92EagleAWD said:

Time to update the mods
Im loving all this info, its like a tuner braingasm

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Well I am glad that people are able to benefit from the thread. I will be hitting the dyno as soon as I install this new Jay Racing Pro Series 342 Fuel Pump . This pump suppose to support over 600 whp. My target with new set up is 550whp. This pump will take care of my fuel needs. I also , after much reading , went with a south bend kevlar disc with a ACT 2600lbs pressure plate as my clutch set up It holds very well The old 6 puck disc ate the heck out of my flywheel and pressure plate never will I ever use another 6 puck disk!

Wow you've had a hell of a year, and for TOGA and CP, thousands of DSM members have seen what parts were a part of it.

I remember your 6265 thread, it's good to see a light at the end of the tunnel for you, that DSM is really flying through the rpms now. Enjoy the bliss, you've been patient enough.

Finally after many months I was able to get a chance to dyno the car with new turbo and BC 280 cams. I ran into a rew issues that stopped the dyno. Oil leak at the filter housing and two major boost leaks. I can't really give an impression on the cams as of yet until I get back to the dyno and do it again without the boost leaks. I have the cams set a 8 degrees retard on the intake and 8 degrees advance on the exhaust. This seems like a lot but the cams can handle this type of adjustment considering these cam although having 280 degrees of duration have smaller lift than most cams of its size. I still at this point in the testing prefer the bc272s for a daily driver and will be switching back. In the mean time I will get back to the dyno in a week or so. dyno sheet can be found here http://www.dsmtuners.com/forums/tur...o-first-impression-video-2.html#post152566620 28 psi of boost with boost leak dropping to 21psi the car made 520hp 452tq.

keltalon said:

I have the cams set a 8 degrees retard on the intake and 8 degrees advance on the exhaust. This seems like a lot but the cams can handle this type of adjustment considering these cam although having 280 degrees of duration have smaller lift than most cams of its size.

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I wanted to add for others that advancing exhaust and retarding intake increases valve to piston clearance compared to doing it vise versa.

Effect Of Changes In Cam Timing And Lobe Separation Angle

Also Keltalon, glad to hear your back at your cam tests. Can't wait to see the final dyno numbers for the 280s, and even maybe some results from switching back to the bc272's.

Killa_dsm said:

I wanted to add for others that advancing exhaust and retarding intake increases valve to piston clearance compared to doing it vise versa.

Effect Of Changes In Cam Timing And Lobe Separation Angle

Also Keltalon, glad to hear your back at your cam tests. Can't wait to see the final dyno numbers for the 280s, and even maybe some results from switching back to the bc272's.

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Thanks. This is the purpose of the test at this point in to get a comparion of the bc280s vs bc272s with the same set up. I will put the results on the same graph to show power differences.

so ehhh... what's up doc?

Man, that chart proves what i've been saying forever... advance the exhaust and retard the intake and you get a later, but HUGELY increased powerband, I've been running my exhaust cam +4 advnace from centerline and the intake _4 retarded and the car pulls easily and never stops right to 9k RPM .. 3 years ago everyone on here said it was better to increase overlap and no matter how i argued that YES on NA but NO on turbocharged no one listened.. now it' sbein proven 2 -3 year laster

I must just be ahead of the times.. lovin all the other good info too!!!!!.. I think people who decrease LSA think they gain more because it hits low, but i hate how it falls off early.. with teh increased LSA i run it hits later and is a tad boggier in traffic but the thing RIPS in the top and never stops puillin

Well I am still around. I will update the thread a little later today. I am about to fire this thing back up again. Finally have all issues fixed and is waiting for a few upgrades to come in and I should be back at the dyno next week. I am going to retest at least 3 of the cams with my new set up so as to complete my promise to delta and brian crower then I going to give attention on my quest for 600whp.

turboglenn said:

Man, that chart proves what i've been saying forever... advance the exhaust and retard the intake and you get a later, but HUGELY increased powerband, I've been running my exhaust cam +4 advnace from centerline and the intake _4 retarded and the car pulls easily and never stops right to 9k RPM .. 3 years ago everyone on here said it was better to increase overlap and no matter how i argued that YES on NA but NO on turbocharged no one listened.. now it' sbein proven 2 -3 year laster

I must just be ahead of the times.. lovin all the other good info too!!!!!.. I think people who decrease LSA think they gain more because it hits low, but i hate how it falls off early.. with teh increased LSA i run it hits later and is a tad boggier in traffic but the thing RIPS in the top and never stops puillin

