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post #1 of 19 Old 09-16-2019, 01:39 PM Thread Starter
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slider camshaft

Can you use a used camshaft with new sliders or you have to reuse the older sliders (in the correct order) that were used with this camshaft ?
In other words, does an used slider camshaft have a value if it does not come with its sliders ?
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post #2 of 19 Old 09-16-2019, 03:26 PM
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Re: slider camshaft

Not recommended. I would think a slider cam without followers in correct order would be scrap or a paperweight. You could try putting in some new followers and keep a eye on camshaft wear if in a pinch. I wouldn't do it, but I would surmise, have a much better supply of used parts than you do in France.
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post #3 of 19 Old 09-16-2019, 03:57 PM
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Re: slider camshaft

My experience in doing V8 rebuilds is that as you disassemble, you mark which valve lifter came from what bore and put them back that way. Never mix them up and never use old parts with a new cam. Lube lube lube. I am unsure as to what you are intending but as 4 L bodies has said you could end up with scrap if you are not careful.
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post #4 of 19 Old 09-16-2019, 05:42 PM
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Re: slider camshaft

old cam , new followers will work just fine - AS LONG AS the cam lobes are not notched by the followers
with our cars that could be an issue as the cam lobes are wider than the surface on the followers

old cam with matched followers works because the wear patterns match up

mix matched used cam and followers in no particular order will simply grind themselves outta tolerance...

I had a used up cam once so I tryed something just for fun

I pulled the valve cover and got an old bed sheet
I cut a hole about the size of the head in the sheet just short of one end and laid it out on the front of my car .. long part forwards of the head and tucked things in so they wouldn't get tangled up

then I started the car and let it run for about a minute at idle

well , the length of the oil trails on the sheet from each cam lobe told a story and each worn lobe / follower left a trail about a foot longer than the still ok ones

though to depending on your plans .. you can do a lot of wrong things when building a "disposable motor"
aka one you intend to kill in short order

overboost fuel cut is the fastest factory setting...cough choke cough ..

- better than chasin' the rev limiter..
and very definitely faster than a mid to late 90's corvette
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post #5 of 19 Old 09-17-2019, 12:29 AM Thread Starter
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Re: slider camshaft

thanks for your inputs
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post #6 of 19 Old 09-17-2019, 09:36 AM
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Re: slider camshaft

At this point in time, why would you want to use a slider cam at all?

Far better putting your efforts into a roller on any application, whether stock 88 turbo or TBI profile or A/M vendor grind.
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post #7 of 19 Old 09-17-2019, 10:25 AM
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Re: slider camshaft

Not exactly sure but we may not be interpreting the question correctly.
(If I am wrong than Please disregard this)

If I remember correctly his vehicle was a 90 VNT and is now a 2.5L Turbo which already has a roller cam.

His question may be weather or not he should/can use the old Roller Rocker Arms with a New Cam.
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post #8 of 19 Old 09-17-2019, 11:09 AM
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Re: slider camshaft

Quote:
Originally Posted by NAJ View Post
Not exactly sure but we may not be interpreting the question correctly.
(If I am wrong than Please disregard this)

If I remember correctly his vehicle was a 90 VNT and is now a 2.5L Turbo which already has a roller cam.

His question may be weather or not he should/can use the old Roller Rocker Arms with a New Cam.
Title clearly says "slider" camshaft. Assuming a moderator knows the difference between a roller and a slider...
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post #9 of 19 Old 09-17-2019, 11:54 AM
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Re: slider camshaft

Slider camshaft is used with slider rockers only.
Roller camshaft is used with roller rockers only.
High performance (S60) slider camshaft have stupid short life due to high wear.
Most if not all slider camshaft are outdated and longer lasting roller camshaft/rockers can be found easily and pretty cheaply.
I'm all for ditching the slider stuff and using only the roller camshaft and rockers.
Camshaft is the LAST piece when you're modifying the car, putting a high lift/high duration camshaft can actually lower the engine HP output.


Somebody used a slider camshaft with roller rockers. Notice the lack of rockers and lifters damage. I also saw a car with slider camshaft with roller rockers when the rocker dented all the lobes, I didn't have a cell phone camera at the time.


S60 cam with lobe wear.
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post #10 of 19 Old 09-17-2019, 02:41 PM Thread Starter
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Re: slider camshaft

I was referring to a slider (not roller) camshaft.

This question came to my mind when I saw an add on eBay from one of our vendors selling an used MP 314 camshaft with new lifters and from memory I knew that you have to reuse the old lifters. But it is written that the cam has less than 500 miles, that may explain why.

https://www.ebay.com/itm/Mopar-Perfo...0AAOSwfhlb22kP

BTW, the S60 camshaft, despite its disadvantages (at least for longevity), used with the other S60 parts, is the recipe for 300HP for the dummies. Mopar worked a lot to find the best suited camshaft.

