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70 MM TB and MAF questions???parts help?

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Old 07-02-2004, 04:59 AM
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diablo9861
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Default 70 MM TB and MAF questions???parts help?

Ok i am going to be buying my next mods for my stang as soon as i can get some infor. i have some money but not much so im going the ebay route lol. anyways if i get a 70 MM TB and EGR as well as the 70 MM MAF would this be bad if i dont have 24# injectors yet ???? i found some on ebay for rather cheap in my book. IF anyone had anyhting parts they would sell id be more than happy to buy as long as they are working haha. All i have so far is an exhaust thats it, could use any and all help. thanks alot guys and girls
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Old 07-02-2004, 01:44 PM
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luckythirteen13
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Default RE: 70 MM TB and MAF questions???parts help?

if youve only done exhaust then 70mm would be over kill. 65mm is more then enough for the factory intake manifold. if you realy want to put 70mm on your car, i recomend getting a new intake manifold.

no its nota waste if you dont have 24# injectors. i think the factory ones are good up to 300 horse power and with only the exhaust done, you dont have 300 horse power
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Old 07-02-2004, 04:21 PM
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horatio102
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Default RE: 70 MM TB and MAF questions???parts help?

You need to get a MAF that is calibrated for whatever injectors you are running, or get a Tweecer or some other tuning program that will let you tell the EEC what voltage means what airflow as well as which injectors you have. You can get away with having them not calibrated, but you will run into A/F problems.

19 pound (stock) injectors hit 100% duty cycle at around 300 hp, meaning that they're just flowing constantly and not pulsing anymore. You don't want that. I'd upgrade before you get near that, since at the far ends (close to 0% and close to 100%) things start getting innaccurate. But for now the stock ones are fine.
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Old 07-03-2004, 01:44 AM
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diablo9861
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Default RE: 70 MM TB and MAF questions???parts help?

why would 70mm be overkill, im working on saving for the intake a lil down the line. im just going to get the 70mm, because its good later down the line towards my goal of 400 HP from what i have heard. So if i were to buy a 70mm TB and MAF that is calibrated to 19# injectors, can i recalibrate the MAF when i buy 24#injectors??? or how big of a bitch is that to do? or should i just do it all at once, TB injectors and MAF???? thanks alot guys
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Old 07-03-2004, 03:26 AM
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luckythirteen13
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Default RE: 70 MM TB and MAF questions???parts help?

i said its only over kill if you dont get the intake manifold. if you plan to get it later down the road then definitely get the 70mm. http://www.jdsperformance.com/index....tem&inmake=all i like this MAF cause its realy easy to calibrate it for any size injectors
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Old 07-03-2004, 12:29 PM
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vfast
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Default RE: 70 MM TB and MAF questions???parts help?

a 65mm tb is all you really need and you can get them for like 45.00 I used one on a 425hp car
do get a c/l 76mm or bigger maf this way you can buy the tube used for like 10.00 instead of a 75.00 cal fee from pro.
..the key is to smooth out the air into the t/b...going to a 2.5 exhaust will have more effect of hp than the intake...a set of pulleys will give you about the same hp as an intake...it's all about getting things to work together..I have ole 60mm t/b bored out to 65 for like 40.00 and it looks all factory. pulling the water lines off the egr spacer will help with about 5 hp gain
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