13-04-2012, 01:54 PM
Haha 
It was a bit of a verbal ejaculation hehe.
Show me a good stage 3 HDi and I'll happily eat my words though
If the hardware isn't right, the software will never work right. It takes a lot of work and time to get it right.
Only stg3 cars where significant time, effort and thus money have been invested, do things work properly.
Ie, Pete's VNT HDi seems to do everything a normal HDi does, just 2 X as much... no weird behaviours, bad idle, just solid torque and power all over.
For all the fannying around, Bryn's car made 173bhp on his hybrid, fmic and exhaust mods alone all those years back. It was on a remap bodged to run meth too, not an FMIC... if he'd even bothered to exhaust (no pun intended) the potential that set up had it'd have probably made a good solid 275lbft and 180bhp, simply a hybrid turbo on an otherwise usual FMIC 306 HDi. The power was a bit further up the revs.
But get a GOOD hybrid turbo on there and you'd probably have 180bhp combined with more like 300lbft and near the driveability of a K03 HDi90!
Unfortunately it seems there has been a black hole of people exploring that area of tuning... always wanting to buy a camshaft or fit a light flywheel or a fancy manifold or new con-rods... anything but the next logical step of hardware improvements to alleviate the obvious bottleneck of the standard car... the ducks arse turbine outlet!
XUD's are a different beast though. Tuning them is very much a turn a screw and see. Grind something away and see. Very fun in some ways, and almost more intuitive than HDi tuning beyond a certain point!
Dave
It was a bit of a verbal ejaculation hehe.
Show me a good stage 3 HDi and I'll happily eat my words though
If the hardware isn't right, the software will never work right. It takes a lot of work and time to get it right.
Only stg3 cars where significant time, effort and thus money have been invested, do things work properly.
Ie, Pete's VNT HDi seems to do everything a normal HDi does, just 2 X as much... no weird behaviours, bad idle, just solid torque and power all over.
For all the fannying around, Bryn's car made 173bhp on his hybrid, fmic and exhaust mods alone all those years back. It was on a remap bodged to run meth too, not an FMIC... if he'd even bothered to exhaust (no pun intended) the potential that set up had it'd have probably made a good solid 275lbft and 180bhp, simply a hybrid turbo on an otherwise usual FMIC 306 HDi. The power was a bit further up the revs.
But get a GOOD hybrid turbo on there and you'd probably have 180bhp combined with more like 300lbft and near the driveability of a K03 HDi90!
Unfortunately it seems there has been a black hole of people exploring that area of tuning... always wanting to buy a camshaft or fit a light flywheel or a fancy manifold or new con-rods... anything but the next logical step of hardware improvements to alleviate the obvious bottleneck of the standard car... the ducks arse turbine outlet!
XUD's are a different beast though. Tuning them is very much a turn a screw and see. Grind something away and see. Very fun in some ways, and almost more intuitive than HDi tuning beyond a certain point!
Dave