Power FC Boost spike or creep

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Sep 15, 2001 | 05:24 PM

Rotary93

Thread Starter

Retired RX7 mechanic

Joined: Feb 2001

Posts: 999

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From: Long Island, NY

Boost spike or creep

Ok call me stupid...Whats the difference between a Boost spike and Boost creep?

My PFC is set for .85 bar but hitting a high of .93 after 6000RPMS

Sep 16, 2001 | 03:33 PM

rx7eaven

Senior Member

Joined: May 2001

Posts: 491

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From: Marietta, Ga, USA

Your not stupid...what I take from it is that creep is when the psi slowly increases over your set/normal level. Spike is when it suddenly takes a jump and then returns back to the previous level. A friend of mine had a spike once, normal 10 psi it spiked at 14 psi.
94 rx7 blk r2