bmx9854 Posted August 5, 2008 Report Share Posted August 5, 2008 I had this head with 80K laying around that I eventually plan on putting in the 850 t5 so I decided to try some p&p. So far I've only done two exhuast outlets and I think they came out good so far, but I still need to go over them with a high grit sand paper or something to really smooth them out. I will do the exhaust and intake manifolds soon too. Any suggestions would be great thanks.my projectors in the making are in the background....^You can kinda get an idea of how much I took off....Yes, that is pink nail polish because I couldn't find any dyechem but it really works just as well!! HAHA Link to comment Share on other sites More sharing options...
bmx9854 Posted August 5, 2008 Author Report Share Posted August 5, 2008 Sorry how about this.... Link to comment Share on other sites More sharing options...
BlackT5 Posted August 5, 2008 Report Share Posted August 5, 2008 Remember not to smooth out the intake ports. Link to comment Share on other sites More sharing options...
bmx9854 Posted August 5, 2008 Author Report Share Posted August 5, 2008 Remember not to smooth out the intake ports.Care to elaborate? Do you mean like the half circle notch at the top of the intake side? Thanks Link to comment Share on other sites More sharing options...
BlackT5 Posted August 5, 2008 Report Share Posted August 5, 2008 I'm no expert but as I understand it, keeping a rough finish on the intake ports helps fuel atomization. Link to comment Share on other sites More sharing options...
Account_Deleted_T5M Posted August 5, 2008 Report Share Posted August 5, 2008 I'm no expert but as I understand it, keeping a rough finish on the intake ports helps fuel atomization.+1 keep a rough finish on the intake runners, and a smooth finish on the exhaust side. Link to comment Share on other sites More sharing options...
Che'_Moderator Posted August 6, 2008 Report Share Posted August 6, 2008 F that. Sand the intake. 80 grit is what you will want to finish with. Link to comment Share on other sites More sharing options...
Account_Deleted_T5M Posted August 6, 2008 Report Share Posted August 6, 2008 Extruding would be the best option, but costs $$$$ Link to comment Share on other sites More sharing options...
turbor850 Posted August 6, 2008 Report Share Posted August 6, 2008 F that. Sand the intake. 80 grit is what you will want to finish with.F that. Turn the engine on and put actual sand through the intake to port everything out that is what you will want to finish with. Link to comment Share on other sites More sharing options...
bmx9854 Posted August 6, 2008 Author Report Share Posted August 6, 2008 Heres an update, I finished 1 exhuast outlet. Its probably as smooth as I could get it with the tools I have. First I used this pencil die grinder with a cabide tip with plenty of wd40 to keep it cool, then I used a small cone alum oxide grinder bit to smooth the really rough edges and uneveness, then to 80 grit sand roll and then...a scotch brite like peice and finally I hit it with a buff wheel with a bit and some emery compund paste. So what is the consensus on the intake side.....keep it rough or smooth? Link to comment Share on other sites More sharing options...
Che'_Moderator Posted August 6, 2008 Report Share Posted August 6, 2008 Needs to be smoother. Switch to 200 grid and hand sand it and then 320. Link to comment Share on other sites More sharing options...
turbomatt Posted August 6, 2008 Report Share Posted August 6, 2008 F that. Sand the intake. 80 grit is what you will want to finish with.The toad is right. Don't even attempt to touch the bowls either without proper tools and know how. Take it somewhere to have it done or I'll do it for 600. including chambers if you send it to me stripped and clean, with seats roughed. .Btw- those are not proper tools. Ever hear of a fordham? Link to comment Share on other sites More sharing options...
bmx9854 Posted August 6, 2008 Author Report Share Posted August 6, 2008 The toad is right. Don't even attempt to touch the bowls either without proper tools and know how. Take it somewhere to have it done or I'll do it for 600. including chambers if you send it to me stripped and clean, with seats roughed. .Btw- those are not proper tools. Ever hear of a fordham?No......? Link to comment Share on other sites More sharing options...
turbomatt Posted August 6, 2008 Report Share Posted August 6, 2008 No......?C.C. specialty has some good units and really good selection of cutters and sanding rolls. Also MSC has lots of good carbide cutters. There is a good book offered by Summit(gag) with lots of good techniques and tips. Link to comment Share on other sites More sharing options...
Che'_Moderator Posted August 6, 2008 Report Share Posted August 6, 2008 AL heads are so soft I never even bother with cutters. The wheels will remove material very quickly. Link to comment Share on other sites More sharing options...
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