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In post # 83, you have the BC272 cams at "5 degree advance on exhaust and 5 degree retard on the intake"..I'm putting the cams in soon, are the newer settings better ? Thanx in advance..
Newer settings for the bc276.
Not a mistake. I looked at his setup and was able to give a recommendation based on the mods in his profile. 5 and 5 is a general starting point that yield good results across the board these setting I have found put the LSA where a street car needs them and the rest of setting them up from here is to determine what you want your turbo to do. Whith that being said cams can be fine tuned per setup. My recommendation was base on what I saw in his profile. Turbo size determine exactly how to set up a set of cams and so does the cam size themselves. Do you want midrange power, do you want to spool a big turbo early, do you want to gain upper rpm power from a small set of cams all these factors goes into play when determining how you want your cams set up because you can manipulate all of this via your cams
. Some people spend a lot of time trying to degree cams I don't why? unless you have solid lifter the process will yield inaccurate results but most, being informed will do it any way. I have gotten this cam tuning thing so down packed its like 2nd nature to look at your set up and what you want to do and tell you where I think you should start with your settings and 9 times out of 10 most are happy with the recommendation. the key is finding a setting that will allow your the Intake, cam, and turbo to work together with perfect balance!
I sent you a pm need additional information.
Yeah BC cams are very underated
I couldn't agree with you more! There are only a few guys on these boards that aim for a high powered street machine, most others want a powerful street machine but pattern their set up after that 7 sec 2g that is about to break the 7 sec 1g record and god knows that those cars are far from being driven on the streets
. That is why when a person does something out of the box (not like the red 2g and purple 1g) , because he is building a street killer, it seems as if he is crazy until he post results of the out of the box well though out and calculated set-up. Its all a balancing act to be honest
when I switch from the bc272 and the smaller 6264 comp turbo to the bc276 and 6266pte I changed the intake manifold to the JMF street to balance the setup and at the same time keeping the street objective in mind I must say I couldn't be more happier the car is still very street friendly and this is also due to manipulating the cams for smooth idle and lots of midrange power. Cams, intake and turbo needs to be matched to give you positive street results.
My recommendation would be a .63 A/R housing this will spool the turbo in the efficiency range of that manifold. on the 10.5:1 motor This will be a killer. As far as degreeing the cams IMO this is only beneficial if you are trying to make sure your humongous cams don't make contact with your dome pistons other than that install the cams at zero and dial them in for your setup. .63, stock intake, minimum overlap equals street machine!
Charles to be honest I really can't remember I do know I tested the bc272 against the hksh264 and they spooled the same down low and made something like 14whp in the upper rpm. The hks272s has proven themselves on these engine and both hks 272s or the bc272s will be perfectly fine for your to street setup. I ran the bc272s for over 3 years and loved them to death they are lower in cost than the hks and I know you will like them hope this help.
Welcome. I think bc went back to the days of old on these bc276, what I mean is a cam that has high lift and short duration which works extremely well for a daily driver, check out the idle quality in this video
