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View Full Version : 355 Cammed Lt1 need help!!



1995xfi
12-20-2019, 04:38 AM
Hello, everyone, I have a 95 355 lt1 with forged internal ported Edelbrock heads and comp cam xfi 292. I have been tuning it when I have time so far it drives ok but just was wondering if there was someone here who had experience or more knowledge about it that could maybe look at my bin file and give some advice on what changes should I make. Any help will be gladly appreciated and I thank everyone who would like to help me out.

NomakeWan
12-20-2019, 05:21 AM
Any chance you have any logs of this vehicle operating? Driving, dyno sessions, the like? While seeing the BIN gives you the settings the computer uses to run the engine, logs give us insight into what's actually happening to the engine in reality, how it reacts to those settings. I may not be a pro tuner, but I'm gonna bet that I won't be the first to ask for log files. If you can get some, it would help greatly to provide accurate recommendations.

1995xfi
12-20-2019, 09:13 AM
No logs yet but will get some I was mainly wondering if my spark table was somewhat close to where it should be for with that size cam.

steveo
12-20-2019, 05:38 PM
need logs to tell that too. does it knock when you floor it from a dead stop?

what car is it in? is it an fbody (alu head) or bbody (iron head) engine?

you actually haven't changed your spark table very much outside of wide open throttle regions, how does it feel cruising?

1995xfi
12-20-2019, 11:55 PM
it's a 95 Camaro it has false knock that I have confirmed from the new spings and ls7 lifters but it doesn't knock at WOT. The car feels fine at cruising no bucking or surge I'm just is not sure on how far or how low should I have the timing at I just don't want it to have too much timing. Do you have a suggecction on how much timing you would put in the timing map.

spfautsch
12-24-2019, 06:36 PM
Curious what your valvetrain mods are - you mention LS7 lifters and springs. What kind of springs, rockers, guideplates, and pushrod length?

I'm running a 280 xfi with 165lbs on seat, and had all sorts of false knock until I went to shaft mounted rockers.