I have a dremel but I was just wondering what bits you guys used to grind down the places named off in the article about Ultimate TBI mods. It may be a little while before I have time to park my truck to do these mods but I am in the planning phase.

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87 C-10
305 TBI
(yeah I know its a truck, but you are the best TBI guys I have found)
Performance
**Somewhere around a 17.0 @ 85 ish (G-Tech)
*Freshly rebuilt 305 bored +0.030 over (311)
*K&N Airfilter
*Homemade Ramair w/ modified intake
*180 thermostat
*Custom True dual exhaust(Flowmaster 40's)No Cat's
*TD Performance TBI Spacer
*Mobil 1 10-w30
*Redline Water Wetter
**(alot more done, but I don't feel like boring everybody)

 

I used the fiberglass reinforced cut-off wheel to cut the ridges off around the bores.Then I used one of the grinding stones to smooth out the edges.I went ahead and polished the whole tb unit while I had it off the car. Came out nice.

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'91 RS 5.0 TBI
New paint-solid black
ROH Snyper wheels-17x9 wrapped in 275/40/17
Eibach sportline springs
ASCD SS hood, High-rise Z-28 spoiler
Flowmaster cat-back,gutted cat,Iroc sway bars,wonderbar,140 Iroc gauge cluster,Iroc steering box,open air filter,AFPR,smog delete
TBI mods
383 stroker in the works

President-Austin 3rd Gen F-body c.c.
Austin 3rd Gen F-body c.c. message board at
www.hpsmotorsports.net
See my car and others at www.ride4life.net

 

i used the fine sanding drums to do all the smoothing. it is a little slower but i felt like i could get it more exact.

lata
tim

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91 Camaro RS-LO3,Auto.
14.209@95.46mph
Best 60' 1.917
Check Out The East Coast F-Body Nationals Home Page
www.geocities.com/njspeeder

My MAFB.ORG Home Page
www.mycar.net/mafb/registry/detail.cfm?id=299

DSI Racing Home Page
www.geocities.com/foff667

 

i was told to use carbide reinforced grinding drums/wheel. by pablo.

i used a paper sanding drum, high grit, but you gotta get a few of em, cuz they get gummed up, and they wear down fast too. Never did do all of one yet, no reason to now, except that i might and just sell the ones i have. nebody interested, ill do the ultimate mods, you buy the ultimate tbi worked base for $50. i have 2 1 11/16's ready to be grinded.

 

Which mods would you do to the TBI unit? Are you just talking about the grinding parts or also the Adjustable FP regualor? Are you wanting a trade in of my current TBI unit? I am interested, just fill me in on some more facts.

------------------
87 C-10
305 TBI
(yeah I know its a truck, but you are the best TBI guys I have found)
Performance
**Somewhere around a 17.0 @ 85 ish (G-Tech)
*Freshly rebuilt 305 bored +0.030 over (311)
*K&N Airfilter
*Homemade Ramair w/ modified intake
*180 thermostat
*Custom True dual exhaust(Flowmaster 40's)No Cat's
*TD Performance TBI Spacer
*Mobil 1 10-w30
*Redline Water Wetter
**(alot more done, but I don't feel like boring everybody)

 

just grind em, and sell the base. no pod or anything.

 

I know I have alot of questions but I am just still working on getting used to this sight. On the bases you currently have you are doing all of the grinding mentioned in the ultimate TBI mods part 2 section right? How would you expect payment I have done some buying of stuff on the internet from individuals but all that was shipped COD, is that what you had in mind? I would be willing to buy one of your units if you will ship it COD.

------------------
87 C-10
305 TBI
(yeah I know its a truck, but you are the best TBI guys I have found)
Performance
**Somewhere around a 17.0 @ 85 ish (G-Tech)
*Freshly rebuilt 305 bored +0.030 over (311)
*K&N Airfilter
*Homemade Ramair w/ modified intake
*180 thermostat
*Custom True dual exhaust(Flowmaster 40's)No Cat's
*TD Performance TBI Spacer
*Mobil 1 10-w30
*Redline Water Wetter
**(alot more done, but I don't feel like boring everybody)

 

Ohh yeah I forgot to ask is there any noticable power gain after performing these mods?

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87 C-10
305 TBI
(yeah I know its a truck, but you are the best TBI guys I have found)
Performance
**Somewhere around a 17.0 @ 85 ish (G-Tech)
*Freshly rebuilt 305 bored +0.030 over (311)
*K&N Airfilter
*Homemade Ramair w/ modified intake
*180 thermostat
*Custom True dual exhaust(Flowmaster 40's)No Cat's
*TD Performance TBI Spacer
*Mobil 1 10-w30
*Redline Water Wetter
**(alot more done, but I don't feel like boring everybody)

 

Power gain? Probably... hard to say... Makes you feel good though :-). I ground mine with the silicide oxide (? I think? The blue/grey ones not the brown ones) wheels my dremel came with. Wore down two of them I think, you should definitely buy some extras. The brown ones filled up with aluminum particles too fast. I did do the final smoothing with sanding drums too, but the main grinding I did with the stones. Oh and I used the fiberglass cutting wheels to cut off the ridges at first, but that doesn't really save you a whole lot of time. It is pretty easy to break the cutting wheels while doing this. If I did it again I might just grind everything.

 

ya the ultimate tbi two mods. grinding down the bore ridges and radiusing them into the bores. plus grinding down the throttle shaft, PLUS, kniving the blades so that they are sharp, but are still the correct size. to fill the bore.

i would suggest paypal, its the easiest way to pay on the net, im a verified paypal member, and i give you my word, i wont screw you over. if you still want cod, youll have to pay for it, but i think its like another 7 bucks. hell thats what it will cost to ship without it cod. so i would guess 14 for cod, 7 for non.

btw, i havent done them yet, and wouldnt get to it till after school is out the first week in may.