Hi i have a 90 camaro 80,000 miles with a 305tbi it is pretty much stock and wanted to know how big of a shot i can put in being safe?
thanks
kevin

 

75-100 is safe, its all about having enough fuel. I have run a 150 shot on a stock TPI 305 with excellent results.

 

i ran a 75 shot on minewith no probs. I had the barry grant nitrous works kit(garbage)stay very far awy from that kit.

 

Thanks i was woundering if i did do a 75-100 shot what will it be like and also how many rpms should i be at before i hit it?
thanks
kevin

 

hehe, it'll be like a big kick in the A$$, Im not a nitrous guy, but I dont think RPMs matter too much, you just want to be full throttle before you hit it.

For instance, go through first, hit second, mash the gas and hit the nos. Just make sure your fuel system is up to par, if you have any doubts please ask.

 

goto the parts for sale section, and buy my TBI nitrous kit.

i used it with a 150 shot for some 50 bottles, the engine has 171k miles on it and i would have sprayed even more but the trans crapped out.

 

Hit it above 2K RPMS and be sure you are at WOT. Use a WOT switch.

 

ive hit it from idle before. no problems here.

 

Get the safety stuff or you could be getting a new engine...
WOT switch, Fuel Pressure Switch (so if fuel is low, cuts off nitrous), rpm window switch (starts @ 2.5k example to 6k)

For every 50 hp, timing needs to be retarded 2 degrees, so for a 100 shot, 4 total... may need a step colder spark plugs, an aftermarket ignition box / coil will help too..

Raf

 

Not a good idea! How big of a shot?

 

150 shot.

and i run 3* adv .

and ive used 87 octane more than once.


dont listen to all the hype.

 

I have the same engine with 150 shot all stock with 4 degrees timing gone thru two bottles in two weeks no probs other than the nitrous runs out too fast

 

I'm assuming 3deg over stock?
What hype? You are trying to force a lot of extra fuel and N2O in at idle. One backfire and you're done.

 

are u guys running wet or dry

 

Wet system

 

wet here also.

3* adv over stock. est unplugged, 3* to the left of the pointer.

no backfires here. done it over 55 bottles.

 

Hey it's your car.

I ran a wet setup.

 

just sayin. dont be all scared of it.

if i had to do it over again it would be the 200 shot for sure.

 

I have a 91 Formula 5.7 TPI. I've installed a wet system w/ a fogger nozzle in front of the throttle blade. My question is where & how has everybody installed the WOT activation switch? Any pics??

 

i couldnt see using more than a 100 shot tops on your 305. Dont do what Reputation7 does unless you can afford a rebuild at any moment you decide to run the spray. If you had a few dyno runs to tune in a 150 shot, then maybe, but i still wouldn't.

3rdBird - Some people may Agree and some might Disagree... I dont use a WOT switch. You should have the arming switch, and then your nitrous button. The arming switch should be your saftey IMHO. You know when your gunna be racing, so flip the arming switch then, and get ready to hit the button. Your gunna be under full throttle the whole time your racing, so it shouldnt be a concern.

 

your an idiot.

1) me, and plenty of others ahve used the 150 shot with no problems, ive got over 50 bottles of 150 shot run through my car. so suckit.

2) with the way you have an arming switch, and a push button, think what happens when you see a cop or something happens where you have to get off the throttle real quick, you have to remember to let off the red button BEFORE you close the throttle. if you had thought that through just a tiny bit more you would realize that every nitrous kit comes with an arm switch AND a wide open throttle switch for a reason. lets see if you can figure out why.

 

He's a novice user to nitrous, and the Last thing he needs is to get the idea to increase his timing and order some 150 shot jets for his 305.
lol, get your post count up a little bit before you start trying to talk smack you little retard. wanting to run a 200 shot on your stock 305 LMAO, wow your a piece of work.
You've probably blown your p.o.s. motor already and are just waiting for someone else to be as stupid as you to try the same thing.
And finally, if you cant remember to let go of the little red button, then maybe you shouldn't be running nitrous in the first place. So how bout you call up your girlfriend, i got something she can suck on ******

