Speedvision new billet cams 265 degrees and uprated valve springs
- Thread starter Barretta
- Start date
speedvision
Member +
not entirely correct...if the springs as i said before are tensioned at a higher than usual figure it can cause premature wear of the cam lobes over a short period of time...the springs are already very stiff and if tensioned more than normal will cause it to wear...if whoever is installing the cams and not sure of what pressure to put the springs at i strongly suggest using ur stock springs so you wont cause premature wearing of the lobes....many have used the cams with stock springs,my springs and cruise springs..
sam
Dan-The-Glanza-Man
Member +
but how can you make the springs harder then they are there direct fit its not like you putting a washer in to push the spring down more that bits confused me sam lol sorry
D3N0
Member +
My Problems with this Setup.
i feel i am have done the most miles with this setup on my car (13,549 miles to be exact), and yes it has given me problems, noticing how bad at the dyno. the afr looked like a tremer reading (inconsistently up and down). so off with the head, noticed that the cam lobe lips had worn down a touch. cams out now, all lobe tips have passed there protective layer (meaning the cams can not be reused without some work). looking down at the shims now, the middle looked concave like an inverted dome (you could feel it too) the cams had been bashing into the shims. you do the math, i now have a fully performance built head equalling Fuk'D. i haven't inspected the rest of the head as at the time it was apparent id have to replace it with a standard head.
so you do the math again... a head totalling £1050 being destroyed due to a set of £80 springs, my advise it to stick with the standard springs or get the cruise ones as something aint quit right with sam's springs.
The Cams however, hopefully Sam can do me a Deal on a new set (for the student price of free would be nice
).
ive spend near £3000 with Sam, all items have been fine. but these springs are a no go for me, which has been a sad and costly mistake.
i feel i am have done the most miles with this setup on my car (13,549 miles to be exact), and yes it has given me problems, noticing how bad at the dyno. the afr looked like a tremer reading (inconsistently up and down). so off with the head, noticed that the cam lobe lips had worn down a touch. cams out now, all lobe tips have passed there protective layer (meaning the cams can not be reused without some work). looking down at the shims now, the middle looked concave like an inverted dome (you could feel it too) the cams had been bashing into the shims. you do the math, i now have a fully performance built head equalling Fuk'D. i haven't inspected the rest of the head as at the time it was apparent id have to replace it with a standard head.
so you do the math again... a head totalling £1050 being destroyed due to a set of £80 springs, my advise it to stick with the standard springs or get the cruise ones as something aint quit right with sam's springs.
The Cams however, hopefully Sam can do me a Deal on a new set (for the student price of free would be nice
).ive spend near £3000 with Sam, all items have been fine. but these springs are a no go for me, which has been a sad and costly mistake.
_GAZ_EP85_
Member +
ahh deano that's not good mate, i used cruise spring's on my engine and there spot on, the head it dead quiet, un like some engine's i have heard where it sounds like a bag of nut's are ratterling around in there
D3N0
Member +
Thing is Gaz, i knew my engine was a tad loader than normal. but you'd expect that, due to the work that had been done.ahh deano that's not good mate, i used cruise spring's on my engine and there spot on, the head it dead quiet, un like some engine's i have heard where it sounds like a bag of nut's are ratterling around in there
Was at the dyno a week before last monday when this became apparent, to say i was pissed would be a major understatement.
_GAZ_EP85_
Member +
spec the amount of time you been waiting to get it set up, what have you had done that should make the engine sounds loider tho dude?
13k on that engine, your gonna need a rebuild soon dude
take it you got the clutch amd f-con all sorted now mate?
13k on that engine, your gonna need a rebuild soon dude
take it you got the clutch amd f-con all sorted now mate?
i dont use speedvision cams or springs,and mine gives that tappy noise,nothing to wory about as far as am aware,when work is carried out on the head and after market cams and springs are used am told youl get that.,i got abit worried also when i heard mine but its grand and goes proper wel
Shorty
Member +
13k on that engine, your gonna need a rebuild soon dude
why would you need a rebuild after 13k gaz? iv done 10k on my forged lump and its spot on. is there something im missing about forged engines
?
danturbo4311
Member +
this thread has got me a bit worried as i have a spare head with speedvision springs & billet cams, the head has been port & polished, skimmed, valves re-seated etc. so i have spent alot of money & do not want to bugger it up, just need to finish off shimming it up & its ready to go on. When fitting the gears I also had a few problems with the cams not being machined properly where the gears sit I needed to lathe as they were to thick & also where the cam pulley sits needed lathing to get the cam pulley on as others have already noted.
Deano what company did the work on your head & any idea on what your valve clearances were when you installed the cams, also anyone else who had problems with there cams what were your valve clearances & spring pressure.
Deano what company did the work on your head & any idea on what your valve clearances were when you installed the cams, also anyone else who had problems with there cams what were your valve clearances & spring pressure.
Darren fitted my Power Enterprise Super Kevlar II Timing Belt on my forged engine, and the timing was spot on, as i sad my engine only done less than 1700. When i took the head off and look at the belt, The belt was worn badly. Sam to me something is not right with those billet cams when fitting the gears on it.
speedvision
Member +
i am trying to figure out what the belt has to do with the cam?
i do not make the cam gears...u use ur stock gear on the cams ..if the belt is work isnt it something wrong with ur belt or the gear? correct me if i am wrong....some folks had to file the cam to fit the gears on but it wasnt a problem for them ..sometime the machining on the cams where the gears go onto are not exact hence the filing...
if ur cam gear didnt go on correct then ur saying it may mess up the belt?
the machine shop putting on the gear should make sure the gear goes on properly before installation.
my concern is the base pressure being used on the springs...if a correct pressure is not being used it will wear the cam and i am sure all would agree with me on that...those that have used the correct figures havent got any problem and if they can put those figures up we would have an idea what to work with...but on the other hand if u dont kno what pressure to use then go to stock springs not to wear down the lobes.
sam
speedvision
Member +
BallıGee
Member +
there is a problem with the set of cams i got the intake cam gear has a sizors gear you press one on the cam and then put the spring in and then the second gear sits on top and secured with c clip where the cam has been machined it is two differnt sizes which is correct but has not been machined enough so what happens is the gap between the gears is two big
i had mine machined down
the other is when these where made metal fileing where left in the oil gallary alot of fileings which had turned to rust and i was very anoyed that the slackness of some manufactures
apart from that my cams are fitted with correct clearance and i dont have any ratling noises and no excess ware on lobe so far 400 miles in
regards gee
i had mine machined down
the other is when these where made metal fileing where left in the oil gallary alot of fileings which had turned to rust and i was very anoyed that the slackness of some manufactures
apart from that my cams are fitted with correct clearance and i dont have any ratling noises and no excess ware on lobe so far 400 miles in
regards gee
speedvision
Member +
thankyou for ur experience ..much appreciated
can you tell me what springs your using and what pressure ur using if u have the info?
sam
with the amount of money spent on an item, you expect it to be what it says "direct fit", you shouldnt have to machine down, or file down an engine component, its a vital piece of the engine so you expect it to be built to the very best of quality.
If i ordered a cam set and it turned up were i would have to file it down etc, id send it straight back.
The statement is fair IMO, people have left bad feedback, and the thought of filing down an engine component is unreal.
The springs and Cams should be able to go together with no problems if you have manufactured them to an origional design and made them stronger, they should fit, and what pressure should they be at???
People may find my statement un true etc, but i will not be spending my money on something iv got to finish off myself to fit.
Sorry
Dan-The-Glanza-Man
Member +
im getting scared now i have both speedvision cams and springs lol