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tj930 tj930 is offline
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Join Date: Jun 2008
Location: England
Posts: 301
Originally Posted by Groovie Ghoulie View Post
Yes, most guys do the "stage 1" without any real tuning necessary. K27 HF turbo
K27-1111, K27-7006, K27-7200, K27-7200-'S' turbos are 'stage 1', but HyFlow K27s ('HF' and 'HFS'), K27/K29 hybrids, K29s and GT35s blow more air than stock CIS can supply fuel for...

I asked Kevin (the guy who made the K27 HFS, as sold by IA) about fitting a HyFlow on reduced boost pressure and stock Euro FuelHead - "NO!!" was his strongly-worded, simple advice!

As for answering the question about how it's all done without a computer, the WUR (Warm-Up Regulator) simply supplies fuel enrichment according to the Boost Pressure and pays no attention to volume of air being pumped into the cylinders, this is why certain AWUR (Adjustable WUR) and DWUR (Digital WUR) systems have become popular in recent times for those not going the whole hog with EFI.
Old 07-19-2010, 10:06 AM
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