[urq] speaking of 28psi

Mike Sylvester mike at urq20v.com
Tue May 18 07:11:31 PDT 2010


It is the possible misfires that concern me.
Are they inevitable on the 3B with that much boost?

I haven't brought it to red line since I fixed the wastegate spring.
I think Brandon is running 24psi.

I've considered the c-o-p solution as well.
I have an AAN ECU and wiring harness, but I really didn't want to have
to get into that so soon.
I've spent so much time on this project, I just want to drive it for a
while before I take it down again.
Of course, I don't want to blow it up in the mean time.

Mike

www.urq20v.com

> -------- Original Message --------
> Subject: Re: [urq] speaking of 28psi
> From: mike at quattro.ca
> Date: Tue, May 18, 2010 9:57 am
> To: "Mike Sylvester" <mike at urq20v.com>
> Cc: urq at audifans.com
> 
> 
> Mike,
> As I understand the important thing is to do the rods which you have done,
> and make sure you never get mis fires. I believe there is also issues with
> getting solid continuous sparks from the dizzy at 28psi, which coil per plug
> helps with. Are you carrying 28psi to red line?
> Brandon has been running a high boost 3B setup for many years and has 
> been contemplating going coil-on-plug.
> cheers, Mike
> > 
> > This is the hardware: 
> > 
> > RS2 turbo 
> > RS2 exhaust manifold (extrude honed) 
> > Head is extrude honed. 
> > RS2 exhaust cam 
> > RS2 injectors 
> > RS2 MAF 
> > Pauter rods 
> > Adjustable fuel pressure regulator 
> > New distributor with metal gear and correct small tip rotor 
> > Porsche 951 intercooler 
> > 
> > 
> > The 28psi is not a spike. I haven't stayed there long, but I think it 
> > will hold there. 
> > 
> > Mike 
> > 
> > www.urq20v.com 
> > 
> >> -------- Original Message -------- 
> >> Subject: Re: [urq] speaking of 28psi 
> >> From: Ingo Rautenberg 
> >> Date: Tue, May 18, 2010 9:17 am 
> >> To: dgraber460 at aol.com 
> >> Cc: urq at audifans.com, mike at urq20v.com 
> >> 
> >> 
> >> Ok. I'll bite. 28 psi? Is that spiking there with pullback or extended 
> >> bout? 
> >> Better have lots of mods - especially exhaust manifold lest you like 
> >> burning 
> >> valves. Highest boost I ran in my 200q20v with Hoppen chipped box was 25 
> >> psi 
> >> - yeeeha! But that k24 didn't like that so much and the oil seal went 
> >> not 
> >> too long after... 
> >> 
> >> Ingo 
> >> 
> >> On May 18, 2010 8:59 AM, wrote: 
> >> 
> >> 
> >> I've been told by experts I trust that the 3B will support 18 PSI very 
> >> well 
> >> and that 20 will take you to the edge of the abyss, but may last if not 
> >> pushed as in a track scenario. I would guess 28 would overstress vital 
> >> internal engine components. 
> >> Others will probably post that they are running "xx" PSI for years with 
> >> no 
> >> problems, but I _personally_ I wouldn't go over 20. 
> >> 
> >> 
> >> Dennis 
> >> Denver 
> >> 
> >> 
> >> 
> >> -----Original Message----- 
> >> From: Mike Sylvester 
> >> To: urq Audifans <urq at audifans.c... >> 
> >> Can you safely run 28psi on a 3B? 
> >> 
> >> s anyone doing it and keeping the distributor? 
> >> I'm curious why MTM would make a 3B chipset that will... 
> >> udifans urq mailing list 
> >> 
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> >> 
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> > 
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