A while back I wrecked my afm after doing the Lexus 550 swap. I tried several different afms to no avail. While trying to find a solution I realized I had both my ssqv bov and the stock bypass valve and decided to bypass the bypass valv. Not knowing any better, (before I discovered tsrm and countless resources on the net) I removed the valve and just put a hose in its place essentially sending air from the intake straight back before the turbo. I eventually went to vpc as I was tired of afm and my car has been just dandy (minus other unrelated issues.) Now after so long I just thought about what I had done with that hose and I'm wondering how I didn't have a huge boost leak?! On my stock ct I was able to get up to 12psi no issue. I currently have my boost controller turned off as I'm breaking in a 57 trim ct and I get 5.4 and hold it all the way through. I plan on plugging up those ports soon but Im confused as to how it's worked this whole time. Any ideas?!?
Boost leak?!?
- Thread starter proto_mkiii
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proto_mkiii
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Just noticed how long that was. Key points:
-Placed a hose between where the bypass valve used to be.
-Still making boost. No apparent leak.
How is this possible?
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Just noticed how long that was. Key points:
-Placed a hose between where the bypass valve used to be.
-Still making boost. No apparent leak.
How is this possible?
The hole isn't big enough to stop you from making boost. Plugging it will, however, drastically improve your spool times.
So I took out the hose and plugged up the two ports...and now I understand why everyone says the CT spools quick!!! What a complete change! Only issue now is I have a little flutter. I'm not sure if its actually compressor surge or if its the insert I have on my SSQV. I only say that because I had a friend with a 240 who changed his insert to the one I currently have and it made a similar sound.
I modded mine to change its operational characteristics to combat that condition. Its not [AFM/vent to atmosphere] friendly, but if you re-route it or run speed-density its great!
I think I'll do a write-up on it- it wasn't that hard to do.
I think I'll do a write-up on it- it wasn't that hard to do.