|
Re: SOLID ROLLER FOR THE STREET
[Re: dodgeboy11]
#907454
01/19/11 12:36 AM
01/19/11 12:36 AM
|
Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
|
Quote:
The problem that most don't think about with a solid roller street combo is that street engines idle a lot more than race engines. Without the splash lubrication on the rollers, they can and will fail. And it's much more catastrophic than a flat tappet cam that goes flat. Direct oiling to the rollers is the way to go even on a mild solid roller setup. You NEED enough spring pressure to keep the roller on the lobe though. If it bounces it WILL destroy the lifter.
Thats one of the reasons my 493 going in my 63 will have a solid flat tappet cam. I drive my 63 alot on the street and I dont want to worry about any roller lifter problems. Ron
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: 383man]
#907455
01/19/11 09:39 AM
01/19/11 09:39 AM
|
Joined: Jan 2003
Posts: 3,575
The Netherlands
BigBlockMopar
master
|
master
Joined: Jan 2003
Posts: 3,575
The Netherlands
|
Quote:
Quote:
The problem that most don't think about with a solid roller street combo is that street engines idle a lot more than race engines. Without the splash lubrication on the rollers, they can and will fail. And it's much more catastrophic than a flat tappet cam that goes flat. Direct oiling to the rollers is the way to go even on a mild solid roller setup. You NEED enough spring pressure to keep the roller on the lobe though. If it bounces it WILL destroy the lifter.
Thats one of the reasons my 493 going in my 63 will have a solid flat tappet cam. I drive my 63 alot on the street and I dont want to worry about any roller lifter problems. Ron
How do all those millions of modern car-engines survive with their roller cam setups?
Do those engines all have roller-oiling mods or is it all just a bit of scare-tactics and hearsay? Just curious.
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: 383man]
#907456
01/19/11 09:47 AM
01/19/11 09:47 AM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Quote:
The problem that most don't think about with a solid roller street combo is that street engines idle a lot more than race engines. Without the splash lubrication on the rollers, they can and will fail. And it's much more catastrophic than a flat tappet cam that goes flat. Direct oiling to the rollers is the way to go even on a mild solid roller setup. You NEED enough spring pressure to keep the roller on the lobe though. If it bounces it WILL destroy the lifter.
Thats one of the reasons my 493 going in my 63 will have a solid flat tappet cam. I drive my 63 alot on the street and I dont want to worry about any roller lifter problems. Ron
The roller lifters I am using have a oil supply hole
for the roller... no worry here about lack of oil
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: BigBlockMopar]
#907457
01/19/11 10:14 AM
01/19/11 10:14 AM
|
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar
master
|
master
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
|
Quote:
How do all those millions of modern car-engines survive with their roller cam setups?
Do those engines all have roller-oiling mods or is it all just a bit of scare-tactics and hearsay? Just curious.
Apples to bacon cheeseburgers comparison.
A combination of hydraulic roller lifters and mods to the oiling ( oiling the roller for one ) , coupled with WAY tamer grinds let them work like an OEM likes them to.
Roller lifters have been around for a long time , but cost and lack of technology to make them last is what kept car manufacturers out of the game for as long as it did.
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: Cab_Burge]
#907459
01/19/11 02:17 PM
01/19/11 02:17 PM
|
Joined: Jan 2003
Posts: 13,374
Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,374
Marion, South Carolina [><]
|
Both my hemi and wedge have solid rollers and have seen a lot of street miles.
Do NOT use cheap lifters and you'll be fine. I use Isky Red Zones.
Obviously if it's a real aggressive lobe profile that needs a lot of spring pressure, things will have to be looked at more closely.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: an8sec70cuda]
#907460
01/19/11 02:35 PM
01/19/11 02:35 PM
|
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
|
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
|
Quote:
Both my hemi and wedge have solid rollers and have seen a lot of street miles.
Do NOT use cheap lifters and you'll be fine. I use Isky Red Zones.
Obviously if it's a real aggressive lobe profile that needs a lot of spring pressure, things will have to be looked at more closely.
define "aggressive" I'm using a Comp cams 254 int./260 exh (.292/297) 0.582 int./0.588 exh. on a 110* They recommended springs with a seat load of 148 @ 1.900 open load of 456 @ 1.250 coil bind 1.085 and 474lbs.
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: Mr.Yuck]
#907461
01/19/11 02:48 PM
01/19/11 02:48 PM
|
Joined: Jan 2003
Posts: 13,374
Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,374
Marion, South Carolina [><]
|
Quote:
Quote:
Both my hemi and wedge have solid rollers and have seen a lot of street miles.
Do NOT use cheap lifters and you'll be fine. I use Isky Red Zones.
Obviously if it's a real aggressive lobe profile that needs a lot of spring pressure, things will have to be looked at more closely.
define "aggressive" I'm using a Comp cams 254 int./260 exh (.292/297) 0.582 int./0.588 exh. on a 110* They recommended springs with a seat load of 148 @ 1.900 open load of 456 @ 1.250 coil bind 1.085 and 474lbs.
That isn't aggressive. Mine isn't aggressive either...220# on the seat, 600# open.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: an8sec70cuda]
#907462
01/19/11 03:05 PM
01/19/11 03:05 PM
|
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar
master
|
master
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
|
My personal definition of aggressive starts around .700 lift and 270ish at .050 , but lobe profile has more to do with it than actual lift and duration numbers. under .600 and 250 @.050 would be mild in the roller world......solid roller that is. 
Last edited by tubtar; 01/19/11 03:06 PM.
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: Streetwize]
#907464
01/19/11 06:38 PM
01/19/11 06:38 PM
|
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
|
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
|
"Bottom line is if you run your car mainly on week-ends and you pretty much only take it out for occassional cruises or a Test-n-tune, you're probably all right with a street roller." That'd be me except when I go to the track I run 2 classes as I only get out once a month or so...  kids...wife ya know.
|
|
|
Re: SOLID ROLLER FOR THE STREET
[Re: Cab_Burge]
#907466
01/19/11 08:54 PM
01/19/11 08:54 PM
|
Joined: Oct 2007
Posts: 4,209
New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,209
New York
|
keep the rollors in contact with the cam lobes ALL of THE TIME
3 ways to do that:
1. hydraulic
2. set your lash to .001" hot, every day
3. rev kit
Boffin Emeritus
|
|
|
|
|
Aircraft motors have used them forever, the bad thing about race rollers is the spring pressures and RPM. The lifter weren't designed for the load 
Buy a good set of endurance roller lifters and make sure the spring pressures are enough to keep the rollors in contact with the cam lobes ALL of THE TIME, no matter what RPMs 
