Well you should choose cams based on where you want your power to be at and your turbos flow sorta....well to just answer your question you can run your stock cams and be fine. They may not make as much power as upgraded cams will but if you chose poorly then they may. Hope this helps some at least.

kspharris said:

Well you should choose cams based on where you want your power to be at and your turbos flow sorta....well to just answer your question you can run your stock cams and be fine. They may not make as much power as upgraded cams will but if you chose poorly then they may. Hope this helps some at least.

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for the most part I am looking to reach atleast 300whp. Of coarse it would be nice to obtain more, but can you give me some scenarios of flow and what cam?

captain_kurt said:

As some of you may know. I am doing a build for my building an engine it is 2.4 EDZ build, is it okay to keep my 420a cams in it? I am also boosting this engine as well. I know the cams are very beneficial to the performance of the engine. Down the road I will definitely put upgraded cams in it. Should I go straight to upgrading cams or should I keep the current ones and upgrade later? All and any opinions or comments would be much appreciated?


This may or may not affect the situation: I am for sure putting new srt4 valve springs and retainers in it. Its mainly the cams and the valves that I am deciding to replace or keep.

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yes you can run stock cams and valves with forced induction. for better turbo spooling and for more power gains i suggest getting at least a stage one or two cam it will beneficially compliment the upgraded springs and retainers.

upgraded valves that are overzised will help you with air flow into and out of the cylinders. polished valves will increase flow and reduce drag and turbulence increasing efficiency.

to check out my cylinder head build click the link:
[ame=http://www.youtube.com/watch?v=YFDJkEE1AJ4]420A performance engine build part 4 - YouTube[/ame]

captain_kurt said:

for the most part I am looking to reach atleast 300whp. Of coarse it would be nice to obtain more, but can you give me some scenarios of flow and what cam?

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flow numbers are determined by testing the intake and exhaust port for flow rate with the valves open at peak lift. giving scenario flow numbers is very difficult to do. best thing to do would have the head cfm'd at a machine shop.

BlackKnight2013 said:

yes you can run stock cams and valves with forced induction. for better turbo spooling and for more power gains i suggest getting at least a stage one or two cam it will beneficially compliment the upgraded springs and retainers.

upgraded valves that are overzised will help you with air flow into and out of the cylinders. polished valves will increase flow and reduce drag and turbulence increasing efficiency.

to check out my cylinder head build click the link:
420A performance engine build part 4 - YouTube



flow numbers are determined by testing the intake and exhaust port for flow rate with the valves open at peak lift. giving scenario flow numbers is very difficult to do. best thing to do would have the head cfm'd at a machine shop.

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you are a life saver! This is the type of answer I have been looking for awhile. I was never sure whether or not if the stock cams would be compatible with this setup or not, but now that you give that information I think I will atleast go with stage 1 cams.

captain_kurt said:

you are a life saver! This is the type of answer I have been looking for awhile. I was never sure whether or not if the stock cams would be compatible with this setup or not, but now that you give that information I think I will atleast go with stage 1 cams.

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your welcome. stage one cams will help with a little power increase and with your setup. any time you run a stage 2 cam or hight (i.s. stage 2 3 or 4) its highly recommended to upgrade springs and retainers. a stage one cam will give you a slight loap at idle but not noticable. with a little bit of a higher lift profile you will flow a little more air.

i hope you liked the video link.