James-26 Posted April 9, 2010 Report Posted April 9, 2010 I'm installing new intake manifolds on my banshee not because it needs them but I rather be safe then sorry later down the road. Anyway I figured I check out the port job and to my surprise it looks damn good to me but honestly i dont know what a good port job looks like. What do you guys think? Is it possable to verify to type of porting done here? trail,dune,race or drag? When I install the new intake manifolds do I need to use any kind of sealing agent or gasket? I see there is a gasket between the intake port and reed cage but nothing between the intake manifold and reed cage Also is this a stock reed cage or aftermarket? I was told it has boysen reeds?? Quote
papa_smurf49319 Posted April 9, 2010 Report Posted April 9, 2010 stock reed cages and gaskets on both sides! If your going with a one piece intake, a little red rtv never hurt anything also. From the pics it looks good, hard to tell in pics and cant tell what it is by picture need to measure. Quote
AKheathen Posted April 9, 2010 Report Posted April 9, 2010 stock cages with boysen power reeds. stock intakes have a sealing ring on them, so they don't use gaskets on that side from the factory, but many people throw some in there anyways for insurance, and it doesn't hurt, lol. as for the porting, well, it doesn't look like a hack-job with a 1/4" die gringer, but other than that, you need the transfers and exhaust measurements in degrees and shape to tell what kind of porting it is. only thing i notice is that the intake is really polished, which i would personally never do to anything but the exhaust, but that's a preference thing between porters, so i'll just leave that as my personal opinion....which i would be inclined to throw a needle scaler on, lol Quote
James-26 Posted April 9, 2010 Author Report Posted April 9, 2010 gaskets on both sides Thats very interesting cause only gasket that was on it was between the intake port and reed cage. You can see the gasket in my pictures. There was nothing between the reed cage and intake manifold. Quote
James-26 Posted April 9, 2010 Author Report Posted April 9, 2010 stock intakes have a sealing ring on them, so they don't use gaskets on that side from the factory, but many people throw some in there anyways for insurance, and it doesn't hurt Do I just buy four of the gaskets that go between the intake port and reed cage then? Also do I need to replace the used gasket that is already installed? I didnt rip or tare when I took the cage off. Quote
esterelbanshee Posted April 9, 2010 Report Posted April 9, 2010 Based on how smooth that port job is, I'd say it was extrudehoned as well. This is a good thing. Don't let anyone tell you otherwise. Smooth ports are an advantage and show a dedication to good work which should say a lot about who did the porting. Otherwise can't really tell what type of port job it is. Looks good to me. Quote
AKheathen Posted April 9, 2010 Report Posted April 9, 2010 yes, you just run 4 of the same gasket, and about replacing the other one- that's up to you. good practice to just replace them, but i don't always do it if it's stuck to the cyl good, it won't leak ther, imo, and if it's still maliable and not hardened, then it can seal to the reed cage good. if you don't know wheather to trust it, replace it. you really don't want it to leak there. Quote
James-26 Posted April 9, 2010 Author Report Posted April 9, 2010 yes, you just run 4 of the same gasket, and about replacing the other one- that's up to you. good practice to just replace them, but i don't always do it if it's stuck to the cyl good, it won't leak ther, imo, and if it's still maliable and not hardened, then it can seal to the reed cage good. if you don't know wheather to trust it, replace it. you really don't want it to leak there. I just made a replacment gasket out of 1/32 inch gasket paper. Rather be safe the sorry. As far as running four gaskets don't think I'll do that at this time. It was fine the way it was before so no reason fixing something that isnt broke. Does it matter how the reed cage goes back in? I couldnt remember witch side was top when reinstalling. Also is there an in-lbs torque spec on the intake manifold bolts? My shop manual isnt here yet. Quote
James-26 Posted April 9, 2010 Author Report Posted April 9, 2010 Thanks SD1026! Also I found the torque specs for the intake manifold bolts. For anyone else looking torque specs are 7.2 ft-lbs or 86.4 in-lbs Quote
AKheathen Posted April 9, 2010 Report Posted April 9, 2010 wow, that's a shit oload, of torque on those little bolts, lol.......i do it about 30-40 in/lb with a allen wrench......so, it looks like there was some kind of sealnt on the reed cage, actually. make sure it's all of the rubber, so it seals flat, or that out put something back on it to seal... Quote
RagunCajun Posted April 9, 2010 Report Posted April 9, 2010 in general, you can not tell how a port job will perform by looking at it...... Quote
AKheathen Posted April 9, 2010 Report Posted April 9, 2010 in general, you can not tell how a port job will perform by looking at it...... lol, that's why i said you need the degrees and port shape/size to tell, Quote
James-26 Posted April 9, 2010 Author Report Posted April 9, 2010 Well the gasket that I pulled off was 1/64th of an inch and the new one I made was is 1/32nd of an inch so I just torqued to factory 86.4 in-lbs. I will have it finished up later today. Quote
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