They havent been polished yet, but I just got done porting em, they are at my website, and I wont attempt to host them here, cause geocities sucks and it never works!!!!

Give me your feedback on what you think, I would really appreciate it
http://www.geocities.com/softtailduece01/

 

holy crap, what a horrible porting job!!! looks like a blind monkey went at it with a wood file and 60 grit sand paper.


so when ya want to do mine?????

 

Hehe, more like a blind monkey with a big chisel and mallet. Just smooth those runners out

I started porting my plenum yesterday, and I have one comment: Summit porting supplies really suck. I ordered a 45 dollar porting and polishing kit from summit, all of the bits explode after about 30 seconds of use, 20 seconds of hard use.. the stone bits I picked up at a local hardware store just end up melting the aluminum and coating themselves in it, so they are no help. It took me six summit bits to take out the walls behind the throttle body on the plenum...lol

 

For aluminum, I've found that HSS cutters work very well and are durable if you don't get them too hot and start loading up the teeth. I didn't have any trouble porting my plenum and base with my little Dremel using these bits.

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1990 IROC 350
Mods: Too busy trying to make it run right to mod it.
Airfoil, Dynomax cat-back, MSD coil, 180 t-stat, Bald Eagle tires,
Hypertech fan switch, Accel 23# injectors, Holley AFPR, ported plenum,
Ported Daytona Yellow stock base, Moroso valve covers, other stuff,
Ruger P95DC, hot wife, new oil filter, thick rubber floormats, no cats.
18.0 @ 85MPH since I'm one big-a$$ MF
"It's better to have and not need than to need and not have."

 

Nice job but remember that it's attention to detail thats sets you apart from the pack.

 

Ill get it up when im done polishing, Ill smooth everything out, dont worry

 

couple good things for porting aluminum...

a long reach die grinder (i got a snapon but they are pricey)

a snapon carbide burr (again also pricey but this one is well worth the money) use wd-40 on them and they wont load up with aluminum. i got mine from snapon but you can get them elsewhere too. they are great for large amounts of metal removal

grainger sells sandpaper cones and extended bits they work excellent on smoothing out the rough surfaces and you can reach all the way inside runners. i think www.grainger.com will get you there. i have one down the street from me so its no big deal. but they ship anywhere and sell them in larger quantity so it is nice. you can use a few of these quickly but they do an excellent job on a high speed die grinder and remove some material too if you use the rough grit ones.

anyway looks good, but cant you sharpen to inbetweens on the runners a bit? or were you not done or should you not do that? cuz i did it on my super ram setup.

my $.02

 

What do you mean sharpen? Im gonna smooth it down alot when I polishem!!!

 

where the two runners meet make is pointed sharp


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87 z28 bowtie aluminum 420small block dry sump crower lt. wt. knife edged crank oliver lt wt rods brodix track 1's super ram intake slp 1 3/4 headers accel dfi art carr 700 r4 3.42 gears ssm sub frame/ladder bars.....other parts on the way ,soon to be finished!! couple more weeks!!!

http://people.ne.mediaone.net/gdm

 

Depends on where you are talking about on the runners. If its on the base end, you want a taper to a sharp edge, if its on the plenum end, a rounded edge would be best.

 

Thats what I was planning on doing. Do u think what I did will help? Will it kill my bottom end?

 

Well, from what I understand the long runners are what make up your bottom end, so it really shouldn't affect your lowend.

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1990 Pontiac Formula 350
Rebuilt 355
COMPCAMS 212/212 .440/.440 cam
Flowmasters 80 series.

 

looks pretty damn good.....how long did it take you?

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Check out MyGTA Nicknamed:The Big Red Machine
***AOL IM ClarkeMustGoNow***
Moderator at www.transamgta.com
"What does not kill us only makes us stronger"

Tony

 

Well Ill get the pics up tonight or tomorrow, but I halfAssed it and it only took about 3 hours total, if you look at madmaxes, his $hit, is perfect

 

yeah i know..its sick

 

I bought a carbide burr from a local hardware store for 10.00 bucks, keep lubricated with atf. With a slow grinding speed, and the alum. will just about come off with a wire brush. Only used 2 for the heads and intake, plenum.

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87 GTA 355/700r4
ported&polished 083 heads
xe268h comp cam
1 5/8 blackjack alumicote
homebuilt y pipe,pasesetter 3in mandrel cat back.
ported/manifold,upper plentum, tpis maf.
airfoil, 24# svo injectors, home programed chip, underdrive pulleys, erson roller rockers, chromemolley pushrods,2100 stall, shiftkit, 373 10 bolt.