I am just starting to install a Compucar nitrous kit on my 305 TPI. I purchased the kit used so I dont have any instructions.

Mostly I am just starting to figure things out, and cant see how to mount the micro-switch to activate the system. Does anyone have a picture of how to mount the switch?

------------------
1987 Chevy Camaro IROC-Z. 305 TPI. 700R4
14.6 secs @ 93 MPH.
2.14 sixty foot.
Nitrous soon! :-)
http://www.camaro-firebird.org
Camaro and Firebird pages in Sydney, Australia.

 

The instructions wouldn't help much, they kinda just say "mount the switch so it clicks on at full throttle". I mounted mine in the first hole on the bracket and placed it on with the bottom driver side throttle body bolt... so it's almost sideways. Kinda just play around with different ways to mount it until something works so that when you are at full throttle, the linkage turns on the switch. Have a friend floor it (w/ engine off) and check it to see if it clicks on as a final test. It took me about 45 minutes to get it to mount right. If you got it used then someone already probably bent the bracket correctly for you so don't bend anything back and it might be easier than you think.

------------------
89GTA5spd – Engine: Stock G92 LB9 w/AFPR, JET Fan Switch, Air Foil, Ported Plenum, T.B Coolant by-pass, 180 T-Stat, Flowmaster 3” Cat-back – Transmission: Stock WC T-5, Suspension: Alston SFC’s, Hotchkis STB, Eibach Pro-Kit, 255 BFG Comp T/A’s – Power Adder: NOS TPI #5151 Kit-- Interior/Stereo: Autometer Phantom guages, Sony Deck, RF Subs, Orion amp – Times: (Stock) 1/8 9.78 sec w/ 2.42 sec 60ft, no times w/ S/C or N20 (yet.. )

[This message has been edited by 89GTA5spd (edited May 24, 2001).]

 

Jim,

Use the upper left-hand throttle body bolt (as viewed from the front of the engine) to mount the bracket I made. There is a tab on the throttle body shaft below the TPS. The switch itself bolts onto the bracket I made where it is thrown by the tab on the shaft. Hope this helps.

------------------
Willie

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
Former Paxton (6-psig): 12.57 @ 111 mph.
Former Paxton (6-psig) & former 50-hp nitrous: 12.04 @ 114 mph.
Current ATI D1SC (Initially 10-psig): Projecting high 11's.
Future ATI D1SC (15-psig): Gotta catch them pesky 26-psig boosted TTA's!!

http://willie.camaro-firebird.org/

1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.

 

OK, thanks Willie. I was trying to mock it up to the right side of the throttle body today and I couldn't figure it out!

I am hoping to get the nitrous installed and tested before the 6th of June, and race at the track on the 6th. I am planning to start the install on the 2nd but I am just trying to figure everything out at the moment.

 

No wonder you couldn't figure it out. I found that it's a much cleaner installation to mount the switch on the passenger side because it is difficult to see it. On the driver's side, it is VERY obvious.

Keep us all informed how it goes. Please e-mail me with the jet sizes I included (cause I can't remember) and I'll explain how to use the spreadsheet to determine what sizes to use.

Willie

 

Thanks Willie, you have mail!

------------------
1987 Chevy Camaro IROC-Z. 305 TPI. 700R4
14.6 secs @ 93 MPH.
2.14 sixty foot.
Nitrous soon! :-)
http://www.camaro-firebird.org
Camaro and Firebird pages in Sydney, Australia.