 What cam with Megasquirt build, Web Cam, Raby, others |
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| Dtjaden |
 Dec 12 2013, 10:55 PM
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#1
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Member  Group: Members Posts: 232 Joined: 25-May 13 From: Morgan Hill, CA Member No.: 15,915 Region Association: Northern California  |
I am about to start an engine build based on a 2.0 core engine I picked up from a friend. It will be 2056 displacement and I plan to use MS III fuel injection and later MS ignition. This will be used for spirited road driving with an occasional DE event. This is not a daily driver.
One of my concerns is the selection of an appropriate cam for this use. I plan on using as many of the Djet parts as is practical including the intake system but I am planning on having the heads reworked. Head work contemplated includes new valves, seats, springs and mild porting and polishing. I would appreciate and opinions concerning an appropriate cam for the use and configuration as described. Thanks! |
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| Jake Raby |
Dec 13 2013, 06:18 AM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Utilizing the stock plenum and TB will make the biggest impact on which cam is optimum. Using those parts, I'd keep the cam the same as I would for stock D or L Jet. If not you'll fight low speed issues and idle tuning.
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| Dtjaden |
Dec 13 2013, 09:23 AM
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#3
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Member Group: Members Posts: 232 Joined: 25-May 13 From: Morgan Hill, CA Member No.: 15,915 Region Association: Northern California |
Thanks Jake!
QUOTE(Jake Raby @ Dec 13 2013, 04:18 AM)  Utilizing the stock plenum and TB will make the biggest impact on which cam is optimum. Using those parts, I'd keep the cam the same as I would for stock D or L Jet. If not you'll fight low speed issues and idle tuning. |
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| gothspeed |
Dec 13 2013, 12:15 PM
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#4
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Senior Member Group: Members Posts: 1,539 Joined: 3-February 09 From: SoCal Member No.: 10,019 Region Association: None |
Since you are splitting the case I would at least run this Web cam #73 ..... you can easily change the intake in the future to individual ITBs while the engine is still in the car ..... but a cam would be a lot more difficult to change down the road.
QUOTE Good over all performance for engines with stock fuel-injection. Designed for mechanical lifters Volkswagen Type 4 8v & Porsche 914 8v Part #: 00-472 Grind: 73 Intake / Exhaust Valve Lash (Inch): .006" / .006" Valve Lift (Inch): 0.426 / 0.426 Valve Lift (mm): 10.82 / 10.82 Advertised Duration: 262° / 262° Duration @ 0.050": 224° / 224° Lobe Center: 108° / 108° Intake Opens 4° Before TDC Exhaust Opens 40° Before BDC Intake Closes 40° After BDC Exhaust Closes 4° After TDC Valve Timing Is Checked With Zero Valve Lash @ 0.050 Inches Of Valve Lift. |
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