Subject	Re: Why does it matter that it is overkill? Until you hit boost
Posted by	supermario680 on July 06, 2011 at 3:10 PM
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In Reply To	Why does it matter that it is overkill? Until you hit boost posted by kkrofft (OH) on July 06, 2011 at 02:10 PM
Message	370cc wouldn't be bad at all. 740's are so big that they would be open an extremely small amout of time at idle which would affect accuracy of fuel delivery. Off idle it shouldn't be a problem. I have 740's on my TT and the idle is mostly pretty smooth, when its cold the rpms drop really low when I let off the gas. And kinda jerks a bit when you first tap the gas. Only when cold though so I'm not sure if its injector related.
Follow Ups	Odd Injector Question - Red Hawk (CO) 11:25:35 07/06/11 Any injector size change reqires changes to the chip. - kkrofft (OH) 11:29:15 07/06/11 Re: Any injector size change reqires changes to the chip. - Red Hawk (CO) 11:32:49 07/06/11 FWIW - OverZealous (CT) 12:50:02 07/06/11 Sometimes driveability at low speed/throttle suffers - Summeronthechain (MN) 11:48:33 07/06/11 Re: Odd Injector Question - supermario680 12:12:19 07/06/11 For an NA even 370cc is over kill and you want to go 2x - Bernie (NoVA) 12:40:48 07/06/11 I totally agree, its waaay overkill. just wondering if it - Red Hawk (CO) 13:02:44 07/06/11 Re:2nd (n/m) - njz 13:04:57 07/06/11 Why does it matter that it is overkill? Until you hit boost - kkrofft (OH) 14:10:57 07/06/11 because idle & low speed driveablilty issues are likely to - Bernie (NoVA) 14:26:42 07/06/11 I understand what you are suggesting but I just don't see - kkrofft (OH) 17:12:12 07/06/11 If correctly tuned that is absolutely not an issue (n/m) - ztunerz 22:40:31 07/06/11 I think there is more to consider. - Bernie (NoVA) 22:52:54 07/06/11 Toyota Supra? (n/m) - ZiNnYc 23:00:10 07/06/11 555cc is not unreasonable for that car. - Bernie (NoVA) 23:21:44 07/06/11 Re: Why does it matter that it is overkill? Until you hit boost - supermario680 15:10:51 07/06/11 Sounds like you need to tweak the low speed section of the - kkrofft (OH) 17:13:49 07/06/11 Is the 12v rewire really necessary? Got a link to write-up? (n/m) - zmenon 03:20:17 07/07/11 YES - there are several detailed options in the AutoFAQ (n/m) - Bernie (NoVA) 13:33:10 07/07/11 Here are my thoughts....... - Greg D. (Specialty-Z) 19:25:30 07/06/11 Agreed on all counts (n/m) - ztunerz 22:41:38 07/06/11 Can be done, but I suggest try replacing the ones that are - Z32TT-R 15:17:29 07/07/11 Available above FWIW (n/m) - OverZealous (CT) 21:09:56 07/07/11
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