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help with maxed MAF!!

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Old Jan 22, 2004 | 06:20 PM
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Default help with maxed MAF!!

The MAF is not maxed yet as motor is not in it, however at what horse power is the stock MAF max at 600hp? And other than the Fast system is there anyway around it. THANKS
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Old Jan 22, 2004 | 06:35 PM
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Originally Posted by 2FAST4U
The MAF is not maxed yet as motor is not in it, however at what horse power is the stock MAF max at 600hp? And other than the Fast system is there anyway around it. THANKS

Depends on what MAF you have, but most are much lower than 600RWHP. (428,450 or 512g/sec).

The way around it is PE Tuning. You basically have to start adding fuel exponentially after the MAF maxes since the base equation is no longer adding fuel. It's not perfect, but it keeps you in the ballpark.

Another option is a ProM universal MAF and some additional electronics to convert it over the ls1 frequency range. Do a search and you will find some info on it.
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Old Jan 22, 2004 | 06:48 PM
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I have forwarded this link to Jim @ Pro-M to see if we can get a response.
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Old Jan 22, 2004 | 06:59 PM
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It sure would be nice to have a direct plug in unit. I'm maxed out too with with only a 3.85" pulley on a P1SC and a small dry shot of nitrous. If I could solve the air fuel problem without a new computer it would be very easy to make a lot more power on this motor. I know I would be willing to pay a bit of a premium for a PnP MAF solution.
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Old Jan 22, 2004 | 07:07 PM
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Thanks PSJ hopefully some good comes of it, I too would like to see a PNP MAF that can handle high boost/big HP levels. I agree with Ken 100% No new computer, PNP and be priced fairly and they would have a quick sale from me.
How many others would be interested in this from Pro-M?
J
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Old Jan 22, 2004 | 07:10 PM
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Well I also have a 2stage nos kit was jeted at 20 each--dry shots.
And on the new motor and turbos the 2 stage is going to be wet shots
2 50hp shots maybe.

With the wet shot it ands fuel but at the same time big shots need timing removed so power is lost under boost! See the problem it is on going problem!
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Old Jan 22, 2004 | 07:10 PM
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When I was talking to Jim @ Pro-M on the fone, he indicated that the MAF could be calibrated in our software, so it sounds like they can provide a solution that won't max out as quickly as stock does.
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Old Jan 22, 2004 | 07:15 PM
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When I was talking to Jim @ Pro-M on the fone, he indicated that the MAF could be calibrated in our software, so it sounds like they can provide a solution that won't max out as quickly as stock does.
Sounding better and better, keep the good news coming
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Old Jan 22, 2004 | 07:17 PM
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Originally Posted by frcefed98
Thanks PSJ hopefully some good comes of it, I too would like to see a PNP MAF that can handle high boost/big HP levels. I agree with Ken 100% No new computer, PNP and be priced fairly and they would have a quick sale from me.
How many others would be interested in this from Pro-M?
J
A PnP setup would be nice.

I wonder if they could just redo the curve of a stock MAF and send a flow sheet with it so the MAF table in EDIT could be modified accordingly. The flow sheet could list the actual airflow values in Gm/sec for each frequency in the MAF table.

That way there would be no extra electronics involved and you need Edit no matter what.
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Old Jan 22, 2004 | 07:30 PM
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Originally Posted by Pro Stock John
When I was talking to Jim @ Pro-M on the fone, he indicated that the MAF could be calibrated in our software, so it sounds like they can provide a solution that won't max out as quickly as stock does.
When you say "calibrated in our software" whose software are you talking about?

Also I forgot to add in my post above that the IFR table would have to be fooled with also.
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Old Feb 1, 2004 | 10:40 AM
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Originally Posted by 2FAST4U
The MAF is not maxed yet as motor is not in it, however at what horse power is the stock MAF max at 600hp? And other than the Fast system is there anyway around it. THANKS
Yes we make a GM maf tuner that can rescale you present meter or use one of our bored out meters. GM maf tuners go for $299, the optional plug and play harness is another $85. The stock meter is good to about 1300kg/hr or 406hp conservatively. You can always force more air but the pressure drop thru the unit becomes more significant and you would lose more hp. Our web site is www.pro-flow.com for more informatoin.
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Old Feb 1, 2004 | 10:48 AM
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Originally Posted by XLR8NSS
When you say "calibrated in our software" whose software are you talking about?

