jettadude
03-23-2006, 08:54 PM
Ok people over the past 3 days ive been working at my new intake manifold that i got for my vr. I was looking online and i found a modded intake manifold for 900bucks. to turn your obd2 into a 2.9 euro obd1 intake with no bottle neck. from what ive read a 22% increse in air volume in the intake manifold. so i saw this and said hell i can do that. ive been wanting to anyhows so i venture online to find a how to. i searched vortex and googled it and nothing. just people talking about it but no how to. so i took it upon myself to make one. I also wanted to polish it so there a how to do it quickly in here as well. so here it is.
1. Get an intake manifold. Just so happens the one i bought was allready powercoated and had polished runners however they were done very badly so i had to go back over them. http://i6.photobucket.com/albums/y242/jettadude/000_1064.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1063.jpg
2. take a framing square and line upwhere the 2 ends of the intkae walls are and draw a line to follow to cut. as shown here.
http://i6.photobucket.com/albums/y242/jettadude/000_1071.jpg
3. Start cutting. now i used my die grinder with a cutoff wheel to do it. smaller for more presice cuts and i can adujst the speed. Now when cutting aluminum you don't want to have it spinning fast. it is a soft metal with a low melting temp. it will not cut as fast and kill your cutoff wheel faster. after you have your 2 lines cut like so... http://i6.photobucket.com/albums/y242/jettadude/000_1072.jpg
you want to cut along the top of the bottle neck to meet the 2 lines you allready cut. so you can remove the peice like so.. http://i6.photobucket.com/albums/y242/jettadude/000_1073.jpg
and remove the pieice ...http://i6.photobucket.com/albums/y242/jettadude/000_1074.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1075.jpg
4. now with that big peice out of the way i used my angle grinder with a big thick grinding wheel. since i didn't want to try to cut out those walls for lack of a better term and trust me i tried it is easier to grind them out. Now this will kick up alot of metal dusk wear a dust mask!!! its not just dust its friggin metal! now grind them down as close to the bottom as you can. be careful not to go to deep then you have to JB weld/fill in weld. and it will screw up you polishing that part. once you have it all grinded out like so...http://i6.photobucket.com/albums/y242/jettadude/000_1078.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1079.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1080.jpg
you can go back in with sand paper and try to smooth it out. honestly im not i got close and some turbulance is good for the fuel mixture.
5. now i don't have any pics for this part becuase i have no cut the aluminum yet as the pait is still drying and well you really don't need pics for this but i will add them when i do it. to finish it you cut a peice of alumium the thickness i have not gotten yet ide say 16th might be 2 thin i migh go with 8th inch. you cut it to the shape of the intake manifold so it will sit on top of the edges and weld it in. that will no stop it from sitting higher don't worry. then. clean it out to make sure you got all the dust and debree out and bolt on HP!.
__________________________________________________ ___________
Now for the polishing.
I didn't have much time to spend on this cuz im in a rush to install it. so i took 150 grit paper. took me about 5 sheets to get the whole thing. and i used a palm sander to get the brunt of it. now sand like the wind. since it is a cast peice there is a texture from the sand, that has to be sanded down smooth before you can polsih it to make it look good. use the 150 grit to take it down so you don't see any more ripples. then take some by hand and pick a direction. just one. wether it be top to bottom or side to side and sand in that one directiong. make all the scraches uniform. when thats done you can see better if there are any more inperfectoins. if not this is what it should look like.....http://i6.photobucket.com/albums/y242/jettadude/000_1082.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1083.jpg
allready not that bad huh.
