What do you need to know about the RB25 engine?
With the help of TMS Motorsport we are pleased to provide an all you need to know guide to tuning the popular RB25 engine. This has to rate as one of best engines to base a tuning project on, with massive tolerance of power gains, and many tuning part options.
Is the Nissan RB25DET still in OEM form?
Engine still in OEM form, just the usual RB bolt ons, but the owner will be looking forge the engine for long term reliability. The stock RB25DET OEM ECU has been binned in favour for something different from the norm. A Megasquirt ECU system is now keeping things in check.
What’s the difference between RB20DET and RB25DET?
In contrast to RB25DET, RB25DE (S1) had reinforced connecting rods, new pistons (compression ratio is 8.5), 45V1 turbocharger. The turbocharger was larger than 16V of RB20DET.
How many horsepower does a Nissan Skyline RB25DET have?
RB25DE camshafts: duration 240/240 deg, lift 7.8/7.8 mm. Thanks to RB25DE the power increased to 190 HP at 6,400 RPM. The engine was applied for Nissan Skyline R33. Since 1995, ignition system, MAF, crankshaft position sensor and ECU were modified.
What’s the boost pressure on a Nissan RB25DET?
Maximal boost pressure on RB25DET reached 7 psi (0.5 bar). Also that version was equipped with variable valve timing system NVCS on the intake side, fuel injector 370 cc/min, and oil jets were installed in cylinder block.
What kind of ECU does a Nissan RB25DET use?
The stock RB25DET OEM ECU has been binned in favour for something different from the norm. A Megasquirt ECU system is now keeping things in check. Great power from a well looked after factory Nissan RB25DET with PLENTY of potential once the engine is forged and then the boost on the Holset HX40 can be really wound up.
In contrast to RB25DET, RB25DE (S1) had reinforced connecting rods, new pistons (compression ratio is 8.5), 45V1 turbocharger. The turbocharger was larger than 16V of RB20DET.
Are there any problems with the RB25 engine?
RB25 were discontinued in 2002 and instead, VQ25DE/DET appeared. Similar to many legendary engines from the 90-s, RB series are highly reliable and durable. Not vainly they are the most popular engines in the world. They do not have any design failures or serious problems. Of course, some insignificant problems may still happen.