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Old 03-06-11, 10:22PM   #31
SDTempest
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Quote:
Originally Posted by EC View Post
Kaase's engine had a cam that was 257-261 in it and peaked at 6200 making over 800hp. Heads flowed 420cfm.
Type: 55mm Billet solid roller
Duration at 0.050: 261/ 268 deg
Lift: 0.828/0.828
Centerline: 107 deg
Lobe Separation Angle: 107 deg
Installed Position: 104 deg

851.7 hp and 786.2 lb-ft of torque.

FWIW my cam is only 258/268 for my 505 and I expect it to make good power. The more efficient the head and intake the less cam duration is required.
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Old 03-06-11, 10:27PM   #32
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Quote:
Originally Posted by SDTempest View Post
Type: 55mm Billet solid roller
Duration at 0.050: 261/ 268 deg
Lift: 0.828/0.828
Centerline: 107 deg
Lobe Separation Angle: 107 deg
Installed Position: 104 deg

851.7 hp and 786.2 lb-ft of torque.

FWIW my cam is only 258/268 for my 505 and I expect it to make good power. The more efficient the head and intake the less cam duration is required.
Oops the first cam he ran was 257-261, the cam he ran in the competition was the 261-268.
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Old 03-06-11, 10:40PM   #33
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Quote:
Originally Posted by SDTempest View Post
Type: 55mm Billet solid roller
Duration at 0.050: 261/ 268 deg
Lift: 0.828/0.828
Centerline: 107 deg
Lobe Separation Angle: 107 deg
Installed Position: 104 deg

851.7 hp and 786.2 lb-ft of torque.

FWIW my cam is only 258/268 for my 505 and I expect it to make good power. The more efficient the head and intake the less cam duration is required.
BINGO !!
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Old 03-06-11, 10:48PM   #34
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Quote:
Originally Posted by EC View Post
Oops the first cam he ran was 257-261, the cam he ran in the competition was the 261-268.
What was the CI. Was that the Pontiac engine.
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Old 03-06-11, 10:54PM   #35
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Quote:
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What was the CI. Was that the Pontiac engine.
  • Engine Displacement: 507
  • Horsepower: 851
  • Torque: 786 lb-ft
  • Bore/Stroke: 4.310 x 4.350
  • Bore/Stroke Ratio: 0.99:1
  • Rod/Stroke Ratio: 1.49:1
Complete build
http://www.highperformancepontiac.co...ine/index.html
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Old 03-07-11, 12:01AM   #36
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Of course it was right in front of me
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Old 03-07-11, 01:39AM   #37
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Sometimes you need a bigger port to get that mixture in, thats the problem we have now. With n2o you don't have a problem like N/A. You launch that car and that airspeed in the head doesn't have a problem! Was thinking about a home ported set of high ports, they are cheap enough. Just want to make sure they will hold up.
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Old 03-07-11, 01:41AM   #38
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EC, I'd like to see what your car would do with about 14-1, a nitrous cam, and a fogger.
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Old 03-07-11, 03:30AM   #39
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It would be flying. I think the HP would br a good head too. I haven't seen or heard of to many nitrous HP combinations. I think the casting issues are behind Them. It's amazing how many heads we have to choose from.
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Old 03-07-11, 03:52AM   #40
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Quote:
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It would be flying. I think the HP would br a good head too. I haven't seen or heard of to many nitrous HP combinations. I think the casting issues are behind Them. It's amazing how many heads we have to choose from.
Punisher#1 runs 5 teens at 140 in the 1/8th, 8.80 @ 151 on motor, and 8 teens at 172 on spray with highports.

BrandX runs mid 8's on spray with highports IIRC.

I hope to get my junk to eventually run 8's on a single fogger with a small'ish tire.
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Old 03-07-11, 02:23PM   #41
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So, any of you guys think I can reach my 700HP goal with the cam I have ( .688-.688. .272-.276, 108) and the 380 CNC HPs.
Its getting to to point where I need to try and get them finished in time for April.
If I need to but a new cam that would set me back but it could be done.
700HP is about all I want to try for with a stock block even with splayed caps.
I know people have done more but its pushing it NA.
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Old 03-07-11, 06:38PM   #42
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At what lift are they getting 380 cfm. .700-.800 If so I'd say with a .688 lift cam your going to be short. With that duration it's going to want to make peak power around 7200 rpms. If you post the flow numbers it would help. What rocker ratio 1.55 ?
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Old 03-07-11, 09:31PM   #43
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Quote:
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So, any of you guys think I can reach my 700HP goal with the cam I have ( .688-.688. .272-.276, 108) and the 380 CNC HPs.
Its getting to to point where I need to try and get them finished in time for April.
If I need to but a new cam that would set me back but it could be done.
700HP is about all I want to try for with a stock block even with splayed caps.
I know people have done more but its pushing it NA.
Troy the 272-278 numbers are probably ok but I don't like the 108 c/l I would use a 114 or something close to that.
Ken
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Old 03-08-11, 01:50AM   #44
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I will dig out the flow numbers tomorrow if I can but the problem is I do not know if the program is finished at this point.
I do know the 380 cfm is at way higher that .700 lift, look,if they had 380cfm under .700 lift they would have the cat by the tail and there would be dozens of these heads out there right now.
I have been thinking the right cam is somewhere around .725 lift, and 112-114.
Dan picked the cam out to go with pump gas HOs driven to the strip, if he knew I took it to the track on a trailer the cam would have been bigger. But he is old school and likes the 108s.
I run Norris 1.6s but they come out at 1.65 if you measure them.Dan told me so and who am I to argue with him.
I have another roller but its a UD .626- .261-.271 on a 106.
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Old 03-08-11, 03:33AM   #45
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Sounds like more than enough cam for 700hp. I can run it through my simulator if you have the .200" duration numbers. Also need the Flow numbers, port width, height and valve sizes.
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