ticking only when on throttle
#1
Junior Member
Thread Starter
iTrader: (2)
Join Date: Mar 2008
Location: Navarre, Fl
Posts: 280
Total Cats: 8
ticking only when on throttle
I am having an issue that only occurred after my turbo install. Every time put my foot on the throttle i get this ticking sound. Never happens at idle or when cruising and only when in gear. I also think it intensifies dependent on how hard I mash the throttle.
What do ya'll think?
I'm kinda guessing drive train, but i sounds like its coming from the engine bay.
What do ya'll think?
I'm kinda guessing drive train, but i sounds like its coming from the engine bay.
#4
Junior Member
Thread Starter
iTrader: (2)
Join Date: Mar 2008
Location: Navarre, Fl
Posts: 280
Total Cats: 8
I have an aem fic. I've been boosted for about a week. yeah, happening about the hole time. If it was knock or det. would i happen even with a so little increase in throttle.
Also does knock or detonation happen very rapidly? (every cycle of the engine?)
Also does knock or detonation happen very rapidly? (every cycle of the engine?)
#7
Boost Pope
iTrader: (8)
Join Date: Sep 2005
Location: Chicago. (The less-murder part.)
Posts: 33,076
Total Cats: 6,628
Do you also have a wideband exhaust sensor? If so, what is it reading when this occurs?
Can you give us a broad overview of what your fuel and ignition adjustments look like?
What injectors are you using?
(etc)
Hard to know, since we have no logs to look at. When you said that "it intensifies dependent on how hard I mash the throttle," this kind of suggests that it occurs only when in boost.
Typically, yes. In the most severe case possible, it would happen once per ignition event. It can also occur intermittently, and often begins in just one cylinder. Lots of variables.
It's hard to describe it to someone who has never heard it. Some people liken it to shaking a jar full of ball bearings, others to tapping very rapidly on the block with a small hammer.
Can you give us a broad overview of what your fuel and ignition adjustments look like?
What injectors are you using?
(etc)
If it was knock or det. would i happen even with a so little increase in throttle.
Also does knock or detonation happen very rapidly? (every cycle of the engine?)
It's hard to describe it to someone who has never heard it. Some people liken it to shaking a jar full of ball bearings, others to tapping very rapidly on the block with a small hammer.
#8
It could be something as simple as a pre turbo exhaust leak at the head where it only leaks once theres a little back pressure.
considering your freshly boosted assume its det and take it very easy.
did you retard the timing? running high octane fuel?
if the ticking happens in nuetral towards redline its more likely an exhaust leak.
considering your freshly boosted assume its det and take it very easy.
did you retard the timing? running high octane fuel?
if the ticking happens in nuetral towards redline its more likely an exhaust leak.
#14
I would find someone near you that has turbo Miata experience and have them look/ride your setup before I did any more boosting. In Floridia, you should be able to find someone as there are a zillion miatas there. Just look at the Miatapalooza that is coming up.
The folks in this thread trying to help you need complete information on your specific setup. Turbo/injectors/intercooling, etc..
The folks in this thread trying to help you need complete information on your specific setup. Turbo/injectors/intercooling, etc..
#15
Moderator
iTrader: (12)
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,675
Total Cats: 3,017
One degree per psi is wonderful and all, but what was your BASE timing set at? Is it ten degrees or something more?
Do you have an 02 clamp? If not, have you read the sticky DIY FAQ for putting a turbo on a Miata?
Do you have an 02 clamp? If not, have you read the sticky DIY FAQ for putting a turbo on a Miata?