Quote:
Originally Posted by hawk02
Don't bother putting the stock filter back in, the likely cause of the pulsating idle is the Mamo throttle bottle. This is a known issue with ported throttle bodies. When I had a Mamo TB on my car, it hunted RPMs at idle. Not as bad as yours, but it was noticeable. I had a vMax ported TB on my 5th gen ZL1 and it hunted RPMs at idle.
Put your stock TB back on and verify that the jump in RPMs goes away. If it does, I would contact Mr Mamo. He may need to send you a TB that's ported a little less agressively.
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Agreed. Good place to start. No problem with mine, but I am personally aware of two ZL1 owners who experienced slightly erratic idles which disappeared when the stock TB was reinstalled.
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
Four that wanna own me
Two that wanna stone me
One says she's a friend of mine...
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