| Re: 410 CFM Miniram... |
Subject: Re: 410 CFM Miniram... by TonyMamo on 2009/5/28 4:06:13 Here you go guys.....if you want to copy my work feel free!! This intake kicked my azzz and turned out to be far more work than I originally envisioned but Jim is about as nice a guy to work with as it gets and although the cost escalated some during the job, he was committed to letting me have at it.....and wouldnt let me cut a corner even if I wanted to.....LOL Truth be told I was curious what I could get from this and felt with liberal use of the grinder and even more liberal use of epoxy I could perhaps give him something special. While I usually only let mid 300's leave my lips, I secretly hoped for closer to 400 (my most optimistic goal) once Jim gave me the green light on the extensive plenum reworking and runner extensions (all through many applications of epoxy obviously). That I knew would make a big difference in the outcome of this project. The pics arent that great because the flash washes everything out and no flash is a little grainy but you certainly get the idea. I ended up providing him with tapered runners longer than stock, nice radiused corners always condusive to flow, and a nice bellmouthed radius on all the port openings best I could without removing (cutting) the actual top of the manifold off. I could just fit my arm/hand to the rear of the intake to work that section but honestly that was a big PITA and my forearms are still bruised from it....LOL There are a few other tricks I will opt not to disclose but this is the basic premise of the work I performed. As Jim mentioned, the worst flowing port came in at 399 CFM and the best at 410, with the other six holes somewhere in the middle. I also flowed the manifold correctly, that is to have blocked every other port when I flowed each one, and of course plugging off the injector hole so no additional airflow snuck thru there. This essentially forced all the air to be pulled from the TB opening only (negotiating somewhat of a 90' bend into each port) just as it would on an actual running engine. This reduced flow per cylinder by about 15 CFM btw and provided us with more real world results. A shot of the first operation.....the major metal removal in the roof and sides of the port....the opposite side (the floor) needed epoxy added to achieve the correct height and radiused corners. Left port has roof reworked obviously.....right side as delivered from Jim with a little clean up work already performed [IMG]http://i307.photobucket.com/albums/nn283/Flowizard/Thebeforeshot-rightside.jpg[/IMG] And here is the left side....both of the "before" shots I had already roughed in the sides (getting them close to net). I should have taken some virgin pics but didnt think to start snapping away till I was covered pretty well in aluminum chips....LOL I guess most of you guys already know how small the ports are out of the box. This was either a 1204 or a 1205 Miniram btw (now its a 1206 Mamo-Ram  [IMG]http://i307.photobucket.com/albums/nn283/Flowizard/Theaftershot-leftside.jpg[/IMG] Here is a shot of a finished pair of roof and sides.....the other side needing to be shrunk with epoxy before all the smoke clears [IMG]http://i307.photobucket.com/albums/nn283/Flowizard/Finishedroofcombo.jpg[/IMG] Some pics of the finished port outlets complete with the epoxy and all the trimmings.... [IMG]http://i307.photobucket.com/albums/nn283/Flowizard/Intake.jpg[/IMG] [IMG]http://i307.photobucket.com/albums/nn283/Flowizard/Intake2.jpg[/IMG] And a shot of the plenum....some skunkworks in this area so only one shot of this work.....generous use of properly shaped epoxy the name of the game here. [IMG]http://i307.photobucket.com/albums/nn283/Flowizard/Plenum-1.jpg[/IMG] Thats about it guys.... Price to do another? Well.....if you have to ask Even if one of you offered me the [I]right[/I] money to do this job, I wouldnt/couldn't take it on right now. I'm actually buried in a couple of engine builds anyway but even if I was twiddling my thumbs, I just couldnt bring myself to start another....not till this one is a distant memory at least.....then I might be stupid enough to say yes again! Also, I would like to see how Jim's new combo works out. If it goes as well as I think I may have to raise prices....LOL Thanks guys, Tony |
