Alternative Port EFI Intakes This board is for tech discussions and questions about aftermarket port EFI such as the HSR, MR, SR, BBK, FIRST, etc.

some ?'s after the HSR swap

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Old Apr 12, 2010 | 11:59 AM
  #1  
TKR 88 GTA's Avatar
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From: Aurora CO
Car: 1988 GTA Trans Am
Engine: HSR 350
Transmission: 700R4
Axle/Gears: 3.27
some ?'s after the HSR swap

hey guys i just swaped to the HSR this past weekend. i had problems trying to get all the sensors to fit into the new manifold, so i had to go to the hardware store alot to make everything fit right. did u guys have the same problems?? and what did u guys do with that vacuum line that goes to the EGR, did u jus plug it or what do i do with it?? and how did u mount the ignition coil since there isnt a spot on the manifold for it no more? and last question did u have to plug any of those holes on the upper manifold in the back or did they all get used?? cuz i have 3 out of 4 used right now..
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Old Apr 12, 2010 | 06:06 PM
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bonesbrakr's Avatar
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Re: some ?'s after the HSR swap

Plug the EGR vacuum port on the throttle body. Mounting the coil is a preference choice but I mounted mine on the firewall lip after drilling 2 new holes. Vacuum ports I used are..... topmost for the MAP sensor, next for the vacuum line for the heat and vacuum canister, next for the brake booster, and finally the bottom most for the IAT sensor and of course the one underneath in the middle for the PCV valve.
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Old Apr 12, 2010 | 06:07 PM
  #3  
86camaroZ's Avatar
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Joined: Mar 2007
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From: MI
Car: 86 iroc
Engine: 350 vortec HSR
Transmission: 700R4
Axle/Gears: 370
Re: some ?'s after the HSR swap

I have 2 out of 4 holes plugged in the back. Dunno if i'm missing something? But everything seems fine...

I have an extra coil mount for sale in my thread if you need it, just bolt it down and go.
https://www.thirdgen.org/forums/engi...ml#post4507233

all of my sensors pretty much found a drilled and tapped hole...dunno if they are the correct hole but they all found a home lol

Last edited by 86camaroZ; Apr 12, 2010 at 06:14 PM.
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Old Apr 13, 2010 | 11:49 AM
  #4  
TKR 88 GTA's Avatar
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From: Aurora CO
Car: 1988 GTA Trans Am
Engine: HSR 350
Transmission: 700R4
Axle/Gears: 3.27
Re: some ?'s after the HSR swap

Originally Posted by bonesbrakr
Plug the EGR vacuum port on the throttle body. Mounting the coil is a preference choice but I mounted mine on the firewall lip after drilling 2 new holes. Vacuum ports I used are..... topmost for the MAP sensor, next for the vacuum line for the heat and vacuum canister, next for the brake booster, and finally the bottom most for the IAT sensor and of course the one underneath in the middle for the PCV valve.
well on mine it said to plug the regulator into a vacuum source on the throttle body so i used up on of those for that one i think. and then i got the one for the brake booster. and im not sure which one my friend plugged in underneath the intake but it goes to the ignition coil.. lol but underneath the distributor theres a a couple vacuum lines and ya one goes to the throttle body and the other goes to one of the lines from the evap canister i believe but there is still one just hanging there that was suppose to straight into the EGR right???
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