for Ratsmoker
Thread Starter
|
Postmaster
Joined: Nov 2001
Posts: 3,351
Likes: 1
From: Escondido, CA
for Ratsmoker
I noticed on your gallery page you posted a pic of your engine dyno sheet. If you advance the timing on the lower right portion of the Desk Top Dyno you will be able to get rid of that nasty flat spot on your TQ curve. Yes, the HP will drop down a little bit but you will notice that your TQ readings will go up and you will get a real world idea of what your engine is doing for you. Not trying to knock it. You have a very nice set up going for your 390. Keep it coming. Also what kind of cam are you running in your 390?
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
for Ratsmoker
Thanks. I doubt I am making quite that much power anyway. The cam is ground 4 degrees advanced from the factory. Those are the specs that were on the card. That graph is 100% as accurate as desktop dyno can be. I hope they will come out with a new program as they could definitely improve on it. According to the program solid and hydraulic roller cams produce the same power in the same areas. This is not true by any stretch of the imagination. Anyways, my cam is a crane 343801 hydraulic flat tappet type.
.548/.580 lift
278/290 advertised duration
222/234 .050 duration
114 Lobe center angle
I do love the cam but it is going to get taken out next year when I get back from Korea. I am thinking about the 341191 mechanical cam. I want a cam to pull me to 6500 rpm and make use of the 3200 stall a little better.
.548/.580 lift
278/290 advertised duration
222/234 .050 duration
114 Lobe center angle
I do love the cam but it is going to get taken out next year when I get back from Korea. I am thinking about the 341191 mechanical cam. I want a cam to pull me to 6500 rpm and make use of the 3200 stall a little better.
