Stillen Supercharger boost

imazman · 08-23-2017, 07:11 AM

I would get a boost/vaccuum leak test done. I ha two small leaks, one at a throttle body and one at the small hose at front of SC boot. They were very small and weren't the cause of my issues...but definitely hav it done.

NoAiMiSe1 · 08-23-2017, 10:49 AM

Quote:

Originally Posted by imazman

I would get a boost/vaccuum leak test done. I ha two small leaks, one at a throttle body and one at the small hose at front of SC boot. They were very small and weren't the cause of my issues...but definitely hav it done.

i will check if they do a vacuum leak test here, i live in Saudi Arabia, so i am not sure if that is even possible here.

Quote:

Originally Posted by Chuck33079

The way that kit is set up, you'll lose a couple of psi with test pipes. It's pretty common.

True, but when i first installed the kit i didn't have test pipe and it was at 7 psi max also. it feels like thats the maximum pressure that it can reach

Quote:

Originally Posted by overtureZ

Do you get a nice vent to atmosphere sound with that BOV?

As for your issue I would say get with TBatt and his no-slip setup, sounds like a slip issue

well, i dont get a vent sound from the BOV, nothing from the originial BOV that came with the kit or with QRJ. i dont get a sound at all, its like the valve is not releasing anything.

Quote:

Originally Posted by TopgunZ

Are you going with the Si trim and the 9psi pulley on the water setup? We all know the outcome of that combination...

would you share the outcome of that? i am using a SI Trim with 9 psi pulley on a water setup.

Quote:

Originally Posted by TBatt

Check your belt tensioner. It should look like this. If not, you may have a belt slip issue that I can help you with. I've been selling a lot of kits that will fix belt slip.

Don't rule out a leak though. You can do the leak check pretty easy if you have a compressor and a good regulator. That is how I found mine.

please share a link of a belt that you recommend and i will ask the mechanic to have look at it. also, would you have by any chance a link explaining how to do leak test?

Quote:

Originally Posted by Jayhovah

It's like a broken Queen record that's stuck on the chorus of "Another One Bites The Dust"...

As an aside, it's sad and disturbing how many motors a setup like that has killed, considering how robust this platform really is.

you just made me google "Another One Bites The Dust" !!

whats wrong with this setup?

Jayhovah · 08-23-2017, 10:57 AM

Quote:

Originally Posted by NoAiMiSe1

whats wrong with this setup?

The #1 thing that's wrong with this setup is that the air cooler is AFTER that MAF sensors, which the ECU uses to get intake temperature and hence gets completely inaccurate data. This is very dangerous.

The #2 thing is the water cooler is just not adequate for prolonged use. Also dangerous, particularly when your ECU has no idea it has heatsoaked.

Topz is the resident expert on this and offers an Air-to-Air conversion kit which solves all the problems. ALOT safer, and ALOT more power....and pretty inexpensive to boot. No downsides. No brainer.

I am sure others will chime in with more detailed info.

Chuck33079 · 08-23-2017, 11:01 AM

Quote:

Originally Posted by NoAiMiSe1

True, but when i first installed the kit i didn't have test pipe and it was at 7 psi max also. it feels like thats the maximum pressure that it can reach

That's not the maximum pressure it can reach. You were at 7psi with the restriction of the stock cats. You added the parts to run higher boost, but then removed the cats for test pipes. 7+2-2=7

Boost is not flow. Boost is pressure. Removing restrictions will lower boost, but increase flow. Did you dyno the car before/after the switch to test pipes? What you lost in boost may not lead to a 1:1 loss in power, especially with the increase in VE from the engine not straining to push air through the cats. .

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08-23-2017, 07:11 AM	#1 (permalink)
imazman Base Member Join Date: Jan 2014 Location: PA Posts: 120 Drives: 11' 370Z Nismo Rep Power: 12	I would get a boost/vaccuum leak test done. I ha two small leaks, one at a throttle body and one at the small hose at front of SC boot. They were very small and weren't the cause of my issues...but definitely hav it done.