I’m wanting to go with a dry sump setup because I do track. I’ve got an LS3 that I’m looking to decrease the stroke to 3.9. With an ls7 crank is what I was thinking. I’ve tried searching through the forums and haven’t found many going this route. I saw something about the grand sport having a dry sump on it. I’m just trying to figure out my options and the best route to go. Any advice? All of this is going on an 86 z28

should I go for the aviaid dry sump kit?

 

I think an LS7 is an even 4.0 inch stroke.

If you want a GM dry sump then you need a long nose crank and you'll need to do the opposite of this, https://www.thirdgen.org/forums/ltx-...-dry-sump.html

GM dry sump oil pump is marginal for real track use if you want to turn over ~6K rpm. The belt-driven multi-stage pumps are better choice for track duty, but it's expensive and does not use LS7 oil pan. AVIAID and Dailey Engineering are two that come to mind.

 

im going to have a crank made by callies at a 3.9 stroke. Ls7 length so it’s longer to run the ls7 dry sump pump

 

Then in that case the challenge is just finding a home for the oil tank. You can see where Detroit Speed put it in this thread, https://www.thirdgen.org/forums/memb...ispreloading=1

If you're using GM pump, then a Katech ported pump is a good idea. It will extend rpm capability a ways.

 

so would you recommend belt drive. From someone like aviaid? I’m torn between the two options. Going the ls7 route, I’d need to source brackets that may or may not work. Someone said ctsv Brackets were closer fit. But that thread had no photos no proof of the person actually going that route. The car is a secondary car that can be driven on the streets but will spend most it’s life on the track like it had prior.