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Cam options for the 3.4 DOHC are few and far between. You could possibly have Crower or some other company make a solid billet cam set custom for your motor, but thats going to cost anywhere from $1000-2000. The alternative is to have the stock cams reground for a better profile. Lunati will NOT do them, same goes for Crane. A company in California will do them however for around $500. You can contact them on thier website, Cadillac Hotrod Fabricators.
UPDATE 6-8-05
I haven't verified this but a member on the forum has noted that Crower will do the regrinds for 400.
UPDATE: 6-29-07
Fieromadman has found another source for cam regrinds. Has done three sets of DOHC cams that worked excellent. Looking at around 100 a cam.
Steve Long Racing Cams INC. 951-273-0816
(Read a recent thread about cam regrinds)
Cam Timing
Because the cam gears are not keyed, the options for cam timing are nearly infinite. While this can cause a problem for the novice trying to set the cam timing, it also allows great flexibility for those with more experience. First, I must add that any painted timing marks are to be ignored. To learn more about how to set the cam timing, go here.
It has been over a year now that the 13 degree exhaust retard spread across the internet as an easy way to get power out of this motor. It seems that another person has experimented with the timing on a ported engine mated to the automatic trans. It retains the 13 degree aspect but advances the intake cam as well to lower the powerband from what we had already tried. I hope this is right, 7 degrees advanced on the intake, 6 degrees retarded on the exhaust. As of now I do not know where this lines up the timing mark for 91-93, so you are on your own for figuring it out. I do however have a better picture to show the timing mark for the 10 and 13 degree timing. Basically, 10 degrees is what I thought 13 was originally. I am now running 13 on my car but the idle is a hair rougher than with 10.
Stock Timing
10 Degree Retard
13 Degree Retard
Update: 6-8-05 I have now tried 6 advance intake / 6 retard exhaust on a 94 cutlass and my 91 grand prix. The cutlass is an automatic, and was timed to stock from the belt stretch timing of -8/-8 rear bank, -4/-2 front bank. This obviously made the car idle and run better than before. The 6/6 timing was then applied. Wow...simply amazing for an automatic. The powerband starts lower, idle is smoother than stock timing, and low end is increased a nice amount. Top end was helped out as well over stock though with the auto, stock shift points don't go as high as you can with the manual. The owner also noted an increase in gas milage though I also tuned the chip with this timing done. I am testing the gas milage in my car now.
6/6 timing on a manual car is a different animal, because instead of shifting at 6200, I usually went to 6600 or so (power dropped after 6600 with 13 degree retard on my motor). My car now only likes to make power to 6200 or so and then drops off noticably. The low end is a hell of a lot nicer and the exhaust note when I cruise around at 1500 is smoother. It no longer feels like its working hard below 2500
I am going to try some more settings out later after I tune my car how it sits and compare gas milage.
If you are wondering how I am able to accurately set the cam timing to 6/6, check out this product on our store. DOHC Timing Tool. I highly recommend this tool as it has made my life easier on all the cam settings I want to try out.
UPDATE 6-8-05
I haven't verified this but a member on the forum has noted that Crower will do the regrinds for 400.
UPDATE: 6-29-07
Fieromadman has found another source for cam regrinds. Has done three sets of DOHC cams that worked excellent. Looking at around 100 a cam.
Steve Long Racing Cams INC. 951-273-0816
(Read a recent thread about cam regrinds)
Cam Timing
Because the cam gears are not keyed, the options for cam timing are nearly infinite. While this can cause a problem for the novice trying to set the cam timing, it also allows great flexibility for those with more experience. First, I must add that any painted timing marks are to be ignored. To learn more about how to set the cam timing, go here.
It has been over a year now that the 13 degree exhaust retard spread across the internet as an easy way to get power out of this motor. It seems that another person has experimented with the timing on a ported engine mated to the automatic trans. It retains the 13 degree aspect but advances the intake cam as well to lower the powerband from what we had already tried. I hope this is right, 7 degrees advanced on the intake, 6 degrees retarded on the exhaust. As of now I do not know where this lines up the timing mark for 91-93, so you are on your own for figuring it out. I do however have a better picture to show the timing mark for the 10 and 13 degree timing. Basically, 10 degrees is what I thought 13 was originally. I am now running 13 on my car but the idle is a hair rougher than with 10.
Stock Timing
10 Degree Retard
13 Degree Retard
Update: 6-8-05 I have now tried 6 advance intake / 6 retard exhaust on a 94 cutlass and my 91 grand prix. The cutlass is an automatic, and was timed to stock from the belt stretch timing of -8/-8 rear bank, -4/-2 front bank. This obviously made the car idle and run better than before. The 6/6 timing was then applied. Wow...simply amazing for an automatic. The powerband starts lower, idle is smoother than stock timing, and low end is increased a nice amount. Top end was helped out as well over stock though with the auto, stock shift points don't go as high as you can with the manual. The owner also noted an increase in gas milage though I also tuned the chip with this timing done. I am testing the gas milage in my car now.
6/6 timing on a manual car is a different animal, because instead of shifting at 6200, I usually went to 6600 or so (power dropped after 6600 with 13 degree retard on my motor). My car now only likes to make power to 6200 or so and then drops off noticably. The low end is a hell of a lot nicer and the exhaust note when I cruise around at 1500 is smoother. It no longer feels like its working hard below 2500
I am going to try some more settings out later after I tune my car how it sits and compare gas milage.If you are wondering how I am able to accurately set the cam timing to 6/6, check out this product on our store. DOHC Timing Tool. I highly recommend this tool as it has made my life easier on all the cam settings I want to try out.
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