ls6firebird

i was wondering if anyone is running an ms4 with spray? im looking to spray a 125 wet shot. pretty basic car, mods in sig. also, would really appreciate any tips/advice. thanks

Chris@NitroDaves

The Factory fuel pumps will hold around the 460RWHP range in most cases and with the cam i'd suggest you upgrade the fuel pump and the best/ most popular way of doing so would be to use a Racetronix pump/ harness. Which is basically a plug n play setup. Other than that you will need to change to a colder plug and i'd sugget the NGK BR7EF ( Stock# 3346 ) and gap them around 33-34.

Regaurdless of what you decide to do i'd suggest putting the car on the dyno to check what the AFR is doing.

ls6firebird

thanks for the info. i definately plan on the fuel pump regardless. but im hopin that 460 mark is realistic haha. im gonna have it put on a dyno in the next few weeks, then again after i get the nitrous. i'll be givin you guys a call as soon as i sell my trailer and order a 9 inch

KingKiller

iTrader: (7)

I think it's a sick idea. Make sure it's tuned for the shot and you have a fuel pressure safety switch. Should make some serious power, enough to take down all but the fastest cars out there.

ls6firebird

good deal....thats what i want to hear!

ls1curt

iTrader: (31)

i will probably spraying a 100 shot on mine as soon as it warms up and i get it tuned

Nsty98LS1

iTrader: (11)

while i dont have any track times with the nitrous, i can say that the few times i sprayed my MS4 its pretty nasty. i spray mine with a 150 shot & it would spin well into 3rd gear on drag radials

w3s1c0a5t

iTrader: (3)

A local guy has a Cam specced very close to the ms4 and he sprays a 150... From what it seems that big cam and stall eat it up. Good luck on the car.

Everyone else pretty much summed it up.

Fuel pump
br7ef plugs

But, DO NOT USE THE DYNO for afr. Its ok it get an idea. BUT READ YOUR PLUGS FOR AFR TUNING. Their is no replacement no other way. Period.

Nick@HSW

iTrader: (4)

Plenty of people spraying that cam with great results. I'd run a heat range 6 plug...I think the 7's are too cold for your setup since you've made no increases in compression. I'd also start looking into a pump as well.

Nick

ls6firebird

thanks for all the info guys. sounds like i lucked out. i bought the cam with no intentions of spraying. but then on a whim decided why the hell wouldnt i?

jdaniel

iTrader: (1)

BR7EFs all the way. DO NOT use TR6s!!! Have fun with the spray!

01 Trans-Am WS6

iTrader: (5)

The car will be sooo mean after you spray it. 460 if anything is wayyyy under what you will dyno. My car MS3 cam only put down 407RWHP, with spray you will easily be over 500WHP.

firefighter813x

iTrader: (6)

The Racetronix kit from Nitro Dave's was easy to install and a nice product. With a 230 cam and a stalled A4 I made 480 unlocked on a 150 hit. We had to add extra fuel by using the jets and only achieved 120rwhp on the advertised NX 150. This was with a 3200 Vigilante converter and built A4. We used Autolite 103's.

blackls1ta00

iTrader: (27)

that car will be totally different with a 150 hit,do it and dont look back.when i added 100 wet shot on top of my 383 im like wow this is awesome.now im going to 150-175 shot now.

ls6firebird

yea now that ive been thinkin about it...i may have a tough decision between a 125 and 150. at first i was thinkin between a 100 and 125. i figured at 100, whats just 25 more?? now at 125 im thinkin what about 150. if i keep that **** up im gonna have to be thinkin about another motor. i have no self control haha

jdaniel

iTrader: (1)

I tell everyone to start with a 150 shot of your making 450 or less on motor. Just knock out the fuel mods and don't look back.

JRracing

iTrader: (35)

I would do 100 then the 150 when you get bored of that..

ls1curt

iTrader: (31)

start smaller and then move up when you get sick of it.