cjames Posted December 3, 2007 Share Posted December 3, 2007 Anyone have experience with this cam? Delta offers what they refer to as a 270-260 grind that works well on the street for a L28ET. I'm having them surface my rockers, ($100) so I might as well have them cut the cam too. Quote Link to comment Share on other sites More sharing options...
Clifton Posted December 4, 2007 Share Posted December 4, 2007 I just got there 292/282 turbo cam. The price was right but the duration and lift wasn't what the cam card says at .050" Took a while to figure out how to degree it in as the closing was way off, finally went with lobe centerline. They used a rocker ratio of 1.6 instead of 1.5. Kinda upset at the lift more than the duration as I wanted more but they didn't have it and now it's even less. Ask what the specs are with a 1.5 rocker arm ratio. Quote Link to comment Share on other sites More sharing options...
dum-bass Posted September 7, 2008 Share Posted September 7, 2008 I've been using Delta Camshaft for years and I love these guys and they are only a 30 minute drive from my house! I have had five different cams ground there and @ $50. for a cam grind plus $3. per cam follower surfacing, It's a bargain!! But I honestly have to say that while trying to degree my cam with my new supercharge rebuild, I end up with different readings at the valve lift than my cam is supposed to be. Maybe my error, or maybe the rocker ratio like you guys are suggesting. If a Chevy rocker ratio is something like 1.4, and a L-motor is 1.5, then that is a substantial amount. I am going to talk to Mike at Delta and see what's goin on Quote Link to comment Share on other sites More sharing options...
Clifton Posted September 7, 2008 Share Posted September 7, 2008 I If a Chevy rocker ratio is something like 1.4, and a L-motor is 1.5, then that is a substantial amount. I am going to talk to Mike at Delta and see what's goin on What does your cam card say the ratio is? Did you just get that cam for $50? I think I paid around $70 0r $75. It was supposed to be $65. I guess it depends on when you call:? Quote Link to comment Share on other sites More sharing options...
dum-bass Posted September 7, 2008 Share Posted September 7, 2008 What does your cam card say the ratio is? Did you just get that cam for $50? I think I paid around $70 0r $75. It was supposed to be $65. I guess it depends on when you call:? Actually, I never got a cam card with any of these cams for some reason. He just said run it STRAIGHT UP and since I was installing them in the car, I didnt bother with a degree wheel and went by the book. Now that the motor is out of the car, I am using a degree wheel and it seems that STRAIGHT UP may not be what I thought it was. Quote Link to comment Share on other sites More sharing options...
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