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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Hey guys so I just called synergy and told me my car dynoed 535whp and 485 trq. He said this seems real low on torque. And does not know why my mods are. Kooks headers, catted x pipe, z06 exhaust with muffler mod, halltech intake, heads milled .20 not potted, btr 4 cam. And c5r timing chain.
I did see my cats were super black I wonder if they are clogging my filter seemed dirty. I have stock tb and intake what do you guys think?
Thanks
Last edited by CammedC6520; 04-24-2017 at 03:08 PM.
So you have unported heads, stock intake manifold, stock TB, cats, and a BTR S4 cam. Who picked this combination of parts out? And you're the one that drove around on a stock tune for a while, correct, and ended up with gas in oil issues? I'm a fairly nice guy, and not trying to be a dbag, but I can see a future post titled "hole in block, what now?".
So you have unported heads, stock intake manifold, stock TB, cats, and a BTR S4 cam. Who picked this combination of parts out? And you're the one that drove around on a stock tune for a while, correct, and ended up with gas in oil issues? I'm a fairly nice guy, and not trying to be a dbag, but I can see a future post titled "hole in block, what now?".
Well there wasn't gas in the oil tank it just smelled it. They changed the oil there wasn't a puddle of gas just enough to smell it when u put it up against ur noise
So you have unported heads, stock intake manifold, stock TB, cats, and a BTR S4 cam. Who picked this combination of parts out? And you're the one that drove around on a stock tune for a while, correct, and ended up with gas in oil issues? I'm a fairly nice guy, and not trying to be a dbag, but I can see a future post titled "hole in block, what now?".
No one did I just don't have money for a TB Intake or a damn port job for 600-800$ to get 8-10hp
Dynos vary and all that, but yes, that is extremely low for the combo and indicates a large issue somewhere.
Its not lack of port work/etc. I've made 570-580rwhp sooooo many times on heads never off the car with a smaller cam than a BTR4.
I do notice sometimes when I close the exhaust the mild to wild when I drive it closes all the way and when I'm parked I open it and close it a few times it doesn't close all the way until I drive it and open and close it again. Wonder if I still have a vacuum leak.
Nope, just big cam issues. Very common on cams that large.
Hmm I think my cats are clogged I am on a dynapack that he said reads low. But my cats were super black when I first took them off then put 100 miles on it rich on only a startup tune (don't ask why it was mostly going to tuner and back to solve my problems) wonder if the cats are KOed
How certain are you that you installed the cam correctly and on timing?
What length pushrods did you end up using?
Could have clogged the cats from driving the car untuned.
How certain are you that you installed the cam correctly and on timing?
What length pushrods did you end up using?
Could have clogged the cats from driving the car untuned.
.0775 push rods and yes how can you install a cam wrong lol very simple. And timing yes I it all squared away
In for Dyno Graph...don't know if the car is grasping for air, et what RPM the power falls off, and how bad it falls off, etc. In any event, I'm sure your car is begging for an MSD intake.
In for Dyno Graph...don't know if the car is grasping for air, et what RPM the power falls off, and how bad it falls off, etc. In any event, I'm sure your car is begging for an MSD intake.
I'm sure I think I'm gutting the cats anyways soon as I get the car I'll get all the papers online.
That's really low, I made 536whp 485tq with a mild cam, callaway, PRC265cc heads, and cat delete on a pretty accurate superflow dyno. Something is really off.
That's really low, I made 536whp 485tq with a mild cam, callaway, PRC265cc heads, and cat delete on a pretty accurate superflow dyno. Something is really off.
Hmm that's what I'm wondering what can it be synergy doesn't know so I don't think there is a leak or anything I wonder if the cats are really clogged.
04-24-2017, 02:19 PM
Dyno numbers low? 535whp 485trq btr4
and don't forget to mention the dyno type (Dynapack). 
