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View Full Version : 16g compressor housing on a 14b REVIEW


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4g63tcrazy
06-10-2009, 08:00 PM
Well I know there have been some question's about a 16g compressor housing on a 14b and since my 16g decided to let go, I picked up a used 14b from Dan (Constant Project). I put the ported 7cm housing from the 16g I had on there and I also put the 16g compressor housing on it. Here is a picture of the gap between the compressor fins and the housing..

http://i224.photobucket.com/albums/dd75/nashmkna/turbofingap.jpg

As for the results.. I'm running a steady 20psi til redline. But the turbo doesn't hit full spool til 4700. Yes I said 4700rpm.. In my case this is good though! (FWD) I can actually get decent traction now in 1st and 2nd gear. The turbo also doesn't sound like a turbo at all. It sounds more like rushing air, no whistle to it. The car still pulls very hard but I haven't had much time to do any good tuning with it. Right now my a/f is ranging from 11.3 to 12.1 or so with about 20 degree's' of peak timing. I haven't had any time to really dial it in. My goal is to get it up to 25psi so I'll report back once I do and actually have some time to tune it.

Gravy
06-10-2009, 09:54 PM
That's what i always figured would happen, i have a 16g wheel and an 18g turbo and do plan on going with the 18g wheel, but always wondered how it would work. Keep us up to date, looking forward to how well it works.

Gravy

4g63tcrazy
06-10-2009, 09:58 PM
Yeah, it's a bit laggy but it fits my car very nicely. With the 16g it would just hit 30psi instantly and I would just spin all over the place. So it's definatly a nice change. I'll have to take a video of me doing a quick pull and post it up.

twack
06-10-2009, 11:34 PM
toss a 16g wheel on there and get it balanced and i bet it will spool awesome

Super Bleeder!!
06-11-2009, 12:13 AM
is that gap between the inducer and the cover as big as it looks?

Constant_Project21
06-11-2009, 12:36 AM
toss a 16g wheel on there and get it balanced and i bet it will spool awesome
then it would just be 16g..lol. 16g compressor+16g wheel+ported 16g housing= ported 16g...if my math is correct.

Shane@DBPerformance
06-11-2009, 01:09 AM
The bigger the gap between the compressor wheel and housing the less efficient the compressor wheel becomes. That thing has to be spinning like crazy trying to make boost, but at least it won't compressor surge.

Gravy
06-11-2009, 02:09 AM
I do have a 16g wheel if you want one. Would complete the turbo!

4g63tcrazy
06-11-2009, 06:25 AM
I already have a 16g wheel I could put on here if I wanted to go that route. But I don't plan on it. Yeah the gap is pretty much as big as it looks and yeah my boost controller is cranked down pretty good to achieve the boost level I'm at. I'm just gonna try and hit 25psi with it, tune it, and then probably put the 14b compressor housing back on.

Kevin 1G Drummer
06-11-2009, 07:44 AM
That thing has to be spinning like crazy trying to make boost, but at least it won't compressor surge.
That's what I was thinking. It kinda makes you wonder how long it will last like that before the bearings decide to let go.