[Z06] 2003 dyno numbers.
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
2003 dyno numbers.
A freind has just had his 03 Z06 dynoed and has the following mods,
The cars a 2003 Z06 with dynatec powermaxx system (long tube headers, cross pipe, and high flow cats) wide carbon air bridge with smoothie coupling and vortex cold air intake, and a tune.
He got 375rwhp and 413tq. I think these figures are pretty good considering no head or cam work. As I usually hang in the C3 section, just thought I would post to get opinions.
Any one have a bone stock 03 dyno sheet to compare?
As we all like dyno sheets,
The cars a 2003 Z06 with dynatec powermaxx system (long tube headers, cross pipe, and high flow cats) wide carbon air bridge with smoothie coupling and vortex cold air intake, and a tune.
He got 375rwhp and 413tq. I think these figures are pretty good considering no head or cam work. As I usually hang in the C3 section, just thought I would post to get opinions.
Any one have a bone stock 03 dyno sheet to compare?
As we all like dyno sheets,
Last edited by jotto; Aug 23, 2009 at 12:13 PM. Reason: added dyno sheet.
Pro
Joined: Dec 2003
Posts: 651
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From: Z16 #1990 Ridgecrest CA
Here's a recent post of a "bone stock" 2003 Z06 including Dyno Sheet:
http://forums.corvetteforum.com/1567612321-post39.html
http://forums.corvetteforum.com/1567612321-post39.html
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dyno
I have almost exactly same mods but LG pro headers. Made 380/370. His torque number is higher than normally seen on here. Any guesses why? I would sure be pleased if I had 413 number.
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Thread Starter
Melting Slicks
Joined: Oct 2005
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From: Redruth Cornwall
So if the Torque figure is too high, does that mean the BHP numbers would be off as well?
Would it be the fault of the dyno and or operator?
What would cause this problem, any ideas?
Thanks for the input so far.
OR
Is it possible some other mods have been made to the car that he hasnt mentioned or is unaware of that would give torque figures like that? I thought HP and TQ were directly related???
Would it be the fault of the dyno and or operator?
What would cause this problem, any ideas?
Thanks for the input so far.
OR
Is it possible some other mods have been made to the car that he hasnt mentioned or is unaware of that would give torque figures like that? I thought HP and TQ were directly related???
Last edited by jotto; Aug 23, 2009 at 05:16 PM. Reason: after thought
Team Owner
Joined: Sep 2003
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From: Raleigh / Rolesville NC
Vortex cai and / or a good single intake cai, Honker, Calloway, Cyclone, produces very good tq numbers. non turbulant High Air velocity moving into the tb and heads produces more tq. double airtake systems can produce turbuant air moving into the tb. More volume, but not as high velocity.
but I also agree those tq numbers are high, should be closer to 380-385 rwtq
but I also agree those tq numbers are high, should be closer to 380-385 rwtq
Last edited by AU N EGL; Aug 23, 2009 at 05:27 PM.
Thread Starter
Melting Slicks
Joined: Oct 2005
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From: Redruth Cornwall
Just doing the math here.
409.3 x 4731 / 5252 = 369 BHP
So, at 4731rpm, the engine is calculated as producing 369 BHP which is correct looking at the graph.
A dyno measures torque and then converts it to BHP. If the BHP figures are correct, surely, therefore, the TQ numbers must also be correct or am I missing something?
409.3 x 4731 / 5252 = 369 BHP
So, at 4731rpm, the engine is calculated as producing 369 BHP which is correct looking at the graph.
A dyno measures torque and then converts it to BHP. If the BHP figures are correct, surely, therefore, the TQ numbers must also be correct or am I missing something?
Thread Starter
Melting Slicks
Joined: Oct 2005
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From: Redruth Cornwall
Could it be that the TQ is not actually RWTQ but just max engine torque?
ie, Max engine BHP was 413, max torque was 409
RWHP was 375, RWTQ= ???