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Discussion Starter #1
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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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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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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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
LOL
 

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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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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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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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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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Discussion Starter #10
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-Performance-2-2-2-5-Camshaft-314-cam/233290975266?hash=item365139c822:g:H~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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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-Performance-2-2-2-5-Camshaft-314-cam/233290975266?hash=item365139c822:g:H~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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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.


Thanks
Randy
 

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Discussion Starter #13
That's very interesting feeback Glhs60
What do you do to keep your S60 safe ?

I always re-broke-in the old stuff and used a secret cam lube.
Could you share more ?

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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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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Discussion Starter #16
Thanks Johny,

yes of course pics showing cam lobes differences would be useful but I think (I hope :) I have understood.

So did you use the 314 camshaft with a stock engine or with an engine heavely modded ?
 

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result I posted was an 85 log turbo motor with the MP LM the 314 cam and a 305 fd carb trans - 75 mph and holdin some back going over the top

55 wide open going over top with only the MP LM

I'll add also "performed" while maintaining my own lane on ALL blind corners & hills

I'm lookin in my files for a pic of that part of the hill

maybe this will work

click first vid on the left and kill your sound
https://www.google.com/search?q=twin+rivers+drive+scarborough+on&hl=en-GB&sourceid=gd&rlz=1Q1GGLD_enCA728CA728

the start would once upon a time have been a wide open down hill pull starting with a downshift to 2nd at the beginning.

an approach to a hairpin follows then a blind hump followed by a hard right turn you can't do at anymore than 25 .. in anything
then a straight run to the steel bridge followed by the S bend hill

the bump in the middle of the S on the hill in the video is a level sewer drain grate - the driver got too close..
 

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

Could you share more ?
Starting with the 1968 model year SBC cams started failing at an alarming rate.

Back them, parts were expensive and labor was cheap, compared to today.

Many SBC's, especially 307's smoked after getting a new cam and lifters.

The Engine shop I worked at had many core Engine stripped daily.

Cams, lifters, valves, timing sets, oil pumps were all replaced, company policy.

During the day I assembled shop Engines but at night I built my own SBC's.

The guy who stripped the cores set aside any decent looking SBC stuff for me.

I developed a pretty good judgement on what parts were still serviceable.

I actually checked each lifter, disassembled, and cleaned the good ones.

Same with oil pumps and timing sprockets and occasionally timing chains.

I realized my night Engines had to be reliable, not leak and perform well.

Cam and lifter problems were an ongoing issue and I needed a reliable solution.

I started thinking about trouble free, high load, metal on metal components.

Old fashioned front wheel bearings fit the description and a solution was born

Inexpensive, old fashion wheel bearing grease, what could be simpler!!

All new shop, and night Engines received a little grease on cams and lifters.

Never had a cam / lifter failure after starting this policy.

Around 1997 I bought the MP Super 60 Cam and all related components.

Same grease treatment on the cam and sliders have served me well.

Also, slider heads have cam cap, oil squirt passages. that later heads do not.

I suspect they help with cam life and a non squirt cam cap may not oil a slider.

I ran rollers on a slider cam successfully but the combo would be less powerful.

The roller cam needs a very wide lobe to equal a slider cam/follower.

My policy is to have a perfectly running stock Engine combo before experimenting.

A slider cam needs slider followers to maintain its level of performance.

A roller cam with slider followers is always in the back of my mind!!

Its late, I hope you can follow!!

Thanks
Randy
 
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