Holley Truck TBI
09-17-2010, 08:15 PM
#1
Supreme Member
Thread Starter
Join Date: Dec 2005
Location: Texas City, Texas Area
Posts: 1,244
Likes: 0
Received 1 Like
on
1 Post
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Holley Truck TBI
ANyone running the Holley Truck TBI unit???? Or Turbo Citys bored out TBI unit??? Thoughts on these..The Holley is 670 CFM, and the Turbo City is 590 CFM...I think stock is around 530 CFM, or so..Thanks
09-17-2010, 11:17 PM
#2
Junior Member
Join Date: Jun 2009
Location: Channelview,Tx
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 Chevy Short Wide
Engine: 383 Vortec TBI
Transmission: 700r4
Axle/Gears: 3.73
Re: Holley Truck TBI
Im running a Holley tb but with a GM injector pod on top of it.Its the only way to go.From what I heard the Holley injectors suck.
09-18-2010, 12:52 AM
#3
Supreme Member
iTrader: (25)
Join Date: Feb 2006
Location: Manteca,California. Nor Cal.
Posts: 7,260
Likes: 0
Received 5 Likes
on
5 Posts
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: Holley Truck TBI
thats what they say. thier are a million of threads on these. I have just gotten my hands on one and its not installed yet. so we'll see if thier is some rediculous nightmare with it when I do it.
09-18-2010, 05:58 AM
#4
Supreme Member
Join Date: Jun 2006
Location: West-Central
Posts: 2,199
Likes: 0
Received 1 Like
on
1 Post
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: Holley Truck TBI
Holley 670 has 50mm bores, turbocity's 590 cfm has 46mm bores and is a bored out 43mm TB.
A GM BBC TB has 50mm bores and should be close to the holley 670, can be bored out to 54mm to flow quite a bit over 700cfm, if remember correct.
Intake manifold bores should be = or > then the TB bores.
Here is a pic of turbocity's 46mm TB, works nice, should be good for around 340 fwhp.
https://www.thirdgen.org/forums/atta...e-dsc08258.jpg
A GM BBC TB has 50mm bores and should be close to the holley 670, can be bored out to 54mm to flow quite a bit over 700cfm, if remember correct.
Intake manifold bores should be = or > then the TB bores.
Here is a pic of turbocity's 46mm TB, works nice, should be good for around 340 fwhp.
https://www.thirdgen.org/forums/atta...e-dsc08258.jpg
09-18-2010, 10:24 AM
#5
Moderator
iTrader: (1)
Join Date: Mar 2002
Location: Chasing Electrons
Posts: 18,408
Likes: 0
Received 217 Likes
on
203 Posts
Car: check
Engine: check
Transmission: check
Re: Holley Truck TBI
The older Holley TBI units used the Chrysler injectors. Which can be ID'd by have a round black plastic cap for a connector. These injectors are worthless.
RBob.
09-18-2010, 10:41 AM
#6
Re: Holley Truck TBI
I think the holly injectors are BOSCH. They may have switched. The old Accells were made by SMP and they switched to bosch.
As for the Delphi, Mercedes just had a big recall for them.
Just sayin....don't let labels dictate the price you pay or the quality you think y you're getting.
09-19-2010, 02:28 AM
#7
Supreme Member
iTrader: (25)
Join Date: Feb 2006
Location: Manteca,California. Nor Cal.
Posts: 7,260
Likes: 0
Received 5 Likes
on
5 Posts
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: Holley Truck TBI
The new Holley's are fine. They have been using Delphi injectors for some time. These work and can be ID'd by having the connectors come off the injector sideways (parallel to the ground).
The older Holley TBI units used the Chrysler injectors. Which can be ID'd by have a round black plastic cap for a connector. These injectors are worthless.
RBob.
The older Holley TBI units used the Chrysler injectors. Which can be ID'd by have a round black plastic cap for a connector. These injectors are worthless.
RBob.
Thread
Thread Starter
Forum
Replies
Last Post
86CamaroDan
Engine/Drivetrain/Suspension Parts for Sale
2
09-29-2015 10:08 PM