now i took 220 grit and in the same direction. if you try to switch directions to get them out it wont work. 220 will take forever and it will wont look right. if you go in the same direction it will blend everything in make it look good. it will also take out the deep scratches. Then i took some 400 grit and again same direction untill all the deep scraches are out . with each higher grit you want to take the scraches out from the previous grit. then i took 600 and finished it. if you want you can go higher. 800-1000 to get a higher luster as i said i am under a time contraint so 600 was good enough for me. Then i used a polish call flitz. i live by this stuff i sugest you use it. a little bit goes a LONG way. http://i6.photobucket.com/albums/y242/jettadude/000_1091.jpg
after that this is what i got. http://i6.photobucket.com/albums/y242/jettadude/000_1085.jpg
just to show i held a can of liquid wrench up to it just to show its a mirror finish in under an hour. http://i6.photobucket.com/albums/y242/jettadude/000_1086.jpg
. Thats for that part. now on to the runners. pretty much repeat the steps. but dont go too far off the runners. a polished surface make the paint harder to stick to. these are the runners when i was done with them . look at the difference to when i got the manifold. http://i6.photobucket.com/albums/y242/jettadude/000_1087.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1088.jpg
and when i got it. http://i6.photobucket.com/albums/y242/jettadude/000_1064.jpg
.
Now when you want to paint it. you need to mask off all your hard work. i used electrical tape. its thin so you can mask like your pin striping. its tough so if somthing hits it or bumps into it the tape will protect it. and i paid a dollar for 2 rolls that i used half of one to tape everything i needed to. http://i6.photobucket.com/albums/y242/jettadude/000_1089.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1090.jpg
now that its taped off. clean the surface really good. i used carb cleaner to get everything. let dry then find a nice place to paint. somewhere with good ventalation and where no dust will fall on it. i used engine enamal with 500 degree protection. its a hard paint and it wont get messed up by the heat. http://i6.photobucket.com/albums/y242/jettadude/000_1092.jpg.
Then start spraying. they say to do all your coats in 10 minuet intervults and do it all within one hour. i did 4 coats. nice and thick and nice and bright. http://i6.photobucket.com/albums/y242/jettadude/000_1093.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1094.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1095.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1096.jpg
as i said im not quite done i need to paint the under side and weld in the new back but i had to post this i was excited. so there you have it. a how to mod your vr6 intake manifold. hopefuly that will help with anything you might need to polish as well. well tell me what ya think. total time 6 hours over 3 days. 30 bucks in parts. 50 for intake manifold. 80bucks for a grand worth of parts from someone else.
copyright me and dubnetworks.net do not repost anywhere else but dubnet without my permission. email at jettadude@dubnetworks.net
1. Get an intake manifold. Just so happens the one i bought was allready powercoated and had polished runners however they were done very badly so i had to go back over them. http://i6.photobucket.com/albums/y242/jettadude/000_1064.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1063.jpg
2. take a framing square and line upwhere the 2 ends of the intkae walls are and draw a line to follow to cut. as shown here.
http://i6.photobucket.com/albums/y242/jettadude/000_1071.jpg
3. Start cutting. now i used my die grinder with a cutoff wheel to do it. smaller for more presice cuts and i can adujst the speed. Now when cutting aluminum you don't want to have it spinning fast. it is a soft metal with a low melting temp. it will not cut as fast and kill your cutoff wheel faster. after you have your 2 lines cut like so... http://i6.photobucket.com/albums/y242/jettadude/000_1072.jpg
you want to cut along the top of the bottle neck to meet the 2 lines you allready cut. so you can remove the peice like so.. http://i6.photobucket.com/albums/y242/jettadude/000_1073.jpg
and remove the pieice ...http://i6.photobucket.com/albums/y242/jettadude/000_1074.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1075.jpg
4. now with that big peice out of the way i used my angle grinder with a big thick grinding wheel. since i didn't want to try to cut out those walls for lack of a better term and trust me i tried it is easier to grind them out. Now this will kick up alot of metal dusk wear a dust mask!!! its not just dust its friggin metal! now grind them down as close to the bottom as you can. be careful not to go to deep then you have to JB weld/fill in weld. and it will screw up you polishing that part. once you have it all grinded out like so...http://i6.photobucket.com/albums/y242/jettadude/000_1078.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1079.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1080.jpg
you can go back in with sand paper and try to smooth it out. honestly im not i got close and some turbulance is good for the fuel mixture.
