NewGuy Posted December 10, 2008 Share Posted December 10, 2008 Ok so maybe you guys will tell me to GTFO But i am looking at getting a cam re profiled to make the car run better idle wise and power wise, giving it a longer duration and timing. I was just wondering after i have had the came re profiled and i am read to to put in on the car. How do i go about it? Can i just pull the old cam off put the Sprocket on its holder and lay the new one in and bolt it up the same way the old one came out? Bit of a noob but i haven't done alot in the area Please help and give me some sort of idea? Quote Link to comment Share on other sites More sharing options...
tortron Posted December 10, 2008 Share Posted December 10, 2008 there would be timing marks on the sprocket / cam somewhere install them in the same place that the other one was when you removed it -probably want to slam some grease on it when you install it then runt the engine over by hand to make sure its not gona slam /fist your valves through the piston top Quote Link to comment Share on other sites More sharing options...
NewGuy Posted December 10, 2008 Author Share Posted December 10, 2008 there would be timing marks on the sprocket / cam somewhereinstall them in the same place that the other one was when you removed it -probably want to slam some grease on it when you install it then runt the engine over by hand to make sure its not gona slam /fist your valves through the piston top Soundz pretty straight forward Quote Link to comment Share on other sites More sharing options...
Insani-T Posted December 10, 2008 Share Posted December 10, 2008 there would be timing marks on the sprocket / cam somewhereinstall them in the same place that the other one was when you removed it -probably want to slam some grease on it when you install it then runt the engine over by hand to make sure its not gona slam /fist your valves through the piston top Soundz pretty straight forward Yeah it always does Wouldnt you have to dial it back in? Or am I full of shit? Quote Link to comment Share on other sites More sharing options...
tortron Posted December 10, 2008 Share Posted December 10, 2008 maybe - my experience is only in swapping stock ones probably would as the timing would be slightly different Quote Link to comment Share on other sites More sharing options...
NewGuy Posted December 10, 2008 Author Share Posted December 10, 2008 Im pretty sure that id have to change all the shims etc? Cause the'd have to grind my cam Quote Link to comment Share on other sites More sharing options...
NewGuy Posted December 10, 2008 Author Share Posted December 10, 2008 Yea i would have thought the timing would change a little bit. Quote Link to comment Share on other sites More sharing options...
Insani-T Posted December 10, 2008 Share Posted December 10, 2008 I would also get new lifters, they aint worth that much. Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted December 11, 2008 Share Posted December 11, 2008 new/reground lifters, may need a vernier cam sprocket to dial it in to it's optimum etcet c new cam will liekly make your carbs roll alot more of the potential thus = profit Quote Link to comment Share on other sites More sharing options...
Gaz Posted December 11, 2008 Share Posted December 11, 2008 You want the followors matched to the cam.. Get the person who grinds the cam to do the followers also. use engine assembly lube or proper cam lube from kelford instead of grease. Use lube without (mobosomeshit ask KKK lol) Gaz Quote Link to comment Share on other sites More sharing options...
NewGuy Posted December 11, 2008 Author Share Posted December 11, 2008 So would i best off giving my head to a machine shop and get them to do the Cam,Lifters, Shims? Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted December 11, 2008 Share Posted December 11, 2008 just get your cam done by snow at kiwicams in palmy. tell him that you've got standard cam gears and see what he recommends you do, and do it as he is a camshaft god. he'll sort your lifters and shit. then jsut whack it in with assembly lube, shim the head up (easy) and bed the cam in as per his instruction Quote Link to comment Share on other sites More sharing options...
forced Posted December 11, 2008 Share Posted December 11, 2008 It all depends on what engine it is that you're modding. Steve Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted December 11, 2008 Share Posted December 11, 2008 Is it overhead cam? Is it mechanical tappet? When you get a nice lumpy grind, the munch a buch of material off the heel of the cam shafts base circle. This means you will either need to regap your tappets, (Mechanical) or fit lash caps to your valves, or get longer push rods. Also when they grind it, the alter the the point in the camshafts rotation (number of degrees) where the valve will reach .050 lift. This means you'll need to "dial in the cam" so that the valve reaches 50 thou of lift at the number of segrees before or after TDC that you cam card (from the grinder specifes) If you run your cam a little bit retarded, then the engines powerband will be shifted further up the rev range. If your cam is advanced, the power will be lower in the rev range. ALSO, forget about getting a smoother idle. A bad boy cam will make your idle shit. Thats the trade off for more grunt. Quote Link to comment Share on other sites More sharing options...
cubastreet Posted December 11, 2008 Share Posted December 11, 2008 yeah if you want more power and still good idle and low end, go for more lift rather than more duration. Will make the valvetrain wear faster though. Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted December 11, 2008 Share Posted December 11, 2008 fuck yeah grumpy as cam idle and low down power ftl i drove minimans mini yesterday and it's a pain in the arse to get off the line, let alone quietly Quote Link to comment Share on other sites More sharing options...
cute wee gem Posted December 11, 2008 Share Posted December 11, 2008 Worth it though. How is young Pete's Mini anyway? Quote Link to comment Share on other sites More sharing options...
Gaz Posted December 11, 2008 Share Posted December 11, 2008 Saw lash caps mentioned above. Took me yonks to find anyone who had them.. Kelford is the place to go... No other cam "specialist" I talked to had any, or used any, and some didnt even know what they were. Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted December 11, 2008 Share Posted December 11, 2008 Worth it though. How is young Pete's Mini anyway? tis men. gmans tuning the 45 as he gets time between jobs. is thinking it may be too small lol. think he's onto the largest venturis you can get now. Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted December 12, 2008 Share Posted December 12, 2008 I was thinking about this today. You haven't mentioned the breed of your vehicle for said cam upgrade. Your sig reps triumph. IF you are talking about modding a triumph, I have some food for thought. A mate of mines old man is a triumph guru. He's been working on them forever. A regular customer of his has a really tidy Vitess. (spelling) He wanted more grunt, and talked about fiting a bigger cam. Mates dad said no way, want more go, fit a bigger engine. Customer ignored, got a bigger cam. paid some onkeys to fit it. They started the old girl up, and it broke a rocker arm. They replaced it, broke more. Replaced them, kept breaking them. Took it back to mates dad. Turns out that the extra lift was making the valves hit the block deck and breakoing the rocker arms. The fix was to strip the engine, and have deeper reliefs cut into the block deck. This was on a triumph 1.6ltr 6cly. But it's something to consider if your engine is over engineered, and under designed as a lot of pommy stuff was. Quote Link to comment Share on other sites More sharing options...
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