[Smkymts]

Originally Posted by Smkymts

I have collected and sent off 4 sets of data logs to Ted and SLP for review. Awaiting their analysis. stay TUNED!

I have been extremely lucky to have two great tuners look at the logs and share thoughts. Here is the conversation:

Ted's thoughts are in black, SLP's responses in Red

More than likely the car still has the factory map sensor that caps at 120 KP a or just over atmospheric pressure. – Correct so recording MAP on a ECM data logger will not help determine belt slip, or overall boost pressure.

You would need a ZR1 3 bar map sensor and a tune for it, to log boost.– correct, add to this - the back of the supercharger has the ability to hook up a boost gauge if you would like. Also this can be done on a dyno and the boost can be hooked up to the same location and recorded through the dyno sensor box. This will give you the ability to load the car on the dyno to find the exact point at which you may or may not have belt slippage. Performing a ¼ mile pass and different WOT runs in different gears on a dyno (under a road load test) is also a quicker way to find a possible belt slip issue. Dyno shops like SLP have the ability to move 30-35mph air over the car during runs which helps in cooling and more realistic results but, performing the above tests on the dyno typically yields higher IAT and higher ECT which you will not see at the track which also helps track down any possible running issues.

I see very High IAT given the conditions which pulls timing so I suspect Air in the intercooler system or some problem with Flow or Air flow to the heat exchanger.From your data log I show a high of 52 and a low of 32 on the IAT sensor. No timing is being pulled at these IAT temps. Also I have the ability to look at the ignition timing table that is in your car and you are getting max timing when you are in WOT which in your logs is not very often.

I also Suspect Belt Slip which can be rectified by adjusting the tensioner and Idler pulley, they should be only a 1/4 inch apart at Rest. – If there is belt slippage making the tensioner tighter will help, but internal extensive SLP testing at the 6-7psi boost level on LS3 and L99 camaros only shows belt slippage after getting into 5th gear. The slippage is minor and the vehicle will only loose 0.25 psi when the tension on the belt is correct.

The Tune looks really good from what I can see in the LTFTs and the Timing.

I guess that means I will have to wait until Spring to collect real Track data. I would like to know all the fields I need to collect, since the ones outlined in the above video are not enough? Any thoughts??