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How is the boring acheaved on 850cc injectors

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Old Jan 19, 2012 | 04:34 AM
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How is the boring acheaved on 850cc injectors

Whats the process is it phisicaly drilled to 1300cc
And does an engineering company need to do it and how much will it cost
Thanks
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Old Jan 19, 2012 | 04:54 AM
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This is not a DIY job. Buy them at 1300cc. If they're used, get them cleaned/tested before installing them.
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Old Jan 19, 2012 | 06:05 AM
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Thanks for the advice i always test even new injectors i had a set of rc 750 for an evo one injector was possibly the worst spray pattern ive ever seen.
I have acess to lathe and piller drills at friends engineering company so i just need to no how the process is done is it bored ? And by how much
And if i mess them up id injectors it is but i wana give it a go
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Old Jan 19, 2012 | 07:16 AM
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Originally Posted by imitek
How is the boring acheaved on 850cc injectors
You buy a set, leave them in your garage, don't get to tune and drive your car; boring achieved

Sorry just had to say it
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Old Jan 19, 2012 | 07:32 AM
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Just use a tire plug reamer!
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Old Jan 19, 2012 | 11:31 AM
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Originally Posted by Alpsta
You buy a set, leave them in your garage, don't get to tune and drive your car; boring achieved

Sorry just had to say it
Lol think im boring in both ways my car has been sat for over a year
I saw a thread on here of a build and got me pumped up again

Yea prodigy smack my bitch up whhhhhhhhhh thats me head banging
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Old Jan 19, 2012 | 11:56 AM
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Originally Posted by Gorilla RE
Just use a tire plug reamer!
U serious ?
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Old Jan 19, 2012 | 02:49 PM
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Originally Posted by imitek
U serious ?
uhh no. You will have to send them off.

-J
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Old Jan 19, 2012 | 03:02 PM
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It a precision thing. I sent mine to RC engineering and I had them bored out from 850's to 1300's
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Old Jan 19, 2012 | 03:22 PM
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Not exactly our injectors, but you'll get the idea:

http://www.youtube.com/watch?v=Dv-xfn2xrIE
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Old Jan 19, 2012 | 04:43 PM
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Originally Posted by imitek
Thanks for the advice i always test even new injectors i had a set of rc 750 for an evo one injector was possibly the worst spray pattern ive ever seen.
I have acess to lathe and piller drills at friends engineering company so i just need to no how the process is done is it bored ? And by how much
And if i mess them up id injectors it is but i wana give it a go
Drills do not hold tight tolerances on size. The orifice of the injector is probably a hardened steel and wouldn't drill anyway.

Even if you could perform the work in that shop, you'd need to spend more on the special tooling than the injectors would cost.

David
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Old Jan 19, 2012 | 11:41 PM
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From: portsmouth
It lookes like its flearing the injector or is it cutting anyways New injectors it is then TakE it the needle hase to be replaced as well then
Your defo right about more expencive than buying a new set of injectors
Thanks for your help guys
And the vid
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Old May 3, 2013 | 10:32 AM
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Anyone have an idea where the best place to send injectors to get bored out is ?
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Old May 3, 2013 | 11:08 AM
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Looks like RC engineering is winning the battle here.
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Old May 3, 2013 | 11:13 AM
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Originally Posted by Tem120
Anyone have an idea where the best place to send injectors to get bored out is ?
WitchHunter Performance - Injector Cleaning & Flow Testing Services (will so some injectors, contact them to find out)
RC Fuel Injection (has been doing RX7 injectors for years)
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Old May 3, 2013 | 01:34 PM
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You don't bore. You buy the right size.
An 850 injector is designed to be an 850 injector. Bottom line. If you bore it, you'll more than like end up with a shitty spray pattern and terrible atomization.
Just buy the right injectors.
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