Bored, decked and honed L77 with JE FSR domed forged and steel top ring, forged rods. 370ci
821 control heads with hollow stainless, valvetrain tweaks / setup on Spintron. High squish smallest chamber 26.5 degrees advance using e90.
Bored, decked and honed L77 with JE FSR domed forged and steel top ring, forged rods. 370ci
821 control heads with hollow stainless, valvetrain tweaks / setup on Spintron. High squish smallest chamber 26.5 degrees advance using e90.
Last edited by pir4te; October 15th, 2016 at 12:58 AM.
Tuned induction - air dam, OTR, 4" MAF with 1" straightener, ported TB and manifold with radius bars. Stock flex pump (ZL1) and injectors (LS7).
Exhaust tuned to ethanol - custom tri-y headers with megaphone expansion chambers, 2.5" straight through to x-pipe, per PipeMax.
Cam is 222/226 on 115 LSA, 109 ICL stock base circle to retain AFM so 0.550" lift via 1.85 rockers and beehives. Deac is 224/228, Phaser has 26 degrees authority with good PTV, though plug straps are indexed to avoid dome tops.
Phaser parked DCR using 0.006" is 10.2, fully retarded like a Prius I sometimes run pump gas.
222/226 115 +6
I don't remember, when phaser is off, where is the cam parked at...? and when phaser is at full, where is cam at...?
edit: I meant +6 for cam advance (when you graph ICL it moves to the left, putting ICL at 109 and ECL at -221).
Last edited by joecar; October 28th, 2016 at 02:40 PM.
I'm gonna take pir4te's lead and get mine up so I can help. I don't have much done to my car though.
I just sold a Boss302 with a 2.3L VMP on it. This is my first LS and I'm loving it. The ctsv couldn't have been a better choice.
I made the switch because my wife and I found out we have a little girl on the way.
I just recently got back to states after serving overseas I was stationed in Yokosuka Japan, car scene is quite different there. I'm not looking to make an all out monster just a head tuner. I have a goal of pulling a certain friend back in Florida. But I want to be responsible and behind my own tuning so I don't have to be at the mercy of a tuner. I like managing my own affairs. Just need guidance and tips and study time. And I'm always down to volunteer
Cam parked is 0 deg phaser retard, is 109 deg intake centre line, is cam fully advanced 6 deg.
2 deg commanded retard gets 111 ICL (4 deg advanced)
6 deg commanded retard gets 115 ICL (straight up)
13 deg commanded retard gets 122 ICL (7 deg retard), phaser fully retarded.
IVC @ 0.006" cam parked is 66 deg ABDC, 79 deg fully retarded.
Last edited by pir4te; October 15th, 2016 at 05:15 PM. Reason: Using deg symbol wipes out post?!