My n/a super b3 build

[blkfordsedan]

If I recall, your stage I cam is compatable with stock valvetrain and your stage II cam should be OK with either HLA shims or mechanical rockers. (And springs) Most likely, that would be the one I would go for....And I would switch to mechanical. If my motor wasn't already together and running, it would be different.

[mattdickmeyer]

Im just teasing you...Take your time and triple check everything. Sounds like you're doing good. I really want to swap out the FMS cam in my B6 for Matt's roller grind like yours. Unfortunately, it requires aftermarket valves with longer stems and the valve guides to be cut down due to the smaller base circle and higher lift. I really don't want to pull my head and spend the added money just to accommodate it.

The reason I haven't worried about the reduction of base circle on my cams is because with mechanical valve train, the lash can be adjusted out with rocker adjustment & on hydraulic it can be accommodated with shims between the lash adjuster & rocker body. With the roller cam, because of the aggressive nature of the lobe profile, a large amount of material had to be removed from the base circle to be able to achieve the desired profile for drumnerd33. Since his car is going to be a driver, I wanted a profile that would produce huge amounts of power in the 2500-4500 RPM range & not so concerned with all top end. It's important to have a cam that allows your cylinder head to operate at its highest flow potential ( his cam has .514 lift which is huge for the B3 ). All but 1 cam that I have sold has been ran with my complete race ported head, which comes with custom valves anyway, so it's not a big deal to ad tip length to accommodate valve lash. But if there is any of you who want a direct replacement race cam with the OE base circle ( 1.221 ) I can weld the lobes so that when it is ground it will be reduced down to stock size. This will also allow for unlimited cam profile in terms of lift/duration as I won't have to work within what will fit on a stock lobe. This will make shims & longer valves unnecessary. Welding the lobes will add cost to the cam but still be much cheaper than buying my custom valves, not to mention a head set & machine work.

[drumnerd33]

Re: My n/a super b3 build

True... Well I'm gonna see what this engine will do n/a then go from there.

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[bhazard]

Re: My n/a super b3 build

[Movin]

I like! ^^^^

[sasquatch]

Plus living in colorado with the snow it sucks having the turbo kick in cuz then you have no traction.

get a big turbo then... you gotta work it a bit to get it to light up

[drumnerd33]

I know that ultimately turbo is better. just harder to not be in it all the time. Plus living in colorado with the snow it sucks having the turbo kick in cuz then you have no traction.

[drumnerd33]

Yeah thats where im back and forth... its just if you have a turbo its hard not to use it, so you end up eating mpg. With nitrous its not too expensive to fill and with only a 50 shot it should last a while and only would use it when really need it (like when a built sti wants to race and you know you cant beat him without the nitrous)

[Damkid]

My n/a super b3 build

I'd prefer a turbo, once it's installed and running, it could only cost you extra gas IF you floor it where as once a nitrous bottle is empty, you gotta pay to refill it

[drumnerd33]

Yeah still back and forth on boost... kinda thinking maybe nitrous in the future because you only use it when you need or want it. Asked matt about it and he said would just have to keep it to only a 50hp shot

[Damkid]

My n/a super b3 build

Things are looking good!! Hopefully it puts out decent number, then all you need is some boost

[drumnerd33]

yeah when i started this build i was just gonna go mild, but then since i had it all apart i just told matt to do it all, no reason not to just have everything done at the same time, plus im laid off right now and have the time to do it. My schedule is totally different when im working, I always work a ton of overtime so dont have time to do anything then when i get laid off between projects i become a mechanic... actually works out pretty good.

[blkfordsedan]

Im just teasing you...Take your time and triple check everything. Sounds like you're doing good. I really want to swap out the FMS cam in my B6 for Matt's roller grind like yours. Unfortunately, it requires aftermarket valves with longer stems and the valve guides to be cut down due to the smaller base circle and higher lift. I really don't want to pull my head and spend the added money just to accommodate it.

[drumnerd33]

So i put this on my car last night and sent these pics to my buddy and told him look i just added like 30hp to my car and havent even put the engine in yet... lol he text back i bet the tires chirped when you stuck it on.

[drumnerd33]

thats right he did tell me that and i assume mine is the one he used to get the profile on, because he took a junk one and cut it in half to be sure it had enough material to work. The rest of the build should go pretty quick now, i have just never done the blueprinting so took my time. Sorry, but i will continue all the details so should be fun to watch this thread:happy1: