Year: 2004
Mileage: installed 9200 / presently 15,000
Significant mods (your wiper blades dont count): S3R w/toys w/the NGK plugs. gap = .028, mopar cat back, AEM intake.
Kit Maker/Type: SnowPerformance / BoostCooler Stage 2
Nozzle size(s)/Location: 375 / installed in cold side pipe of intercooler
On point/ramp % / Full point: 4psi/ '''% / 25psi
Fuel octane/additive used: ( specify summer/winter blend): 92 - 93 / none / both
Environment(Temps/Altitudes): 3 seasons in NewEngland. Spring, summer, fall. From one extreme to the other...
Max Pump cutout; 150 psi
Check valve / Sol (location); 45psi cracking check valve located about 12 inches upstream from the nozzle.
Results summary: I use 40/60 Methanol / water or 50/50. I have also used -20 deg cheap windshield washer fluid (methanol based). Never had any problems holding HOM even while I was road tuning the ramp for a week or so. I have never use isopropal alcohol except to remove tree sap from my sunroof.
Below 92 octain fuel and I
can not hold HOM in the top of 3rd or 4th
Update... 5/2/07 mileage now 25,000
This season I added a ED beast intercooler, DCR mod on the S3 turbo and manifold and maxxfab down pipe. With the current WI settings the car wil not hold HOM reliably to redline in 3rd or 4th. Giong to try the Coolingmist S-HSV, Varicool, 2 CM nozzles, and cooler plugs. Will post the results...
Update 5/12/07
No problem now. holds HOM just fine.
Ended up using two nozzles a M5 and a M2. The M5 is in the exit/cold side pipe of the intercooler. The M2 is in the up-pipe just before the intake air temp sensor. Currently using the prototype S-HSV set-up from coolingmist. soon to be replaced by the production unit.
