Ok, I just got the baseline numbers for my test of the ls1 intake. The numbers here are with the stock intake, on a dynojet. Hp and tq is droping off at 4500rpm. I am running pig rich at 10.0 AFR. (witch means there is more power in the tune, if tuned for 17psi) I just did a run to see how it would do on a dynojet, and to get a baseline for the intake swap. I am still loosing boost, it peaked at 17psi but dropped to 14 during the run. I could not get any dyno time in at synergy to dynotune. It's a two week wait. I will post the dyno sheet as soon as I find my digital camera. Not bad. I will slap on the ls1 intake this week and try to see the difference. I will post both dyno sheets and let you decide if it's worth it. Ok, here is the dyno.

 

Those are some nice number man! Good to know theres some hp still in it too! I'd like to see that dyno sheet. I got a Z06 cam in the little 4.8 and plan on turning it up a bit

 

good god!! 551hp and 647tq on a stock 5.3 with 317 heads with ZO6 cam?? Thats nuts!! I cant wait to see what the dyno looks like with the LS1 manifold!! I was hoping to make 650 on the 6.0 and I think that its very possible. Please keep us posted!!

 

I wouldnt expect the lil 5.3 to last long under those conditions but sounds like it is running like a raped ape at the moment.

 

wow nice truck is that a T56?

nevermind thats kinda dumb question

 

Yeah! I think you are right, It's not the best for longevity. But, I think that is the risk you take when you go HIGH PERFORMANCE. I am surprised that the transmission and clutch is holding. Stock t-56 and the OZ 700 clutch. The trans has 80k miles on it, as per what the guy who sold it to me said. Thanks Guys! I cant wait to see what the ls1 does as well. I think it will just change my AFR, hopefully for the better. I also hope it will bring my hp and tq peaks closer. As well as a higher powerband. I think the hp may be the same, and the tq may lower alittle. Here is to wishfull thinking!

 

That is awesome man!

I feel a hell of alot better about my estimated HP I had with my STS and 14.5psi and a full tune then

Keep us posted on the intake results and after the tune. I'm really excited to see how it tunrs out since we had a similar setup.

 

Very nice numbers!

 

Very nice indeed!

 

bad *** numbers dude...