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Author Topic: eddybrock rpm cam  (Read 499 times)
mxlplx71
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eddybrock rpm cam
« on: June 27, 2008, 08:39:13 PM »

anyone use this with a low compression 440 (76)
Duration at 0.006" Lift: Intake: 300° Exhaust: 308° 
Duration at 0.050" Lift: Intake: 238° Exhaust: 246° 
Lift at Cam: Intake: 0.320" Exhaust: 0.330" 
Lift at Valve: Intake: 0.480" Exhaust: 0.495"
Timing at 0.050" lift: Open Close
Intake: 14° BTDC 44° ABDC
Exhaust: 58° BBDC 8° ATDC
Centerlines: Lobe Separation - 110° Intake Centerline - 105°
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speeder440
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Re: eddybrock rpm cam
« Reply #1 on: June 27, 2008, 09:27:06 PM »

  Sad  thats not for low compression it won't run till you hit over 3300 rpms,,3500stall or 4 speed and higher than 10 to1.
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mxlplx71
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Re: eddybrock rpm cam
« Reply #2 on: June 27, 2008, 10:07:25 PM »

what would you suggest for idle to 5500, using shuemaker headers and rpm intake, 800 eddelb, 3.55 gear ,2800stahl, likely to stay low compression.
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ucdcrush
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Re: eddybrock rpm cam
« Reply #3 on: June 28, 2008, 09:16:40 AM »

It may not be ideal for your situation but I would never say it wont run until 3000+ RPM. I am using a slightly bigger cam (245@.050" I/E) with compression under 9, 3.55 gears and 3000 stall converter in a Dart, I am driving on the street. No regrets, sounds nice, goes nice. Smiley
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speeder440
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Re: eddybrock rpm cam
« Reply #4 on: June 28, 2008, 02:27:25 PM »

 Smiley I think you need to stay with something like 280*,but a cam in 300*/308* will kill torque that you need.9to1 will like 278*or 282* the 284* likes closer to 10to1 Roll Eyes the 292*cam likes at least 10.5. Cheesy I talked to Dick Landy about 3 years before he pass about a cam I had it was 306*/306* 235*@.050" with 472"lift and 1.5r rockers the cam was for a 4speed.Dick said,"11to1 compression is needed if not 11.5 compression,it was a slow dog when I put a Auto.transmisson&a2800stall with 10to1compression, Dick set me strate with his 282*/294* 480"/.504" made all the differentance.CraneCams grind but it was DLI cam,I tryed to get it from Crane but they said I had to get it from DLI over $280
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grudd440
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Re: eddybrock rpm cam
« Reply #5 on: June 29, 2008, 03:06:21 AM »

i put a comp xe274 in my low compression 440.
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440 DusterDemon

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Re: eddybrock rpm cam
« Reply #6 on: June 29, 2008, 10:07:35 AM »

 Edelbrock says that a minimum of 9.5:1 is required. I'm running that cam and love it but thats with 10.5:1.  Did you look at the Performer cam?  It's a little milder for lower compression.
The RPM has a fairly choppy idle and I get around 10"hg at idle. Long video but here it is idling with this cam:

][url=http://s115.photobucket.com/albums/n287/451valiant/?action=view&current=DSCI0010.flv][/url]
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mxlplx71
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Re: eddybrock rpm cam
« Reply #7 on: June 29, 2008, 02:37:15 PM »

sweet ride, sounds mean. 4 speed
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mrpatel
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Re: eddybrock rpm cam
« Reply #8 on: July 01, 2008, 12:30:45 AM »

MP484 114
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mxlplx71
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Re: eddybrock rpm cam
« Reply #9 on: July 01, 2008, 12:40:29 PM »

mrpatel, whats your compression ratio?
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mrpatel
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Re: eddybrock rpm cam
« Reply #10 on: July 02, 2008, 08:17:32 AM »

It is around 9.3 to 9.5 to 1.
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jp260z
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Re: eddybrock rpm cam
« Reply #11 on: July 04, 2008, 12:02:57 AM »

Boy that Valiant sounds good.  4 speed

The RPM cam needs an adjustable valvetrain though, correct?
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sassy383
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Re: eddybrock rpm cam
« Reply #12 on: July 04, 2008, 12:42:21 AM »

i got a 383 with rpm cam, intake, and heads, the compression ratio is pretty low in mine (8.5-9.0)  and i am having a low vacuum problem. i am pretty sure it is due to the low compression ratio. at least that is what edelbrock told me. i would not use this cam unless  you have at least 9.5 just as edelbrock recommends.
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speeder440
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Re: eddybrock rpm cam
« Reply #13 on: July 04, 2008, 12:52:06 AM »

 Smiley They sound good really good wth under 9.5 compression but it needs 278*or 284*for the high to make it zippy. Embarrassed or go head and see for your self I did.  !nanr but I was thumping.
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ucdcrush
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Re: eddybrock rpm cam
« Reply #14 on: July 04, 2008, 08:47:52 AM »

The RPM cam needs an adjustable valvetrain though, correct?

It will work fine with a non adjustable valvetrain.
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