what n75

[__B3NNY__]

I dont think there is alot of dfference to be honest there both aggressive valves, there was a thread about somwhere which exactly explained what was done to make it a 'race' valve.

 

[fourtwofive]

cool thanks mate hope this valve works my n75 is really playing up.

 

[s1l3nc3r]

Has noone worked on a way to possibly bypass he N75 yet...

Will it not work if you leave it connected electricly to keep the ecu happy

but bypass the hoses through a mbc or somthing..??

 

[__B3NNY__]

EBC or MBC will bypass the N75.

 

[s1l3nc3r]

May look into it then. should sort out the problems and the trial and error of what N75 to get or try.

In theory you should just be able to set it just on the limit of limp mode. and all should run fine...

 

[tarzan]

May look into it then. should sort out the problems and the trial and error of what N75 to get or try.

In theory you should just be able to set it just on the limit of limp mode. and all should run fine...

this is mine with hallamann boostcontroler.
as you see one line from intercooler pipe to the boostcontoler.And from the boostcontroler to the wastegate.And the n75 still site int the tip

 

[fourtwofive]

i like that setup does it work well mate?

 

[tarzan]

i like that setup does it work well mate?

works very good for me faster spool and hold the boost better.and i like that i can turn the boost down.but i`m thinking to change to a 2 stage boostcontroler with switch so i can have normal boost turn the switch and then get full boost
like this one

http://cgi.ebay.com/ebaymotors/TurboXS-High-Performance-Dual-Stage-Boost-Controller_W0QQcmdZViewItemQQhashZitem2ea89c29a6QQitemZ200397302182QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

 

[Robbie C]

I always thought the ECS valve was an H valve with the part number scrubbed off...

 

[Cupra20]

Thats how mine is i reckon got no numbers on it or an ecs sticker

 

[Mat]

I've been advised my a member of staff from a tuning company (sponsers on here, mentioning no names), that a "race" valve, or anything other than standard would be a "waste of time". Reasoning behind it was that when it comes to being mapped in the future (hybrid or BT), then the "mapping company" will either map around the valve, or tell me to remove it....

So therefore, those running J valves, ECS etc (anything other than standard), is the uprated N75 actually doing anything extra than what the standard valve would since youhad it mapped? Something worth thinking about, and makes a bit of sense to me.

 

[fourtwofive]

how do they map around it i thought becuase it caused more boost having a J Valve i thought they would map the requested boost to reach the peak that the n75 puts out. just sounds strange

 

[Mat]

why i have it in my mind is as follows

let's say the car as standard runs 5psi (easy, round numbers), and you want a map to boost 25psi

With the standard valve, would the map not just request an "extra" 20psi?

Now say you have a J Valve which gives extra 3psi.

Would the map just not request an "extra" 17psi

Same boost regardless of which valve, just the map is requesting different........

I may be TOTALLY wrong about that tho LMAO

 

[fourtwofive]

yer i can see your point. but the J valve gives a more agressive boost and holds the boost for longer so why not have one. and map it in if that pos.

 

[Mat]

but a map could hold boost longer also.... it's the random issue of limp mode i'm not liking. If that wasn't an issue, i wouldn't think twice about getting one

 

[fourtwofive]

yer im going to fit it tomorow and see if i get overboost im sure i will along with limp mode lol

 

[Robbie C]

The map can request boost - the valve determines what actually happens

The problem with them is that they can also spike above requested levels and lead to overboost, as commonly found with a J valve.

 

[Mat]

exactly

for that reason, may stick with standard! Think I'll trust my mate on this one (despite me initially wanting a J or ECS valve)

 

[black magic 20v]

i put a j version on my cupra last night and dont really notice the different!

 

[Mat]

fancy sending me your standard one to try? I need someone local with a 1.8t to try theirs!