Question about my HSR?
Thread Starter
Member
Joined: Sep 2009
Posts: 121
Likes: 0
From: Green Bay WI
Car: 85 iroc
Engine: 383
Transmission: 700r4
Axle/Gears: 3.42
Question about my HSR?
I thought that the stock TPI vacuum fittings would work on the HSR. What are guys using, and where can I buy? 
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Question about my HSR?
Can get fittings from any auto supply place.
2 larger holes are 3/8" NPT ( one should be used for brake vac ) and IIRC 2 smaller are 1/8" NPT
2 larger holes are 3/8" NPT ( one should be used for brake vac ) and IIRC 2 smaller are 1/8" NPT
Supreme Member
iTrader: (4)
Joined: Feb 2000
Posts: 2,850
Likes: 0
From: Winston salem, NC
Car: 1987 1SICIROC.....1999 TransAm
Engine: 385 HSR.....LS1
Transmission: 700R4 with Midwest 3400 2.4str...M6
Axle/Gears: SLP Zexel Posi unit 3.42's...3.73's
Re: Question about my HSR?
or you can get them at Lowes or home depot.......they may be cheaper there. Also your gonna plug 1 or 2 of them, i cant remember. You can get them at the same place.
Moderator
Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Re: Question about my HSR?
A ton of information here: https://www.thirdgen.org/forums/alte...ealth-ram.html
I used all 4 vacuum lines on the back of mine. AFPR, brake booster, IAT, and I think the last one was for the cruise control.
I used all 4 vacuum lines on the back of mine. AFPR, brake booster, IAT, and I think the last one was for the cruise control.
Supreme Member
Joined: Nov 2001
Posts: 2,266
Likes: 37
From: Canada,Ont
Car: 1987 TransAm Ttop
Engine: 2005 LQ4
Transmission: Ls1 T56
Axle/Gears: 3:54
Re: Question about my HSR?
Thats the exact same thread I used to find out what fittings I needed to run my vacuum lines today lol.I got everything hooked up except for the vacuum lines that are coming out from the hvac.I dont know how I should hook them up or if there was a check valve inbetween them.Anyone got a diagram for that?
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Question about my HSR?
Line should run
Intake - check valve - then from valve -rear port to HVAC line / side port to vac ball T'ing off to the cruise on the way.
If you don't run the check valve, your vent position will change every time you accel because the vents will return to the default position with no/ low vac
Thread
Thread Starter
Forum
Replies
Last Post
355tpipickup
Alternative Port EFI Intakes
3
Aug 29, 2015 10:47 PM
