vts cylinder head

[cnewcombe]

hi, i bought a big valve head for my vts and am putting pt50k kent cams and vernier pulleys on it. i was wondering if it was best to get it skimmed and pressure tested before i put it on. ????

[VTR-120BHP]

if then head is new then no i wouldn worry about getting it skimmed, but if its second hand it would pay to get it skimmed :)

[AlexB]

jp4 head?
might be worth it just to check its all good before it goes in

[cnewcombe]

ok, is it not worth doing to raise compression? rather than peace of mind

[VTR-120BHP]

there wont be bugger all clearance between your valves and your pistons if you skim it to much.... it will be close as it is with thous cams.

[cnewcombe]

ok thanks,

[Toad]

About the camshafts... A waste of time IMO. Go for some 51's, or Catcam 708s or Newman's PH3's. PT50's will be hardly worth the bother.

[Ryan]

as toad said pt 50s are a mild and (pants cam)

Re head skimming im not a fan, remeber the more you keep skimiming off the more chance of having the head written off if you have a HG failure and warping of the face

[Ryan]

you also dont need vernier pulleys as std vts ones are adjustable

[r_i_c_h_1]

as toad said pt 50s are a mild and (pants cam)

Re head skimming im not a fan, remeber the more you keep skimiming off the more chance of having the head written off if you have a HG failure and warping of the face

Skimming doesn't cause gasket failure or warping, don't know who told you that!

[VTR-120BHP]

Skimming doesn't cause gasket failure or warping, don't know who told you that!

what he's saying is, if you skim the head to lower compression if your headgasket did go you wouldn have enough metal on the head to skim of to correct the warp. hope it makes more sence :)

[Toad]

what he's saying is, if you skim the head to lower compression if your headgasket did go you wouldn have enough metal on the head to skim of to correct the warp. hope it makes more sence :)

Should be "raise" ;)

[VTR-120BHP]

[QUOTE=Toad;2902516]Should be "raise" ;)

:P

[Toad]

Ha! Since you were in a correcting mood, I thought I'd give you a dose of your own medicine. :D

[VTR-120BHP]

Ha! Since you were in a correcting mood, I thought I'd give you a dose of your own medicine. :D

cheers for that one old bean! lol..... i was only trying to make it clearer for him :D

[Toad]

I know mate. :) It was good that you did, as I think he definitely got Ryan's comment confused. Good stuff. :A:

[Ryan]

Skimming doesn't cause gasket failure or warping, don't know who told you that!

perhaps you should take reading lessons before trying to correct me again ;)

[craigie460]

Whats the best cams to put in my VTS?

[Ryan]

Whats the best cams to put in my VTS?

depends on the budget you have and how far you want to take the engine.

there is no 'best' set of camshafts for all

[williamsvts]

there wont be bugger all clearance between your valves and your pistons if you skim it to much.... it will be close as it is with thous cams.

he'll have over 2mm clearance with those cams imo, they are very mild so will prob be near standard which has 3.5mm, lots of clearance.

[rushy_23]

Few questions in relation to items mentioned a n00b in this thread:

I know that the standard pulleys are adjustable, but isnt there an advantage of a lighter
weight adjustable pulley? Or is it a waste of time bothering?

Also, if you ever needed your head skimming due to it being warped. Your saying that having
it skimmed may mask the issue but mask it worse later one?!


Im so uneducated with regards to cars man. Cheers Ry bab.

[williamsvts]

nah, what he means is, if you skim too much off your head in the 1st place. then at a later date if your HG goes and the head warps, there wont be enough material left on to repair it.

[rushy_23]

Ah right I see. So in that case a brand new head is needed.

[williamsvts]

yes, but i doubt you would skim a few mm off at any one time.

[leeroybrown]

Gonna buy you a Haynes manual for Xmas Rushy..

[rushy_23]

^^
LOL - theres no hope mate I just generally suck with cars mate.

[Ryan]

rushy, standards being adjustable for cam timing is all you need. The only reason to upgrade in 99% of applications is due to the original pulleys not having the ability to adjust the cam timing with (8vs for example)

Re the head, as williams has said. The head doesnt have an infinate amount of material on it, so if it gets skimmed for no reason there is a higher chance in the head being written off if it gets warped through *for instance HG failure* as there is not the material there anymore that could potentially be removed to have a perfect head face.

make sense?

[coolj522]

ive got a set of cat cams 708's for sale atm... they are bout the wildest you can run without throttle bodies etc... ask anyone thay are perfect for standard internals and make god power aswell.. pm me if you would like a price... they have only covered approx 5000 miles....

cheers

[rushy_23]

rushy, standards being adjustable for cam timing is all you need. The only reason to upgrade in 99% of applications is due to the original pulleys not having the ability to adjust the cam timing with (8vs for example)

Re the head, as williams has said. The head doesnt have an infinate amount of material on it, so if it gets skimmed for no reason there is a higher chance in the head being written off if it gets warped through *for instance HG failure* as there is not the material there anymore that could potentially be removed to have a perfect head face.

make sense?

All pretty self explanatory when you think about out. Cheers man.

[Ryan]

why they allways say, if it aint broke dont fix it.

Its ok to write off a standard head but think if you have had extensive headwork you dont want to be skimming bits off willy nilly and risk a long term loss.