Posted By: Anonymous
Advice on 1st RR session - *GRAPH ADDED* - 10/12/2007 17:34
Hi all. Recently had my 20VT on the rollers at weston performance, would like a bit of advice really if poss. The car is standard with exception of a GTech-1, PRV, pace smic and a K+N panel in a drilled 'box. Half my fuel was sainsburys 95ron , half was esso 97 ron.
The main reason i had it on the rollers was to check fuelling - it was ever so slightly lean coming on boost but the operator said it was nothing to worry about. I thought the boost was at 1.2 bar but my gauge must be crap as it was actually 1.1. This tailed right off to 0.65 by the redline though, this seems low to me? Boost leak somewhere? The boost also spiked on the second run so a new prv is in order i'd say.
The car made a peak of 243.2bhp - does this seem about right for a 1.1bar GTech'd 20vt? Torque peaked as it came on boost at just over 250ft/lb and held well until about 5000rpm where it started to tail off to about 175lb/ft by the redline. Normal?
Im quite happy with it i think, although it would be nice to see over 250hp really. Would 1.2 bar see me there (with decent fuel? )?
I'll get the graph up tonight. TIA.
Toby.
GRAPH ADDED; http://img.photobucket.com/albums/v489/tob4312/RRplot1.jpg
The main reason i had it on the rollers was to check fuelling - it was ever so slightly lean coming on boost but the operator said it was nothing to worry about. I thought the boost was at 1.2 bar but my gauge must be crap as it was actually 1.1. This tailed right off to 0.65 by the redline though, this seems low to me? Boost leak somewhere? The boost also spiked on the second run so a new prv is in order i'd say.
The car made a peak of 243.2bhp - does this seem about right for a 1.1bar GTech'd 20vt? Torque peaked as it came on boost at just over 250ft/lb and held well until about 5000rpm where it started to tail off to about 175lb/ft by the redline. Normal?
Im quite happy with it i think, although it would be nice to see over 250hp really. Would 1.2 bar see me there (with decent fuel? )?
I'll get the graph up tonight. TIA.
Toby.
GRAPH ADDED; http://img.photobucket.com/albums/v489/tob4312/RRplot1.jpg