Air To Water | Supercharger Performance and Engine Performance Parts

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A Supercharged LS7 crate engine

July 21st, 2010 |

Author: admin

Hot Rod magazine brings us a no nonsense buildup of a street supercharged LS7 engine.

The engine features the following modifications:

Custom eaton TVS supercharger Setup
Cogged 4” wide belt drive system
13psi boost pressure setting
90mm custom fabricated intake system and throttle body
Integrated intake manifold with custom air to water intercooler core
Rebuild engine with billet connecting rods
Forged pistons with a lower 9:1 compression ratio
Under piston oil squirters custom tapped into the main oil feed
Custom split pattern camshaft
- Lift: 0.620”
- duration 220* / 235* with 118* LSA
Wet sump oiling system conversion using OEM oil pump and oil pan
Return style fuel system conversion with 65lb/hr injectors
Custom ECU reflash peaking out at 19* total timing
Untouched factory CNC’d cylinder heads!

The results of these straight forward modifications are an impressive 811 crank horsepower @ 6300 rpms with a respectible 824ft.lbs of torque @ 3900 rpms.. what’s even more impressive is that these figures were achieved with the engine breathing through the factory exhaust manifolds…

What’s also noteworthy here is that if you’ve been reading up with the blog then you will see that the piston design chose by Harrop is very similar to the design I described in a recent article :

Introduction to Piston Design for forced induction engines

The piston used by Harrop features:

Thicker piston crown for increased strength and a lowered primary ring for reduced ring operating temperature
Thermal barrier top coating for better combustion efficiency with lower timing numbers as well as less localized heat transfer on the piston crown
Dished piston (for lower compression) but with a raised outer ring for better squish
Low friction skirt coating
A forced side relief design with a longer skirt in the direction of rotation for stability and a shorter skirt in the perpendicular direction for reduced weight and friction
Lastly: reinforced pin bosses for better load carrying potential

Read the full article on Hot Rod here

Technorati Tags: Air to Water, crate motor, Eaton TVS, LS7, supercharger performance

Posted in Aftermarket Supercharger Performance |

Tags: Air to Water, crate motor, Eaton TVS, LS7, supercharger performance |

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A beautiful example of a Hemi supercharger

May 27th, 2009 |

Author: admin

Here is a beautiful example of a Hemi Supercharger setup in a 1972 Plymouth Cuda. The car is featured on mopar muscle magazine and is a gutted and tubbed ’street’ car powered by a 6.1 liter Hemi engine. The nicest touch on the car is the use of a water to air intercooler to cool the inlet charge, which gives a shorter route between the supercharger and the engine. This aplifies throttle response because the air has less distance to travel between mashing the big pedal and reaching the combustion chamber.

The Paxton Centrifugal Supercharger feeding the hungry 6.1 Liter monster.

The setup:

Chrysler 6.1 liter Hemi
Paxton supercharger @ 10psi of boost.
Custom air to water intercooler setup.
AEM engine management system with dual fuel maps (for pump gas and racing fuel).
TTI Long tube headers
3″ Dual exhaust
The 518 RWHP was produced with premium unleaded.