TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

injector spacers. how did you make yours?

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Old Jan 29, 2002 | 08:59 PM
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Dan94GT's Avatar
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From: Titusville, Fl
injector spacers. how did you make yours?

what would be something good to use to make an injector spacer. how thick would be optimal? the ones they sell ar only 1/4 inch thick and only claim a 2-3 hp gain. would bigger be much better? especially along w/ an open air cleaner.
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Old Jan 29, 2002 | 09:19 PM
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From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
most are made out of hard plastic or just sticking a couple gaskets together most are about .25" thick
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Old Jan 30, 2002 | 07:58 AM
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From: Stafford CT
Car: 1988 Camaro SC
Engine: LT1 SBC
Transmission: LT1 T56
Axle/Gears: 3.73 Moser 12 Bolt
Spacer

I just had to space the TBI Unit on my 350 1988 IROC and I STRONGLY suggest doing it right and NOT just stacking a buncha gaskets together. I got a sheet 1/4in thick of teflon and used the gasket as a template and it works great. Its also a lot more reliable and resilient than a gasket, which will settle over time. Hope this helps

TY
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Old Jan 30, 2002 | 01:32 PM
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Re: Spacer

Originally posted by TP355Z
I just had to space the TBI Unit on my 350 1988 IROC and I STRONGLY suggest doing it right and NOT just stacking a buncha gaskets together. I got a sheet 1/4in thick of teflon and used the gasket as a template and it works great. Its also a lot more reliable and resilient than a gasket, which will settle over time. Hope this helps

TY
They're talking about spacing the injector pod not the TBI. Just to clarify, as this has been a source of confusion in the past.
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Old Jan 31, 2002 | 11:36 AM
  #5  
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From: Stafford CT
Car: 1988 Camaro SC
Engine: LT1 SBC
Transmission: LT1 T56
Axle/Gears: 3.73 Moser 12 Bolt
my bad

Thanks Tas

Always Humbled

TP
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Old Feb 1, 2002 | 12:16 PM
  #6  
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GKK
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From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
Here's a picture of my raised Injector Pod using two injector pod gaskets.
Attached Thumbnails injector spacers. how did you make yours?-injectorpodtbi.jpg  
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Old Feb 1, 2002 | 12:48 PM
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Since that is not a surface that has to be sealed (fuel lines go into the injector pod itself) I just removed the gasket and used washers to space out the pod from the TB until the fuel adaptors on the pod where about to interfere with the TB unit. I would attach a pic but I don’t have my dc right now.
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Old Feb 1, 2002 | 12:48 PM
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GKK how tall are those 2 gaskets together? How much do gaskets cost?
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Old Feb 1, 2002 | 04:07 PM
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GKK
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From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
The two gaskets together are about 1/4" high. I got one from a tbi gasket kit I bought at autozone for $15 and I reused the original one since it was in great shape.
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Old Feb 1, 2002 | 04:30 PM
  #10  
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ok I feel better then. I got a phelonic 1/4" spacer for $25
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Old Feb 1, 2002 | 11:07 PM
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From: clinton,tn
94'_SS , you better look again at the injector pod not needing to be sealed at the throttle body. Just raising it with washers will let in a lot of unfiltered air. This area will draw more air per square inch than the best, lowest restriction, air cleaner on the market. You might want to just stack the gaskets or make one. You could even use wood, the harder the better. If you do use wood it would be a good idea to use some model airplane shelack or dope as they call it. The stuff thats fuel resistant. You can get it at a hobby shop, just ask for it by discription ,they know what your looking for. Just don't go in and ask to buy some dope or they may get the wrong idea.:lala:

Steve

Last edited by steve8586iroc; Feb 2, 2002 at 05:50 PM.
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Old Feb 4, 2002 | 12:55 AM
  #12  
ir0cz's Avatar
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
You guys w/ the injector spacers, could you tell any difference in power or gas mileage?? Thanks
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Old Feb 4, 2002 | 06:25 AM
  #13  
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From: Texas
I'd sure like to know the answer to this last question also!

Those who've done this mod, please tell us the performance results and any issues you encountered during the install.

Thanks in advance!
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Old Feb 4, 2002 | 10:07 AM
  #14  
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GKK
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From: California
Car: 91 Camaro RS Update: Sold Camaro, now own a "91" Corvette.
Engine: Corvette L98 TPI
Transmission: 700R4
My car felt stronger after I raised the injector pod but, I did the Ultimate TBI Mods at the same time.
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