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Thread: C3 cams on a 10:1 motor

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Posts: 21-30 of 88
2009-12-08 02:31:42
#21
Originally Posted by jagy
Why not just VE with boltons? Easier, faster, cheaper.


And Nissan Ecology Oriented so you could tear up the pavement in Denmark this week with your (ahem, choke...) low carbon footprint! How Politically Correct
2009-12-08 03:23:50
#22
JWT called me back. The C3 cams will clear stock 10:1 comp pistons no problem. They also said they are designed to be dropped in without needing adjustable cam gears but they said if you did adjust the cam timing you wouldn't have to worry about cam-to-piston clearance with normal adjustments. Although they did say you should always double check yourself.
2009-12-08 04:10:57
#23
Hmm...missed that point, I knew from JWT that the C2's cleared no problem and do not need adjustable cam gears either. But you never know about that "extra" 0.026", the C3's lobes are ever so slightly larger.
2009-12-08 13:03:21
#24
Originally Posted by Reedom
but Reece remember I only want about 200whp. Dont you think the list is enuf to give me that with out a 12.5:1 CR or a custom intake manny

plus I cant run that high a CR as the gas we get here is real crap its E10 -10% Ethanol and the octane level is about 89





Hey Ben I remember I made a post about compression loss with high lift cams awhile back. Is there a way to calculate the actual loss with the C3 cams? Just wondering because it may be a good idea to run 12.1 pistons if the cams are going to bring the comression back down to the 11's area,or on the other hand will this loss be so slight it won't be noticable?
2009-12-08 19:30:53
#25
Originally Posted by BenFenner
JWT called me back. The C3 cams will clear stock 10:1 comp pistons no problem. They also said they are designed to be dropped in without needing adjustable cam gears but they said if you did adjust the cam timing you wouldn't have to worry about cam-to-piston clearance with normal adjustments. Although they did say you should always double check yourself.


Thanks alot Ben
2009-12-08 19:32:20
#26
Originally Posted by Topdog781
Hey Ben I remember I made a post about compression loss with high lift cams awhile back. Is there a way to calculate the actual loss with the C3 cams? Just wondering because it may be a good idea to run 12.1 pistons if the cams are going to bring the comression back down to the 11's area,or on the other hand will this loss be so slight it won't be noticable?


I wud also like to kno about this. anymore info on this, anyone.
2009-12-08 20:07:57
#27
Originally Posted by jagy
Why not just VE with boltons? Easier, faster, cheaper.


remember I didnt tell you i was looking the easier, cheaper or faster way out. for me its more about the build and wat i will learn while doing it. As I sed before i will take on a VE build as well but just not right now and it wont be as all out our agressive as the DE with this much work.

this DE build is on my daily driver and remeber I sed it is being done also to prove a point.

I am not worried about the money too much as this build will be done over a period of a year to a year and a half. remember it is a project. the car will be driven in the interim. the build will be in stages, the parts will be purchased for each stage then the car will get worked on in each stage. I will work the head first and then the block. Intake and Exhaust parts have been purchased already.

the drivetrain has been done
supsension has been done
cosmetics is almost done
ignition has been done, however will be modifeid with a MSD Digital 6 Plus.
fuel system is done, however injectors will be added. any thoughts on wat injectors do you guys think should be used.

Originally Posted by TheRealNighthog
exactly. You are wasting a TON of money. It looks like a cut and paste wishlist.


OK, its not a cut and paste wish list, but i want a proper, reliable build, with good parts and this should be able to be daily driven. its not just about making the power but more about the build.

I have this well runing DE already. to get a DE here, its about $1000 plus to wire it in swap the motor. that money could be used to build my DE head and the money used to build the VE head, could be used to build my block. If I didnt have this motor already, i would go VE but I do have the DE motor already, it has not problems and there is some sentmental attachment to it. I promised some honda guys a whoopin with this motor before the VEs were so popular here and I plan to deliver it. My DE, fairly stock was once the king of the hill in my area before the VE and it needs to go back on its throne. I want a VE as well though but for another vehicle.

I dont want to follow the crowd. I want to do something different.
2009-12-08 20:13:44
#28
All this talk of daily driving and C3 cams do not mesh at all. You won't have any power below 4k rpm.
None.
You do realize this?
Idle will also be almost non-existent.

As for your question about injectors. Just go with stock DET injectors (370cc I believe). I think someone else might have suggested it earlier.
2009-12-08 20:18:24
#29
Originally Posted by Topdog781
Hey Ben I remember I made a post about compression loss with high lift cams awhile back.
Do you mind finding that post and linking it here?

Originally Posted by Topdog781
Is there a way to calculate the actual loss with the C3 cams? Just wondering because it may be a good idea to run 12.1 pistons if the cams are going to bring the comression back down to the 11's area,or on the other hand will this loss be so slight it won't be noticable?
I've never thought about having a dynamic compression ratio lower than the static compression ratio due to high duration cams. I can see how that would be possible, but it's a new concept to me and I have no additional information for either of you.
2009-12-08 20:59:18
#30
Originally Posted by BenFenner
All this talk of daily driving and C3 cams do not mesh at all. You won't have any power below 4k rpm.
None.
You do realize this?
Idle will also be almost non-existent.

As for your question about injectors. Just go with stock DET injectors (370cc I believe). I think someone else might have suggested it earlier.


Is that wat JWT sed Ben

I will not say no power below 4k but I am aware that I will lose some power down low, however this is wat I was advised by several persons including Andreas Mikos and some local "Gurus". I am open for other recommendations though. thats always good. what cams would u say Ben

have you tried the C3's before Ben. I will try to tune out the cams with came gears but i find a lopey idle nice sounding. Ben will this affect my A/C and power steering alot.

I also will be runnig a VE oil pump and and Aluminum Rad from Mishimoto to complete the cooling aspect.

I have access to some VE injectors. these should be good right?
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