I forgot to ad the link. Here it is
http://www.hotrod.com/techarticles/1...ls2/index.html

 

I think its the cam. Why such a small cam on a SC'd 6.0 setup. Try running FM7 224/230 114LSA .587 .593 cam. You should pick up alot of TQ down low and make even more HP and TQ under the curve as well as peak number. Im running a Centri blower with that cam and 8psi it saw 400rwtq at 3K RPM and 500rwtq at 4200RPM and it holds the TQ until redline. I bet with your blower you would see even more TQ down low with the FM7. Good luck.

 

[QUOTE=1SlowHoe]Finally got back to the dyno after the 6L swap. Pullied down to 2.75". The numbers are ok but overall I'm not impressed with my numbers.
Check out my graph from the 5.3@ 9PSI vs. the 6.0@ 8PSI. I gained a whopping 30rwhp and 14rwtq by swapping to a 6L and a 210/218 .551 112lsa cam and dual springs. And if the numbers weren't depressing enough check out the TQ curve or lack there of.
On the 5.3 it shot up and leveled off with the 6L its a gradual climb. The 5.3 had the stock cam in it. I am wondering if this cam choice (suggested by Vinci) was the right choice.
Maybe I'm off here so you guys chime in. I don't think the gains were worth the effort. I also offer up that other than a Maganflow muffler the exhaust is stock. Maybe I'm chocking it off. The Pacesetter are still in my garage, no time to install just yet.
These runs were done on different dynos but both are DynoJets so I don't think they would be that much different.
Give me your thoughts.
QUOTE]

I didnt bother to read all the posts

that cam is whats killing it you have an NA cam on a 112 blowing all your boost right out the exhaust valve. This is why the stock 5.3 cam performs so much better. Swap in an lpegt2-3 and I wouldnt be suprised to see you gain at least 60rwhp and around 85rwtq. Hell even if you put the stock 5.3 cam in that 6.0 it would be a drastic improvement. You want something on a 117-120 lsa !!!

 

Actually the cam he is running has a -10 overlap which means it wont leak any boost. You can calculate overlap by adding the durations then divide by 4 and subtract from the LSA and then multiply by 2. The problem is the lack of duration in my opinion.

 

lets see the cam card, if that cam is anything like the VHP 210/218 cam it has over 50 degrees of overlap. Ib be willing to bet you can hear that thing lope.

1slowhoe:we need the cam card

 

I think the cam card may have gotten trashed I can't find it. But below are the specs. I thought there was a lot of overlap as well but Vinci, being the cam experts, said it would work great. I visited the Vinci shop a month ago and Roger Vinci told me I should be running my blower at an AFR of 12.8 With advice like that I am rethinking the cam recommendation. But, its in and its running and I have no intention of tearing back into it to swap cams anytime soon. But the were right about one thing, there is a load of low end tq with this cam.
DUR @ .004" 272*/280*
DUR @ .050" 210*/218*
LIFT .551 / .551
OVERLAP 52*
LSA 112*

"ASP-KICKER "
STREET / STRIP CAM - HIGH LIFT
POWER RANGE 1900 TO 6000
TUNING & STALL CONVERTER DESIRED
CRISP THROTTLE RESPONSE - LOADS OF "TORQUE"
" DRIVE - INN " IDLE

 

This is a little clip after the 1st 6L install with the Vinci cam. This was before tuning the engine. It had just the right amount of lope for me @ 550rpm but after tuning it the idle was turned up to 750-800 and the lope is gone
http://media.putfile.com/Vinci-062-cam

 

Don't you just love the gear knocking sound from the supercharger?Did you get the pilot bearing changed yet?

 

I went to work Thursday, came home and picked up the kids (3 each) Coached my sons T-ball game, watched my daughters softball game, came home. Removed bearing, installed tranny, TC, Y-pipe, drive shaft, hooked up all sensors, installed radix and all accessories. Filled fluids and fired that pig up. No SES lights and it ran fine. Drove to get gas and went to bed at 4am so I could get a 2 hour nap before work today. It drove pretty good other than some idle searching when shifting into reverse or quick stops at a red light. EFI live is ordered as well as my laptop. I should be logging by Monday
I have yet to "get on it" because I want to let the rings seat and do a little break in. I put 45 miles on it today. I want to take a hard look at my tune before I get into boost as well. This one has to last because I'm tired of engine swaps.

 

Good deal. I'd be easy on it too until you knew the tune was nailed down.
I never had any gear knock out of my Radix with a 216/224 114lsa on my 4.8. Maybe it is that 112lsa in yours causing it to be a little more choppy. Hmmmm. would really have to compare cam cards to know for sure. I have heard of people having the knock though.