wide ka

im building a 1600 zetec se turbo engine for my kit car, it used to be n/a

i have a fuel pressure reg from before 3 bar with a vac port on the top, will this work ok with a turbo setup or does it need to be different?

next i have a gt2871rs turbo is it worth fitting a pre turbo oil filter inline to it? if so where can i get one from

finally , im not a fan of dump valves, do i need to run one or will the turbo be fine without i dont want to wreck the turbo people opinions seem to vary on this i think

thanks

DazC

iTrader: (1)

I've replied in the quote in red text.

crazycage

i have been running a gt2871 for the last two years now , it has always had a dump valve fitted but never had a pre oil filter, never had any probs with it and its done over 20k now.

wide ka

thank guys,

this is the reg i have, from jenvey i think

DazC

iTrader: (1)

You need to know what rising rate it is...

wide ka

just looked on there site there was nothing as regards the spec ill keep looking,

martysmartie

iTrader: (1)

Im with him, agree on the dump valve as well low boost pressure your probably ok (Which due to your engine choice I am guessing it will be?) You will get alot of replies about the DV as there are alot of opinions.

Basically it dumps the exess boost pressure to the atmosphere (Assuming astmospheric DV) hence the noise and the name when the throttle is closed. You can always run a recirc DV is you wanted to they have no noise.

Without one this is forced back through the turbo, you then end up with the compressor stalling, this is the fluttering noise named "Turbo Chatter" NOT wastegate chatter as the uninitiated call it. This stall's the turbo and puts a strain on the turbo in the process and so shortens the life. So a DV also improve's performance.

Let me know how you get on, I would like to know what these engines are like turbo charged.

Martin

wide ka

thanks martin,

it not a low boost setup will be around 20-22psi, i have a look around for a recirc item maybe a turbosmart one or something like that

martysmartie

iTrader: (1)

Blimey, whats the spec? I have always understood these were only sutiable for low boost, I assume you are using a decomp plate? What is the compression ratio?

Martin

wide ka

i had custom accralite pistons made, with a set of proper rods, the crank has been worked aswell using shawspeed turbo spec cams custom inlet and exhaust too, engine is going in a kit car

there is a build thread on here for it

martysmartie

iTrader: (1)

Oh kwl, will check that out.

Martin

wide ka

if go for a dump valve which ones are quiet in peoples experiences?