the one problem i am having with the intake is that i dont have any room for the tb and ic piping going to it. to close the brakes. so i think if i cut the end and shorten them up i will get a a tb with the ic going to it. maybe like 1/4 to maybe 1/2 inch from the first runner...
you bringing this car to capital raceway in august, it will be nice to see another 1st gen there beating on 2nd gen.
the one problem i am having with the intake is that i dont have any room for the tb and ic piping going to it. to close the brakes. so i think if i cut the end and shorten them up i will get a a tb with the ic going to it. maybe like 1/4 to maybe 1/2 inch from the first runner...
Tight radius 45deg/90deg aluminum tube from the plenum to clear the brake hardware and then mount the throttle body to the end of the tube? Probably be a pain to sort out throttle cable linkage though, but its a thought. Oh yeah, Id probably trim off about an inch/inch and a half of the left side of that plenum...still a bit too much overhang in my opinion...probably make the cut a bit angled too (start at 2-3" off the top edge and angle down to 1-1.5" off the bottom edge) to help a bit with air velocity and mitigate some of the turbulence at that furthermost intake runner.
Frank Dekker (Dutch626) had sent me a gift of his 2.0l carb cam years ago. There was a thought of seeing if it was suitable for a decent regrind for the N/A F2. The lobes were fatter/wider but seemed to be similar height to the F2/F2t cam. I had figured since regrinding makes the cam physically smaller and can create issues if taken too far, starting from a cam that had "extra" material would offer a better/more aggressive regrind with less issues. I never did get to it and passed the cam on to "benjamin"(?) (young fellow from Florida, got himself banned from the site by doing something silly).
Aside from searching around for the somewhat rare 2.0l carb cam....has anyone looked into building up added material (high nickel content welds) on to the stock cam lobes and then regrinding to whatever specs are desired? I understand that this is a fairly well understood technique, though it seems not very popular. I havent looked into it myself, so I am not sure if there are pitfalls to this technique, but if its viable, there sure are a lot more F2/F2T cams floating around.
The duration on the 2.0L cam is fine for turbo, yes the 2.0L cam has the same lobe lift but additional lift is only usefull when the duration is already at the limit of driveability.
Aside from searching around for the somewhat rare 2.0l carb cam....has anyone looked into building up added material (high nickel content welds) on to the stock cam lobes and then regrinding to whatever specs are desired? I understand that this is a fairly well understood technique, though it seems not very popular. I havent looked into it myself, so I am not sure if there are pitfalls to this technique, but if its viable, there sure are a lot more F2/F2T cams floating around.
Gavin
Biggest downside is usually the expense...I've thought about it before, seems like I looked into it at one point, and it was something like 15 per lobe to weld, then the regrind cost on top of that, from a couple different companies, but it has been a few years since I've checked, before colt cams was as well known here as well...
As promised here are a couple of pictures of the FE 12V cam (part# FE4J) compared to the F2 12V (part# F201)
Intake lobes, FE4J on right.
Exhaust lobes, FE4J on right.
As you can see there is a fair bit more dwell on the lobes meaning the the valves will be open at useful lift for longer.
My thoughts on cams as mentioned earlier is that lift is worth much less than duration.
An engine needs time when at high RPM's in order to fill the cylinder.
More duration is more time.
Adding lift should only come into it when the duration is causing too much low RPM torque loss.
Or when flow bench testing and intake analysis shows a need for it.
Gavin i like your idea with the pipe on the intake... Now does anyone have a idea on if i can, were i would be able to get a cone like or funnel like aluminum, Like a pieace that you would put in IC piping to go from one size to another?
this is the idea im gonna go with, but like i said earlier i am looking for a alum cone to weld the pipe on, that instead of going 2.75 inch to 5 it works up to the intake size.
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