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Need a source for TBI bonnet

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Old 08-26-2009 | 02:14 PM
  #1  
avst03's Avatar
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From: Vancouver, B.C. Canada
Car: 83 GMC G3500
Engine: 350 w/ EBLFlash and TBI heads
Transmission: TH400
Axle/Gears: 4.56
Need a source for TBI bonnet

Well I tried hunting around the auto wreckers for a Cadillac TBI bonnet only 4 cars in the yard totally stripped no luck.

Does anyone know the exact model and year of the FWD Cadillacs that used this system. I know it was late 80's to early 90's but I need the exact year and model so I can maybe order it.

I was looking at some of the TBI intakes on eBay. But I’m worried they will not seal well upset MAF readings and let dust in. Has anyone tried one or found one that works well?

Does anyone carry a OEM or aftermarket bonnet?

16197427 PCM w/MAF hack 83 G3500


Thanks

Mike...
Old 08-26-2009 | 03:00 PM
  #2  
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From: Anchorage, Ak
Car: 1988 Pontiac Firebird
Engine: 5.0 TBI
Transmission: W/C T5
Axle/Gears: 3.08 Posi
Re: Need a source for TBI bonnet

Should be as easy as finding a carb bonnet.
Old 08-26-2009 | 03:27 PM
  #3  
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Re: Need a source for TBI bonnet

Mine came off ebay. I used an aluminum spacer with built in neophreme rubber gasket/o ring with standard 5.125 AC gasket. No leaks.
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Old 08-26-2009 | 08:35 PM
  #4  
kkingsrulee's Avatar
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From: Temple City, CA
Car: 1990 Camaro RS
Engine: V8 305 TBI
Transmission: W/C T5
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Re: Need a source for TBI bonnet

Doesn't bonnet mean hood?

In UK english?
Old 08-26-2009 | 09:59 PM
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From: Moorestown, NJ
Car: 88 Camaro SC
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Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Need a source for TBI bonnet

Originally Posted by avst03
Well I tried hunting around the auto wreckers for a Cadillac TBI bonnet only 4 cars in the yard totally stripped no luck.

Does anyone know the exact model and year of the FWD Cadillacs that used this system. I know it was late 80's to early 90's but I need the exact year and model so I can maybe order it.

I was looking at some of the TBI intakes on eBay. But I’m worried they will not seal well upset MAF readings and let dust in. Has anyone tried one or found one that works well?

Does anyone carry a OEM or aftermarket bonnet?

16197427 PCM w/MAF hack 83 G3500


Thanks

Mike...
Spectre makes one. http://www.summitracing.com/parts/SPE-9849/. Let me know how the rest of the install goes and if you need any help.
Old 08-26-2009 | 10:07 PM
  #6  
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Need a source for TBI bonnet

Originally Posted by kkingsrulee
Doesn't bonnet mean hood?

In UK english?
Usually, yeah. But in this case, I think he meant.....

"Hood", as in Top. The TOP of a carb/TBI. Right?
Old 08-26-2009 | 11:16 PM
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From: Victoria, Tx
Car: 1992 Camaro RS Convertible
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Transmission: 700R4
Axle/Gears: LS1 posi/disk 3.42
Re: Need a source for TBI bonnet

http://www.partzfinder.com/Spectre_S...p/spe-9841.htm

i just ordered this on monday, let u know how it turns out when it comes in..... delivery date supposed to be the 8-31-09. they have a few others but this was the cheapest one and the cheapest i found online as well
Old 08-27-2009 | 01:03 AM
  #8  
avst03's Avatar
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From: Vancouver, B.C. Canada
Car: 83 GMC G3500
Engine: 350 w/ EBLFlash and TBI heads
Transmission: TH400
Axle/Gears: 4.56
Re: Need a source for TBI bonnet

Originally Posted by dimented24x7
Spectre makes one. http://www.summitracing.com/parts/SPE-9849/. Let me know how the rest of the install goes and if you need any help.
Thanks dimented24x7 I'll have some questions once I get it installed.
Old 08-27-2009 | 01:41 AM
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avst03's Avatar
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From: Vancouver, B.C. Canada
Car: 83 GMC G3500
Engine: 350 w/ EBLFlash and TBI heads
Transmission: TH400
Axle/Gears: 4.56
Re: Need a source for TBI bonnet

Originally Posted by vorticaldavid
http://www.partzfinder.com/Spectre_S...p/spe-9841.htm

i just ordered this on monday, let u know how it turns out when it comes in..... delivery date supposed to be the 8-31-09. they have a few others but this was the cheapest one and the cheapest i found online as well
Thanks for the link!


