injector questions
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Joined: Aug 2001
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From: Tampa, FL
injector questions
Alright I had some questions about getting bigger fuel injectors. First off where can I get some good fuel injectors for a good price. Second, I know everyone goes with 720cc for upgrading their TII, is there a reason why? I mean is that the perfect size to do most upgades or what? How hard are they to install? I mean are they a direct replacement? What would happen if I got too big of ones and turned down the flow? Thanks alot.
Full Member
Joined: May 2001
Posts: 182
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From: Kingwood, WV
http://www.rx7.com
http://www.shaneracing.com
I am sure you can find better prices but those are the ones I could think of.
Search around for the ND 720cc Top Feed.
-Morbius
http://www.shaneracing.com
I am sure you can find better prices but those are the ones I could think of.
Search around for the ND 720cc Top Feed.
-Morbius
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Joined: Dec 2001
Posts: 354
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From: WEST
There is no reason for you to get 720cc if you haven't bumped up the boost and don't have anything to control the injectors. You will run RICH and it will bog when the secondaries kick in. On the dyno when I had 720cc and compressor upgrade, I had to turn *down* the 720cc since it was injecting too much fuel and I was loosing power. (4) 550cc is lots of fuel for mild mods.
Rather than doing things blindly, install an EGT gauge or Air/Fuel gauge. At least you'll know when you get into the lean zone. Installing larger than 720cc means modifying the fuel rail (not a big deal).
Contrary to what others believe, larger injectors will not give you more power. More gas will not net you more power.
Rather than doing things blindly, install an EGT gauge or Air/Fuel gauge. At least you'll know when you get into the lean zone. Installing larger than 720cc means modifying the fuel rail (not a big deal).
Contrary to what others believe, larger injectors will not give you more power. More gas will not net you more power.
Thread Starter
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Joined: Aug 2001
Posts: 7,539
Likes: 0
From: Tampa, FL
Originally posted by IWNTA20B
There is no reason for you to get 720cc if you haven't bumped up the boost and don't have anything to control the injectors. You will run RICH and it will bog when the secondaries kick in. On the dyno when I had 720cc and compressor upgrade, I had to turn *down* the 720cc since it was injecting too much fuel and I was loosing power. (4) 550cc is lots of fuel for mild mods.
Rather than doing things blindly, install an EGT gauge or Air/Fuel gauge. At least you'll know when you get into the lean zone. Installing larger than 720cc means modifying the fuel rail (not a big deal).
Contrary to what others believe, larger injectors will not give you more power. More gas will not net you more power.
There is no reason for you to get 720cc if you haven't bumped up the boost and don't have anything to control the injectors. You will run RICH and it will bog when the secondaries kick in. On the dyno when I had 720cc and compressor upgrade, I had to turn *down* the 720cc since it was injecting too much fuel and I was loosing power. (4) 550cc is lots of fuel for mild mods.
Rather than doing things blindly, install an EGT gauge or Air/Fuel gauge. At least you'll know when you get into the lean zone. Installing larger than 720cc means modifying the fuel rail (not a big deal).
Contrary to what others believe, larger injectors will not give you more power. More gas will not net you more power.
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