effects of lsa and dcr on small to mild shot?
11-02-2009, 02:05 PM
#1
effects of lsa and dcr on small to mild shot?
I am looking into a new cam with a 110lsa, with a duration split and around a 7.75 dcr. just wondering how a 110 will react to a 100-150 shot down the road. also mite mill the stock heads a bit and try to get scr around 10.25:1 and dcr around 8.5:1. I want to stay nitrous friendly with a little more N/A. wife put a stop on the 6.0 build, so I am trying to use the parts that I have already got laying around, nitrous, rod bolts, and some things I can send back for credit.
11-02-2009, 04:16 PM
#3
I would be quite concerned with a 10.25:1 compression ratio and a 150 shot on the stock bottom end. At the very least I would run 93 octane and at least tr-6 plugs are maybe even two heat ranges colder than stock. I don't see the stock bottom end holding up long to those conditions though, but heck with the right tuning people are doing some crazy things with our engines.
EDIT-If it helps though we have almost the exact same setup and I am spraying a 150 shot with 125k miles on the engine.
EDIT-If it helps though we have almost the exact same setup and I am spraying a 150 shot with 125k miles on the engine.
11-02-2009, 05:40 PM
#4
I would be quite concerned with a 10.25:1 compression ratio and a 150 shot on the stock bottom end. At the very least I would run 93 octane and at least tr-6 plugs are maybe even two heat ranges colder than stock. I don't see the stock bottom end holding up long to those conditions though, but heck with the right tuning people are doing some crazy things with our engines.
EDIT-If it helps though we have almost the exact same setup and I am spraying a 150 shot with 125k miles on the engine.
EDIT-If it helps though we have almost the exact same setup and I am spraying a 150 shot with 125k miles on the engine.
11-02-2009, 06:07 PM
#5
I would be quite concerned with a 10.25:1 compression ratio and a 150 shot on the stock bottom end. At the very least I would run 93 octane and at least tr-6 plugs are maybe even two heat ranges colder than stock. I don't see the stock bottom end holding up long to those conditions though, but heck with the right tuning people are doing some crazy things with our engines.
EDIT-If it helps though we have almost the exact same setup and I am spraying a 150 shot with 125k miles on the engine.
EDIT-If it helps though we have almost the exact same setup and I am spraying a 150 shot with 125k miles on the engine.
yeah i know ill be pushing the bottom end pretty hard lol. stock rod bolts and everything
11-02-2009, 06:09 PM
#6
what cam do you have in your 5.3 now? I am just trying to find more out of the ol 5.3. the wife putting the stop on my motor build really pissed me off, so I am copeing with it by squeezing more out of the 5.3 under the radar. I am going to run tr6 plugs and all the nitrous safety stuff. I am planning on putting the kit on and building a wiring harness for it all this weekend. i know the tr224 will "work" ok but I want to max performance between on and off the bottle.
11-02-2009, 06:13 PM
#7
what cam do you have in your 5.3 now? I am just trying to find more out of the ol 5.3. the wife putting the stop on my motor build really pissed me off, so I am copeing with it by squeezing more out of the 5.3 under the radar. I am going to run tr6 plugs and all the nitrous safety stuff. I am planning on putting the kit on and building a wiring harness for it all this weekend. i know the tr224 will "work" ok but I want to max performance between on and off the bottle.
As far as the nitrous I'm running a nitrous express kit, HSW plate kit, NE purge, bottle heater, fpss, wot switch, window switch, bottle pressure switch. I'm also running tr-6 plugs and I am running a custom operating system in EFI Live so when I flip my nitrous switch it immediately retards 4.5* of timing and progressively retards up to 6* at 6400 rpm when I shift.
No track times, because my truck suffers from a bad vibration at 5-10 mph, but the best time to date with that setup with only an 8.9 at 81mph with a 2.2 60'. With the converter it should be doing solid 1.8s easily which would put my 1/8th mile e.t. around an 8.3. But of course that's in a perfect world.
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11-02-2009, 09:28 PM
#10
check out this screen shot.... I wonder what would happen if you turned off the electronic Throttle setting??/?