Ron, where are you, man!
Just got home from Vegas (late last night) from the Mopars at the Strip show.
John, those numbers look fine. You have to remeber that this is a very mild build for a 512 ci stroker. You wanted a streetable engine with lots of low end power and this is what you got. Look at all the torque at low engine speed !
Even if the cam was retarded a few degrees it wouldn't make any appreciable difference. It's fine
I still don't understand why the motor was running such a hot exhaust when it was delivered to the dyno shop. They had to mess with the jets to fatten it up. I was told the number was 12.5:1 at the top of the pull and the exhaust temp was now running 900* - 1000* after warming up the motor on the stand (What is normal?).
Basically, I think the dyno shop probably made it slightly too fat because they had more concern about getting the exhaust temp down. Their point was we can better tune it on the chassis dyno with everything hooked up. Again, they know chevy, but not so much mopar so I don't know how that factors.
I need to call the engine builder for something unrelated, and I was told to ask them if they checked the cam timing during the build. Can anyone think of anything else intelligent I could ask.
The EGT's seem a little high. It's possible that the engine is pulling some air in from the manifold or carb base which could be leaning out the mixture. On the back of the Street Dominator Intake there is an EGR port with two holes that need to be blocked off with freeze plugs...was this done ? How much vacuum was the engine pulling at idle ?
Ron
