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How much boost can I run?

Old Jul 9, 2013 | 01:03 AM
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Question How much boost can I run?

Hello I'm quite new to this forum so excuse me if I sound like a noobie. I recently pieced together a T25 turbo kit from various sources for my 1991 miata (with 145k on it). I am running it with no intercooler or ecu, but with a economical supplement - a FMU (vortech) and a MSD ignition box. I plan on achieving around 4-6psi now is that possible given those parameters?
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Old Jul 9, 2013 | 01:06 AM
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Originally Posted by firefaux
Hello I'm quite new to this forum so excuse me if I sound like a noobie. I recently pieced together a T25 turbo kit from various sources for my 1991 miata (with 145k on it). I am running it with no intercooler or ecu, but with a economical supplement - a FMU (vortech) and a MSD ignition box. I plan on achieving around 4-6psi now is that possible given those parameters?
How much boost can I run?
EZPZ: ALLOFIT
Old Jul 9, 2013 | 01:13 AM
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Originally Posted by firefaux
Hello I'm quite new to this forum so excuse me if I sound like a noobie. I recently pieced together a T25 turbo kit from various sources for my 1991 miata (with 145k on it). I am running it with no intercooler or ecu, but with a economical supplement - a FMU (vortech) and a MSD ignition box. I plan on achieving around 4-6psi now is that possible given those parameters?
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Old Jul 9, 2013 | 01:14 AM
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Originally Posted by firefaux
I am running it with no intercooler or ecu, but with a economical supplement - a FMU (vortech) and a MSD ignition box. I plan on achieving around 4-6psi now is that possible given those parameters?
Simple answer: probably.

Slightly more verbose answer: I personally could not imagine tuning any forced-induction engine without a wideband O2 sensor, but then I do remember a time when men were men, sheep were scared, and wideband sensors were the exclusive playthings of OEMs and the very rich.
Old Jul 9, 2013 | 01:14 AM
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so a piggyback or standalone ecu would have to suffice?
Old Jul 9, 2013 | 01:16 AM
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yep allofit.

you're welcome
Old Jul 9, 2013 | 02:23 AM
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5.618333 (repeating, of course) psi
Old Jul 9, 2013 | 02:24 AM
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Raise fuel pressure to 100psi, set static timing to 6 degrees, disconnect actuator hose.
Old Jul 9, 2013 | 04:01 AM
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Originally Posted by 18psi
yep allofit.

you're welcome

Allofit as long as u got a JDM boost controller.
Old Jul 9, 2013 | 07:12 AM
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Originally Posted by aaronc7
5.618333 (repeating, of course) psi
sound about right given the stock accordion.
Old Jul 9, 2013 | 09:16 AM
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OP this guy has a truck engine just like your B6, and he runs 150PSI, so I'd run at least 75PSI or you are a *****.

Old Jul 9, 2013 | 09:44 AM
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You can run as much PSI as the turbo is capable of running.












Once.
Old Jul 9, 2013 | 01:23 PM
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aka all of it.
Old Jul 9, 2013 | 01:29 PM
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If this was my car and I wanted to run ALLOFIT, I'd kill myself for running bandaids and no intercooler.

Says the guy currently running only the wastegate on an EFR.
Old Jul 9, 2013 | 01:35 PM
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Block off the wategate.

YOLO
Old Jul 9, 2013 | 02:56 PM
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14.7 psi... absolute

at least until you get some proper fuel management, then you can explore above atmospheric pressure.
Old Jul 9, 2013 | 05:36 PM
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C'mon, you queers. It ain't that bad. The RRFPR and MSD "Sebring" box may not be cutting edge, but they were mainstream fuel and ignition management for a number of years.

Stop scaring the new guy.
Old Jul 9, 2013 | 06:44 PM
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Originally Posted by Joe Perez
C'mon, you queers. It ain't that bad. The RRFPR and MSD "Sebring" box may not be cutting edge, but they were mainstream fuel and ignition management for a number of years.

Stop scaring the new guy.
Sure, I mean if you are cool with using this:



Instead of this:
Attached Thumbnails How much boost can I run?-commodore_amiga_computer_system.jpg   How much boost can I run?-samsung-series-9-2012-profile.jpg  
Old Jul 9, 2013 | 08:59 PM
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Careful. Joe has one of these.



No wait, that's me.
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Old Jul 9, 2013 | 09:21 PM
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Imagine tunning with one of these sons of bitches on the passenger seat like a bauce.

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