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MAF and Injectors for AU 347 Stroker 

 

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 Post subject: MAF and Injectors for AU 347 Stroker
Posted: Fri Jul 01, 2005 11:52 pm 
Oompa Loompa
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I currently have a set of 42lb injectors but feel they are probably too big.

What MAF should i run? What does the standard 70mm MAF allow for in terms of power/flow?

What size injectors for around 450hp?

Chiptorque will be reburning my chip to make it all work (fingers crossed).

Thanks Guys

 

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Posted: Sat Jul 02, 2005 12:19 am 
Getting Side Ways
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The stock 70mm MAF does technically supply enough for 450hp but I think you will still see gains going larger. I would probably look at a C&L 73mm MAF seeing Pro-M aren't really around at the moment. For injectors, I would look at a set of 30lb. Depending on how much support chiptorque has, they may be able to tune for the 42lb injectors but your economy will probably still suffer.
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Posted: Sat Jul 02, 2005 12:25 am 
Oompa Loompa
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How much HP can 30lb inj produce?

I can get a 75mm proM bullit and 30lb inj second hand for a resonable price.

What do C&L's go for? I heard they weren't as good!

 

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Posted: Sat Jul 02, 2005 1:07 am 
Getting Side Ways
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30lb injectors flow enough for around 480hp at stock fuel pressure. Yeah I would grab the Pro-M and 30lb injectors if the price was good, they are good MAFs. C&L MAFs go for around $400 from memory, some say they are worse than Pro-M but plenty of people get good results with them too. Pro-M are not without their own problems but generally they have fewer problems overall.
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Posted: Sun Jul 03, 2005 12:44 am 
Getting Side Ways
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Au2xlsv8 wrote:
How much HP can 30lb inj produce?

I can get a 75mm proM bullit and 30lb inj second hand for a resonable price.

What do C&L's go for? I heard they weren't as good!

Tom,
the Pro-M meter will certainly not be for a AU since your ATI was the only AU calibrated meter I managed to get out of Pro-M until they shut the doors (there were 10 on order though). The C&L will have the same problem the Granatelli meters have on AU's - they were designed for the pre 93 mustang and the calibration is way out on an AU - I know of 1 person who purchased a 15% lean Granatelli meter and still have to use an adjustable fuel pressure reg to get his A/F ratio's closer. I hope to have AU calibtated meters happening before the end of July.
Shane

 

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Posted: Sun Jul 03, 2005 1:08 pm 
Oompa Loompa
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Would a chip fix the problem?

I've still got the blow through! If anyone wants a nice big blow though AU cal'd MAF for 42lb inj i got one. If not i'll find a use for it eventually.

 

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Posted: Sun Jul 03, 2005 10:51 pm 
Getting Side Ways
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I am not sure a chip will be able to completely change the airflow meter tables to that extent but they may be able to. Who's 30mm MAF is up for sale - is it a nice chrome flanged one?

 

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Posted: Sun Jul 03, 2005 11:09 pm 
Oompa Loompa
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bullit 75mm flanged for 94-95 stang.

Not sure on crome?

Would i be better to get 30lb inj get chiptorque to tune and then get one of the new 80mm jobbies?

 

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Posted: Sun Jul 03, 2005 11:17 pm 
Getting Side Ways
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The 80mm unit will at least be calibrated for the AU - I am not sure how well you will go changing the MAF tables from 94-95 Mustang (which is sort of like 19 E series calibration) to AU calibration
Shane

 

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