My c6z im planning on shifting around 7800, and just cant decide on ditching the ac and getting a real dry sump in this. Id be lying if I said I wasn't chasing a horsepower number, but I just wanna do what makes sense.

if I went katech blue pump, It will help control aeration but not eliminate it. Cost a touch under 900

if I went aviaid, its only like 2000 more, tons of little benefits here, big benefit of no foam at all, and should gain what I guess could be 10 to 12 rwhp at peak from this. But I lose ac. Really need some input here

 

I would never give up the A/C. Car loses major value with that mod. Becomes pretty much “race car” at that moment. Especially not for 15-20 hp. You’ll never feel 15-20 on the street.

 

Im 50 percent about th hp gains, and 50 percent about the other gains from it. In theory I honestly think an upgraded pump would be enough. Since its a dry sump hybrid system, it does have some benefits over a standard short crank wet sump. If I was trying to decide to build a short crank wet sump or a long snout setup the gains would be more significant

 

I agree. I’d go Katech blue, keep the A/C and not look back. Have Tony work his magic on the blue pump. With a ported pump cavitation is “pretty much” gone.

 

If you track the car (road course or autox) enough to consider track use more important than street use, go for it. Otherwise, it’s a bit silly.

OTOH, I pulled the A/C out of my LS swapped Miata to lose the weight off the nose and improve the handling … so you wouldn’t be the only silly guy on here.

If you’re really only chasing a big dyno number, think harder about why you’d give a **** about what anybody else thinks. 🙂

 

A/C isn't as essential in the northern states as it is in the south...

 

really comes in handy in the event its raining out and ur stuck

 

lol dont tempt me, since its an na aluminum build removing the ac would put me at 50 50 weight dustribution

 

Is there room to do a high mount AC bracket? That's pretty common on LS swapped cars that have clearance problems with K-member.

 

this is a c6z

 

Yeah, so is there room or not?

 

You could go with high mount Holley brackets…same as GM except a/c is high on pass side and then throw a dry sump setup at it. I run the Holley setup and it’s identical to the GM stuff. This would require a new set of ac lines but that’s the easy part. So…YES.

 

I have a couple of road race cars that run both setups, one kept the ac and the other ones didn’t, I will say one thing. The one that has AC is a utter nightmare to work on!! -16 scavenge lines are large lol

 

yea trying to avoid this. I think for now im goona run a crank pump and see how it goes. Adding ac back later would be a pain vs removing it later

 

If you just want the horsepower you can put a high mount vacuum pump where people are suggesting you put the AC compressor.

Running vacuum (dry sump or vacuum pump) is really only beneficial when you also run the appropriate low tension ring pack that much more significantly reduces friction in the rotating assembly. Without the right rings you're looking at a much smaller horsepower gain.

 

correct about the rings, Im sure I can make something work, but im also not trying to clutter the engine bay. Which meant ditching the ac.....i know your suggestions are good alternatives but tucking a pump down where the ac would look better and cleaner down there