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View Full Version : LT5 Idle w Pete's cams

XfireZ51
02-13-2017, 01:18 PM
Playing in the garage since temps are near 40 (Awesome weather for ORD)
Had motor idling just to warm things up and test new alternator so I thought I'd document this. Motor running well.
BTW, both Intake and Exhaust.

http://i187.photobucket.com/albums/x198/Z51Xfire/Mobile%20Uploads/2017-02/th_07BF87FB-C2D1-4F4C-B3E7-3A4CF5A08D75_zpsnd5fxkit.mp4 (http://i187.photobucket.com/albums/x198/Z51Xfire/Mobile%20Uploads/2017-02/07BF87FB-C2D1-4F4C-B3E7-3A4CF5A08D75_zpsnd5fxkit.mp4)
Roadster
02-13-2017, 02:22 PM
Your engine sounds real good, very smooth.....
btw, is that a crack in your gauge cover?

Scratch.
efnfast
02-13-2017, 07:28 PM
Boy, I hope my car idles that nice. Altough, I do like that cam lope.
XfireZ51
02-13-2017, 07:58 PM
Boy, I hope my car idles that nice. Altough, I do like that cam lope.

This is in Closed Loop.
efnfast
02-13-2017, 08:36 PM
How does that change things Dom?
XfireZ51
02-13-2017, 09:05 PM
How does that change things Dom?

Most tuners, of the ones I know of, tune "cams" in Open Loop. Closed Loop allows modification of fueling based on O2 input and allow me to manipulate
parameters that are not enabled in Open Loop. In my experince, tuning in Closed Loop gives me more control over how engine will operate in a variety of situations resulting in more consistent operation.
It takes more time but it works for me.
jss06c6
02-13-2017, 10:05 PM
Very nice Dominic! Is that where you are going to mount the wideband display. Love the digital and the exhaust temp!

Steve

Sent from my XT1585 using ZR-1 Net Registry mobile app (http://r.tapatalk.com/byo?rid=90383)
XfireZ51
02-13-2017, 10:36 PM
Very nice Dominic! Is that where you are going to mount the wideband display. Love the digital and the exhaust temp!

Steve

Sent from my XT1585 using ZR-1 Net Registry mobile app (http://r.tapatalk.com/byo?rid=90383)

Steve,

I have the console apart for installation of an appRadio4. The display comes w the Zeitronix ZT-2 WB that I have used for about 10years. The display has
AFR, MAP v, and Lambda. The EGT isn't working although it can be plumbed into the WB datastream. I use a 14.3 AFR for stoich since we have 10% Ethanol here in the Midwest, so I really look at Lambda for tuning purposes.
jss06c6
02-13-2017, 11:28 PM
Steve,

I have the console apart for installation of an appRadio4. The display comes w the Zeitronix ZT-2 WB that I have used for about 10years. The display has
AFR, MAP v, and Lambda. The EGT isn't working although it can be plumbed into the WB datastream. I use a 14.3 AFR for stoich since we have 10% Ethanol here in the Midwest, so I really look at Lambda for tuning purposes.

Nice! Need to chat about 10% ethanol Stoich and tuning impact.. I calculated 14.11 here in Houston. Topic for another time.. I'll drop you a note regarding my WOT runs yesterday...

Steve