Vx220 supercharged

chill

chill said:
There been some talk about injectors on other threads but I thought I would share my findings from my build over the last few years
Standard turbo injectors ran out of steam (80% duty cycle) @ 6000 rpm running with 3.1 pulley on M62 at 250hp standard fuel pressure So I moved to VXR blue injectors which were fine with my setup @ stage 2

After saab engine was fitted stage 3
The VxR injectors ran out of steam at 285 hp standard fuel pressure @ 6000 rpm running with 3.1 pulley on M62 at 250hp

I am currently on 630cc siemens injectors which were fine at 305hp hp 3.1 M62 setup 60 ish % duty cycle standard fuel pressure with saab engine

I am now moving to a Harrop Setup and hoping the injectors will be fine with 3.1 pulley again

I'm slightly confused there
How can your fuel pressure in rail be higher with a standard FPR
It might something in not understanding so would you explain please

evocarlos

chill said:
There been some talk about injectors on other threads but I thought I would share my findings from my build over the last few years
Standard turbo injectors ran out of steam (80% duty cycle) @ 6000 rpm running with 3.1 pulley on M62 at 250hp standard fuel pressure So I moved to VXR blue injectors which were fine with my setup @ stage 2

After saab engine was fitted stage 3
The VxR injectors ran out of steam at 285 hp standard fuel pressure @ 6000 rpm running with 3.1 pulley on M62 at 250hp

I am currently on 630cc siemens injectors which were fine at 305hp hp 3.1 M62 setup 60 ish % duty cycle standard fuel pressure with saab engine

I am now moving to a Harrop Setup and hoping the injectors will be fine with 3.1 pulley again

its only during boost that it increases
my fpr is piped to the inlet so it see vacuum at idle (normal 3.0bar)then during boost the pressure on the inlet forces against the spring side of the fpr making it harder for the fuel to push the fpr open giving more fuel pressure most cars with boost have this

chill

chill said:
There been some talk about injectors on other threads but I thought I would share my findings from my build over the last few years
Standard turbo injectors ran out of steam (80% duty cycle) @ 6000 rpm running with 3.1 pulley on M62 at 250hp standard fuel pressure So I moved to VXR blue injectors which were fine with my setup @ stage 2

After saab engine was fitted stage 3
The VxR injectors ran out of steam at 285 hp standard fuel pressure @ 6000 rpm running with 3.1 pulley on M62 at 250hp

I am currently on 630cc siemens injectors which were fine at 305hp hp 3.1 M62 setup 60 ish % duty cycle standard fuel pressure with saab engine

I am now moving to a Harrop Setup and hoping the injectors will be fine with 3.1 pulley again

Cheers for that I was looking at it wrong
I thought the job of the FPR was to keep fuel pressure the same

chill

Been playing on and off for the last week
New exhaust on

https://www.youtube.com/watch?v=sX7iSQWNhkg

Removed all the intake system off

chill

All clean

chill

https://www.youtube.com/watch?v=-0acus6lQxA

Harrop is on and running

Finger over microphone

chill

I've had a delivery from the states today for my Harrop

3.1 pulley despite having a 2.9 &2.8 pulleys my target is going to be 350hp with the less boost the 3.1 pulley gives me which I'm hoping will be able stretch the walbro 255pump 350hp
Time will tell and time is getting very close now

chill

The end is getting close

chill

End of the month car will be going on the road

New fuel lines today

chill

https://www.youtube.com/watch?v=8VEsU_Z0Y-k

chill

Base map power lol

chill

Bit of work on the mapping today

https://www.youtube.com/watch?v=v-vd8pfojV8

chill

Not perfect yet but it's getting there

chill

Changing plugs for some closer gapped plugs
Don't think there is a issue

Here is the original ones

evocarlos

chill said:
Changing plugs for some closer gapped plugs
Don't think there is a issue

Here is the original ones

did you not consider regapping them yourself ?
ive gone for a step colder on the new build

chill

chill said:
Changing plugs for some closer gapped plugs
Don't think there is a issue

Here is the original ones

Yes,
But decided to swap them out as they had been in 18 months
Also went for NGK BKR7E
PFR6D

evocarlos

chill said:
Changing plugs for some closer gapped plugs
Don't think there is a issue

Here is the original ones

i personally prefer the iridium
one step colder
ngk - bkr7e (4644) "copper"
ngk - bkr7eix (2667) "iridium"

two steps colder
ngk - bpr8es (3923) "copper"
ngk - bkr8eix (2668) "iridium"

three steps colder
ngk - bpr9es (7788) "copper"
ngk - bkr9eix (2669) "iridium"

chill

chill said:
Changing plugs for some closer gapped plugs
Don't think there is a issue

Here is the original ones

Cheers for info Carlos

evocarlos

chill said:
Changing plugs for some closer gapped plugs
Don't think there is a issue

Here is the original ones

no problem 🙂 i have a pic of the info but cant upload it here

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