[urq] Verification needed: 2.5bar 3B folk?!

Talisman talisman05 at gmail.com
Wed Oct 14 06:35:21 PDT 2015

And yes stock injectors. Oops.
On Oct 14, 2015 5:27 AM, "Chris Miller" <chris.miller.home at gmail.com> wrote:

> Been a while... My 3b ia III+ used stock fuel pressure regulator and
> injectors.
> I have heard that aan injectors require higher fuel rail pressure, think
> the 7a one works.  You have stock injectors?
> Hard to comment without knowing how it was chipped.
> On Oct 13, 2015 9:20 PM, "Talisman" <talisman05 at gmail.com> wrote:
>> Still trying to figure out my (apparent) fuel starvation under boost
>> issue.
>> I was previously using a 944 fuel pump with a "pinched" ~4bar regulator,
>> both installed by previous owners. Since I replaced the pump with an OE
>> spec unit, I have been getting "limp home" behavior and lean mixture
>> readings every time I get into boost.
>> My recollection was that some years back several folks had told me that a
>> stock urq pump and a stock 3bar 3B regulator were sufficient for 2.5bar
>> performance on 3B'ed cars.
>> After checking almost everything else I can think of, I am wondering if
>> the
>> combination of the OE spec pump and unnecessarily pinched regulator might
>> be the problem.
>> The reason I'm soliciting the help is I found the OE Bosch regulator on
>> Amazon for $80 with prime shipping and I am mulling going ahead and
>> getting
>> it since I wanted to get back to that route anyway (if I understand
>> correctly that this will work just fine with the higher boost setup).
>> If anyone can confirm that the stock parts work fine with the 2.5bar 3B, I
>> would be most appreciative!
>> Thanks,
>> Jon
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