Does anyone make one with a port for the breather tube.
Old 08-27-2009 | 04:30 AM
  #10  
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Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Need a source for TBI bonnet

I dont think so. What I did was to drill a hole and install a rubber grommet and used a male/male hose barb fitting to hook the hose up to the grommet. I think it was a PCV grommet for a ford ranger and a 3/8" hose barb fitting. Make sure you measure your grommet with the fitting installed in it before you drill the hole. The hole should be slightly smaller to allow a snug fit.
Attached Thumbnails Need a source for TBI bonnet-dsc00384.jpg  

Last edited by dimented24x7; 08-27-2009 at 04:37 AM.
Old 08-27-2009 | 03:00 PM
  #11  
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Car: 84 TA / 89 Formula
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Transmission: T56 / 700R4
Axle/Gears: 3.73 / 3.27
Re: Need a source for TBI bonnet

btw... TBI does usually not have a MAF sensor, i guess you were speaking of the Intake Air Temperature (IAT) sensor..
Old 08-27-2009 | 08:28 PM
  #12  
avst03's Avatar
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From: Vancouver, B.C. Canada
Car: 83 GMC G3500
Engine: 350 w/ EBLFlash and TBI heads
Transmission: TH400
Axle/Gears: 4.56
Re: Need a source for TBI bonnet

Originally Posted by dimented24x7
I dont think so. What I did was to drill a hole and install a rubber grommet and used a male/male hose barb fitting to hook the hose up to the grommet. I think it was a PCV grommet for a ford ranger and a 3/8" hose barb fitting. Make sure you measure your grommet with the fitting installed in it before you drill the hole. The hole should be slightly smaller to allow a snug fit.
I was thinking of drilling and tapping a fitting in.

I looked at a Spectre 9841 plenum locally today but I'll order online. They wanted $115CDN plus 12% taxes.
Old 08-27-2009 | 08:41 PM
  #13  
avst03's Avatar
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From: Vancouver, B.C. Canada
Car: 83 GMC G3500
Engine: 350 w/ EBLFlash and TBI heads
Transmission: TH400
Axle/Gears: 4.56
Re: Need a source for TBI bonnet

Originally Posted by ownor
btw... TBI does usually not have a MAF sensor, i guess you were speaking of the Intake Air Temperature (IAT) sensor..
I'm planning on running a 16197427 PCM from a 95 truck with a 85mm MAF and dimented24x7's code for the 16197427w/MAF.

This will give me a MAF sensor IAT sensor and a MAP sensor as a backup.
Plus it will look cool
Old 08-28-2009 | 03:58 AM
  #14  
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Car: 84 TA / 89 Formula
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Axle/Gears: 3.73 / 3.27
Re: Need a source for TBI bonnet

hehe, definately sounds like you know what you're doing
btw, when you get the 9841, could you possibly do some measurements of A, B, C for me like in the attached pic please? i'm trying to find a suitable base for fabbing up an air cleaner assy that can also retain my cowl induction.
thanks in advance
Attached Thumbnails Need a source for TBI bonnet-spectre9841_meas.jpg  
Old 08-28-2009 | 12:51 PM
  #15  
avst03's Avatar
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Joined: Feb 2007
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From: Vancouver, B.C. Canada
Car: 83 GMC G3500
Engine: 350 w/ EBLFlash and TBI heads
Transmission: TH400
Axle/Gears: 4.56
Re: Need a source for TBI bonnet

Originally Posted by ownor
hehe, definately sounds like you know what you're doing
btw, when you get the 9841, could you possibly do some measurements of A, B, C for me like in the attached pic please? i'm trying to find a suitable base for fabbing up an air cleaner assy that can also retain my cowl induction.
thanks in advance
I'll post the measurements if someone doesn't post them before me.
Old 08-31-2009 | 11:34 PM
  #16  
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From: Victoria, Tx
Car: 1992 Camaro RS Convertible
Engine: L03
Transmission: 700R4
Axle/Gears: LS1 posi/disk 3.42
Re: Need a source for TBI bonnet

Originally Posted by ownor
hehe, definately sounds like you know what you're doing
btw, when you get the 9841, could you possibly do some measurements of A, B, C for me like in the attached pic please? i'm trying to find a suitable base for fabbing up an air cleaner assy that can also retain my cowl induction.
thanks in advance

mine came in but i didnt have anything to measure it with, but from the looks of it, the only way it seems like it would work for a cowl hood(meaning turned around towards the windshield) would be to get a spacer ring and put it under the plenum. it will definately clear the stock hood tho

on another note, its a real nice piece. they even gave me a free t-shirt and it came with a bad too. that was totaly unexpected and even tho the shipping took a couple days longer than summit would have, i am very happy with my purchase from partzfinder.com.
Old 08-31-2009 | 11:58 PM
  #17  
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From: Victoria, Tx
Car: 1992 Camaro RS Convertible
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Transmission: 700R4
Axle/Gears: LS1 posi/disk 3.42
Re: Need a source for TBI bonnet

pics.....[IMG]file:///C:/Users/david%20ramirez/Pictures/100_1047.JPG[/IMG]
Attached Thumbnails Need a source for TBI bonnet-100_1047.jpg   Need a source for TBI bonnet-100_1049.jpg   Need a source for TBI bonnet-100_1051.jpg  
Old 09-01-2009 | 12:05 AM
  #18  
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Re: Need a source for TBI bonnet

oops... dbl post!
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