 05-01-2007, 10:17 PM
Krewat's Avatar
Krewat Krewat is offline
Super Moderator
 
Join Date: Jul 2002
Location: Long Island USA
Posts: 34,583
Krewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputation
The 941 is about the same cam as I had in my 390 - Wolverine Blue Racer, 292/292adv, 230/230@.050", .554/.554" lift. Not exactly, but somewhat close

Advanced 4 degrees, it pulled the 5500lbs '74 highboy around like it was nothing. 2 tons in the bed, still pulled like nothing. Didn't even need 1st (435NP) to move 4000lbs in the bed from a dead stop, and no more than 1500RPMs. w/33" tires and 4.10 gears.

Idle was quite lopey...

Compression was in the 10.5-11 range.

Got 15MPG on a 400 mile trip.
__________________
- art k. - Moderator for the Superduty, V10, 6.2L and FE forums
'13 Taurus SHO 3.5L Ecoboost w/Perf Pkg
'01 F250SD SC SB XLT V10 4x4 Volant CAI Hedman headers 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased!
I've been wrong before, I'll be wrong again. Just wait and see. ®
Reply With Quote
  #52  
Old 05-01-2007, 10:38 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
Your cam looks a bit more wild than the 941.

941 specs:
Adv. duration: 272/284
.050" duration: 216/228
Lift: .533"/.563"

Idle isn't real lopey, but that depends in a huge way on the amount of initial timing advance. If you set it to the 6-8 degrees they came with stock, then yeah, it'll lope. If you give it what it wants, it'll idle like a stocker. Smooth as glass. There is a technique that works quite well, but I guess it's not PC on this board.
Reply With Quote
  #53  
Old 05-01-2007, 11:19 PM
Krewat's Avatar
Krewat Krewat is offline
Super Moderator
 
Join Date: Jul 2002
Location: Long Island USA
Posts: 34,583
Krewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputation
Quote:
Originally Posted by rusty70f100
Your cam looks a bit more wild than the 941.
PC for whom? No censorship or anything else going on here... post away!

Yeah, it was basically the upper limit for hydraulics...

My only point being even lopey sticks can get great low-end with a 390 stroke...
__________________
- art k. - Moderator for the Superduty, V10, 6.2L and FE forums
'13 Taurus SHO 3.5L Ecoboost w/Perf Pkg
'01 F250SD SC SB XLT V10 4x4 Volant CAI Hedman headers 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased!
I've been wrong before, I'll be wrong again. Just wait and see. ®
Reply With Quote
  #54  
Old 05-02-2007, 12:30 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
PC for the "purists" who think it should only be set up the way Ford did it.

If I posted it I can guarantee at least 2 members here would jump all over me for it, and may even leave bad rep. So if anyone really wants to hear how to make it idle smooth with a big cam send me a PM.
Reply With Quote
  #55  
Old 05-02-2007, 12:40 PM
Krewat's Avatar
Krewat Krewat is offline
Super Moderator
 
Join Date: Jul 2002
Location: Long Island USA
Posts: 34,583
Krewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputationKrewat has a superb reputation
Quote:
Originally Posted by rusty70f100
PC for the "purists" who think it should only be set up the way Ford did it.

If I posted it I can guarantee at least 2 members here would jump all over me for it, and may even leave bad rep. So if anyone really wants to hear how to make it idle smooth with a big cam send me a PM.
OH NO! Not the big bad "inverted vacuum advance" ?

AHHHGG!!!!!!!

