ImprovedRacing

As we all know, the factory C6 Z06 semi-dry sump setup tends to starve for oil in track conditions at high lateral G's.

One of the reasons this happens is because under high lateral G's, the pickup tube in the oil pan gets uncovered and starts sucking up air. But that's okay, because that oil is being pumped to the dry sump reservoir, right? Well the problem is the OEM setup was designed to work with a small reservoir of oil in the pan. We suspect that when the scavenge stage pump starts sucking air, it aerates the oil, filling the dry sump tank with foamy oil. If the pressure stage sucks up foamy oil, you get drops in engine oil pressure.

GM tried to address this in later model years by adding a cyclonic air/oil separator to the dry sump tank, as well as increasing the tank capacity. This helps reduce aerated oil in the tank, but it still appears to be an issue.

So we've recently released a couple of products to help combat these oil starvation issues.

Bolt-in Trap Door Oil Pan Baffle for Z6 Z06 Dry Sump Pan

This oil pan baffle bolts right into the factory pan using existing mounting points. There is no need to drill holes in your oil pan or modify it in any way. The directional trap doors keep oil around the pickup tube to reduce oil aeration. The upper baffle plate is designed to prevent slosh and help funnel oil towards the pickup tube as well.

Part number: EGM-203

Learn more here: http://www.improvedracing.com/oil-pa...fle-p-675.html



Shown installed in the factory dry sump oil pan.



Underside of baffle with trap doors visible.

Crank Scraper and Windage Tray Kit for C6 Z06

Another way to help reduce oil starvation is to accelerate the return of the oil to the pan. There is a lot of oil trapped in the windage created by the rotating assembly. The crank scraper very closely contours the entire rotating assembly to essentially "scrape" the oil off the crankshaft and rods, returning more oil to the bottom of the pan.

We also designed the scrapers and windage trays to have more drainage slots and louvers that funnel and direct the oil removed down into the pan without allowing it to become trapped in the windage again.

As our new crank scrapers are billet machined aluminum and now feature integrated windage trays, they are completely bolt-on and replace the factory windage tray. The entire assembly is also 10% lighter 70% stronger than the factory windage tray.

We currently have a scraper and windage tray kit available for the factory bottom end C6 Z06 with ARP main cap studs installed. If you don't already have ARP main studs, we have a special deal where you can purchase our kit along with the ARP main studs and get a $40 discount.

Our customers have been seeing increases of up to 9 RWHP after adding our crank scraper kit. This is because the excess oil removed from the rotating assembly essentially lightens the crankshaft, freeing up horsepower that no longer needs to get used up to spin that excess mass.

Part number: EGM-740AC

More info here: http://www.improvedracing.com/crank-...kit-p-648.html



Shown installed on an LS block.



Underside of assembly shows the crank scraper section. Windage tray section is removable to ease installation and scraper alignment. Also note the machined drainage slots create low points to funnel oil to the drains and accelerate drain back.

If anyone has any questions, please feel free to post up.

Thanks!

-Michael