Customer cases | JSR-engineering

Dyno tests - Testimonials - Customers cars

Mush faster throttle responce with the JSR ITBs.

Now the car just picks up and goes!

Martin

Porsche 3.2

Specifications:

Stock engine
Headers and sports exhaust

JSR small bore ITBs: 270 Hp

The JSR ITBs was easy to install and setup.

They really help bring out the power of this engine.

Morten

Porsche 2.7

Specifications:

JSR small bore ITBs
Compression ratio 10.5:1
Dual coil-on-plug
Sports camshaft
SSI exhaust

Before:

Standard 2.7 Carerra US: 175 Hp

Now:

271 Hp

Same dyno

Both the power and torque improved massively with the change to JSR ITBs

and they sound amazing above 4.000 rpm...

Lars

Porsche 3.0

Specifications:

Compression ratio 10.5:1
Dual plugs
Sports camshaft
SSI exhaust

Before:

Triumph ITBs: 243 Hp

Now:

JSR small bore ITBs: 265 Hp

No other changes, same dyno

Porsche 3.0

Specifications:

Stock engine
Headers and sports exhaust

Before:

Triumph ITBs: 213 Hp

Now:

JSR small bore ITBs: 219 Hp

Porsche 3.8

Specifications:

JSR medium bore ITBs
3.6 enlarged to 3.8 Liters
Compresion ratio 12.5:1
Schrick cams
Dual plugs
William Knight headers and Dynomax exhaust.

Porsche 3.5

Specifications:

JSR medium bore ITBs
3.0 enlarged to 3.45 Liters
3.2 cylinder heads

Porsche 3.0

Specifications:

JSR small bore ITBs
10,5 compression ratio
964 cam
Dual coil-on-plug

What a quality product, a piece of art just to look at.

Nikolaj