5. now i don't have any pics for this part becuase i have no cut the aluminum yet as the pait is still drying and well you really don't need pics for this but i will add them when i do it. to finish it you cut a peice of alumium the thickness i have not gotten yet ide say 16th might be 2 thin i migh go with 8th inch. you cut it to the shape of the intake manifold so it will sit on top of the edges and weld it in. that will no stop it from sitting higher don't worry. then. clean it out to make sure you got all the dust and debree out and bolt on HP!.
__________________________________________________ ___________
Now for the polishing.
I didn't have much time to spend on this cuz im in a rush to install it. so i took 150 grit paper. took me about 5 sheets to get the whole thing. and i used a palm sander to get the brunt of it. now sand like the wind. since it is a cast peice there is a texture from the sand, that has to be sanded down smooth before you can polsih it to make it look good. use the 150 grit to take it down so you don't see any more ripples. then take some by hand and pick a direction. just one. wether it be top to bottom or side to side and sand in that one directiong. make all the scraches uniform. when thats done you can see better if there are any more inperfectoins. if not this is what it should look like.....http://i6.photobucket.com/albums/y242/jettadude/000_1082.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1083.jpg
allready not that bad huh.
now i took 220 grit and in the same direction. if you try to switch directions to get them out it wont work. 220 will take forever and it will wont look right. if you go in the same direction it will blend everything in make it look good. it will also take out the deep scratches. Then i took some 400 grit and again same direction untill all the deep scraches are out . with each higher grit you want to take the scraches out from the previous grit. then i took 600 and finished it. if you want you can go higher. 800-1000 to get a higher luster as i said i am under a time contraint so 600 was good enough for me. Then i used a polish call flitz. i live by this stuff i sugest you use it. a little bit goes a LONG way. http://i6.photobucket.com/albums/y242/jettadude/000_1091.jpg
after that this is what i got. http://i6.photobucket.com/albums/y242/jettadude/000_1085.jpg
just to show i held a can of liquid wrench up to it just to show its a mirror finish in under an hour. http://i6.photobucket.com/albums/y242/jettadude/000_1086.jpg
. Thats for that part. now on to the runners. pretty much repeat the steps. but dont go too far off the runners. a polished surface make the paint harder to stick to. these are the runners when i was done with them . look at the difference to when i got the manifold. http://i6.photobucket.com/albums/y242/jettadude/000_1087.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1088.jpg
and when i got it. http://i6.photobucket.com/albums/y242/jettadude/000_1064.jpg
.
Now when you want to paint it. you need to mask off all your hard work. i used electrical tape. its thin so you can mask like your pin striping. its tough so if somthing hits it or bumps into it the tape will protect it. and i paid a dollar for 2 rolls that i used half of one to tape everything i needed to. http://i6.photobucket.com/albums/y242/jettadude/000_1089.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1090.jpg
now that its taped off. clean the surface really good. i used carb cleaner to get everything. let dry then find a nice place to paint. somewhere with good ventalation and where no dust will fall on it. i used engine enamal with 500 degree protection. its a hard paint and it wont get messed up by the heat. http://i6.photobucket.com/albums/y242/jettadude/000_1092.jpg.
Then start spraying. they say to do all your coats in 10 minuet intervults and do it all within one hour. i did 4 coats. nice and thick and nice and bright. http://i6.photobucket.com/albums/y242/jettadude/000_1093.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1094.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1095.jpg
http://i6.photobucket.com/albums/y242/jettadude/000_1096.jpg
as i said im not quite done i need to paint the under side and weld in the new back but i had to post this i was excited. so there you have it. a how to mod your vr6 intake manifold. hopefuly that will help with anything you might need to polish as well. well tell me what ya think. total time 6 hours over 3 days. 30 bucks in parts. 50 for intake manifold. 80bucks for a grand worth of parts from someone else.
copyright me and dubnetworks.net do not repost anywhere else but dubnet without my permission. email at jettadude@dubnetworks.net