[s-cars] Fw: RS2 replica injectors - before and after emission

[Mark Strangways]

----- Original Message ----- 
From: "Mark Strangways" <StrangConst at rogers.com>
To: "Tony Curran" <tony.curran at sympatico.ca>
Sent: Wednesday, November 01, 2006 7:06 PM
Subject: Re: [s-cars] RS2 replica injectors - before and after emission


> Not unless the software is programmed for use with these injectors.
> Otherwise you will have too much fuel at times.
>
> Mark
> ----- Original Message ----- 
> From: "Tony Curran" <tony.curran at sympatico.ca>
> To: <s-car-list at audifans.com>
> Cc: <skiguy at shaw.ca>
> Sent: Wednesday, November 01, 2006 5:40 PM
> Subject: Re: [s-cars] RS2 replica injectors - before and after emission
>
>
>> All,
>>
>> Just wondering if it is worthwhile putting these replica RS2 injectors in 
>> to
>> a stock setup with MRC stage 2 software?
>>
>> Thanks
>>
>> Tony
>> 96 S6
>>
>> -----Original Message-----
>> From: s-car-list-bounces at audifans.com
>> [mailto:s-car-list-bounces at audifans.com] On Behalf Of mtgadbois at aol.com
>> Sent: November 1, 2006 12:30 PM
>> To: s-car-list at audifans.com
>> Cc: skiguy at shaw.ca
>> Subject: Re: [s-cars] RS2 replica injectors - before and after emission
>>
>>
>>
>> Just to add my experience, I too have noticed a smoother idle with the 
>> 034
>> RS2 replica injectors.  My setup is the same as Rob's except I'm driving 
>> a
>> 95.5 S6 and in Chicago 93 octane is the best you can get.  FWIW, I did 
>> not
>> have a problem with emissions testing while using the D/L injectors.  In 
>> all
>> categories the emissions were well under the levels allowed.  However, 
>> with
>> the replicas I have not had the O2 light come on as it did with the D/Ls. 
>> I
>> have put approximately 500 miles on the injectors so far.  The D/Ls were 
>> in
>> for 25,000 miles - now off to ebay.
>>
>> I suppose the question to ask Bob is there a software upgrade available 
>> from
>> Mihnea that will give us even more POWER?
>>
>> Mark near Chicago
>>
>>
>>
>> Rob wrote:
>>
>> Due to some recent troubles passing BC emissions testing I decided to 
>> swap
>> my 37#D/L injectors with RS2 replicas. The results are an interesting
>> before/after look into injector performance.
>> Car is a 93 with RS2 turbo, 37# D/L injectors, stock MAF, MRC RS2 
>> software,
>> no FMIC, 94 octane gas.
>> Tests were at sea level, roughly 20?C, nitrous-less atmosphere. Before 
>> and
>> after tests used identical rolling road speed setpoints
>>
>> Before:
>> HC=1.2461 g/km (PASS IS 0.5)
>> CO=24.9081 g/km (PASS IS 9.32)
>> NOx=1.1922 g/km (PASS IS 1.24)
>>
>> After (swapped in RS2 replicas):
>> HC=0.3568 g/km (71% reduction)
>> CO=6.4771 g/km (74% reduction)
>> NOx=0.3707 g/km (69% reduction)
>>
>> I now feel like a proud parent.
>>
>> So far, no knocking issues, but I should mention that I haven't put that
>> many kms on her yet. ON the few pulls I have tried, no issues whatsoever.
>>
>> Unfortunately, I don't have a A/F gauge or pyrometer to assess 
>> before/after
>> differences in these areas.
>>
>> S-O-P meter tells me nicer idle and smoother throttle response. Not sure
>> about mileage or bumper soot accumulation yet.
>>
>> One note: during the install of the new injectors, I did not use the old 
>> OEM
>>
>> injector clips to connect the injectors to the rail. According to 034, 
>> these
>>
>> are not required and they have done many installs w/o re-using the clips.
>>
>> I took a close-up picture comparing stock, 37# D/L and RS2 replica 
>> injector
>> nozzles and will post later.
>>
>> Hope this helps people in the same situation.
>>
>> Rob
>>
>>
>>
>>
>>
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>