Taking A Rb25 To The Limits Of The Stock Engine Going fast for cheap RB25det How to make Japanese small displacement engines powerful cheaply. This article will be about the rb25. There is many ways to make this engine fast. It is strong and reliable. We abuse ours daily with no problems. By abuse I mean drag racing, drifting, any other ways we can think of torturing them. Since the rise and fall, of most of the aftermarket Japanese makers, from NISMO to Trust. Many overseas manufactures have learned how to make many of the parts that the Japanese makers claimed were their own.
The Chinese are now making most of their parts, along with pretty much everything else in the world. This brought out a lot of direct from manufacture businesses. If you have any kind of questions regarding where along with the way to work with oferty pracy Dla Nauczycieli, it is possible to e mail us from the website. People started selling stuff for beyond cheap prices on EBAY. Some of this is junk, some of it is from the same manufacture as trust and companies alike. On to how to make this engine fast cheaply, the RB25 in stock form has around 250 ponies, the block can take above 700hp, the pistons above 600, and even the stock head gasket above 500.
So let's get to where the head gasket will not break and stop then. Well you need gas, and a Walboro can deliver. Get you a 255hp pump, be careful though there are Chinese copies out there that will not last longer than a day. They can be had for about 100$. Need something to control all this fuel, a fuel pressure regulator. I don't know if I would trust the copied ones on ebay, I would actually fork out the 70$ for a decent one.
You will need an airflow meter from a twin turbo 300zx they can be used or new, long as it works. A intercooler, for 500hp you should really use a 100mm normal or a higher end cross flow, but since we are cheap, a 300$ kit from ebay is where it is at. Most of them are made in the same manufacture in China, this happens to be the same manufacture as Trust for all you name brand gurus. Your going need something to spray the gas, this and the clutch is where most of your money will be going.
I buy good injectors, the ones off EBAY, if they do work they don't work well. I prefer tomei injectors for the rb25, Nippon Denso. 555 or 740s take your pick they both will support this much power. Get a good clutch period. Twin plates work well and don't have so much clamping force they break everything. A single, I don't care what your friend said, is not going to hold 500hp for long at all. A good clutch will put you back about a grand. On to the turbo setup, there are a lot of choices out there, oferty pracy but let's go with the biggest bang for the buck.
One word HOLSET, these are great turbos available at crack head prices. A h1e or a hx40, with between a 18-21cm exhaust will get you there. Manifold, well just look here at the link below 400$ you have an exhaust manifold that won't crack.