- Mar 11th. 2013
- By CourtenaySport
Further Development of this car has seen us change the turbo to a Garret GTx3076R along with a custom made 100mm diameter inlet pipe.
Target BHP was something on the right side of 500 BHP. With 99 octane UK pump fuel we saw 525 BHP but this was on the limit of our UK fuel quality; Stephan in Germany had seen well over 550 BHP with this turbo on 102 ocatane pump fuel available to them.
At this point we thought it might be fun to add some methanol to bring the octane value up; a stainless tank was fabricated and installed with an Aquamist pump in the spare wheel well, to sit alongside the already installed swirl pot and Pierburg pump. The spare wheel well has had a number of vents installed and a laser cut acrylic panel made and installed to protect the contents and seal the wheel well off from the car’s interior. With further mapping mostly based around a much more efficient timing curve we saw the power rise to a peak of 568 BHP and finally settled with a comfortable figure of 559 BHP.
Final testing on the road proved very interesting and memorable for Mark R when he found some additional work was needed to stop the meth from puddling in the inlet manifold, which occurred on part throttle when the throttle was being feathered due to wheel spin! Fortunately the functionality and adjustability of the Aquamist ECU made this quite straight forward to achieve.
Engine Spec features numerous Courtenay core products as follows:
Ported Cylinder head
Klasen Inlet Manifold
V Band Cast Manifold
Tial External Wastegate
Custom 3” front pipe mated to a Piper 3” exhaust System
GTx3076R Turbo with Tial Exhaust Housing & 100mm inlet
Courtenay Water Radiator
Paddle Clutch plate
Reworked Sach’s Uprated Clutch Cover
To name but a few items…
Hopefully this should keep the ever power hungry Wayne T content for a while. A thoroughly enjoyable conversion to do cheers Wayne…