werd, I dynoed my 4.8 with lt headers/intake/exhaust/tune and made 266whp. with a asa cam 226/236 .525/.525 110 lsa I made 317whp. Made more with live tune but never got to dyno it after that.
OP I would get a bigger cam than the 220. I would get as big a cam as I could fit in there. If you dont want to buy LT's look for a cam that does well with stock manifolds. If it was My sdime I would get a turbo.
if you made more hp with same mods and lesser stroke it makes me think somethings for sure off...conveter/trans maybe? they seem to be working well but i wonder if its robbing more power than it should
oh and i dont want to go to big on the cam size because i drive it everyday everywhere, and have a little dry 100hp shot i want to run
Last edited by lsxs10; 07-15-2009 at 05:16 PM.
1999 rcss/2002 5.3, Ls1 cam, Ls6 intake manifold, Ported TB, NelsonPerformance tune, CAI, MSD 8.5s, Sanderson shorties, Magnaflow X-pipe, Maganflow 2in2out muffler(no cats), FLT lvl4, Yank 3600, B&M tranny cooler, e-fans, 2/3 drop, Truetrac, Trickflow cover, 3.42 gears, Caltracs, A.R. Irocs 18"x8", NS-2s(245/40/18), Nitto 555s(275/45/18) two JL 10s, 2" cowl hood, SS mirrors, SS bumper cover, step shavers, and Alot from Current Performance
First of all the biggest thing that could be throwing the numbers off is the heat. I'm not sure where you live, but it was 101* here in Austin today.Originally Posted by lsxs10
Second, don't be too discouraged about dyno numbers. I've seen guys dyno at under 300 rwhp and run 13s and guys dyno at 500 rwhp and run 15s. A dyno is a tuning tool not a measure of how quick your truck is.
The only way to tell is to take it to the track. You'll find out real quick when and where your problems are based on your 60' as well as your 1/8th and 1/4 mile e.t.s and trap speeds.
yea i hear ya...it was a damn hot day and about 100% humidity
1999 rcss/2002 5.3, Ls1 cam, Ls6 intake manifold, Ported TB, NelsonPerformance tune, CAI, MSD 8.5s, Sanderson shorties, Magnaflow X-pipe, Maganflow 2in2out muffler(no cats), FLT lvl4, Yank 3600, B&M tranny cooler, e-fans, 2/3 drop, Truetrac, Trickflow cover, 3.42 gears, Caltracs, A.R. Irocs 18"x8", NS-2s(245/40/18), Nitto 555s(275/45/18) two JL 10s, 2" cowl hood, SS mirrors, SS bumper cover, step shavers, and Alot from Current Performance
very good point
Name: Mark,
God created turbo lag so nitrous trucks could have a chance.
http://www.ls1truck.com/forums/my-ga...tml#post274877
+ one million
had a lot of the same mods with the exception of the tr220 and put dowm 324hp with 22's and a 3k stall
Master power t-76 kbracing, Intercooled, 11psi, tr220 cam, patriot dual springs, 72lbrs, snow meth, walbro, efans, 80e, tansgo, yank 3200.
went back for the N20 tune but it was freezing the MAF still..the only thing different i did was take out the screen before the MAF and the results this day were a little better(and it was hotter, 96degrees)
rwhp 254.93
rwtq 300.25
Last edited by lsxs10; 07-25-2009 at 05:20 PM.
1999 rcss/2002 5.3, Ls1 cam, Ls6 intake manifold, Ported TB, NelsonPerformance tune, CAI, MSD 8.5s, Sanderson shorties, Magnaflow X-pipe, Maganflow 2in2out muffler(no cats), FLT lvl4, Yank 3600, B&M tranny cooler, e-fans, 2/3 drop, Truetrac, Trickflow cover, 3.42 gears, Caltracs, A.R. Irocs 18"x8", NS-2s(245/40/18), Nitto 555s(275/45/18) two JL 10s, 2" cowl hood, SS mirrors, SS bumper cover, step shavers, and Alot from Current Performance
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