Grinding TBI
#1
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
Grinding TBI
Doing the Ultimate TBI mods right now ... maybe 1/3 done after 5-10 minutes... since I cheated and used a bench grinder to grind down the sides
Will post some pics once I'm done
Will post some pics once I'm done
#3
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
hrrrmmmmm
*mumbles something about lousy grinding stones*
But in order to finish it I gotta get some better grinding stones ... *lol* ...
Oh btw.... how strong is the TBI .. really ? Because I noticed I don't have a lot of thickness right in the area where I need to grind the TBI in order to move the injector housing up a little bit ... so the fuel lines will clear
Reason I'm asking is.. I saw a TBI at the junkyard... snapped.. in half !! *lol* never seen one like that before *lol*
But in order to finish it I gotta get some better grinding stones ... *lol* ...
Oh btw.... how strong is the TBI .. really ? Because I noticed I don't have a lot of thickness right in the area where I need to grind the TBI in order to move the injector housing up a little bit ... so the fuel lines will clear
Reason I'm asking is.. I saw a TBI at the junkyard... snapped.. in half !! *lol* never seen one like that before *lol*
#4
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
#5
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Car: 1991 Camaro Z28
Dude that is looking sweet. I have been thinking of doing them myself. So let me know how much of a difference it makes. Sorry I have not responded in a while I just got back in town from Seattle.
#6
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
Not yet
Not done yet ... been having problems with my dremel attachments ... *lol*
I want to grind it some more though ... almost like half between boring out and chamfering
Garage's a mess so I can't find half of my tools *lol*
I want to grind it some more though ... almost like half between boring out and chamfering
Garage's a mess so I can't find half of my tools *lol*
#7
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Your progress looks good so far. I wouldn't grind anymore but instead take some sand paper and smooth out the rough edges. That will improve its asthetics a bit. I beilive this mod increases flow by 4% or so but your motor isn't air limited at this time. You therefore won't feel any difference in the but dyno.
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#8
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
Yup
Agree.. I got some nicks and nacks there ... need to do some serious sanding ..... may have to do it by hand though because I don't have a the mandrel for the longer tapered sanding cones ya use for porting heads and manifolds
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Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
need to do some serious sanding
#12
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
*lol*
Well I got some serious cuts in it *lol* but yeah I may just do it on a lunch break or something *lol*
#13
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Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
How did that help your performance?
And of course, the ultimate TBI mods won't make much of a difference on a stock or low performance engine. I still think it's worth doing though, if you have the tools and the time.
#14
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Car: 1991 Camaro Z28
Yeah right on man. I have thought about doing them just haven't had the time to take the car off the road. I am considering getting a junkyard piece and working one of those though then when it is done swapping it on the car in a few minutes.
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Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
I have thought about doing them just haven't had the time to take the car off the road.
I have 2 spare complete TBI units in the garage just for parts and/or just tinkering with.
#16
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Car: 1991 Camaro RS
Engine: LO3
Transmission: 700R4
Axle/Gears: 3.42 LS1
Yup
I need to go and get me some spare parts .. like 3-4 IAC's and TPS's *lol* keep them around just in case .. besides they uhmmm are real cheap at junk yards due to their size
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