 

your really ignorant. why does my postcount mean anything? think about that.
watch this: what works good on a 305 tbi? a 150 shot and 3* adv timing. see how simple that was? care to argue it? look at the proven results of me and others. ive got some 54-55 bottles of 150 shot through my car. how about yourself? ive done everything from spray from the tree at the strip, to highway racing, to stop racing on random city roads. not a problem yet. again, stock car + slicks + 150 shot + 14x3 air filter. cut a 12.8 in the 1/4, and a 8.3 in the 1/8th. how much money did i spend? lets see, 600 for the ntirous kit, 40 bucks for the slicks, 12.99 for the airfilter... and 1600 for the car. that performance cannot be beat. stupid.. right. k. and guess what else. stock tbi fuel pump. ya jackass.

and you obviously dont street race either. what happens when your racin and you see a cop? first instinct is to let go of the gas and hit the breaks. hope to god you remember to let go of that button BEFORE you let go of the gas. which is why the wot switch comes in real handy. i figured you would have picked up on that but obviously not.

my engine runs fine. its just getting a little upgrade. and dont talk like i dont ****in know anything. i do all my own work, blah blah blah, mercedes technician blah blah blah.



http://youtube.com/watch?v=KfbJFGcx0SY
http://s38.photobucket.com/albums/e1...stivamach1.flv
http://s38.photobucket.com/albums/e1...0624041058.flv

 

Is that a T-70? Master power?

Looks nice, what's the combo?

I agree with the pill it till ya kill it mentality. 305's are a dime a dozen anyway, who cares if it grenades? You can do it safely at the 150 level for a while. 60% max is a good N2O multiplier guideline.

Go big or go home.

 

60%?

150shot is almost 100% of the stock 170hp. hell think about ti whats the hp at the rear wheels stock? 140? heh.

yea its a mp t-70. prob gonna go with a 383 s400 setup tho. wanna buy a mpt-70 and bbsdesigns header?










and here is when i pulled the 305 out in prep for the turbo 355 project (now 383 s400 projject. lol)

 

oo excuse me mr. mercedes tech. Am i suppose to be impressed? I bet your getting good at oil changes and lube jobs by now lol. Thats about all id trust you with. Guy, i do all my work too. You really think i care about how much your nitrous setup costs? 12.99 for that Air filter does seem about right though. Expsecially with all that duct tape it has on it around them holes you drilled in it Mr. Mercedes Tech.
Watch this: What works good on a 305 Tbi? 100 shot works good for a starting point, exspecially if your new to nitrous. Later on, go nuts if you feel you can. See how simple that was too mr. Mercedes tech?? You need me to break it down kiddy style for ya? Cause ill sit here all day with you till you can understand it. Stock internals can only hold so much of a hit for so long, before rods go out of round, fry rings, or knock holes in your pistons. Congrats to you if you can get away with it. But dont be telling a guy that its all "Hype" and that you woulda been running a 200 shot on your stock 305 if you could have had the option. Believe it or not mr. Mercedes tech, maybe you should put more research into understanding your motor, and why spraying a 150 shot from one end of the track to the other, wont work for everybodys 305 for 60 plus bottles, because this whole time, ALL ive been hearing from you is.... Blah blah blah, mr. mercedes tech, blah blah blah

 

again. whats proven.

edit: ignorance is bliss.

 

The more convince/safety components you have the better (WOT switch, window switch, fuel pressure safety switch...). Its kinda like saying for every time you push the gas pedal down you have to manually retract it. Kinda a far stretch I know. Sure you can get away with not running any of that, I know Im not going too because to me its just insurance, plus things like the Digital 6 plus have a built in retard too. Its also not the best idea to shift between gears, thats where a window switch is golden. To end it all up, people get flamed and called out for being hack jobs on here for cutting a hole in their trunk to get to the fuel pump, so having a nitrous activation switch that you use manually is more or less going to get criticized. I could understand if this was 1979 and nitrous was an up and coming thing but its 2008, and kits a very well equipped with such safety components.

 

I wouldn't spray below 3200 or so, hate to see you have a nitrous hiccup in that stock intake and blow it back through the hood.

 

again, ive sprayed from idle Thousands of times. slicks at the strip = 1.7 60ft on the 150 shot.

 

Maybe this guy has sprayed a thousand times too but all it takes is that one time....

http://www.youtube.com/watch?v=_CuTfmg2SC8

Or this guy
http://www.youtube.com/watch?v=9bRbd3-Myg0

Or...
http://www.youtube.com/watch?v=wX1-LgDA1Go

and so on

 

WOW that would suck! so is their engine blown or what happened?