__________________
- art k. - Moderator for the Superduty, V10, 6.2L and FE forums
'13 Taurus SHO 3.5L Ecoboost w/Perf Pkg
'01 F250SD SC SB XLT V10 4x4 Volant CAI Hedman headers 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased!
I've been wrong before, I'll be wrong again. Just wait and see. ®
Reply With Quote
  #56  
Old 05-02-2007, 03:41 PM
snortf100 snortf100 is offline
Junior User
 
Join Date: Feb 2004
Posts: 53
snortf100 is starting off with a positive reputation.
What are your thoughts on this Cam?
Edelbrock Performer-Plus Camshaft
Ford FE 352-428
Duration Advertised 272° Intake/282° Exhaust
Duration @ .050'' 194° Intake/204° Exhaust
Lift @ Valve .460'' Intake/.480'' Exhaust
Lift @ Cam .265'' Intake/.280'' Exhaust
Lobe Separation Angle 110°
Intake Centerline 105°
Intake Timing @ .050" Open 8° ATDC
Close 22° ABDC
Exhaust Timing @ .050" Open 37° BBDC
Close 13° BTDC
Reply With Quote
  #57  
Old 05-02-2007, 04:05 PM
rusty70f100 rusty70f100 is offline
Post Fiend
 
Join Date: Jan 2003
Location: Iowa
Posts: 8,600
rusty70f100 is gaining momentum as a positive member of FTE.rusty70f100 is gaining momentum as a positive member of FTE.
Crap. Compare the duration figures to the 343941 I mentioned above.
Reply With Quote
  #58  
Old 05-02-2007, 09:58 PM
"Beemer Nut" "Beemer Nut" is offline
Post Fiend
 
Join Date: Dec 2003
Location: "Islander"
Posts: 6,658
"Beemer Nut" has a good reputation on FTE."Beemer Nut" has a good reputation on FTE."Beemer Nut" has a good reputation on FTE.
Almost the same specs as a worn out CJ cam.
270/290, 194/204 @ .050, .481/.490, 46* lap.
__________________
.....=o&o>.....
Reply With Quote
  #59  
Old 05-03-2007, 11:15 AM
snortf100 snortf100 is offline
Junior User
 
Join Date: Feb 2004
Posts: 53
snortf100 is starting off with a positive reputation.
Quote:
Originally Posted by rusty70f100
Your cam looks a bit more wild than the 941.

941 specs:
Adv. duration: 272/284
.050" duration: 216/228
Lift: .533"/.563"

Idle isn't real lopey, but that depends in a huge way on the amount of initial timing advance. If you set it to the 6-8 degrees they came with stock, then yeah, it'll lope. If you give it what it wants, it'll idle like a stocker. Smooth as glass. There is a technique that works quite well, but I guess it's not PC on this board.
If you were buying this cam would you include lifters and new springs from Crane also?
Reply With Quote
  #60  
Old 05-03-2007, 11:42 AM
1975Ford's Avatar
1975Ford 1975Ford is offline
Postmaster
 
Join Date: Jul 2005
Posts: 3,248
1975Ford is gaining momentum as a positive member of FTE.1975Ford is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by dbossman
at survivalmotorsports.com..... He offers a cam that is one notch above the 390GT/428CJ cam. Its 204/214 duration at .050 and 484/510 lift.

I am using one in my 428 with factory style adjustable valvetrain. Its certainly a mild cam, but I really like it. It runs real strong.
SurvivThis is a good cam too.

Yes, go with Crane everything (cam, lifter, springs, retainers, etc..) if you this route, that what I did.

Remember more lift more wear.

JMO, I like to keep the lift at above the 0.500 mark and below the 0.560 mark.

I running the Crane 343902 cam/ lifter setup.
__________________
Word of advice "Take your time, clean and prep part, and don't cut corners"

Reply With Quote
Old 05-03-2007, 11:42 AM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
360 cam/ timing questions cowboyfordlord FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) 8 03-21-2013 11:45 PM
390 Rebuilt mlevario99 FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) 13 02-06-2008 10:35 AM
desktop dyno request 7FORD2 FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) 42 03-11-2007 10:36 PM
Comp cam vs. Crane freejay FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) 15 08-29-2003 10:57 PM
Machining question,cam installation Rat wagon FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) 2 03-17-2003 12:35 PM


Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)

Tags
343901, 343902, 360, 390, big, cam, camshaft, crane, crane343901, duration, factory, fe, ford, lift, stock, towing

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 02:03 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup