Boost Controller...Have you heard of this one?
#8
Boost Pope
iTrader: (8)
Join Date: Sep 2005
Location: Chicago. (The less-murder part.)
Posts: 33,339
Total Cats: 6,793
After struggling to control boost spike with my el-cheepo eBay MBC I splurged for the fancy TurboXS HPBC model. Honestly, I can't tell the difference. Even with a helper spring installed I'm still not seeing consistent boost.
#12
Former Vendor
iTrader: (31)
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,103
Depends on your setup. I have a cheapie eBay MBC and I do not get boost spikes, period. My setup builds to 13psi and tapers off to around 10psi at redline. I'll be switching over to EBC via the MS eventually, but for now this works nicely.
#15
If you really want to splurge, go for a 2 stage MBC. 1 stage MBC just bleed air that should have helped the turbo spool up and avoids turbo boost spikes. On a 2 stage MBC, the first stage is controlled by a stiff ball/spring. This will get you into your target boost ball park. Then the 2nd stage lets you fine tune the boost by 1/2 psi.
I've been using one for two years, and never had a boost spike that could have killed my motor. Bought it from a guy on eBay, who still answers my support email today. ebay listing #300127883674
I've been using one for two years, and never had a boost spike that could have killed my motor. Bought it from a guy on eBay, who still answers my support email today. ebay listing #300127883674
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