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My T4


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  • 2 weeks later...

Don't know yet. Was mapping sucessfuly up to the 1.5 bar, @1 bar 340HP, @1.5 bar 420HP and after that, bearing with sensor on dyno rollers went south. No matter how much more boost and/or ignition I added, was picking up 2-3HP only. Even at 2b dyno wasn't measure more than 440HP even if it was quite obviously that engine was reving much faster from 5-7k rpm (much more power). We tried another car with 650HP mapped a few days ago and it also couldn't "make" more than 450HP.

A few clips of having lot's of fun this weekend :).

Best ET @1/4 mile 12,2 sec with 210 km/h trap speed :).

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  • 4 weeks later...
  • 1 month later...

You probably missed this post: http://www.30forty50...post__p__190785

Having 1150 cc/min injectors at the moment. They supply plenty of pump gas, injectors are opened below 80% of time on 2.4b at 8k rpm. However, they are at 100% with E50 fuel at the same boost level. Before buying something even bigger, might try raising base fuel pressure for another 0,5 bar (currently set to 4 bar), but not sure how will my Bosch 044 fuel pump like that :D. Still, not planning boosting much more, 2.6b with 1.06 A/R turbine housing should be near the turbo limit I believe.

Also, might try to locate and buy B4204S2 head, tempted to rev higher than 8k and using VVT to help lower and mid revs torque.

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