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max bhp from standard injectors? #1611467
12/11/2017 16:30
12/11/2017 16:30
Joined: Oct 2009
Posts: 268
berkshire england
liam_gill Offline OP
Making a profit
liam_gill  Offline OP
Making a profit

Joined: Oct 2009
Posts: 268
berkshire england
if i uprate the fuel pump and use a 3.8 fuel pressure regulator would i be able to hit 340bhp with the supporting mods i have?
(but using the standard injectors)

Re: max bhp from standard injectors? [Re: liam_gill] #1611468
12/11/2017 17:31
12/11/2017 17:31
Joined: Oct 2008
Posts: 6,783
In the coupe.
magooagain Offline
Club Member 259
magooagain  Offline
Club Member 259
Forum is my life

Joined: Oct 2008
Posts: 6,783
In the coupe.
I would say you may be getting up to the limit the stock injectors can handle.
An upgrade to 440 cc may be wise.



Re: max bhp from standard injectors? [Re: liam_gill] #1611469
12/11/2017 18:25
12/11/2017 18:25
Joined: Feb 2008
Posts: 1,725
London
kj16v Offline
My life on the forum
kj16v  Offline
My life on the forum

Joined: Feb 2008
Posts: 1,725
London
Use Bosch 470cc injectors "Astra VXR" injectors. They work so much better than the green 440cc injectors.

Bosch Part No. 0 280 156 280

Re: max bhp from standard injectors? [Re: liam_gill] #1611477
13/11/2017 05:20
13/11/2017 05:20
Joined: Dec 2005
Posts: 17,366
Staffordshire
Nigel Offline
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Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,366
Staffordshire
What is the spray pattern on the VXR injectors?


[Linked Image]
Re: max bhp from standard injectors? [Re: liam_gill] #1611502
13/11/2017 20:20
13/11/2017 20:20
Joined: Oct 2009
Posts: 268
berkshire england
liam_gill Offline OP
Making a profit
liam_gill  Offline OP
Making a profit

Joined: Oct 2009
Posts: 268
berkshire england
hmm interesting may have to look into sourcing some 2nd hand injectors if possible. ( from 2 vehicles!)

Re: max bhp from standard injectors? [Re: Nigel] #1611524
14/11/2017 12:38
14/11/2017 12:38
Joined: Feb 2008
Posts: 1,725
London
kj16v Offline
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kj16v  Offline
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London
Originally Posted By Nigel
What is the spray pattern on the VXR injectors?


2 cones, 20° spread, according to one source.

Re: max bhp from standard injectors? [Re: kj16v] #1611531
14/11/2017 14:45
14/11/2017 14:45
Joined: Dec 2005
Posts: 17,366
Staffordshire
Nigel Offline
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Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,366
Staffordshire
Originally Posted By kj16v
Originally Posted By Nigel
What is the spray pattern on the VXR injectors?


2 cones, 20° spread, according to one source.


Any idea of the gap between the cones?


[Linked Image]

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