LPE 219 cam question
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
The LPE 74219 cam is....
Lift: Intake, 0.525" / Exhaust, 0.525"
Duration: Intake, 219*/ Exhaust 219*
Lobe Seperation Angle: 112*
That is with 1.5:1 rockers. With 1.6:1 rockers it changes to more like this.
Lift : Intake, 0.560" / Exhaust, 0.560"
Duration: Intake, 221*/ Exhaust 221*
Lobe Seperation Angle: 112*
I am running mine with 1.6 rockers.
Lift: Intake, 0.525" / Exhaust, 0.525"
Duration: Intake, 219*/ Exhaust 219*
Lobe Seperation Angle: 112*
That is with 1.5:1 rockers. With 1.6:1 rockers it changes to more like this.
Lift : Intake, 0.560" / Exhaust, 0.560"
Duration: Intake, 221*/ Exhaust 221*
Lobe Seperation Angle: 112*
I am running mine with 1.6 rockers.
Pro
Joined: Jan 2001
Posts: 681
Likes: 2
From: Newton (Wichita Area) Kansas
Re: LPE 219 cam question (85_togo)
The LPE 219 cam is a really good cam. I played around on Desktop Dyno 2000 last night. I found that it would make between 10 and 15 more hp and ft-lbs of torque every where in the rev range compared to my current cam (Comp Cams XE268H-10 = 224/230 dur at .050, .508/.512 lift, 110 LSA) and it would idle better because of the higher LSA and lower intake duration. At first I thought it was because of the TPI setup but when I switched to a 750 cfm carb and a single plane intake on the desktop dyno the power difference remained the same. I was really surprised that a cam with such low duration numbers could make so much power.
My longblock is pretty far from stock too. It's a 383 with 200cc Dart Iron Eagle heads yet this mild duration cam would work very well.
A lot of forum members have had very good results with this cam on stock shortblocks with Super Ram intakes. It's a well thought out combination.
[Modified by jmr302, 11:46 AM 6/17/2002]
My longblock is pretty far from stock too. It's a 383 with 200cc Dart Iron Eagle heads yet this mild duration cam would work very well.
A lot of forum members have had very good results with this cam on stock shortblocks with Super Ram intakes. It's a well thought out combination.
[Modified by jmr302, 11:46 AM 6/17/2002]
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
A lot of forum members have had very good results with this cam on stock shortblocks with Super Ram intakes. It's a well thought out combination.
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Thread Starter
Race Director
Joined: Jul 2001
Posts: 14,604
Likes: 3
From: Glendale, AZ
Re: (scorp508)
what defines a "WILD" cam? more lift or more duration, or a combination of both? i ask because if i set up with 1.5s come emmissions time, i can go back to the 1.5s and when i am done, switch to the 1.7s and go back to goofy.
any comments to that?
any comments to that?
Pro
Joined: Jan 2001
Posts: 681
Likes: 2
From: Newton (Wichita Area) Kansas
Re: (85_togo)
*I think* duration has the biggest effect on driveability and probably emissions. Lobe Seperation Angle affects valve overlap and therefore affects idle quality.
[Modified by jmr302, 2:49 PM 6/17/2002]
[Modified by jmr302, 2:49 PM 6/17/2002]
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: LPE 219 cam question (jmr302)
I just received an email from ComnpCams and they have posted a new listing of the dyno results of their Xtreme Energy line of camshafts, both flat tappet and hydraulic roller.
You might want to take a look. http://www.compcams.com/information/...ts/DynoSheets/
Hope this helps.
Jake
You might want to take a look. http://www.compcams.com/information/...ts/DynoSheets/
Hope this helps.
Jake
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: (AS84)
I like mine as well. I think most of my driveability issues are in my 58mm TB.
So my MAF was the cause not the TB. Problem was that the failing MAF didn't throw any code.
Hope this helps.
Jake
[Modified by JAKE, 4:24 PM 6/17/2002]
Melting Slicks
Joined: Apr 2002
Posts: 3,019
Likes: 0
From: down that one road next to that big tree
Re: (JAKE)
i have a hard time believing the 219 makes more power than the larger comp cam. the zz4 head won't flow anymore over .500 lift so the slightly higher lift couldn't be what did it. i also have desktop dyno & seriously do not like this program for injected engines. it's even boarderline for carbs. you can't program in intake runner length, overall size, the hyd roller cam setting isn't accurate as you wind up seeing more power than you really have. how about exhaust? you can set primary size, length, or anything detailed. i mean it was fun to play with the first day i had it but the program is just lacking any detail to give true HP numbers.
Pro
Joined: Jan 2001
Posts: 681
Likes: 2
From: Newton (Wichita Area) Kansas
Re: (gtsyellow)
I think the program is handy to use for changes in cyl head flow and cams assuming everything else stays the same. I use the induction flow cfm and exhaust manifold type as correction factors after I've dyno'd a car. That way I can get the torque curve looking more like the real thing. After I've done that the program is ONLY useful for comparing camshaft changes and cyl head flow changes.
I can't explain why the LPE 219 cam made more power on my simulated 383. Maybe someone else can explain why even just guess.
Comp Cams XE268H-10
224/230 deg dur at .050
.508/.512 max lift (1.6:1 rockers)
110 lobe sep angle
vs
LPE 219
219/219 deg dur at .050
.560/.560 max lift (1.6:1 rockers)
112 lobe sep angle
I will experiment with Dyno2000 tonight and see if the power difference was entirely from the .052/.048 lift differential. If it was only due to the lift differential AND the ZZ4 heads don't flow well over .500 lift then the Comp Cam grind might be a better choice.
I can't explain why the LPE 219 cam made more power on my simulated 383. Maybe someone else can explain why even just guess.
Comp Cams XE268H-10
224/230 deg dur at .050
.508/.512 max lift (1.6:1 rockers)
110 lobe sep angle
vs
LPE 219
219/219 deg dur at .050
.560/.560 max lift (1.6:1 rockers)
112 lobe sep angle
I will experiment with Dyno2000 tonight and see if the power difference was entirely from the .052/.048 lift differential. If it was only due to the lift differential AND the ZZ4 heads don't flow well over .500 lift then the Comp Cam grind might be a better choice.
