Mazda RX7 Series 5

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Mazda 121 DB, B5 DOHC + Turbo

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The principal Adaptronic test vehicle (the Mazda 121) has now been turbocharged. The turbocharger conversion was performed by TX Motorsports in Toronto (NSW). The parts were supplied by Adaptronic and fitted by TX. TX also made the exhaust manifold.

The engine is a Jap-import Mazda B5 DOHC engine. The turbocharger is a T2 item, which is quite small. The turbo version retains the 2" exhaust from the NA 1.5L conversion. These two items combined seem to be limiting the power in the higher rev range.

The engine runs 400cc/minute injectors (ex Mazda F2-turbo engine). The factory fuel pump (from the 1.3L) and fuel pressure regulator (from the 1.5L) seem to be handling the increased fuel flow. The ignition system has been upgraded with twin coil packs running a wasted spark configuration, with a 0.8mm plug gap.

A narrowband heated oxygen sensor sits on the dump pipe. Currently, the boost is controlled by the wastegate only.

Dyno charts are shown on the left. Click for larger image.

At her first outing in turbocharged form (at WSID, 2005-10-05), the best time she managed was 15.191 seconds. There was a fair amount of wheelspin which is still to be controlled. However shes going to go back with a larger exhaust and some other little additions and we will see what time she gets.

 

 

 

 

Mazda Familia

Email Adaptronic for more information regarding this installation/tune

 

 

Mazda MX-5, B6 DOHC + Turbo

Email Adaptronic for more information regarding this installation/tune

 

Mazda RX7 Series 5

Email Adaptronic for more information regarding this installation/tune

 

 

 

 

Mazda 121 DB, B5 DOHC + Turbo

Email Adaptronic for more information regarding this installation/tune

The principal Adaptronic test vehicle (the Mazda 121) has now been turbocharged. The turbocharger conversion was performed by TX Motorsports in Toronto (NSW). The parts were supplied by Adaptronic and fitted by TX. TX also made the exhaust manifold.

The engine is a Jap-import Mazda B5 DOHC engine. The turbocharger is a T2 item, which is quite small. The turbo version retains the 2" exhaust from the NA 1.5L conversion. These two items combined seem to be limiting the power in the higher rev range.

The engine runs 400cc/minute injectors (ex Mazda F2-turbo engine). The factory fuel pump (from the 1.3L) and fuel pressure regulator (from the 1.5L) seem to be handling the increased fuel flow. The ignition system has been upgraded with twin coil packs running a wasted spark configuration, with a 0.8mm plug gap.

A narrowband heated oxygen sensor sits on the dump pipe. Currently, the boost is controlled by the wastegate only.

Dyno charts are shown on the left. Click for larger image.

At her first outing in turbocharged form (at WSID, 2005-10-05), the best time she managed was 15.191 seconds. There was a fair amount of wheelspin which is still to be controlled. However shes going to go back with a larger exhaust and some other little additions and we will see what time she gets.

 

 

 

 

Mazda Familia

Email Adaptronic for more information regarding this installation/tune

 

 

Mazda MX-5, B6 DOHC + Turbo

Email Adaptronic for more information regarding this installation/tune