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Location:
Ballarat
Registered:
September 2003
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3tgte to 3sgte injector
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Tue, 09 August 2005 09:50
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ok i realise this upgrade wouldve been covered, ive heard it mentioned a few times, i searched under a few things and couldnt find anything, please direct me to a thread if it covers it comprehensively.
what i need to know is: i want to upgrade my injectors at some stage on my 3tgte to help with a bigger turbo and aftermarket ecu. i need to know
are 3tgte injectors an adequate/optimum upgrade?
are they the easiest option?
and what would i need to do in order to fit these injectors, is this a garage job? or one for the pro's and therefore one for my wallet 
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Location:
Terrigal
Registered:
May 2002
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Re: 3tgte to 3sgte injector
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Wed, 10 August 2005 00:24
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Mazda 13B RX7 550cc injectors are the go  they fit straight in.
3sgte injectors (in gen 3 anyway) are side fed so no good for a 3tgte.
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Location:
Pilbara
Registered:
November 2004
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Re: 3tgte to 3sgte injector
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Wed, 10 August 2005 01:29
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7MGTE 450cc injectors are good too.
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Location:
Ballarat
Registered:
September 2003
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Re: 3tgte to 3sgte injector
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Wed, 10 August 2005 03:08
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oh awesome awesome thanks for the replies, thats very helpful, ill forget the 3tgte injectors then.
so the rx7 ones...they fit STRAIGHT in? any modifying necessary at all? they go straight in? haha that sounds like my kinda upgrade if so....what generation rx7 can i use?
also, 7mgte injectors, same as above...any modifying necessary at all? or are they a straight fit too?
what type of results have you guys had with these injectors, thanks for the info boys. its appreciated.
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Location:
Terrigal
Registered:
May 2002
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Re: 3tgte to 3sgte injector
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Wed, 10 August 2005 03:44
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Series 4 or 5 RX7 are the ones to go for.. They usually sell for $200 - $300 for a set of 4.
They do bolt straight in.. But depending on the series you get you may need to change the plugs for them.
Are you running aftermarket ecu? As they are quite a bit larger and I dont know how the factory ecu would go controlling them.
I've ran 22psi boost and that was around 85% duty cycle, so they defiantely supply enough fuel.
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Location:
Ballarat
Registered:
September 2003
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Location:
Pilbara
Registered:
November 2004
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Location:
Hobart
Registered:
July 2004
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Re: 3tgte to 3sgte injector
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Wed, 10 August 2005 12:17
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Can u use the 13B turbo injectors and plug into factory loom? and still work
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Location:
Parramatta
Registered:
July 2002
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Re: 3tgte to 3sgte injector
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Wed, 10 August 2005 23:11
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yes you can plug almost any injector in to the factory loom howver as stated the plugs may need to be changed or modified (not a big deal) and then plug in however not every injevtor will directly fit into the fuel rail that needs to be considers. And another example lets take the 3tgte example with the rx7 550cc inj if you replace them with the factory ecu yes they will work still but if the std 3tgte injectors were pushed to say 70% duty cycle then the rx7 ones will be pushed to the same amount so in other word shitload of fuel is going to be pushed through and if you do still have std boost etc dont expect the car to run well if at all.
which brings me to my next question TurboRA28 didnt you have to use a fuel reg. and a larger fuel rail surly the rail wont supply the amount of fuel you need?
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