Pontiac Crankcase Evacuation System Kits

Description

For BIG inch HIGH HORSEPOWER Pontiac builds oil control is essential!  Minimizing crankcase pressure not only prevents blowing your dipstick out but it can translate into noticeable power gains.  We have extensively tested a wide variety of pumps using high quality pieces from both Moroso and Star Machine!

Tin Indian Performance provides Complete Evac Pump Kits that effectively reduce crankcase pressure!   Due to the custom nature of these kits it is best to email us at sales_team@tinindianperformance.com with the following information:

• Engine size (cubic inch)
• Peak engine rpm
• Engine use (street, street/strip, race)
• Estimated horsepower and torque
• Fuel being used (pump gas, race gas, alky)

Tin Indian offers comprehensive solutions to evacuation issues with application-specific kits that are easy to install.

Frequently asked questions regarding Evacuation Systems:

Q:        Why don’t you guys sell a cheaper system with a Ford style smog pump?

A:         You get what you pay for!  The Ford style pumps don’t pull near the vacuum nor do they last as long as the Star Machine or Moroso units.

Q:        How fast should I spin the vacuum pump?

A:        Optimum speed is approximately 50% of the engine speed. (2 : 1 ratio).  For applications below 8,000 RPM we recommend running the pump at 66 % ( 1.6 : 1 ratio).  Using the 3 inch pulley provided with the standard Tin Indian Performance Crank Mandrel System will drive a vacuum pump with a 5 inch pulley at 60%.  The 4 inch mandrel pulley would drive the pump at 80%.

Q:        Where should I plum the vacuum pump?

A:         We recommend attaching the pump to the front of the valve cover via a threaded bung.  Our bung baffle helps with pulling excessive oil out as well.  This should provide you with the best vacuum and best lubrication of your pump.  The outlet of the pump should be attached to a catch can that can be periodically drained.  We do not recommend attaching your vacuum pump outlet to your dry sump tank or to an exhaust collector.

Q:        How much vacuum do I need?

A:        Most engine builders concur that maximum power gains are noticed in the 13” to 16” on a wet sump application.  Street applications should be less and we normally recommend that you drive the pump a bit slower and have it pop off at a lower max as well – approximately 9″ of vac when driving around.  Truth be told, we have pulled as much as 21″ on a dry sump system!!!  YES, this has GOOD power implications!!