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Not to mention doing it this way makes the 280s idle just like stock with 18hg of vacuum my car rips to 8000rpm easy! Nice video of BC280s with new turbo 28 psi 4th gear pull with 3 massive boost leaks which are now fixed <iframe width="425" height="349" src="http://www.youtube.com/embed/G13TrPRwPGI" frameborder="0" allowfullscreen></iframe>

yea, the idle is a nice bonus isn't it.. people don't even believe my car has cams adn stand alone EMS in it the idle is so nice and steady. Last time i discussed it here everyone swore by tuning for more overlap and i tried to argue that with the pressures scavenging couldn't really be factored in but i don't think anyone was paying much attention or something.. i've been swearing by running mine like this since (oh damn if i'm remembering right 2008 now - man i'm getting older fgaster )

but on mine with 264/272 combo, i hold right between 19/20 in/hs at 800rpm but with the t2/t4 57 it still pulls to 9 instantly if i don't shift whent the front tires light up, it will bury the stock tach, and when timing them according to NA theory, it would barely pull past 7200

turboglenn said:

yea, the idle is a nice bonus isn't it.. people don't even believe my car has cams adn stand alone EMS in it the idle is so nice and steady. Last time i discussed it here everyone swore by tuning for more overlap and i tried to argue that with the pressures scavenging couldn't really be factored in but i don't think anyone was paying much attention or something.. i've been swearing by running mine like this since (oh damn if i'm remembering right 2008 now - man i'm getting older fgaster )

but on mine with 264/272 combo, i hold right between 19/20 in/hs at 800rpm but with the t2/t4 57 it still pulls to 9 instantly if i don't shift whent the front tires light up, it will bury the stock tach, and when timing them according to NA theory, it would barely pull past 7200

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Contrary to popular opinions turbos just don't like overlap plain and simple

keltalon said:

Contrary to popular opinions turbos just don't like overlap plain and simple

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I can't tell ya how long i've been trying to say just that.. I even had logs showing increased fuel consumption and people were still arguing they you "could plainlt feel more power with more overlap" so i just figured, "let them be the slower of us two" .. now days, i let people believe wha they want to .. if it's my customer and they want it a certain way, I'll say ok, but my way is faster.. but you can pay me twice if you want

I was completely against BC cams before reading this, but I am really wanting to see a comparison between BC 272s, FP2s and Delta HKS 272 regrinds.

wheel spin much...

When this is completed, you seriously need to make a new thread with all your data compiled in a better manor, It's very easy to get lost in the last 10 pages.

turboglenn said:

Last time i discussed it here everyone swore by tuning for more overlap and i tried to argue that with the pressures scavenging couldn't really be factored in but i don't think anyone was paying much attention or something.. i've been swearing by running mine like this since (oh damn if i'm remembering right 2008 now - man i'm getting older fgaster )

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Slightly off topic, but do you have a link to that thread?

Hey Kelton!! Whats the update?

BogusSVO said:

Hey Kelton!! Whats the update?

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Well I been working like a hebrew slave lately. I started messing around with the car yesterday getting ready to head back to dyno Dad gum cam gears! One of my hex bolts stripped out. Probably as a result of many movements

Okay I am just about ready to test these bc 280s after all these months. Here is a short pull to 145 30psi. This will be the last dyno with the stock 2g mas and dsmlink v2 so enjoy

did you do a video of the BC 272 at idle? i can't find a video with the cam timing changes you made. I want to know how smooth they can idle.

saturnshadow said:

did you do a video of the BC 272 at idle? i can't find a video with the cam timing changes you made. I want to know how smooth they can idle.

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Yeah I did do a video but I can't find it either. I will say this with the cam setting 5 degree retard on intake and 5 degree advance on the exhaust the cams idle just like stock. I am also running these settings on the 280s in the car and they also idle like stock cams.

H4G64T said:

I was completely against BC cams before reading this, but I am really wanting to see a comparison between BC 272s, FP2s and Delta HKS 272 regrinds.

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+1 to that idea

Wow awesome work man your really helping a lot of people and Benefitting the forum,instead of proven member you should be "cam wiseman".
Josh

dsmtwins2g said:

Wow awesome work man your really helping a lot of people and Benefitting the forum,instead of proven member you should be "cam wiseman".
Josh

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Thanks. At the end of the day I ended up with running the bc 272s on my current set up due to their street manners. I installed them straight up and this is how I am running them. So far I am happy Due to totaling the spyder I have yet to dyno them with my new 6465 comp trple ballbearing turbo. On the streets she rocks check out my pull.

<iframe width="420" height="315" src="http://www.youtube.com/embed/hjLqxBoCkp0" frameborder="0" allowfullscreen></iframe>

Great job man sick video to,personal I love bc I have bc280 in my brothers dsm there a little overkill but hey why not.
Do you have any info in bc280?
Keep up the awesome work.
Josh

dsmtwins2g said:

Wow awesome work man your really helping a lot of people and Benefitting the forum,instead of proven member you should be "cam wiseman".
Josh

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I have often wondered just how to get the next green dot under my name I have tried everything I gave up about a year ago

Okay fellas I will have my new setup completed by the end of september and will be making some minor upgrades. I am also thinking of doing a Round 2 testing on various cams. Cams I am interested in testing are BC288 , GSC2 and GSC3. I am in talks as to getting my hands on these. Stay tuned