just add a turbo...............................
CamKing
Moderator: Team
Re: CamKing
Best thing to do, is fill out my cam recommendation form. http://jonescams.com/drag-race/
BTW, you want the compression as high as your fuel will allow.
Mike Jones
Jones Cam Designs
Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449
Jones Cam Designs
Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449
Re: CamKing
I get questions about my 79 Impala about how much HP or how big the engine is. The idle sounds nasty, but the engine is very mild. It's a stock Vortec engine with another 10 degrees ground into the cam, 1.6 rockers, and headers. My last 3 fill-ups have been 18.7 mpg. You can have your cake and eat it too. It might produce better economy with 1.5 rockers, but I have grown fond of the sound of the idle.
So much to do, so little time...
-
- Guru
- Posts: 6381
- Joined: Tue Jul 24, 2012 11:15 am
- Location: Roseville, Michigan (just north of Detroit)
- Contact:
Re: CamKing
Personally, I don't think just 10 degrees over stock would make a lot of difference in the sound manners.rfoll wrote: ↑Wed May 23, 2018 12:27 pm I get questions about my 79 Impala about how much HP or how big the engine is. The idle sounds nasty, but the engine is very mild. It's a stock Vortec engine with another 10 degrees ground into the cam, 1.6 rockers, and headers. My last 3 fill-ups have been 18.7 mpg. You can have your cake and eat it too. It might produce better economy with 1.5 rockers, but I have grown fond of the sound of the idle.
http://www.rmcompetition.com
Specialty engine building at its finest.
Specialty engine building at its finest.
Re: CamKing
If the LSA got tighter, maybe.Walter R. Malik wrote: ↑Fri May 25, 2018 10:41 amPersonally, I don't think just 10 degrees over stock would make a lot of difference in the sound manners.rfoll wrote: ↑Wed May 23, 2018 12:27 pm I get questions about my 79 Impala about how much HP or how big the engine is. The idle sounds nasty, but the engine is very mild. It's a stock Vortec engine with another 10 degrees ground into the cam, 1.6 rockers, and headers. My last 3 fill-ups have been 18.7 mpg. You can have your cake and eat it too. It might produce better economy with 1.5 rockers, but I have grown fond of the sound of the idle.
Jim
Re: CamKing
I was surprised by the sound, it's only there at a dead idle, but that's the way it is. Maybe because of the 1.6 roller rockers, maybe the 2 1/2" exhaust with headers, maybe because I run the idle as lean as I can for fuel economy. I had to run the apt all the way to the bottom to get the afr I was after. Maybe because of the stock QJ carb, or the fabricated adapter for the square pattern carb flange, who knows. I had the 112 lsa left as is for fuel economy. I'm pretty sure I installed it at 4 degrees advanced. regardless, it's a clear example of what you can do with a decent stock motor. The original engine ran well, but it was slow and only got 14 mpg freeway no matter how I tuned it. Apparently it took GM 20 years to get it right
So much to do, so little time...