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Old 08-30-2007, 01:21 AM   #1
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Default mods for 8-10 psi

can someone run by me a quick list of mods to run 8-10 psi?
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Old 08-30-2007, 02:13 AM   #2
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IC
HP Fuel Pump
Bigger Injectors
Standalone Or
Bandaids
Such as Timing control, 02 clamp, etc.
With 10psi I would rather want a standalone though.
A Bigger DP would be helpful.
A helper Spring

Thats all i can think of. Im tired.
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Old 08-30-2007, 02:21 AM   #3
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hey pai your still around eh? Sweet. Oh and what do you mean by a "helper spring"?
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Old 08-30-2007, 03:14 AM   #4
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it's a spring that goes onto the internal wastegate and runs parallel to the wastegate actuator. It should help with keeping a steady pressure instead of overshooting your target pressure and settling down towards redline.

Of course, I'd highly recommend going with a better actuator. I upraded to a gt28 wastegate and it helped with both spool times and controlling the boost levels across the rev range.
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Old 08-30-2007, 03:21 AM   #5
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well i got a gt25r actuator because i have a gt25r
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Old 08-30-2007, 09:53 AM   #6
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mod for 8-10psi:

enough fuel
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Old 08-30-2007, 12:08 PM   #7
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Quote:
Originally Posted by Braineack View Post
mod for 8-10psi:

enough fuel

amen.
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Old 08-30-2007, 01:08 PM   #8
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will a walbro 190 and 1.8 inectors be good for 8 psi?
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Old 08-30-2007, 01:14 PM   #9
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yes.

then you gotta tune the pressure a bit.
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Old 08-30-2007, 01:27 PM   #10
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how would you tune pressure with the vortech diff disks?
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Old 08-30-2007, 01:29 PM   #11
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Quote:
Originally Posted by Slidin'Miata916 View Post
IC
HP Fuel Pump
Bigger Injectors
Standalone Or
Bandaids
Such as Timing control, 02 clamp, etc.
With 10psi I would rather want a standalone though.
A Bigger DP would be helpful.
A helper Spring

Thats all i can think of. Im tired.
FMIC, 1.8inj, MSD Timng Controller/Bipes, LC-1 w/ gauge for tuning, boost gauge, Begi AFPR, 255LPH HP fuel pump, boost controller.

Bigger DP/exhaust would help ALOT.

If you start seeing boost drop off, and aren't running INSANE RICH, you will need a helper spring. Too rich and you start losing exhaust velocity and it won't keep the turbo spooled up. I found that out the hard way this week.
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Old 08-30-2007, 01:31 PM   #12
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Quote:
Originally Posted by turbobluemiata View Post
how would you tune pressure with the vortech diff disks?
They have a disk set that lets you go 2:1. 4:1, 6:1, 8:1, and 10:1. With 1.8inj you will probably end up using the 6:1 disk.
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Old 08-30-2007, 02:00 PM   #13
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so you say the walbro 255? but other ppl say its overkill which one? how far can you go with the 190?
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Old 08-30-2007, 02:01 PM   #14
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Quote:
Originally Posted by ray_sir_6 View Post
They have a disk set that lets you go 2:1. 4:1, 6:1, 8:1, and 10:1. With 1.8inj you will probably end up using the 6:1 disk.
For the amount of money they charge for the set though (and for that matter each disc) it's probably worth it to just buy the BEGI add-on regulator for $199 and get rid of the Vortech. At least, that is my plan if I don't man up and do MS.
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Old 08-30-2007, 02:03 PM   #15
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Quote:
Originally Posted by turbobluemiata View Post
so you say the walbro 255? but other ppl say its overkill which one? how far can you go with the 190?
See the FAQ. Section 4.

https://www.miataturbo.net/forums/showthread.php?t=4288

190HP should be more than adequate for anything utilizing the Greddy turbo.
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Old 08-30-2007, 04:06 PM   #16
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Quote:
Originally Posted by turbobluemiata View Post
so you say the walbro 255? but other ppl say its overkill which one? how far can you go with the 190?
$90 for the 255lph HP if you are interested.
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Old 09-17-2007, 11:02 PM   #17
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may want to upgrade your clutch depending upon how new it is.
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