TPI Manifolds.
12-20-2017, 08:13 AM
#1
Supreme Member
Thread Starter
iTrader: (2)
Join Date: Mar 2014
Location: South Ms
Posts: 4,435
Received 724 Likes
on
493 Posts
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
TPI Manifolds.
Would the 305 TPI manifolds for an 87-88 car be the same as the 350 TPI manifolds? I know the TBI manifolds/ y-pipe aren't the same.
12-25-2017, 01:55 PM
#2
02-07-2018, 11:53 AM
#4
Supreme Member
Thread Starter
iTrader: (2)
Join Date: Mar 2014
Location: South Ms
Posts: 4,435
Received 724 Likes
on
493 Posts
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: TPI Manifolds.
What size pipe plugs replace the AIR Tubes I'm removing? Ive done it before and used to know but I just don't remember.
02-07-2018, 12:19 PM
#7
Re: TPI Manifolds.
An inverted flare plug will seal on the flange the old AIR pipes sealed on. A pipe plug will try to seal the threads, and has 'worked' for some people. I've used both at one point or another, and the flare fittings fit a lot better, and seal better.
A true pimp just cuts the AIR pipe flush against the existing nut with a hacksaw, and then welds the damn thing closed. Flawless Victory!
A true pimp just cuts the AIR pipe flush against the existing nut with a hacksaw, and then welds the damn thing closed. Flawless Victory!
Trending Topics
02-07-2018, 01:32 PM
#8
Supreme Member
Thread Starter
iTrader: (2)
Join Date: Mar 2014
Location: South Ms
Posts: 4,435
Received 724 Likes
on
493 Posts
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: TPI Manifolds.
I used the brass plugs a few times with some RTV never had issues. Stripped a bolt out to my smog pump though it may put a halt to my plans for now. Not a lil stripped either, totally stripped.
02-07-2018, 01:52 PM
#9
Re: TPI Manifolds.
Post #59 has a air pump for sale. What do you need a air pump if your deleting the air tubes ?
https://www.thirdgen.org/forums/tpi/...-350tpi-2.html
https://www.thirdgen.org/forums/tpi/...-350tpi-2.html
02-07-2018, 02:02 PM
#10
Supreme Member
Thread Starter
iTrader: (2)
Join Date: Mar 2014
Location: South Ms
Posts: 4,435
Received 724 Likes
on
493 Posts
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: TPI Manifolds.
Its coming out.. eventually. Stripped one the bolts trying to take off the air pump so I just tightened the other back down for now to let my knuckle heal and cease the cursing. Lol. I have a delete pulley to go back in place of the air pump when I do remove it. Also plan to switch to TPI manifolds and Magnaflow y-pipe if everything works out and I have time.
02-12-2018, 03:23 PM
#11
Supreme Member
Thread Starter
iTrader: (2)
Join Date: Mar 2014
Location: South Ms
Posts: 4,435
Received 724 Likes
on
493 Posts
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: TPI Manifolds.
If I remember correctly there is a spacer between the y-pipe and exhaust manifold on the TPI exhaust. If I order a magnaflow y-pipe will I need this spacer? Is this spacer something a muffler shop would keep in stock for maybe other applications or do I need to track one down?
02-12-2018, 03:55 PM
#12
Re: TPI Manifolds.
You'll need to track one down. It's not a typical exhaust donut, it's basically the EFE flapper housing without the flapper. The right one has "HO" cast into it, a couple ears to locate it between the studs, etc. You probably have the same kind of thing with the low output manifolds. Might be able to just bore it out a bit to make it match the manifold.
Thread
Thread Starter
Forum
Replies
Last Post
NightHawk1824
Engine/Drivetrain/Suspension Parts for Sale
0
02-17-2013 12:26 PM
Blownz28man
LSX and LTX Parts
6
10-08-2011 07:11 PM
327_TPI_77_Maro
TPI
15
10-27-2006 02:47 PM