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kenand1988

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Any idea how much boost the 100mm pulley was making?
Keep in mind that the G3 head units have a larger inlet versus the G2. I think you can order the MAK inlet for different Procharger head units, so it's not one size fits all.

The G2 inlet comes with a 4" K&N Filter and the MAK is 4.5".

Based on Brad's assessment, it sounds like the G3 inlet is larger on both ends than the G2...
It is. You would need both a new air filter tube and the tube that goes to the intercooler from the outlet of the headunit to go from a g2 to g3 but you do use the same air filter either way
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kenand1988

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Any idea how much boost the 100mm pulley was making?
Looks like it topped out at 14psi or 195 kpa. Barometric pressure was 14.1. Converting 195 kpa to psi is 28.2 minus barometric pressure gives us a boost of 14.1. My tuner did not log through the boost pid for some reason. It did seem to flatten out a bit after 7200 like someone else mentioned. The other belt I have doesn't fit like no way is it possible. I'm not sure if it could be belt slip I'll do some more logging on my own.
20220119_193815.jpg


As far as fuel pressure I wanted him to log the low side but he only did the rail pressure itself but as you can see it held pressure well.
 

kenand1988

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20220119_191956.jpg

This is what I use to test. The car is not setup as flex fuel so hptuners does not show the e content calculated by the wide bands. You could add your own wide bands or put a sensor in the rail and have that on a dedicated guage if you wanted.
 

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Looks like it topped out at 14psi or 195 kpa. Barometric pressure was 14.1. Converting 195 kpa to psi is 28.2 minus barometric pressure gives us a boost of 14.1. My tuner did not log through the boost pid for some reason. It did seem to flatten out a bit after 7200 like someone else mentioned. The other belt I have doesn't fit like no way is it possible. I'm not sure if it could be belt slip I'll do some more logging on my own.
20220119_193815.jpg


As far as fuel pressure I wanted him to log the low side but he only did the rail pressure itself but as you can see it held pressure well.
Which manifold are you running? Stock 18+?

Thanks for providing all this
information for us.
 

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TEXAS HEAT

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Looks like it topped out at 14psi or 195 kpa. Barometric pressure was 14.1. Converting 195 kpa to psi is 28.2 minus barometric pressure gives us a boost of 14.1. My tuner did not log through the boost pid for some reason. It did seem to flatten out a bit after 7200 like someone else mentioned. The other belt I have doesn't fit like no way is it possible. I'm not sure if it could be belt slip I'll do some more logging on my own.
20220119_193815.jpg


As far as fuel pressure I wanted him to log the low side but he only did the rail pressure itself but as you can see it held pressure well.
That's making some steam for sure! Is that the 105mm or the 100mm?
 

TEXAS HEAT

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It is. You would need both a new air filter tube and the tube that goes to the intercooler from the outlet of the headunit to go from a g2 to g3 but you do use the same air filter either way
I anxious to see Brad's results with the larger air filter, he might pick up a pound of boost.
 

kenand1988

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That is the 100mm
it’s actually very easy, my e85 usually test at 70 so I do 6 gallons 93 and 4 gallons e85 for e30. You don’t have to be exact it can be plus or minus 5 ethanol content.
E85 pumps are quite a bit further from me and since these pumps are in Phoenix they are anywhere from $1 to $1.5 more a gallon than the E50 I can get in Casa Grande. We do not have 93 so just 91.
 

Brad1810r80

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Can’t go off of rail fuel pressure as mine held exactly what it needed but look at my fuel lift pump pressure. This was on straight e85 and 120mm pulley. Definitely need to log the fuel lift pump pressure.


48FC6F2F-C130-4FA9-AE22-85796331624D.jpeg


As far as fuel pressure I wanted him to log the low side but he only did the rail pressure itself but as you can see it held pressure well.
[/QUOTE]

48FC6F2F-C130-4FA9-AE22-85796331624D.jpeg
 
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kenand1988

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Can’t go off of rail fuel pressure as mine held exactly what it needed but look at my fuel lift pump pressure. This was on straight e85 and 120mm pulley. Definitely need to log the fuel lift pump pressure.


48FC6F2F-C130-4FA9-AE22-85796331624D.jpeg


As far as fuel pressure I wanted him to log the low side but he only did the rail pressure itself but as you can see it held pressure well.
]

48FC6F2F-C130-4FA9-AE22-85796331624D.jpeg

[/QUOTE]

You Are requesting quite a lot more fuel than me due to the e85. I'm at 530 lb/h. Rail pressure seems to be what he goes off but I get what you're saying.
 

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Brad1810r80

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Not saying your car isn’t safe at all id just wanna know what the fuel pump lift pressure. I got me a dw400 coming hopefully it will let me go back to the e85 and 120mm pulley.




You Are requesting quite a lot more fuel than me due to the e85. I'm at 530 lb/h. Rail pressure seems to be what he goes off but I get what you're saying.
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kenand1988

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Not saying your car isn’t safe at all id just wanna know what the fuel pump lift pressure. I got me a dw400 coming hopefully it will let me go back to the e85 and 120mm pulley.






You Are requesting quite a lot more fuel than me due to the e85. I'm at 530 lb/h. Rail pressure seems to be what he goes off but I get what you're saying.
[/QUOTE]

Has anyone bench tested the stock pump or does anyone know what it's flow rate is on different voltages? I love how dw actually includes a nice data sheet that shows what their pumps flow at different voltages.
 

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Looks like it topped out at 14psi or 195 kpa. Barometric pressure was 14.1. Converting 195 kpa to psi is 28.2 minus barometric pressure gives us a boost of 14.1. My tuner did not log through the boost pid for some reason. It did seem to flatten out a bit after 7200 like someone else mentioned. The other belt I have doesn't fit like no way is it possible. I'm not sure if it could be belt slip I'll do some more logging on my own.
20220119_193815.jpg


As far as fuel pressure I wanted him to log the low side but he only did the rail pressure itself but as you can see it held pressure well.

High side pressure doesn't mean as much when half or more of your fueling is coming from the low side remember it has 2 sets of fuel rails but either way it's still holding commanded a/f. Also it's only pushing about 84 pounds a minute up top, that's not very much for 14 psi. I usually push over 86 pounds at 10 psi with the trims within 2 percent, your trims look a little off.
 

kenand1988

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High side pressure doesn't mean as much when half or more of your fueling is coming from the low side remember it has 2 sets of fuel rails but either way it's still holding commanded a/f. Also it's only pushing about 84 pounds a minute up top, that's not very much for 14 psi. I usually push over 86 pounds at 10 psi with the trims within 2 percent, your trims look a little off.
Yep I know what you mean about the MAF. I have done plenty of logs while driving where I have maxed out the MAF at 86.69 on the 105mm pulley. Only the 2nd 105mm run made 86.69 and that was the 839 hp number. The other 2 100m runs didnt max the maf out but made more power still. Something else is at play.
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