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Location:
Brisbane
Registered:
June 2003
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Upgrade 7MGE Injectors
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Tue, 31 May 2005 05:49
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is there any such beasts?
cheers
blake
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Location:
Rocklea qld
Registered:
February 2003
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Re: Upgrade 7MGE Injectors
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Tue, 31 May 2005 11:31
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what exactly do u mean. all i can say is put 7mgte ones in to upgrade
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Registered:
August 2002
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Re: Upgrade 7MGE Injectors
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Tue, 31 May 2005 11:42
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7mge yellow injectors = 295cc 2.7ohms resistance
7mge light green = 315cc 13.8 ohms resistance
and no gte ones wont work, wrong resistance.
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Location:
Wagga
Registered:
August 2004
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Re: Upgrade 7MGE Injectors
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Tue, 31 May 2005 12:22
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are the yellow and green ones interchangable? do they make any difference, like is one lot better than the other
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Location:
Brisbane
Registered:
February 2003
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Re: Upgrade 7MGE Injectors
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Tue, 31 May 2005 13:11
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Q: are the yellow and green ones interchangable
A: also like what blacksupra wrote - wrong resistance
also ... the ECU fuel maps are not adjustable - so all you'll achieve is even poorer fuel economy, sooty exhaust, clogged-up spark plugs and possibly a choked-up O2 sensor
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Registered:
March 2005
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Re: Upgrade 7MGE Injectors
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Tue, 31 May 2005 13:15
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hey buddy if you put a 3.366 resistor or there abouts in parallel with each of the 7m-gte injectors(13.8 ohms) you will have a combined total resistance of 2.705976931........ etc. 
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Upgrade 7MGE Injectors
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Tue, 31 May 2005 14:27
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why do you want bigger injectors? I can't see the point unless they are past their max duty cycle.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Upgrade 7MGE Injectors
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Tue, 31 May 2005 17:00
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news flash, the 2 injectors are rated at different pressures, and actully flow the exact same amount. oviously the lower imp injectors are the better ones to have though
ed
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Location:
Brisbane
Registered:
June 2003
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 06:52
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What does the size of your injectors have to do with go? That said, the 295cc ones should be a match for early 1GGTE injectors.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 06:53
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You want bigger injectors?
Another set of 7MGE yellow's?
Factory ecu?
Turbo setup?
Details, you haven't actually asked a specific question.
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Location:
Brisbane
Registered:
June 2003
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 07:41
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| CrUZsida wrote on Wed, 01 June 2005 16:53 |
You want bigger injectors?
Another set of 7MGE yellow's?
Factory ecu?
Turbo setup?
Details, you haven't actually asked a specific question.
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i just wanted to know if there are any bigger injectors i can readily find in good nic
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 07:48
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Anything topfeed and bigger
7MGTE - 440cc
GTR - 440cc
RX7 - 550cc
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Location:
Brisbane
Registered:
June 2003
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 09:42
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Injectors are roughly 10c per cc per injector.
So a set of 440cc injectors will cost about $44 each, or $260ish a set of 6.
This is 2nd hand of course, and not serviced.
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Location:
Brisbane
Registered:
June 2003
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 09:52
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ok so they NEED to be topfeed correct?
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Location:
Adelaide
Registered:
September 2003
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 10:21
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Blake,
If you want some replacement yellow ones from a 7M-GE, let me know - bargain price !!!!
Cheers
Michael B
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Location:
nth ringwood, Victoria
Registered:
August 2002
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 10:26
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i have some altezza injectors and they are 13.8 ohms and are 365 cc
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Location:
Brisbane
Registered:
February 2003
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 10:28
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none of this solves the problem of the ECU only having a fuel map for the stock injectors...
so until you add the price for a tunable aftermarket ECU, this is all a bit academic?
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Registered:
August 2002
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Re: Upgrade 7MGE Injectors
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Wed, 01 June 2005 10:34
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| thechuckster wrote on Wed, 01 June 2005 20:28 |
none of this solves the problem of the ECU only having a fuel map for the stock injectors...
so until you add the price for a tunable aftermarket ECU, this is all a bit academic?
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But the correct resistance injectors and say an SAFC would work ok.
But at the end of the day, your stock motor is no where near needing more fuel than the stock injectors can supply.
So i say spend the $200ish dollars and have your injectors ultrasonically cleaned and have new o rings installed and go from there.
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Location:
Brisbane
Registered:
May 2002
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Re: Upgrade 7MGE Injectors
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Thu, 02 June 2005 00:26
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Yeah man, its not like a carby, you can't just chuck in some bigger jets and it'll all be good 
Your stock injectors are more than adequate for what you need!
Getting larger injectors will require you to tune the ECU (aftermarket ECU or SAFC etc), is it really worth the effort? Hellz no springs to mind
Cheers
Wilbo
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Upgrade 7MGE Injectors
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Sat, 04 June 2005 11:57
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with all your engine building expertise blake, i find this thread a little amusing to say the least...
wtf do you expect to achieve with bigger injectors?? more 'go' ??
if its lean, and the injectors are the problem, fix and clean the injectors. i cant see what is so hard here 
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Location:
Wagga
Registered:
August 2004
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Re: Upgrade 7MGE Injectors
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Sun, 05 June 2005 00:06
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DONT ultrasonic clean 7m injectors as it destroys them and then they will start to leak when engine is off.
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Registered:
August 2002
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Re: Upgrade 7MGE Injectors
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Sun, 05 June 2005 07:05
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| Flebbert wrote on Sun, 05 June 2005 10:06 |
DONT ultrasonic clean 7m injectors as it destroys them and then they will start to leak when engine is off.
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Why is that?
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Membership Secretary
Location:
Sydney
Registered:
June 2002
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Re: Upgrade 7MGE Injectors
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Sun, 05 June 2005 08:48
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Yeah
Why is that??
Mine are still fine. In fact there were all ultra sonicly cleaned and I had no issues.
I am intrested to hear why you say not to
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