HSW Nitrous Install Completed
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From: Minnesota
Car: 89 IROC-Z
Engine: 370 LSX, LS3 Top End
Transmission: Built T-56
Axle/Gears: 9" Aluminum Center 3.89's
HSW Nitrous Install Completed
Finally got all my **** together. Bottles empty right now.
HSW makes good stuff at great prices. Plenty of people running 300+worth of n2o on their products. This is just a universal wet kit that i changed to my needs.
Starting in the back...I made a custom seat delete box to mount the bottles too out of 5/8 mdf and covered it with matching dove gray carpet. I'm using a filter, and a blow down tube. For those of you wondering what that skinnier bottle is for, it's filled with nitrogen to keep the nitrous pressure constant. Don't have to run a heater that way. You can also see the Mallory 685 ignition i'm running. Has a 2 step, single stage retard, start retard, boost reference if needed, and other ****. It pulls timing when the noids are activated.


Ran the ignition box wires through the center counsel, and the nitrous line through the door jam than into a 3/4" hole in the firewall. The blow down exits right by the factory hole plug. You can see how I'm getting fuel, and how i mounted everything.


Couldn't find a decent spot in the factory intake to mount the nozzle, so i used some silicone and pipe to get it done.

Mounted the microEdge in a pretty visible spot. It controls everything and all the settings can be customized. Flick the arm switch, purge, and drive! it does all the thinking for you. The switches are in the ash tray btw....pretty clean.

Overall it wasn't hard at all to install, just make sure to record all your wiring and keep everything straight.
HSW makes good stuff at great prices. Plenty of people running 300+worth of n2o on their products. This is just a universal wet kit that i changed to my needs.
Starting in the back...I made a custom seat delete box to mount the bottles too out of 5/8 mdf and covered it with matching dove gray carpet. I'm using a filter, and a blow down tube. For those of you wondering what that skinnier bottle is for, it's filled with nitrogen to keep the nitrous pressure constant. Don't have to run a heater that way. You can also see the Mallory 685 ignition i'm running. Has a 2 step, single stage retard, start retard, boost reference if needed, and other ****. It pulls timing when the noids are activated.


Ran the ignition box wires through the center counsel, and the nitrous line through the door jam than into a 3/4" hole in the firewall. The blow down exits right by the factory hole plug. You can see how I'm getting fuel, and how i mounted everything.


Couldn't find a decent spot in the factory intake to mount the nozzle, so i used some silicone and pipe to get it done.

Mounted the microEdge in a pretty visible spot. It controls everything and all the settings can be customized. Flick the arm switch, purge, and drive! it does all the thinking for you. The switches are in the ash tray btw....pretty clean.

