M K

iTrader: (9)

going to be running external wastegate on the new cosworth engine but there are so many sizes 36/38/44/46mm etc none state what power it's suitable for so how do you work it out? I doubt il be running over 550bhp max.

Thanks marc

Big Will_

Depending on space restrictions, go for the biggest you can get in there! The more exhaust gas you can flow away, the more accurate your boost control can be!

Personally depending on the actual end power figure you go for, i'd look at the 38mm as the minimum and go for the 44mm if you're under 550bhp.

J1mbo

iTrader: (1)

44 is what we mainly use, from 500-700 i cant remember what was on andrews 800 though

fatmike

iTrader: (4)

44 is the usuall alrounder

M K

iTrader: (9)

Ok cheers guys,
going to order a 44mm tial v44 v band external wastegate but what pressure spring will I need for 500+ on a GT3076R?
0.5,0.6,0.7,0.8,0.9 bar

thanks marc,

ps does £309 sound a good price from a genuine uk supplier?

Mark Shead

I normaly run a 1.2 bar spring set up, Some boost control set up works better than others and this can let you run a softer spring.

Mark

M K

iTrader: (9)

I will most likely be running air Injectors,

The website does not specify a 1.2 bar spring only 0.9 bar so maybe il have
to ring them for that if I want to go that hard,

thanks marc

andrewg

sure mine was 44 too

Mark Shead

You add another spring to raise it to that, there are only about £15 a spring so it may be worth getting a couple of diff ones.

Mark

fatmike

iTrader: (4)

i have the standard spring that the wategate came with an set it up on my gizmo boost controler hits 30psi perfect

M K

iTrader: (9)

Who is cheapest for a v44 then as site I tried using didn't work which was pp-tuning.com they were £309 delivered

thanks marc

J1mbo

iTrader: (1)

try cr turbos

zetaboostboy522bhp

www.looseboltsmotorsport.com , very good and quick delivery , plus he puts a reduced invoice in so you dont hardly pay any import tax
tial 44mm is £250 all in which is a bargain

cheers paul

turnover

id imagine you will have to run best part of 30 to 35 psi on that turbo setup to achieve 550 hp,so you will need the right spring to control the boost properly,good project ,will have a proper nose when its finished as no dobt you will be at one of the brunters thrashes next year

M K

iTrader: (9)

link dont work paul and i bloody deleted your pm from before with that website in,

D'oh

M K

iTrader: (9)

including shipping it comes out at £294.63 and depending on import duty its not going to work out much cheaper and will take longer etc,

reyland does them for £361 delivered so think for a uk supplier il buy from the uk