BBK Throttle Bodies Experience/Rebuilders
Thread Starter
Instructor
Joined: Aug 2006
Posts: 247
Likes: 0
BBK Throttle Bodies Experience/Rebuilders
Hi!
I am going to be needing to get a replacement throttle body assembly for my trusty '89 6 spd (the worn shaft/weird idle problem). The engine is stock and I have been considering the BBK 52 mm new unit. Has anyone had any experience with this and, if so, how did it work out (were there any problems)? Alternatively, if anyone knows of a seller of quality rebuilt units on an exchange basis, please let me know.
Many thanks!
Chris Kennedy
Houston, Texas
I am going to be needing to get a replacement throttle body assembly for my trusty '89 6 spd (the worn shaft/weird idle problem). The engine is stock and I have been considering the BBK 52 mm new unit. Has anyone had any experience with this and, if so, how did it work out (were there any problems)? Alternatively, if anyone knows of a seller of quality rebuilt units on an exchange basis, please let me know.
Many thanks!
Chris Kennedy
Houston, Texas
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
I'm running a 52mm BBK on an '89 with no air flow issues at idle or across the throttle ranges. You will need to "stretch" the plastic duct for the TB side that attaches between the TB and MAF. Use one of these: http://www.harborfreight.com/cpi/cta...temnumber=4853 to crank open the duct on the TB end then use a propane torch and slightly heat the rubber where the clamp would normally ride. This heating allows it to relax the plastic enough to slip the duct onto the TB without ripping, cracking, or going with an aftermarket duct. Don't worry about streching it a hair too far as the plastic will contract as it cools.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
I've run a 52mm BBK TB on the mostly stock '88 for ~9yrs with no reliability issues and no tip-in issues during acceleration from a stop.
Only issue for me was that I had to file down the front opening to get an easier fit of the boot.
Only issue for me was that I had to file down the front opening to get an easier fit of the boot.
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Le Mans Master
Joined: Aug 1999
Posts: 7,339
Likes: 137
From: WilkesBarre PA
I had one issue with my 58mm BBK. The linkage loosened up where the shaft and linkage connect. I just put hit it with the welder no biggie. I found it loose because my idle would bounce around high and low.
I've have it about 6 years and have put tons of abuse to it.
I've have it about 6 years and have put tons of abuse to it.
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
I have a BBK/edelbrock unit that is 52. There is a slight hesitation, then lots of throttle right up front when the blades open....Don't know if I have mis adjusted the throttle position sensor, but I did it twice,, and it seems the same.
Don't know if the Edelbrock equation changes anything, other than putting their hand in the till.
Don't know if the Edelbrock equation changes anything, other than putting their hand in the till.