Also I forgot to add in my post above that the IFR table would have to be fooled with also.
I have also tried to rescale stock GM meters, but there are trade offs, the meter would peg sooner if you attempt to rescale for bigger injectors reducing your dynamic range. There only appear to be 2 solutions, one is to use an interface rescaling device like the one I mentioned in another email, which is available now. The other is to is to take a Ford meter of any size and add a converter, this option is also available. This is what we did for Detroit Speed works to support the 600-650 rwhp corvette. Lastly the unit that is not available yet is a unit with the programmable feature built in. We have made prototypes but still lake production capability.
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Old Feb 1, 2004 | 10:53 AM
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Default PNP Solution

Originally Posted by Ken G
It sure would be nice to have a direct plug in unit. I'm maxed out too with with only a 3.85" pulley on a P1SC and a small dry shot of nitrous. If I could solve the air fuel problem without a new computer it would be very easy to make a lot more power on this motor. I know I would be willing to pay a bit of a premium for a PnP MAF solution.
Give us a call at 248 541 4780 and we will see if we can set you up with a PNP solution. Sorry I am not too good at this method of email yet.
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Old Feb 1, 2004 | 10:57 AM
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Default PNP Solution

Originally Posted by 2FAST4U
The MAF is not maxed yet as motor is not in it, however at what horse power is the stock MAF max at 600hp? And other than the Fast system is there anyway around it. THANKS
Hopefully I have not responded to you already, but here goes, we have several options for you. The basic option is to connect a MAF tuner in series with you stock meter allowing you to rescale your own meter. The 2nd option is to use a larger bore maf meter and the maf tuner for added hp. The 3rd option is to use a Pro M style large bore meter with a converter. And the last option is to use a large bore pro m meter with the converter built in, which is not available at this time. All other options are.
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Old Feb 1, 2004 | 11:17 AM
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jim,when will the large bore pro m meter with the built in converter be available?And will it be plug and play?And how easily can larger injectors be added to the mix?
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Old Feb 1, 2004 | 11:22 AM
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Default PNP Solution

Originally Posted by 2FAST4U
The MAF is not maxed yet as motor is not in it, however at what horse power is the stock MAF max at 600hp? And other than the Fast system is there anyway around it. THANKS
Hopefully I have not responded to you already, but here goes, we have several options for you. The basic option is to connect a MAF tuner in series with you stock meter allowing you to rescale your own meter. The 2nd option is to use a larger bore maf meter and the maf tuner for added hp. The 3rd option is to use a Pro M style large bore meter with a converter. And the last option is to use a large bore pro m meter with the converter built in, which is not available at this time. All other options are.

Lastly a 512g/sec meter equates to about 1836 kg/hr or 918 cfm or 1.6 cfm per hp for a properly tuned engine. This works out to about 573hp at the engine, but again you will have added pressure drop thru the meter.
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Old Feb 1, 2004 | 01:44 PM
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Jim,

Thanks for the information! I asked my tuner to take a look at this thread and tell me if he thinks any of these options will work well with my setup. If so I'll be giving you a call.

-Ken
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Old Feb 1, 2004 | 02:58 PM
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Ken, Interesting to me to. My MAF is the only thing holding me back from more boost.
Kevin, will this work on my set up to????
This could be my ticket!!!!!!!! Oh baby.
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Old Feb 2, 2004 | 06:07 AM
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Thanks Jim for commng on here and answering our questions.
I do think alot of us would want a direct plug n play large bore MAF meter (3rd option your talking about) so please hurry and devolop one, and if you need a test specimn id be more willing to help, as other would be.


also how come some people on here can get away with over 700rwhp with the stock MAF meter, like Raymer's new forumla?
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Old Feb 2, 2004 | 06:21 AM
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Originally Posted by smokinHawk
also how come some people on here can get away with over 700rwhp with the stock MAF meter, like Raymer's new forumla?
Probably because he is adding enough fuel with the water/meth mix.
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