IIRC longevity can be increased by using oil for old cars (zinc ?)
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post #11 of 19 Old 09-17-2019, 06:25 PM
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Re: slider camshaft

Quote:
Originally Posted by nvysion View Post
I was referring to a slider (not roller) camshaft.

This question came to my mind when I saw an add on eBay from one of our vendors selling an used MP 314 camshaft with new lifters and from memory I knew that you have to reuse the old lifters. But it is written that the cam has less than 500 miles, that may explain why.

https://www.ebay.com/itm/Mopar-Perfo...0AAOSwfhlb22kP

BTW, the S60 camshaft, despite its disadvantages (at least for longevity), used with the other S60 parts, is the recipe for 300HP for the dummies. Mopar worked a lot to find the best suited camshaft.

IIRC longevity can be increased by using oil for old cars (zinc ?)
IMO, you would have had to bump your head pretty hard to buy a used slider cam esp. without followers for $249. That's crazy talk in my book. PT Barnum quotation applies here.
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post #12 of 19 Old 09-17-2019, 08:24 PM
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Re: slider camshaft

I've been mixing SBC V8 cams and lifters since the 1960's and have never had a failure.

Naturally, not worn out junk but stuff in reasonable condition.

I always re-broke-in the old stuff and used a secret cam lube.

As to our Engines, I've run rollers on slider cams as an experiment with no problems.

Cam timing needed adjustment but only normal wear after a year.

I know some have had issues with S60 cams but mine is still fine after 20 yrs.

Some times other things might be involved: EG sliders in a roller head.

I'm not recommending anyone do anything just reporting my findings.

Personally, I'm not convinced rollers are any better in our Engines.

Some exotic and motorcycle Engines still use sliders.

I like to experiment just to learn for myself, others may have had different experiences.

Recently I added a Salsa jar to my old 2.7 Sebring to save $ on ATF.

I successfully made a Posi for 4 pinion diffs but another guy ground his all up.

Mixing oils is considered bad so I continue to mix my own blends.

I don't do things haphazardly, I put some thought into it beforehand.

Not complaining or criticizing, just practicing typing and upping my post count.

Its been a year since my stroke and typing can be challenging.


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post #13 of 19 Old 09-18-2019, 06:44 AM Thread Starter
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Re: slider camshaft

That's very interesting feeback Glhs60
What do you do to keep your S60 safe ?

Quote:
Originally Posted by Glhs60 View Post
I always re-broke-in the old stuff and used a secret cam lube.
Could you share more ?

Quote:
Originally Posted by Glhs60 View Post
As to our Engines, I've run rollers on slider cams as an experiment with no problems.
So like Harry wrote, that can be done

How can I recognize a slider camshaft from a roller by looking at it ?
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post #14 of 19 Old 09-18-2019, 08:13 AM
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Re: slider camshaft

roller cams are "fatter" at the approach to the tip of the cam lobe

fatter ot "rounder

the lobe of a slider cam is pointy -er if you will
hard to explain without pics side by side

as for the 314 cam
first question
do you have lots of really steep long hills to blast up?

'cause that cam LOVES a workload

and I've used one in every motor but my first
cam wore out in the second motor and the 314 cam & parts was a fraction of the cost of the original parts at the same dodge dealer so I went with it

L body 2.2 - can't say I noted much difference on flat areas but holey BLEEP does it ever pick up on a nasty hill

I live on the very edge of suburbian toronto .. and the world's largest "park" right across the street
lets just call it a nurburgring simulator and be done with elaboration. i said to be VERY naughty...

anyways the hill in front of my house was "the hill"

like running up the side of a 15-20 story tall building - with am S bend halfway up

you cannot cone out of the S at more than 25 mph

top of the hill turns to the left yo you have to mind going straight over will land you in the ditch

so , stock cam , turbo 2.2 would go over the top at 55 flat out holding nothing back

same hill , same car with 314 cam
car goes over the top at 75 mph..and I'm back peddling going over the top so I don't run off the road
it would have done 80 for sure and might even be able to go over the top at 85 - IF the road allowed it

and the hill is steep enough you can't back down it safely as your mass will overpower your brakes reversing down and backwards U turns at the halfway point MIGHT roll your car over

it may not be an engine dyno is some shop somewhere but you really can't compare to the real world conditions till you get it out there

sorry not my vid .. not my music

and figure to start , a wide open blast down the first hill

wide wide open...
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post #15 of 19 Old 09-18-2019, 08:16 AM
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Re: slider camshaft

well that don't work once linked .. arugh
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