GraphiteGray

iTrader: (1)

Hi all got a couple of questions so thought i'd save some space by putting them in one place, what a nice person eh

Right first off what are the advantages of an oil and water cooled Turbo (S2) over just an oil cooled turbo (S1) and would it be worthwhile to connect up the water cooling system for example if you had an S1 and wanted to have oil and water cooled like the S2?

Secondly Newman Cams, seems everyone keeps recommending these so thinking of getting one, how does their off the shelf Turbo cam compare to other cams like the Kent CVH34/35 for example? Or do you need to have a cam specced to you engine spec? I see they use solid lifters, how hard are they to adjust and do you need double valve springs to use them?

How many people here are using a Newman Cam on their turbos?

Thanks for looking

P.S. i tried a search for newman cams on here but couldnt find anything, im sure there was a thread on them a while back?

wilky

iTrader: (1)

water cooled turbo's are there to help warm the car quicker
in winter ,that's about it ,if you runing high boost all you going to do is run the car hotter at the end of the day

addiction

never heard such a thing!! the water is to help cool the turbo!!
the S1 used an oil cooled turbo which had a larger oil jacket and the S2 one was oil and watercooled with a smaller oil jacket!
the disadvantage of watercooled one's are higher engine temps!
not had any experence with Newman cam's though!

orion turbo

newman cam are made of a different material so they dont where lik normal cams i have a cvh35 and have driven a newman camed s2 and it feels smoother and more responsive

http://www.newman-cams.com/

wilky

iTrader: (1)

why do you need to cool the turbo .most turbo's were not cooled year's a go and most diesal turbo's are not water cooled .ball bearing turbo's need to be watercooled as they have a restrictor in them and can not use the oil to take the heat out of the shaft .
you are right about having a oil cooler though this will help

addiction

you really think it was to help warm the car up quicker in the winter?! it would also warm it in the summer as well!!!

it wasnt just the S2 that used them as the Cosworth's also used a watercooled turbo as well.
Dont think Ford would have used watercooled turbo's unless they thought they needed too!!
as i said before oil cooled turbo's have larger oil ways to help with the cooling of the turbo aswell as to lubricate the bearings!