Any opinions on this nitrous kit?

[TARZAN]

Nitrous Supply: Nitrous Systems by Application, General Motors



Considering one for the ol GN....thanks

-Will

 

[galoush]

Looks cool but i think running all those lines might be a pain , i run an NX single nozzle EFI kit which workes well , i think one of the big nitrous guys is currently selling a Nitrous set up in the parts section you might want to check it out .

 

[yullose]

The kit pictured is for a roots type blower.
Not a GN kit.

The kit is probably the same one NOS has been selling since day one. Part# 05301NOS

http://www.holley.com/data/Products/Technical/A5116-SNOS.pdf

Honestly, I think it would be cheaper to buy a NOS Cheater kit, sell the carb plate and then buy a fogger nozzle for $35 and a pair of jets (42/46).
That way you get better solenoids, bigger -06 feed line, and braided -03 hoses to the nozzle instead of the steel 3/16" hard lines...

Here' pics of two kits I threw together from Cheater systems...

The top pic is my '86 T-type, the bottom pic is my '87 GN.

 

[TARZAN]

Thanks....I have a spare single nossle kit sitting around, I just liked the idea of something that didn't have to spray through the TB...

-Will

 

[wilkinshc]

Nitrous Supply: Nitrous Systems by Application, General Motors



Considering one for the ol GN....thanks

-Will

Will,

What is your goal?

Things to know:

75hp shot will increase boost about 2psi, on a stock gn it will drop 1/4 around a full second.

125hp shot will increase boost about 4psi, on a stock gn it will drop 1/4 around 1.5 - 2 seconds.

Precautions I would do:
1. knock gage- knock is bad on a gn but VERY bad on a nitrous gn.
2. fuel pressure gauge- you need to make sure your fuel pump is keeping up with the demand or you will get knock which will kill you motor.
3. 75hp shot you need stock timing chip ( no strip chip unless it's a nitrous chip). With 150 you need nitrous chip or stock timing chip and race gas.
4. adjust boost for the jump in psi for selected nitous hp level.
5. with 75hp uses stock spark plugs or one colder. with 150 use 2 colder.
6. make sure engine is in good tune- new plugs, spring cleaning (new fuel filter), and tranny has clean fluid and filter as it will take alot of torque.
7. When racing you will probably need to hit the nitrous after you start rolling if not using slicks as you proably lose traction from a dead stop.
8. Using NOS systems I have notice they fuel jet is on the fat side so if you get the car tuned in you will find more hp in leaning out the gas jet. On one gn the chip was on the rich side and once the nitrous was added we started getting a back fire on intake. At first we thought it was a leaning problem so we added more fuel, no help. We call NOS and they thought it was leaning and added more fuel. Ended up being to rich, we leaned it out and wow. She ran great. That was back in 87 before all the great monitor tools we have now. In short NOS system tends to be on the rich side. So you have good fuel pressure with factory jet and you get intake pops you are probable rich not lean.

I have been partial to NOS systems, they have been very reliable. We have a guy here in New Mexico that has lightened his car as much as possible and has a stock long block, stock turbo, stock tranny, and all with 130,000 miles with my chip and a 75hp chip that runs 11.4's.

Hope that helps
Chuck

 

[wilkinshc]

Thanks....I have a spare single nossle kit sitting around, I just liked the idea of something that didn't have to spray through the TB...

-Will

All the system with the exception on the NOS 6 pack spray thru the throttle body. They work just fine. Two advantages to the 6 pack is the cool factor, and that you can richen the back 2 cylinders by running a bigger jet in the back 2 foggers. The disadvantage is the smallest hp rating you can go is 75hp (small jets available).

Chuck