 

I've been putting this together for several weeks now. I still don't know where I want to put the purge. Still waiting for a bottle heater.

 

Dude that looks pretty sweet! lol How big of a shot are u using?

 

I've yet to use it. I finished the wiring Saturday, The bottle cost $51 to fill. I'm starting with 75 shot, use that a couple times, then use the 100 shot. My car has 95K miles on it.

 

That will be cool you have to tell me what it feels like when you hit it!

 

170k miles, 150-200 shot.

 

It feels like a sudden burst of speed First time I sprayed a 210 shot on mine in 2nd gear just trying it out, it felt like I was in 1st gear again it pulled so hard. At the time my car was running mid 13's but with the 210 shot, it ran 11.55.

 

best example yet.

my car went 15.7 off the bottle, 12.8 on the 150 shot.

 

Finally tried it out with 75 shot. timing at 0*. I could barely feel it. I'll use it till the bottle runs out, then I'll try the 100 shot.

 

you should be feeling the nitrous come on....even a 75 shot should wake it up considerably, are you sure it's spraying?

 

I had it floored, I tried it twice on the street, I went back home and made sure the micro switch was clicking when I floored it. I should do some modification to the micro switch bracket, the pedal was in the carpet.

 

That almost made me **** my pants...Are there guidelines or advice to follow to keep stuff like that from happening? (To keep form thread jacking just send me a message to my inbox)

 

Maybe a dumb question, but are you guys spraying through the shifting of the auto?

 

Since my foot doesn't leave the floorboard till the finish line (unless something bad happens), yes I'm spraying the whole time.

 

same.

 

took a 225 aprox for my stock 180,000 mile 5.7 bottom end to let go. It broke 5 of 8 pistons and the other 3 had broke rings. I had sprayed a few bottles at that range street racing. Never got a chance to run it on the spray but n/a it was a mid 13 sec bolt on car at 105 mph and on the bottle I could walk off a supra my friend had that made 617 rwhp and ran 128 in the quarter. We called it the mystery shot it had a 71 nos and cant remember the fuel but close to square maybe a 68 to make up for a stock fuel pump needed to get alot of fuel in at the same time so when pressure dropped. Never used it from below 2000 rpm. Just saw too many people backfire on the street and saw many a ls1 plastic manifolds all over the street. I did spray my 94 lt1 with a dry kit right out of the hole plenty of times on a 175 shot. that car picked up from 108 to 130 on the dry kit but had stock cam and afr heads on it at the time. If yo dont want to change the engine any time soon I would stick with a 150 shot and 1 plug colder and if no chip of any kind timing will be fine and it should last for a long time. I ran the dry kit on the lt1 for over 50+ bottles with no retard and a colder plug. the l98 I had stock plugs and timing on it with the smaller shots and over 150 started going to a cold plug and pulling timing. Different motors like different things. Combustion chamber shape, age ,amount of carbon on it all, engine size all play a part on what you can and cant get away with. I always ran a egt gauge to watch my exhaust temps to make sure it wouldnt actually burn a piston. When it finally went it was a hp vrs parts thing not a bad tune on it. Stock pistons and rings just couldnt take it any more. Drove it home but blew out the rear main due to all the blow by. You can play it safe and listen to what the majority of people here are saying or take a chance on a back fire or detonation ruining your day by listening to a few that had good luck with some bad habits. Just my opinion. I dont like changing motors unless I am upgrading, not because I screwed up and it failed and need another stocker to get around.

 

excellent post.

 

I try to make sense most of the time. Thanks for the comment reputation7. By the way a few people over at turbo forums are looking for master power stuff. I know you are looking to go larger now with your project. Thought it might help. We are all here to try to have fun go fast and in the process not hurt our selfs or anyone and hopefully not a motor either but as long is it is the last of them it can be repaired. Remember that when you are testing something for the first time like a big shot or more boost that might cause you to spin at 80+ mph (we all would think that is great) but might slide to another lane or god forbid into a ditch and tear up the whole car. Been street racing and playing for around 18 years and have seen it all. So not matter what you do just use your head and none of the mentioned things should happen. Now lets go thrash some mustangs.