Supercharger Performance and Engine Performance Parts

Posts Tagged ‘Top End’

There’s a lot of discussion on the forums about weather superchargers have enough top end pull and weather turbochargers are better for high rpm and high speed operation. Usually these comments are made about cars that either lack intercoolers, or are factory equipped with an undersized supercharger that runs out of breathe and becomes less efficient at the top of the rev range.

Here is an example of a great supercharger kit and performance combination for a 2000+ Toyota Celica. The Celica uses an eaton M62 based roots type supercharger geared for a peak of 14.5 psi. To handle this much boost, the factory pistons have been replaced with Mahle 9.0:1 Compression ratio pistons, and the short block has been re-sleeved with Darton sleeves. The compressed air exits the supercharger and is routed through a short path air to water intercooler by Ronin/Toydoctor using a Spearco air to water core. A Johnson 8 gpm water pump circulates the coolant through the air to water core sending it to an Afco dual pass heat exchanger to expel the charge heat.

Fuel is handled by a Walbro 255LPH pump feeding four 530cc/min injectors capable of supporting 353 horsepower easily. The fueling is orchestrated by a greddy e-manage ultimate piggyback fuel and timing controller and a camcon vvtli valve timing controller orchestrate valve events for optimized peak power.

The whole system breathes in through a custom short ram intake utilizing an AEM dry element air filter with custom heat shielding. The system exhales through a custom PPE 4 into 1 header (which is also optimized for higher rpm peaks) and a custom mid-pipe feeding into a Greddy EVO2 catback exhaust.

The result of this power combination is not only increasing wheel horsepower by over 110 wheel horsepower, but also shifts peak power from 7200 rpms all the way upto 8400 rpms.

This talk about centrifugal superchargers lacking top end power delivery is just internet debate as you can see in the dyno graph below this combination of mods does not stop pulling or delivering linear power all the way through to peak rpms.

For more information about this car:

New Celica . Org

Technorati Tags: 300HP, Celica Supercharger Kit, supercharger performance, Top End