Fiecos Dan

Following my other thread about Newman's cams.


As any one used a std or after market solid lifter RS 1600i cam set up on a rst?


Any problems with Piper or Kent solid lifter cam profiles?

Rick

only problem is they don't do a profile for a turbo set up.

Fiecos Dan

But a injection cam does work fine for the turbo on a hydrolic profile.

Tim

iTrader: (1)

Dan only problems ive seen with solid cams etc is they set them wrong causing lots of wear,karl can help you with this why not ring them as im sure from your posts you have a few questions and i know he will be able to answer them unlike alot of others.
tim
01773836274

Rick

It works yes, but it isn't optimum - there is little or nothing to be gained from using say a std cam in terms of power.

Fiecos Dan

Cheers Tim, but i dont want to waste Karl's time, unless he wants to help out.
do you still run a t2 cam? with good results?


Rick,

i Spoke to Kent's today, and they can do a solid lifter cam to anyspec in 4 days turn around.

They don't use Chilled cast on the cvh cams, they use induction harderend material, as they tried chilled cast, and it didn't work with the cvh followers.

Rick

chilled cast doesn't work with the standard hydraulic followers, i know that - but i don't know why.

Induction hardened is probably the soft stuff, so u will still have the wear problems that the normal ones suffer from.

Newman's solid lifter profiles are chilled, the hydraulic aren't.

Fiecos Dan

He (kent cams) said can they use chilled cast on the solid lifters, and he said no, as the follower is still the same material.


He also said, the only reason he would recommend solid lifters, will be to if its rev'd past 6500rpm most of its life.
And it wont cure the wear issue's.


so that must mean Newmans use a different material for there solid lifters??

Christian and Beccy

iTrader: (14)

IMO Kent and Piper use similar cheap middle/far Eastern manufactured Lifters, which are not good quality and therefore not tough enough to stand Chill-cast cams.

Newman are the only ones that have any idea about CVH cam manufacture, though the can't offer alot in terms of profile advice.

Christian and Beccy

iTrader: (14)

Also, as you stated Dan, Piper and Kent simply strip out a standard (non-genuine low quality) follower. Piper's followers were originally made by Ferriday, but as I understand they bought the design and cheapened it by using shite parts.

Newman make theirs from solid bar and have had several revisions before they got to where they are now. They are still fragile IMO, but are the best of whats available.

Fiecos Dan

Cheers Christian.




What Newman cam would you say will suit my xr2tt best? (daily driver)


fresh std c/r engine, Balanced , arp bolts.
P+F head,
R5 Carb,
stg 1 T3 at moment, but might change to slightly bigger.
2.5" exhaust.



Aiming for good power/torque from 3000 - 6500+ rpm

and around 190 bhp/lbft @ the wheels,

Christian and Beccy

iTrader: (14)

Their off-the-shelf CVH cam. It works really well, though not great for my power.

Rick

Dan, that would make sense then. Std lifters get chewed up by chilled cams. I never suffer lifter wear, just the lobes wear (hydraulic profile)

I rev to 6800 currenlty and a std cam and lifters have no problem at all. The reason for you to change to solid iis from a wear point of view only, as hydraulics will be fine at 6500.

Fiecos Dan

i'm running std xr2 at the moment, but as its a 60k mile cam, it is slightly worn, but only 0.2 mm, which is good for miles/age.

but the valve spings are hindering my rpm at the mo, at 5300 rpm.

What spring's do you run?, on std lifters or anti pump? and yours pull's 6800 in 4th and 5th with big valves?

Tim

iTrader: (1)

Dan i only ran 1 t2 and its was shite with a ported head, never had cam or lifter issues 7300 rpm limit on hydro'cs.

Rick

Springs are piper singles i *think* - Karl fitted them few years back. lifters are unbranded from motor factors - cost Ł35quid - i won't pay more because there is no guarantee of quality. Yes it pulls to 6800 no problem, i haven't mapped it higher - waiting for some bigger injectors and then can up the rev limit - so i don't know the limit of the valve train setup yet. I use a std cam as it's cheap and works pretty well, i intend to try a newman one now i know they seem to last.

60k and 0.2mm is incredible - although I've seen it before. I think the cam and follwers were just better quality in the past. I had a Kent CVH 35 which i had Karl inspect and it was as new after 20k - that was 5 years ago - you never hear of that anymore, mates 35 lasted 100miles. I left that cam in the cellar and it rotted

I would keep the cam you have, as it's a proven rare good one. Look at the turbo/head if you want more power. Other than that, i think it's a newman one.

Tim - how are your roller rockers - do you think they help reduce wear?

Rick.

Fiecos Dan

Tim,

sorry
i thought i remember you saying you run a piper hydrolic with good results.
So what are you running?


Rick,

The cam i'm running is a std xr2 item (ford)

I've had a CVH 35 cam last 20k+ before, and wear to be minimal. (3years ago)



i wont be changing the head, and the turbo might be upgraded, as you said on other 't3' post.


But cam (or at least springs, to aid it rev past 5300rpm)is next after the ign system.