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some simple questions about the top of the motor

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Old 07-23-2009, 12:11 AM
  #1  
ttocs
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Default some simple questions about the top of the motor

I have a couple of questions about the intake that has confused me and I can't seem to find an answer. I have the type of mind that I have to see it working or at least see it working in my head to understand something and these few questions make no sense to me.

1rst - TB and MAF - why are these different sizes? How much of a difference are you supposed to have? Is it just a couple of mm or is it some kind of %? What happens when you do not have these correct? what would happen if they were the same size and god forbid if you had it backwards?

2nd - maf and and injectors - My MAF says it is calibrated for 19 lb injectors but I need to upgrade to 24 lb? Is it as simple as just slappin the larger injectors on or is there something that needs to be done to the MAF too? What about the ECU and this is in an SN95 if it makes a difference since I have heard our computers are a little "funny" as the best description I can get and not "funny haha".

3rd - what is "funny" about my ECU? technically speaking.......

thanks for your time.
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Old 07-23-2009, 12:18 AM
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SKAR
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Why are you worried about this?
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Old 07-23-2009, 12:21 AM
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jkrum10238
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tb-maf, size matters only horse power wise you want them big enough that they are not restricting any flow.
mmaf you need to match your injector size with your maf calibration. if you upgrade to 24lb inj you need a 24 lb calibrated maf
and idk anything about sn95 ecus but from what ive heard they are just picky about certain upgrades some else will have to verfy that
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Old 07-23-2009, 01:11 AM
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ttocs
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Originally Posted by SKAR
Why are you worried about this?
Because I would like to learn about my motor?

Why would you ask(rhetorical sarcasm)? thanks for your time.
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Old 07-23-2009, 10:04 AM
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anyone have any better answer? how much of a difference should there be between the TB and MAF and why?
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