engine wearing

[jetdc2R]

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hey guys,

i got dc2r b18c7
parts:
-BC spec 3 cams
-BC dual valve springs titanium
-BC cam gears
-BC retainers titanium

tune
-Apexi power fc

question: my km's are 110,000 rufly on my dash..will these performance parts reduce my engines life??
my car is used for highway driving :S to wollongong and back pretty much

ive got the parts but im scared to blow my motor

can anyone give me advise please

[Zilli]

this could be a contentious one, but im going to stick on one side of the fence and say that anything different to OEM will reduce the life of your motor given a consistent driving style

[Neesmo31]

As far as an engineering perspective is concerned, the stiffer springs will increase pressure on the rotating assembly. More pressure = more wear. Put it simply, if you didnt have any springs in there at all (theoretically) the cams could spin freely and there wouldnt be any stress placed on the bearings, put massive springs into the equation and the cam will go from hardly any loads placed onto the bearings to alot of force placed on the bearings when the springs are depressed.

As far as wether or not this will be detrimental to the head, better off asking someone like adrian from toda or someone who has been in the game for a long time and has done it many times.

[B18cEG]

What would you say the current condition of ur motor is? Blowing any smoke? You should do a comp test to get a rough idea of the sleeves condition, regardless of the motor the stiffer springs will put extra load on the motor, an important step is to atleast get a racing timing belt, also pretty sure you should be running a little higher comp with the bc3 cams so would be a good time to pull motor out, rebuild and get nrp or ycp overbore higher comp pistons while your at it. Rebuilds really don cost that much at all if you can remove and strip the motor. Goodluck

[Neesmo31]

Agreed. A slight hone, new rings/rebuild/belt is a bit cheaper than scored bores or snapped timing belt which equals smashed head.

[jetdc2R]

dam that sucks.. im gonna get rid of these parts man i just got them yesterday aswell.... :S

spewing big time..thanks guys

[JasonGilholme]

As long as its driven correct, good parts are used and install/tune are GREAT then it will be ok. Its not like you're running your car on methanol or something.

[Neesmo31]

Dont get rid of them just yet mate. Its not like they will kill your motor in a few revolutions, its just that its more aggresive than factory. Thats like anything though when it comes to modifications - they effect longevity. Look at a top fueler.

Just make an informed decision on wether or not this will be your best option, as sometimes modifying can create more work and cost then you first intended. Also for very high spec cams you will need to raise compression. Best talk to adrian - hell steer you in the right direction.

[jetdc2R]

im always down wollongong way on the highway every weekend to sleep over my girlfriends house....my car sits on 4,000rpm all the way on the highway for a long time....should i just buy a cheap run around??or is it alright to sit on the highway with the motor revving high??

[DC2R88D]

get some forged internals :P

[NSPYRE]

honestly, i wouldnt be too worried with those parts. buddy club spec III cams are a straight drop in cam - u dont really need to upgrade valve springs and they can be run on a standard tune, though of course you will get more from a proper tune. they arent really aggressive wen u look at the specs as they are quite similar to the OEM dc2r cams.

one thing however is that u mentioned this was ur daily driver? titanium retainers for a daily driver is probably not the best idea. they tend to wear down quite quickly and are often replaced every 25,000km - 30,000km or so (of course, dependent on ur driving style). i'd stick with the OEM retainers or get some after market steel ones. since the cams are designed to be optimal within the standard rev range, you dont need to worry about valve float/valve bounce

[xntrik]

If you're scared, don't do it. :)

[IEVAQ8]

r u guys fukn serious???????????

i mean, b18c7's arnt unbreakable, but ur only adding cams with the supporting hardware and ecu to tune them.................

many people have done this before, and unlesse the tune is up shit creek and u dont look after it, there is no reason why it wont last over 200,000km's....

im only talking from experience with a boosted application on STOCK STANDARD b18c7..............and im sure boost would have caused alot more pressure and stress on the internals on a naturaly built NA engine compared to a set of cams......

just my thoughts................. I say GO FOR IT, and let us know of the outcome.......