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Old 06-10-2015, 07:11 PM   #1421
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</p><p>So AFPR's are not cheap. 150 at least. What about finding a fixed FPR thats 90psi or so? Seems like it could be cheaper, and a way to get the most out of some of these new injectors. ID lists their max fuel pressure for ID1000's at 101.5psi differential. I don't see how they could have made their injectors support more fuel pressure when they are just custom Bosch EV14's.</p><p>
</p><p>&nbsp;</p><p>you said it yourself, they are custom. thres no reason a stiffer spring cant be optioned to&nbsp;keep&nbsp;the valve&nbsp;closed under pressure</p>
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Old 06-10-2015, 07:12 PM   #1422
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<p>Anybody know of a car that runs a fuel pressure that high stock?</p>
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Old 06-10-2015, 07:13 PM   #1423
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</p><p>Anybody know of a car that runs a fuel pressure that high stock?</p><p>
</p><p>&nbsp;</p><p>ive seen a few on here just cant recall which. i think one was SC</p>
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Old 06-10-2015, 07:28 PM   #1424
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Quote:
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Are we sure that deadtimes are pressure related?
Injector Dynamics seems to think they are

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Old 06-10-2015, 07:30 PM   #1425
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<p>Yes, I found that right after I asked. Odd that the listed dead times for the GT500 injectors are so much lower than the 725s. I wonder if there is an equation to it or if it is just pure testing. Maybe I will try and find out </p>
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Old 06-10-2015, 07:33 PM   #1426
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Yeah, sorry about that. I was a little behind in the reply there. When you think about it logically, it 100% makes sense as to why they change.

If you go back to the really, really old posts here on the forum where people were ghetto rigging stuff because not everyone had a MS, you can find guys doing stuff like much higher fuel pressure. You can find a bunch of this old data here: Fuel Injectors - Miata Turbo FAQ

RC has a really crude calculator for this stuff here: http://www.rceng.com/technical.aspx

ID has a much much better calculator here: http://injectordynamics.com/injector-selector/
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Old 06-10-2015, 08:09 PM   #1427
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<p>Doing some more reading and research, also shot off an email to ID because I read in more than one place that they have tons of injector data on the GT500 injectors.</p>
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Old 06-10-2015, 08:36 PM   #1428
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If ID sends you data for the GT500 EV14s, please post it somewhere relevant. (ie: not in your build thread)
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Old 06-10-2015, 08:38 PM   #1429
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<p>No way, I'm going to hoard it and charge people to use it &nbsp;</p>
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Old 06-10-2015, 08:40 PM   #1430
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Quote:
Originally Posted by aidandj View Post
If I have an adjustable FPR is there any reason not to run like 90psi of fuel pressure? Wouldn't the injectors flow like double the fuel?
Sqrt(New Pressure / Old Pressure). So double the differential pressure gives 1.41 times the flow.
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Old 06-10-2015, 08:41 PM   #1431
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<p>So 850 if they don't lock up.</p>
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Old 06-10-2015, 09:02 PM   #1432
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Stick an NB regulator on there and get 60psi base pressure. Of course, you'll lose the vacuum/boost reference part
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Old 06-10-2015, 09:03 PM   #1433
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<p>Already told concealer I was buying his fuelab. Also, VVT swap </p>
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Old 06-10-2015, 09:05 PM   #1434
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Wait, what? Hahaha! 1.8 swap will be good for you, it'll help break more diffs
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Old 06-10-2015, 09:06 PM   #1435
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<p>Its not happening anytime soon. But it will happen. If the auction car has an ok engine then it will happen sooner that I had hoped. If the engine is bad then it will wait for another auction car.</p>
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Old 06-10-2015, 09:59 PM   #1436
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<p>How many torsens do I have to break before I should have gotten a ford swap or whatever.</p><p>I should just stick the 9 inch off my truck under there. 4 link + 500hp vvt in a 2500lb car. Sweet drag times.</p>
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Old 06-10-2015, 10:08 PM   #1437
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Hurray for live axle swap! Probably gonna need some flares.
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Old 06-10-2015, 10:12 PM   #1438
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Goddammit Hyper! How many times do you have to be banned before you figure out you are not welcome here?
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Old 06-10-2015, 10:17 PM   #1439
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<p>Its been done before :( no fun.</p><p><img src="http://cimg9.ibsrv.net/gimg/www.miataturbo.net-vbulletin/512x384/80-mg_7fbd15c0a551878d8c643aedf5f48be3f41a8cc4.gif" title="" /><br /><br />&nbsp;</p>
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Old 06-10-2015, 10:23 PM   #1440
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So has genocide and sexual assault but that does not make these things any more acceptable.

Weren't you just complaining about not having a welder?
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