[s-cars] 3071 turbo & Pastore RS2 code question
Mark Strangways
Strangconst at rogers.com
Tue Mar 21 08:58:44 EST 2006
No, the manual boost control would not get the pressure to open (or vacuum to hold closed :-) ) the wastegate until the overboost happened.
You would place it in parallel to the n75 WGFV, there it would act as an upper limit or an operating controller what erver mode you wanted.
Mark,
----- Original Message -----
From: Joe Pizzimenti
To: Mark Strangways
Cc: chris chambers ; Scar
Sent: Tuesday, March 21, 2006 8:17 AM
Subject: Re: [s-cars] 3071 turbo & Pastore RS2 code question
Can you just install a manual boost controller in line with the N75 so that it maintains the same boost curve, but doesn't allow it to reach 30psi?
On 3/21/06, Mark Strangways <Strangconst at rogers.com> wrote:
to add..
I can write a boost map that allows 30 psi starting at 1000 rpm and running
to redline, but it will not do much good.
What will happen (likely) is that the turbo will spool up, when it builds
enough heat and pressure it will be at full speed and the wastegate will not
pull it back fast enough.
Mark
----- Original Message -----
From: "Mark Strangways" <Strangconst at rogers.com>
To: "chris chambers" < fastscirocco_2000 at yahoo.com>
Cc: "Scar" <s-car-list at audifans.com>
Sent: Tuesday, March 21, 2006 9:33 PM
Subject: Re: [s-cars] 3071 turbo & Pastore RS2 code question
> The answer is two fold,
> If your problem is the not software based, i.e.. bad n75 (WGFV) then no
> software will not help.
> If your problem is the fact that the software allows the turbo to get up
> to
> the mapped boost level so fast that the n75 can not quash it fast enough
> (hope quash is a valid word for that) then different software will help.
> So
> will a softer wastegate spring.
>
> But do you know what the boost level is ?
> Do you know where the fuel - air ratio is ?
> Do you know what the timing values are ?
>
> Mark
> ----- Original Message -----
> From: "chris chambers" <fastscirocco_2000 at yahoo.com>
> To: "Mark Strangways" < Strangconst at rogers.com>; "Joe Pizzimenti"
> <joe.pizzimenti at gmail.com>
> Cc: "Scar" <s-car-list at audifans.com >
> Sent: Monday, March 20, 2006 9:24 PM
> Subject: Re: [s-cars] 3071 turbo & Pastore RS2 code question
>
>
>> Would changing to a different chipset help?
>>
>>
>>
>> --- Mark Strangways <Strangconst at rogers.com> wrote:
>>
>>> I doubt that Bob's wares would allow it to boost past 30 psi.
>>> That would kill a RS2 in short order.
>>> The 3071 can make that boost level with out problems, but with out
>>> good
>>> FMIC or water injection or both there is little point in using that
>>> much
>>> boost as the timing just rolls back and back and back.
>>>
>>> Mark
>>> ----- Original Message -----
>>> From: "Joe Pizzimenti" <joe.pizzimenti at gmail.com>
>>> To: "chris chambers" < fastscirocco_2000 at yahoo.com>
>>> Cc: "Scar" <s-car-list at audifans.com>
>>> Sent: Monday, March 20, 2006 9:15 PM
>>> Subject: Re: [s-cars] 3071 turbo & Pastore RS2 code question
>>>
>>>
>>> > Chris,
>>> > Use a manual boost controller installed in line with the N75 to
>>> turn boost
>>> > down to about 24psi.
>>> >
>>> > It's going past 30?
>>> >
>>> > On 3/20/06, chris chambers < fastscirocco_2000 at yahoo.com> wrote:
>>> >>
>>> >> Gentz,
>>> >>
>>> >> Garret 3071 turbo install is complete, but alas the tech thinks it
>>> is
>>> >> overboosting, we'll know for sure tomorrow when a boost gauge gets
>>> >> installed. I suppose it's a possibility there is a coil too weak
>>> for
>>> >> the new improved boost.
>>> >>
>>> >> Current tech specs of the patient:
>>> >>
>>> >> 93 S4, ~ 248,000 miles
>>> >> RS2 injectors
>>> >> RS2 MAF
>>> >> RS2 Exhaust Manifold
>>> >> Garret 3071 turbo with the 63 and javad's UrS4 lines/maf hose
>>> >> 034motorsport's 1.9 bar wastegate spring
>>> >> Pastore's RS2 code
>>> >>
>>> >> Information I am looking for is twofold:
>>> >>
>>> >> 1. What is the Pastore RS2 code supposed to allow the turbo to
>>> boost
>>> >> to?
>>> >> 2. What is the preffered code for use with the 3071 turbo?
>>> >> 3. Any suggested changes?
>>> >>
>>> >> I plan on taking the stock wastegate spring down to see if that
>>> makes
>>> >> a difference, might as well rule that out.
>>> >>
>>> >>
>>> >> Thanks
>>> >> Chris
>>> >>
>>> >> Make April 15th just another day http://www.fairtax.org
>>> >>
>>> >>
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>>
>>
>> Make April 15th just another day http://www.fairtax.org
>>
>>
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>
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