New nitrous cams for 2013
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FormerVendor
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Not necessarily. Just adding duration to his exhaust side would have probably hurt it. I know of quite a few folks that like to over cam the motor and can't understand why it doesn't run like it should. There is one mozez headed motor out there now that is way to big on duration on the exhaust side and I expect to see significant gains on that car with a cam change.
I wouldn't really expect to see a Mozez head motor with a really early exhaust valve opening event, as the exhaust port on that particular head flows a significant amount of volume. It's all relative to the combination. That said though, you can take a lot of exhaust duration and stick a tight lobe separation on it and make the exhaust opening event later than a cam with less exhaust duration with a wider lobe separation.
What do you take from the dyno graphs I've shown?
Smaller cam compared to?
Not necessarily. Just adding duration to his exhaust side would have probably hurt it. I know of quite a few folks that like to over cam the motor and can't understand why it doesn't run like it should. There is one mozez headed motor out there now that is way to big on duration on the exhaust side and I expect to see significant gains on that car with a cam change.
I seen the same thing with my nitrous cars
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From: Mount Airy, NC
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FormerVendor
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From: Mount Airy, NC
Not concerned with the numbers, just the shape of the curve. If the power peaks and then falls on its face versus holding that peak power out over 300-400rpm it's going to be faster at the track if you can shift it later to take advantage of it and have the top-end to take advantage of it. Having a 400rpm window of peak power versus 800rpm has got to be faster at the track unless you've got a 4 speed lenco set-up and a 5.13 rear gear that only drops 400rpm on the shift. With a powerglide that drops over 1000rpm on the shift the wider the powerband the faster the car will be.
Totally combination dependent of course.
Totally combination dependent of course.
Last edited by Sales@Tick; Jan 31, 2013 at 11:08 AM.
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Thread Starter
FormerVendor
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From: Mount Airy, NC
That's a really good running car you got there man! I wish we could give out free stuff, maybe one day soon we can do something like that. Car moves out for sure though with the 6 speed.
I met Jonathan and his dad way back in like 2006 or 2007 at the GM high tech performance track rental/photo shoot .
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FormerVendor
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Give me a call one day at the shop and I'll see if I can do anything for an old friend of the shops. :-)
