Originally Posted by
caprizetec170
Just Looking for help from more knowledgeable people on here,
Just got my zetec turbo capri back from mapping,
And its shit
it makes 315bhp but at 6900 and 14psi and's gutless low down
spec is st170 engine JE pistons arrow rods, 9;1 compression(suspect may be less) custom inlet (homemade)
homemade tubular exhaust manifold
Garrett GT2871R with a TiAL vband .63 housing
would fitting smaller turbine housing or shorter exhaust manifold shift spool and power lower down the Rev range,
Or any other suggestions would be great
Some detail might help.
When does it start to spool, what boost, any graphs or logs etc etc ? What are you using for boost control, how is this configured ? What is tuning like during spool etc ?
Surely the tuner had some input ?