Dyno Tune
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Instructor
Joined: Mar 2010
Posts: 220
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From: Deerfeild Fla
Dyno Tune
Good morning. My vette is pinging a little at wide open throttle when the engine gets hot. Only mod is the Vortex Rammer. It was doing it before I put the rammer on it. Local vette shop suggest a dyno tune to fix the problem. What can I expect to get from the tune.
Last edited by retired cop; Apr 10, 2010 at 10:21 AM. Reason: Not enough info
Instructor
Joined: Apr 2008
Posts: 239
Likes: 2
From: Georgetown TX
I had mine done yesterday - no more pinging and I picked up 22 rwhp and 24 rwt. It's an A4 with 3.15 gears. No mods other than Z06 intake lid, K&N filter, Z06 mufflers. I am really happy with the results!
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Your knock sensors should keep it from pinging and remove timing automatically--the early C5's 97-00 had bad sensor issues but its uncommon for post 01 cars to --- A stock tune shouldn't ping --I would try a couple things 1st---you may have too much oil in the rammer and it often fouls the mass air flow meter--take it apart and spray some brake clean on the fine MAF wires to clean them--a fouled MAf would give your ECM erroneous info and change the fuel command---Also the rammer or any cold air intake typically makes your WOT fueling leaner--you may have a lean condition with the CAI--
If your car has a lot of miles--you may want to Seafoam the intake too---I would do these easy things 1st--taking timing out via a tune would take away some HP--on a stock tune and stockish motor--so i would do this last---It may be your knock sensors--but its a costly job as the entire intake has to be removed to replace them and you're looking at $500---- If you can scan it somehow borrow a scanner --see what your ACTUAL corrected timing is at WOT---it should be in the 19-24 range---If its higher than that most likely your sensors are bad-- and the timing isn't been removed for knock
If your car has a lot of miles--you may want to Seafoam the intake too---I would do these easy things 1st--taking timing out via a tune would take away some HP--on a stock tune and stockish motor--so i would do this last---It may be your knock sensors--but its a costly job as the entire intake has to be removed to replace them and you're looking at $500---- If you can scan it somehow borrow a scanner --see what your ACTUAL corrected timing is at WOT---it should be in the 19-24 range---If its higher than that most likely your sensors are bad-- and the timing isn't been removed for knock
Instructor
Joined: Apr 2008
Posts: 239
Likes: 2
From: Georgetown TX
I forgot to mention the 160 degree Hypertech thermostat.
Another option would be a mail-order tune from ECS or Chuck CoW. When Stephen was doing mine at EnglandGreen, he showed me a table that was pink at several rpms, indicating pinging. He worked his magic, and the same table was all zeroes after. No more pinging, and a LOT of extra ponies!
Another option would be a mail-order tune from ECS or Chuck CoW. When Stephen was doing mine at EnglandGreen, he showed me a table that was pink at several rpms, indicating pinging. He worked his magic, and the same table was all zeroes after. No more pinging, and a LOT of extra ponies!
