A local shop had a dyno day yesterday and Flattop set the bar for most hp. 609 with a vortec and a 75 shot and a base tune. Still more left on the table, maybe he will hit 700 next time out.
Fun, yes it is, when its not im done. I barley hit 11psi and most time its 10 and way up top 5 to 6400The Vortec V3 is a good little blower but runs out of volumetric efficiency at around 12/13 lbs (as you already see). Different car, but I am wastegating mine to 12 lbs for that very reason. You could see of a Paxton 2200 would bolt up. Is offers better low end than a YSI and would be good up to 16 lbs easily.
It sounds like you have a fun project on your hands.
As stated above, he was running a base tune and is using a blower too small for his displacement. Sure it peaked at 11 psi just before redline, but boost is much lower below 6000.Who tuned that? You should be making more than 600 to the tires on a 75 shot and 11psi with a 392 assuming you are in the 9-9.5:1 CR range.
Hi LakerWho tuned that? You should be making more than 600 to the tires on a 75 shot and 11psi with a 392 assuming you are in the 9-9.5:1 CR range.
Here's a vid of Flattop on the dyno