good or bad-the shit box hits the rollers this week
Originally Posted by Patrick G
Pat, you may pick up some mid-range by advancing your cam a few degrees. Unless it was degreed-in, it might not be in at 112ICL. And even if it is, 6600rpm peak is too high. Should be 6300 with that cam if the ICL is correct. I'd advance it some and re-dyno. You torque should improve.
By looking at the graph I was thinking of an advance of 4 degree's.Got to give Pat something to do for next winter 
The tune was steady today but I'm not setting it in stone.This car has a habit of kicking me in the nut's after Pat drives it home
The tune was steady today but I'm not setting it in stone.This car has a habit of kicking me in the nut's after Pat drives it home
This car isnt missing 5-10 ft/lbs....its missing closer to thirty (this car has alot of the "detail mods" that help nickel and dime a good number).
I've advised Pat to do a cranking compression check. He's got the right heads, the right compression, and the ultimate headers for a C5 (especially for producing TQ) yet thats specifically where this combo comes up short (at least for now). I even personally flowtested his heads before they left knowing his track record so I could rule the heads out in the event of weak results....LOL...and I'm NOT kidding.
I would be very curious about the CCR check which would certainly be helpful at this point. And I also mentioned to him about the HS rockers which are probably doing him no favors in regards to clean valve control (as someone else touched on as well).
Also, how much lifter preload are we running? (another important detail)
We shall see how this unfolds....waiting on more input!
Tony M.
PS....I also wouldn't mind seeing a different cam in this engine but the one in there certainly couldn't be blamed for TQ results this far off....unless it was installed or ground wrong. I think there are other things amiss here although I agree this cam might not be ideal and it might not be installed in its optimium position obviously either.
I've advised Pat to do a cranking compression check. He's got the right heads, the right compression, and the ultimate headers for a C5 (especially for producing TQ) yet thats specifically where this combo comes up short (at least for now). I even personally flowtested his heads before they left knowing his track record so I could rule the heads out in the event of weak results....LOL...and I'm NOT kidding.
I would be very curious about the CCR check which would certainly be helpful at this point. And I also mentioned to him about the HS rockers which are probably doing him no favors in regards to clean valve control (as someone else touched on as well).
Also, how much lifter preload are we running? (another important detail)
We shall see how this unfolds....waiting on more input!
Tony M.
PS....I also wouldn't mind seeing a different cam in this engine but the one in there certainly couldn't be blamed for TQ results this far off....unless it was installed or ground wrong. I think there are other things amiss here although I agree this cam might not be ideal and it might not be installed in its optimium position obviously either.
Last edited by Tony Mamo @ AFR; Aug 14, 2006 at 10:48 PM.
Sorry to hear it was short of what you were shooting for. I know you have been through a lot with your combo and heads. None the less, you have to admit those are some strong numbers and a great tune compared to what we all had a few years ago. 
I bet she runs good at the track.
Originally Posted by Tony Mamo @ AFR
I would be very curious about the CCR check which would certainly be helpful at this point. And I also mentioned to him about the HS rockers which are probably doing him no favors in regards to clean valve control (as someone else touched on as well).
Also, how much lifter preload are we running? (another important detail)
We shall see how this unfolds....waiting on more input!
Tony M.
PS....I also wouldn't mind seeing a different cam in this engine but the one in there certainly couldn't be blamed for TQ results this far off....unless it was installed or ground wrong. I think there are other things amiss here although I agree this cam might not be ideal and it might not be installed in its optimium position obviously either.
Also, how much lifter preload are we running? (another important detail)
We shall see how this unfolds....waiting on more input!
Tony M.
PS....I also wouldn't mind seeing a different cam in this engine but the one in there certainly couldn't be blamed for TQ results this far off....unless it was installed or ground wrong. I think there are other things amiss here although I agree this cam might not be ideal and it might not be installed in its optimium position obviously either.
ill look for the preload tomorrow, its written in my notes at home. as for the cam check out this thread:https://ls1tech.com/forums/generation-iii-internal-engine/366429-what-do-u-think-cam.html
Those numbers are pretty good. I agree with the others, put the stock rockers back on. I hope you can get your combination where you want it, but it looks pretty good to me right now. Good luck.
Bruce
Bruce
Something I've noticed throughout the years is that alot of 00 cars dyno lower than other's with H/C setup's.Don't know if the engines are loose or the synthetic oil they came with just ruined the seating of the rings.I could probly bring up 10 cars that didn't perform so well with H/C setups and probly 8 of them are 00 motors.
All dynos read differently, who cares that he didn't put out the best numbers. As long as it runs good at the track, the dyno numbers shouldn't matter. Dynos are just tools for tuning purposes, but people turn dyno numbers into the most important thing. A good analogy is a question relating to how strong a person is. The famous "how much can you bench?" question. There are alot of variables that effect benchpress. And if one person benchs more than the other it does not neccesarily mean the person that benches more is stronger. The same thing goes for dyno numbers, all dynos read differently. If one car dynos higher than another that doesn't mean squat unless it was the same dyno the same day, and strapped down just as tight.
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Originally Posted by Slowhawk
Something I've noticed throughout the years is that alot of 00 cars dyno lower than other's with H/C setup's.Don't know if the engines are loose or the synthetic oil they came with just ruined the seating of the rings.I could probly bring up 10 cars that didn't perform so well with H/C setups and probly 8 of them are 00 motors.
The 346 that I originally featured with the 205's and the original 224/228 combo was a plain Jane LS1 (not an LS6 block) from my 2000 coupe. Obviously the results with that particular engine were just the opposite but I bought that car brand new, broke it in properly, and changed the oil at regular intervals of course which certainly probably helped. Pats car has always seemed to be a little off the mark and maybe he has one of those "softer" 00 models you refer to.
Pat....did you get that CCR figure yet?
Call me today at AFR if you have some time...
Thanks,
Tony
Yes,the scale is different.I ussually always force scale it but the printer was acting up and I must of forgot to on this one.Pat does have a compare graph of this one and his old setup which is probly scaled.
I would bet the rings are not sealing great since the car did blow some smoke on every run.Nothing horrible but it was still there.I would just drive and enjoy
Well,I hope everything is still driving good
I would bet the rings are not sealing great since the car did blow some smoke on every run.Nothing horrible but it was still there.I would just drive and enjoy
Well,I hope everything is still driving good