Went to the track Friday night, and thanks to the Florida heat and humidity, I didn't get any 14 second timeslips. It was the first 90* day that I think we've had so far this year (of course! )

I went to the track a few weeks ago before the swap, and it was a lot cooler. The truck was running 15.2-15.4 all night, in the 88-89 mph range.

After the cam, I was running dead consistant high 15.20s to low 15.30s all night, with 91.5-92.0 trap speeds.

I know I picked up some power, but I'm guessing that it moved it way up in the revs...I couldn't get any better than a 2.36 short time all night--I was coming up against the converter higher than I ever have and had little to no tire spin. TT3200?

All in all, I'm happy with the cam, I just really want to get a converter and gears in soon. And some headers...

 

Scream, those arent bad numbers, but they could be better. The whole purpose of a cam is to help the engine breath better.I'd be willing to bet that if you get some 02 sims from A&E and ditch the cats, that cam will really come alive.

 

I wanna keep the cats. I hate the way that LS1's sound without cats. I know that to some people "louder is better" but I just can't stand it.

I think that headers and a better exhaust will help out though. I just don't think that it'll be cherry bombs!

 

I gotta agree with ya about the to loud thing. Ive changed my exhaust agian. Those 3.5in class packs were way to loud. Now I have dual mellow tone mufflers going out the back. Now all I hear in the cab is a slight rumble. Im going to get some cutouts for race days, and save some money on the head ache med. with a quiet exhaust for around town. My neighbors really love the quiter mufflers to.

 

Congrats man! I'll bet if the temps dropped about 40 degrees you would have been running solid 14.8's or better no problem. Unfortunately we won't see that kinda weather till November.

My $.02 for next mods would be in this order: cut-out, converter, locker, LS1 Edit, long tube headers. If you keep this up you'll have an all motor 4.8L in the 13's by winter!

 

I think that the list is correct, but the order is going to be a little different:

*3.73's/Eaton/DR's
*headers
*converter (TT3000)

And, I just bought a daily driver, so I might even go with a little more gear...like a 3.90 or 4.10!

 

Go with the 4.10's! With 3.73's and 29" tires you would turn around 2100 rpm at 70. With 4.10's it would be around 2300 rpm which ain't nothing. Plus if you run some 26" drag radials and trap 100mph (let's be optimistic! ) you would cross the line around 4900 with 3.73's and 5400 with 4.10's in 3rd gear.

But maybe you shouldn't listen to me or I'll soon have you talked into a spool and 4.56's!

 

That would take a LOT of "talking-into!" LMAO!

 

Well, I have a 27" tall tire now. 4.10's would be:

Tire Diameter 1: 27.03 inches
Rear Gear Ratio 1: 4.10:1

RPM 1st 2nd 3rd 4th 5th 6th
1000 6 12 19 27 0 0
1500 9 19 28 40 0 0
2000 12 25 38 54 0 0
2500 15 31 47 67 0 0
3000 18 37 56 81 0 0
3500 22 43 66 94 0 0
4000 25 50 75 108 0 0
4500 28 56 85 121 0 0
5000 31 62 94 134 0 0
5500 34 68 104 148 0 0
6000 37 74 113 161 0 0
6500 40 81 122 175 0 0
7000 43 87 132 188 0 0
7500 46 93 141 202 0 0
8000 49 99 151 215 0 0

With 3.73's:

Tire Diameter 1: 27.03 inches
Rear Gear Ratio 1: 3.73:1
MPH
RPM 1st 2nd 3rd 4th 5th 6th
1000 7 14 21 30 0 0
1500 10 20 31 44 0 0
2000 14 27 41 59 0 0
2500 17 34 52 74 0 0
3000 20 41 62 89 0 0
3500 24 48 72 103 0 0
4000 27 54 83 118 0 0
4500 30 61 93 133 0 0
5000 34 68 103 148 0 0
5500 37 75 114 163 0 0
6000 41 82 124 177 0 0
6500 44 89 135 192 0 0
7000 47 95 145 207 0 0
7500 51 102 155 222 0 0
8000 54 109 166 237 0 0


And, with my current 3.42's:

Tire Diameter 1: 27.03 inches
Rear Gear Ratio 1: 3.42:1
MPH
RPM 1st 2nd 3rd 4th 5th 6th
1000 7 15 23 32 0 0
1500 11 22 34 48 0 0
2000 15 30 45 64 0 0
2500 18 37 56 81 0 0
3000 22 45 68 97 0 0
3500 26 52 79 113 0 0
4000 30 59 90 129 0 0
4500 33 67 102 145 0 0
5000 37 74 113 161 0 0
5500 41 82 124 177 0 0
6000 44 89 135 193 0 0
6500 48 97 147 210 0 0
7000 52 104 158 226 0 0
7500 55 111 169 242 0 0
8000 59 119 181 258 0 0