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Miami Rotary 13B Turbo GSL-SE Turbo II


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The car is street driving and weekend warrior! Main fuel is Ethanol E85... 
Car was remote tune by David Heerdegen from Dtechmotorsport.

Spec on the car: 
Mazda RX7 1985 GSL-SE 
RX7 Turbo II S5 engine semi-peripheral 
Turbo II S5 transmission 
RX7 FD upper intake manifold 
2 1000cc primaries injectors ( high impedance) 
4 2000cc secondary injectors (high impedance) 
2 Walbro 416 fuel pump for E85 
Fuel line dash 8 feed and dash 6 return 
Aromotive fuel press regulator 
Borg Warner SXE 369 Turbo with .91 back housing 
3.5 inch down pipe and full exhaust system 
Turbo Smart 4 port boost valve 
Ford Taurus E Fan with 130 alternator 
AEM Wideband pre-turbo sensors 
Vi-Pec ECU V88 
Flex fuel 
Oil press sensor 
EGT sensor in both banks 
Fuel press sensor 
AEM smart ignition coils 
Full Function Engineering trigger wheel with digital hall sensor 
Big front mount inter cooler .. 
Race pack dash with Vi-Pec can cable







test fit exaust manifold.JPG





Hard work pays off …. Thanks to Eric Gerardo Monzon Rotarywerks great engine built and my tuner David Heerdegen from Dtechmotorsport. 
We have a very reliable (7 seconds 1/8 mile 10’s seconds 1/4 mile mile car) with stock OEM GSL-SE diff and stock OEM 14's inch rims with 205/50/14 drag radial…. 
The car is only running 18 psi of boost do to the stock diff..

Mission accomplished for stage 1..... More to come..... Having a 30 year old street car that gives you this type off excitement and at the same time is a beauty and fun to drive on the street is priceless.....


This engine has more than 30 dyno passes at 500whp+ and hundreds of street pulls with the tune on the Vipec V88 and has never miss a beat... This engine are good as the tuner mapping them and the Link/Vipec ECU does a great job controlling a rotary...


Quick video on dave doing his magic..


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  • 2 weeks later...

We did some tuning on Tuesday and fix some boost control issue we had with some vacuum hoses..

Now we got everything working great .. look at the boost target and boost line ... Yo can also see my 3 wide bands set up.. Sensor on each runner and one in the down pipe (white line)....

Thank to Dave from  Dtech Motorsport from New Zealand for his great remote tune like always...

Car is running Strong.. 251 KPA about 22 psi boost ..  540 whp on a mustang dyno (heart braker dyno)..





Edited by AXA
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