ShamelessCookie

iTrader: (4)

I have a cam-only 2000 Z28 with 138k miles on the clock.

I was thinking of doing a head swap, but now I'm thinking nitrous.

I already have a bunch of stuff to install:

• 42lb injectors
• Pro Products 96mm Typhoon Intake
• Pro Products 101mm Throttle Body
• Fast Toys 104mm Lid
• TSP 100mm MAF

Now I'm contemplating a 100 dry shot via Halo Kit & NANO 3000.

The car currently makes 366whp (Mustang). After inductions mods above, I expect to make around 380whp. I'm pretty sure a 100 shot w/ NANO would put me around 470-480whp.

Does this sound too risky for a high mileage stock block?
I have always kept the revs below 6400 and plan to keep it that way.

Thanks in advance.

slow2500

Many guys spray high millage motors and have no issues. These are LS motors not ford 4.6s hahahah.

got-a-ls1

iTrader: (12)

3 words......


LET IT EAT!!!!!!!!!!!!!!

got-a-ls1

iTrader: (12)

but seriously if your motor has no problems as of right now and you use all safety precautions such as reducing timing, window switch and wideband / plug tuning you should be fine..

MillerTime85

iTrader: (8)

hook it up and spray it.If your really worried do a compression check first before spraying and get all safety equip.

99_LS1_WS6

iTrader: (5)

Depending upon the size shot, it might also be a good idea to get a set of nitrous plugs.

atrain59

iTrader: (31)

My camaro has 170,000 miles on it and I spray 125 wet shot with no problem and it loves it. Just buy the right plugs and all the saftey stuff and you should be fine. The highest I would go is a 150 anything above that your asking for trouble.

CTSprojectR

x2, i only spray a 100 shot, got it put on the other day and i love it, 176k miles

slow2500

When spraying anything more then 50 hp, you should put a step colder plug. It is cheap massive amount of safety.

Firehawk441

iTrader: (41)

Do a leakdown and compression test on the engine. If it passes and it doesn't burn oil, then rock on.

Trythis1

+1

I would go pick up a set of NGK TR6 plugs. They are one heat range colder than stock.

ryarbrough

iTrader: (18)

You would also be using the wrong plug. With nitrous, he should be using a br6ef or br7ef...

Trythis1

Why on the sticky at the top of THIS forum does it say to use a TR6? I was told that by a top tuner in NC and read it on the forum here.....

Trythis1

Here's the sticky:

https://ls1tech.com/forums/nitrous-o...o-read-me.html

And here is the section I'm referring to:

LS1 Stock and AFR
Thread – 14mm
Reach - .708”
Socket – 5/8 hex
Seat - Taper
Stock Heat Range: 5
Gap: .060
Plug: NGK TR55 (stock number 3951); NGK TR55IX (stock number 7164); Autolite 764; Denso IT-16 (stock number 5325)

Nitrous (one step colder)
Heat Range: 6
Gap: .035 - .038
Plug: NGK TR6 (stock number 4177); NGK TR6IX (stock number 3689); Autolite 103; Denso IT-20 (stock number 5326)

Nitrous (two steps colder)
Heat Range: 7
Gap: Consult
Plug: NGK BR7EF (stock number 3346); NGK TR7IX (stock number 3690); Autolite AR94; Denso IT22 (stock number 5327)

Nitrous (two and a half steps colder)
Heat Range: 8
Gap: Consult
Plug: NGK B8EFS 1049

ryarbrough

iTrader: (18)

I know... That's wrong, I/we just haven't had a chance to fix it. Starting on it now

GT_EATR

iTrader: (1)

I have a 137K on my clock and i have been shooting up with a 150hp wet kit for about a year now w/ no problems..It loves the steroids..

Noyzee

iTrader: (37)

spray it

KFZ)^

iTrader: (1)

Spray

PlowBoy11

I am running a 100 dry shot with 274,000 on the od it ran a 12.43 at a 113 leaving the line at 1500 rpms

nvrliftwhenushft

i have no hard facts to post to prove it but in the nos tuning guide it says up to a 100 shot of dry that on gm ls applications you are fine with stock timing and fuel but may want to drop in the heat range as a big safety precautiion.