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Old 06-06-2010, 01:01 AM   #1
scioncrew
 
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not needed.. unless your going for big power. even then your going to need a CDI unit with the coils. put your money else were like tuning on the dyno.
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05 Scion tC allmotor 350+ hp 9.34@144mph
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Old 06-06-2010, 03:57 PM   #2
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not needed.. unless your going for big power. even then your going to need a CDI unit with the coils. put your money else were like tuning on the dyno.
You can share your information based on fact on what you said.....
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Old 06-06-2010, 05:54 PM   #3
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Another option to consider is reducing the plug gap if you did experience misfiring under heavy boost. I doubt you can use enough boost with 10.5:1 compression to encounter firing problems. I think you might just find it won't go quite as far wider than normal as the plug wears before it begins to misfire as it will unboosted. But I don't run boost and don't plan to.

I have seen neglected plugs in unboosted engines grow some impressively wide gaps before starting to misfire. (Including my daughter's old Echo that came with standard plugs, no platinum or iridium, and went 107,000 miles.) The stock coils have a lot of extra voltage capacity with the plugs at stock specs.
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Old 06-08-2010, 12:40 AM   #4
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Yaris Hilton now what he is talking about.

I do have hands on experience with the AEM coils and they where not good. Garm's car went throw 5 coils,2 AEM CDI unit (with has been over a year and still have not gotten replacements) and a MSD DIS-4. Garm's car now is running M&W ignition CDI box and 4 Honda CBR coils and is bug free . Im sad to say I don't recommend AEM CDI or there coils to anybody any more.

Hope this help..
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05 Scion tC allmotor 350+ hp 9.34@144mph
05 Scion tC sfwd 880hp 9.96@147mph
05 Scion xB 280hp 12.97@104mph
07 Toyota Yaris 357hp 12.80@107mph
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Old 06-08-2010, 10:22 AM   #5
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not needed.. unless your going for big power.
Can you tell me what do you mean by big power in terms of hp or boost?

My intensions for now are 14psi boost using the same turbo Garm has. Do you know if the stock coils are reliable enough for that power?
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Old 06-08-2010, 12:22 PM   #6
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Originally Posted by Parmas View Post
Can you tell me what do you mean by big power in terms of hp or boost?

My intensions for now are 14psi boost using the same turbo Garm has. Do you know if the stock coils are reliable enough for that power?
400+ hp 25+ psi thats big power for the 1nz motor. 14 psi should not be a problem with OE coils. My low boost is 14psi and high is 20 and I'm on stock coils.
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05 Scion tC allmotor 350+ hp 9.34@144mph
05 Scion tC sfwd 880hp 9.96@147mph
05 Scion xB 280hp 12.97@104mph
07 Toyota Yaris 357hp 12.80@107mph

Last edited by scioncrew; 06-12-2010 at 08:40 PM.
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