So out of curiosity I went for a drive with a AEM Afr gauge and wideband sensor a couple of days ago I was suprised at the readings.
2002 1.7
421 manifold - Hoffman race tube - sportex backbox
Custom ram airbox with ramair* come filter
Tape ECU fitted
STD cams
Idle (lean)17’s
Progressive pull (pretty good) 13-15
Hard acceleration (rich) 10’s!!!
Overrun (very lean) 20+
So definitely some performance to be gained by a decent map.
But this makes me wonder just how much fueling adjustment would actually be needed to run a low pressure turbo
Now I am actually in the process of getting the bits together and building a blown motor but was very surprised at these reading on a stock Tape ECU
On a second note... Turbos
What size/model are people running on the 1.7 ?
As well as PSI and decompression plates if needed and at what PSI
What will the internals take?
Please move if this would be better suited in a different area of the forum.
Many thanks
Tom
2002 1.7
421 manifold - Hoffman race tube - sportex backbox
Custom ram airbox with ramair* come filter
Tape ECU fitted
STD cams
Idle (lean)17’s
Progressive pull (pretty good) 13-15
Hard acceleration (rich) 10’s!!!
Overrun (very lean) 20+
So definitely some performance to be gained by a decent map.
But this makes me wonder just how much fueling adjustment would actually be needed to run a low pressure turbo
Now I am actually in the process of getting the bits together and building a blown motor but was very surprised at these reading on a stock Tape ECU
On a second note... Turbos
What size/model are people running on the 1.7 ?
As well as PSI and decompression plates if needed and at what PSI
What will the internals take?
Please move if this would be better suited in a different area of the forum.
Many thanks
Tom