i was wondering the way ryan aka the formula says to polish the plenum if it works well can u screw your plenum up is that what he is saying it took him 3 trys to get it right as in he had to get 3 plenums? hope not or is it that he just didnt get it shined good? well let me know thanks would like to do this soon!!

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1988 firebird ws6 formula350tpi msd 6al box blaster 3 coil accel 8.8 race wires hooker shorty headers hooker cat back system pro shift light a pillar gauge pod and water temp and air/fuel ratio gauges autometer oil pressure gauge b&m mega console shifter, march underdrive pullies, tpis airfoil cvr high torque starter (love it)
best 1/4 mile run of 14.44@ 96.53
this run is before the new exhaust system

 

any1??

 

I'd guess 3 tries to get the shine out of the aluminum just right,, it really is a pain in the to get it to looking like a "mirror".



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My Firebird
Your Car Here?
Part Diagrams

 

have u done this deadbird? just trying to get some ideas here! thanks

 

Hookin88formula, it took me 3 attempts to get it to a "professional", hi-polish. There is no way you can do permanent damage by just sanding (not with my method anyway)

If you start sanding, and find that you didn't achieve your goal. All you would do then, is start at one of the beginning steps again. (40 grit -400grit. Depends on condition) Email me if you have any other questions. It really isn't that hard. Good luck

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91 Formula
305 TPI 5speed
1LE/G92/WS6

Paxton SN93, SLP airfoil, ported/polished plenum, March pulleys, Crane AFPR(43psi),Crane Gold 1.6rrs,MSD coil,MSD6AL, Holley 9mm wires, fastchip, Bosch O2sensor, Bosch in-line pump(w/stock pump), SLP headers & catback,short shifter,3:73s w/Auburn posi,170* t-stat,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.

[This message has been edited by theformula (edited February 12, 2001).]

 

i sanded mine with i polish wheel then a rotary sanding bit in a drill then by hand and it looks great not as good as the mirror one but i like it i am getting a Mini Ram and i am going to do it to that also. the whole thing. it really makes it look better. i like it and i brightens the engine compartment. and you can do the runners and base plate also if you have time. just a good idea for a weekend or week job. have fun and dont break anything. and while you are at it . port the plenum. it helps in high speeds. just have fun now.

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1990 IROC-Z L98 350 TPI
AFPR 49PSI, GUTTED AIR BOXES, K&N, RAM AIR, PORTED PLENUM, B&M SHIFTER, 3.23 LIMITED SLIP, DUAL CATS, STOCK SUPER TURBO EXHAUST, COOPER COBRA XST's

MUSTANGS...ONLY 4 LUGS....HAHA THAT IS HILARIOUS.

 

how do u port the plenum? what is involed is that something u can mess up? im not into messing anything up? lol


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1988 firebird ws6 formula350tpi msd 6al box blaster 3 coil accel 8.8 race wires hooker shorty headers hooker cat back system pro shift light a pillar gauge pod and water temp and air/fuel ratio gauges autometer oil pressure gauge b&m mega console shifter, march underdrive pullies, tpis airfoil cvr high torque starter (love it)
best 1/4 mile run of 14.44@ 96.53
this run is before the new exhaust system

 

Porting the plenum is rather easy. However, you can run the risk of porting "through" the plenum itself. I've never heard of anyone going to that extreme though.

Porting the plenum involves removing the cast wall behing the opening of the plenum. You use a rotary type tool like a Dremel to do this. If you are concerned with damaging the plenum, just take the wall down. Thats all I did.