such as "What are the power levels?", "How is the response?", and"What are
the differences?" are common. We decided to put together a little tech article that
will hopefully answer those questions.
TOMEI have spent a great amount of R&D on the new ARMS turbos. The goal was to
design a new set of turbos that will improve torque, response, and usable power,
all at a great price. Specifically talking about the M8270 and M7960 turbo, these
two are the newest brothers to the family. Let's take a look at the new specs.
As you can tell, everything about the ARMS turbos are larger. It has both bigger
compressor and turbine wheels, giving plenty of room for high flow breathing and
reduced back pressure. So, how do TOMEI find out if these numbers mean anything?
Dyno test, of course!
The test mule is not your regular SR20DET engine. The purpose here is to extract
the maximum horsepower out of these turbos. Here is the spec sheet:
How's the response and power, you asked? Let's move onto the nitty gritty.
NOTE: The original data has been converted from PS to HP and kg*m to lb*ft in these easy-to-read graphs
The M8270 is made for big horsepower that's capable up to 450+ HP. From the graph, you can see
that it starts to pick up from around 3700 RPM and continues to pull all the way to redline.
Take a note at the torque. There is plenty of torque from 4500 to 6000 RPM. High speed drifters
and freeway lurkers will definitely enjoy this type of power-band. The type that keeps on giving.
The M7960 is designed for low to mid range torque. It's capable of 400+ HP. Take a look at that
purple curve. There's a great amount of area under the curve. That will give you plenty of bottom-end
response. The horsepower is quite linear, giving you great control over traction of the car and
response of the engine. This type of power-band is great for auto-x and street/track use.
For durability and reduced costs, The M8270 and M7960 adopted a dual journal bearings system.
Journal bearings are normally slower than ball bearings, but for reliability and costs, journal
bearings cannot be beat. The compressor wheel dimensions were optimized to increase efficiency
and usable power. The turbine wheel was made to resist high exhaust heat and extract maximum
exhaust energy. The design of the wheels will neglect the difference in journal bearings and
ball bearings.
Don't wait any longer! There will only be a limited batch available during the first shipment. After that,
there will be a long wait time for the second round. Get in line and pre-order yours now! For ordering
information, please follow the two links below.
ARMS M8270 Turbo Kit (450+ HP) - $1251.95 - Pre-Order Now!
ARMS M7960 Turbo Kit (400+ HP) - $1251.95 - Pre-Order Now!
We are taking Pre-Orders Now! The pre-order ends August 6th!! Also, Tomei USA will not carry any stock in the USA. PM for a Special Nico Club Discount Pricing
Thanks,
FRSport.com Team
AIM: FRSportSales
Email: [email protected]