Overall it wasn't hard at all to install, just make sure to record all your wiring and keep everything straight.
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From: Prince George, BC, Canada
Car: 89 GTA
Engine: 5.7L Supercharged
Transmission: T-56
Axle/Gears: Moser 9" 3.70
Re: HSW Nitrous Install Completed
Very clean install, nice job!
Car looks great to
Car looks great to
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From: Iowa
Car: 1987 IROC
Engine: 350 vortec
Transmission: TH350 3500 stall
Axle/Gears: 3.73 10 bolt grenade
Re: HSW Nitrous Install Completed
very very nice install, looks similar to mine under the hood, i actually put mine in the maf after the sensor wire
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Joined: Mar 2010
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Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
Re: HSW Nitrous Install Completed
just noticed, it looks like you used teflon tape....
i advise to take the system back apart, and get rid of the tape...get some teflon TFE paste instead...
the tape WILL wreack havoc on your solenoids, and has the capability to lock a solenoid OPEN. use paste !
i advise to take the system back apart, and get rid of the tape...get some teflon TFE paste instead...
the tape WILL wreack havoc on your solenoids, and has the capability to lock a solenoid OPEN. use paste !
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From: Iowa
Car: 1987 IROC
Engine: 350 vortec
Transmission: TH350 3500 stall
Axle/Gears: 3.73 10 bolt grenade
Re: HSW Nitrous Install Completed
personally i've never had any luck with teflon paste, don't know if it was just old or what, but the guys at Nitrous Outlet gave me a little tip to use red loctite instead, works great for me
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Joined: Mar 2010
Posts: 466
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Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
Re: HSW Nitrous Install Completed
and yeah, Dave and the guys over at N20 outlet are good guys, ive been a customer there for YEARS! honestly hadnt heard of the loctite idea, but if dave said it, id beleive in it!
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Thread Starter
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From: Minnesota
Car: 89 IROC-Z
Engine: 370 LSX, LS3 Top End
Transmission: Built T-56
Axle/Gears: 9" Aluminum Center 3.89's
Re: HSW Nitrous Install Completed
Nice setup 89fbird!
lol i knew someone would point out the tape. I started it 3 threads in from the end, so it should be just fine. The only reason i used the tape was because i couldn't get the angled an-npt fittings where i needed them with red locktite, with the tape i could get them right where i needed them. I actually stripped the 45* fuel fitting trying to get it pointed up and left
good thing i had a few extras. IDK i might go back and use the gel on all the straight fittings.
lol i knew someone would point out the tape. I started it 3 threads in from the end, so it should be just fine. The only reason i used the tape was because i couldn't get the angled an-npt fittings where i needed them with red locktite, with the tape i could get them right where i needed them. I actually stripped the 45* fuel fitting trying to get it pointed up and left
good thing i had a few extras. IDK i might go back and use the gel on all the straight fittings. Re: HSW Nitrous Install Completed
When I put together my Aeromotive VAFPR my racing buddy said I should not have used teflon paste. So I disassembled and used tef tape. Now I installled my NOS name brand system and they state use paste. So on assembly I pulled the tape and used all paste. I can see how a sliver of tape can wreak havoc on the fuel side and you run lean as a result. So I am back to paste. Also at big box store I found something that resembled tef paste but was non drying sealant and gray in color. It is not teflon paste. I notice when tef paste dries it seems to give off dry particles. comments?
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Joined: Mar 2010
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Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
Re: HSW Nitrous Install Completed
When I put together my Aeromotive VAFPR my racing buddy said I should not have used teflon paste. So I disassembled and used tef tape. Now I installled my NOS name brand system and they state use paste. So on assembly I pulled the tape and used all paste. I can see how a sliver of tape can wreak havoc on the fuel side and you run lean as a result. So I am back to paste. Also at big box store I found something that resembled tef paste but was non drying sealant and gray in color. It is not teflon paste. I notice when tef paste dries it seems to give off dry particles. comments?
the grey stuff is for plumbing applications in household stuff i think..
i could care less if the fuel solenoid gets stuck open...its always the nitrous solenoid i worry about....
having a N20 noid continuing to spray is BADDDDDD news.
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: HSW Nitrous Install Completed
Paste or not, an installer needs to be careful about contamination.
http://www.rectorseal.com/chrt.htm
EDIT: The 3M brand white stuff I have has TFE in it and works well.
Last edited by junkcltr; Jun 28, 2010 at 03:49 PM.
Re: HSW Nitrous Install Completed
I was refering to fuel solenoid stuck closed. NOS brand solenoids are normally closed. the solenoid pulls open. So I presume catastrophe can result from fuel stuck closed or N20 noid stuck open.
Thread Starter
Supreme Member
iTrader: (7)
Joined: Jun 2008
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From: Minnesota
Car: 89 IROC-Z
Engine: 370 LSX, LS3 Top End
Transmission: Built T-56
Axle/Gears: 9" Aluminum Center 3.89's
Re: HSW Nitrous Install Completed
Damnit idk what to do now...
On Probation
Joined: Mar 2010
Posts: 466
Likes: 0
Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
Thread Starter
Supreme Member
iTrader: (7)
Joined: Jun 2008
Posts: 1,468
Likes: 0
From: Minnesota
Car: 89 IROC-Z
Engine: 370 LSX, LS3 Top End
Transmission: Built T-56
Axle/Gears: 9" Aluminum Center 3.89's
Re: HSW Nitrous Install Completed
I got red loctite gel. Guess i'll be taking it apart and hope i can get **** to line up lol
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