Are catch cans necessary with single turbo setups?
Which catch cans come baffled? A quick google search yields no results of baffled cans, only unbaffled cans such as the Greddy etc. Do you have a pic your catch can setup lexforlife? Btw, I met you when I was in Miami with moosejaw aka Andew. 
You have a nice SC for sure.
You have a nice SC for sure.
hard to explain put has to do with the speed of the air being pulled by intake side of turbo and how much actually gets vented .. ill see if i can find the article online from the drag racing world that lead me to this design.. even my tuner liked it alot and saw engine was more responsive since doing it
I ran my setup without one, and ended up blowing out my front rear and cam seals. a simple $20, yes $20 setup fixxed that. Now I'm about to put my whole setup back in after I have pulled the motor, cleaned and replaced all the seals, etc.
Just do the catch can, it's worth it.
Jeff
Just do the catch can, it's worth it.
Jeff
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
I pull 19-20in at idle with stock cams just FYI. Most aftermarket cams pull less due to overlap obviously, but I wonder if having no PCV through the intake has anything to do with the higher vacuum numbers. Since PCV is a controlled vacuum leak, maybe having no accommodation for it leads to more vacuum? Oh, and degreeing the cams can get rid of the overlap and bring vacuum numbers right back up as well.
I pull 19-20in at idle with stock cams just FYI. Most aftermarket cams pull less due to overlap obviously, but I wonder if having no PCV through the intake has anything to do with the higher vacuum numbers. Since PCV is a controlled vacuum leak, maybe having no accommodation for it leads to more vacuum? Oh, and degreeing the cams can get rid of the overlap and bring vacuum numbers right back up as well.
I ran my setup without one, and ended up blowing out my front rear and cam seals. a simple $20, yes $20 setup fixxed that. Now I'm about to put my whole setup back in after I have pulled the motor, cleaned and replaced all the seals, etc.
Just do the catch can, it's worth it.
Jeff
Just do the catch can, it's worth it.
Jeff
I ran my setup without one, and ended up blowing out my front rear and cam seals. a simple $20, yes $20 setup fixxed that. Now I'm about to put my whole setup back in after I have pulled the motor, cleaned and replaced all the seals, etc.
Just do the catch can, it's worth it.
Jeff
Just do the catch can, it's worth it.
Jeff
Thread
Thread Starter
Forum
Replies
Last Post
