2007chevy5.3l

iTrader: (21)

Do NOT use tr6s. They are not for nitrous.

Other than that, spot on tune I have seen guys over on tech hit stock bottom ends with 250-300 shot. Defiantly not on pump gas tho.

03regcab sierra

iTrader: (7)

Ive used tr6s in the past for nitrous. My buddy runs em in his car eith a 100 shot seems to work fin. But plugs are cheap and easy to replace so i will just get a set of br7ef plugs

Neal@NitrousOutlet

If you want to know what the motor will hold it all depends on the fuel system on the car, what kind of car it is going in, what kind of power the car is making now.

I am assuming that is going in your LS swapped truck. The motor with proper fueling can be easily hit with 150. If it is you truck in your signature, what kind of power is it making right now?? Also have you done any fuel system upgrades??

Also on the discussion of plugs i would definitely recommend br7 over tr6. The tr6 being a projected plug runs the risk of burning the strap off. TR7s would be a better insurance.

03regcab sierra

iTrader: (7)

Yes it is the truck in my sig. I already upgraded the fuel pump to a walbro 255 and i have 42# injectors. Truck is makin about 400 rwhp give or take. (Havent dynoed yet )

kyls1silverado

id stay under 200 i got a 125 shot on mine and it seem to be doin fine just make sure the timing is pulled and run colder plug tr6 is a good plug for 150 and under

Neal@NitrousOutlet

awesome. With the 255 you should be able to get around 500-550 whp on the nitrous. If you want to play it safe i would do a hot wire kit to the fuel pump to be able to get you into the 600-650 whp range. If you are making around 400 WHP you should be able to hit it with a 150. I would just make sure that your fuel pressure is not dropping and that your fuel pump duty cycle is not to high. If it is the hot wire will help out.

TR series are just not a good idea with nitrous. Stay with BR series like the BR7 stocking number 3346. Its just added safety over the TR series and should be the same price.

UnVmy5.3

i spray a 150 on my bone stock 210,000 miles on my 5.3 and it takes it like a champ also using tr6 plugs

Neal@NitrousOutlet

BR series just give more room for error. Not that the TR will not work but the BR will give more room for mistakes

03regcab sierra

iTrader: (7)

All the local parts stores have to order the br7 and it takes a couple days. If they come in before friday i will change plugs if not i will try the tr6 with a small shot and wait till i get the new ones in

UnVmy5.3

in that case ill have to try the br's