Nitrous question

[brandon6976]

Hey guys just want an opinion on possible idea.

If I had forged Pistons and valves what shot of nitrous do you think the engine could handle safely ??

People seem to run 75 as it is which seems to be a border line (Some people getting burned parts with 75). So I'm assuming 75 for sure. 100 possible or just plain too much ?

[S|Lv3rBu||et]

IF you had lower compression pistons you could probably handle a 100 shot.

[brandon6976]

well the stock on the Gt-S is 11.5:1

So i'm just wondering if I replaced them with forged 11.5:1 would it be alright ??

lower compression is always an option but then the car doesn't have as much power when its not on the juice ..

So to me it would depend on how much you have to lower it and what it puts the hp to by doing so

[hi ho silver]

hmm.. i would think you could do 100 safely on direct port. but thats just my opinion....

are you gonna get rods too?

[brandon6976]

lol love the sig pic ..

umm I could get rods I suppose. I just hear the problem with nitrous is that it burns the valves and piston but if I needed rods I'd get em :D

Anyone have any opinions or experience on the matter ?

[Calsoldier]

You can get awway with spraying a 100shot a few times, but the valves will start to burn off. I'm sure its a lot safer to use nitrous with forged pistons and rods, but lowering the compression doesn't seem reasonable to me.

Oleg

[Quick_GT-S]

With stock compression, you would need to use higher octaine gas.

[brandon6976]

ok but what if the valves are replaced ?? I don't know if they come forged but I hear you can get titanium valves.

Or is it just too much for it

[brandon6976]

i use 94 octane already .. is that high enough ?? not enough ??

[Calsoldier]

Why are you going to spend that much on a nitrous setup? Might as well get a turbo set up if you have the money, or an SC.

Oleg

[brandon6976]

umm well I already have nitrous .. if the car with some basic mods is like ~180whp (intake, exhaust etc etc) and I have a 100shot that would be 280hp.

Turbo's are like 240-250, also cost like 5k (I have the gt-s so XS is the only real player at the moment)

if a build up the engine I already have nitrous so it would simply be an engine build up.

I'm just looking at my options. Also i rarely go "racing" or whatever so nitrous is nice cause its just power when I want it rather than all the time.

[Quick_GT-S]

Originally posted by brandon6976
i use 94 octane already .. is that high enough ?? not enough ??

94 octane maybe enough, just don't spray below 4k rpm. For an awsume nitrous setup, get a NX maximizer.

http://www.mrnitrous.com/maximizer.htm

I plan on getting one when I have the extra cash. With this you can run 100 shot with stock internals, safe and effective.

[marc]

Well, you're probably going to want to move to a direct port setup. I really don't know how much the Celica can take because nobody seems to be willing to blast their engine with too much nitrous.

Obviously, you're going to want to spray after 3000rpm

Forged rods and pistons are going to be able to take the beating, but I don't know what you can do to the valves. I've burned out my valve gaskets WITHOUT nitrous (thank you warranty), so they're definately going to take a beating with nitrous. Maybe a titanium valvetrain and beefing up the entire top end would help?

Like everyone where seems to be saying, it just seems insane to set up your car with all that stuff for nitrous when you can go with a turbocharger or a supercharger. If you don't like all that power on hand run a boost controller with two settings, low for daily driving and a high boost for when you wanna go fast.

I think Stafford's GT-S kit will have that option with alcohol injection, so you can turn up the boost when it's need . . . but nobody's seen any Stafford dynos yet (HINT HINT!).

Regardless, I wouldn't run past a wet 50 shot on the engine, for more, definately go with direct port, and do some experimenting with the engine tolerances (you've got a 2001, you should still be on warranty, just remove the nitrous if you hurt something before you go in).

Let the rest of us know how it goes!

[hybridcelica]

Originally posted by brandon6976
Hey guys just want an opinion on possible idea.

If I had forged Pistons and valves what shot of nitrous do you think the engine could handle safely ??

People seem to run 75 as it is which seems to be a border line (Some people getting burned parts with 75). So I'm assuming 75 for sure. 100 possible or just plain too much ?
this is a slight alternative to what you have in mind if you want to squeeze a big shot on the celica. you said that you have forged pistons,1)get the pistons ceramic coated,since the head is off get the chamber and valves done as well(it should be fairly cheap if you are doing them at the same time)2)run a separate small pump and a small fuel cell with regulator to supply the fuel for the system.in the fuel cell you would put c12 or c16 or a mixture of ethanol and gas.(this will clamp down on any detonation that might surface, and your chances of sagging down the fuel supplied to the injectors by taking a chunk out of the line when squeezing a bigger shot will be eliminated thus it will be hard for the motor to run lean since its fuel enrichment has not changed. by squeezing a higher anti knock fuel with the bigger shot it will prevent the extra"o2" from detonating under the higher than normal cylinder preasures!thats where coating the pistons and cylinder/valves come in! so they can take the extra heat. and 3) do it in two stages(not a must you can go direct port as well)nx has the sx2 nozzle you can squeeze two separate shots from one nozzle,(i usually do one stage at the throttle switch,and the other in a t shift,the bigger in the t shift and wired so it cant be activated unless the first stage is engaged(which means you have to be at wide open throttle!!)if you need any tips on building the extra cell(it doesnt have to be big,it goes in the same open area thats left after you install a cai.and the guage is on the tank so you can see the fuel preasure when you raise the hood.with this set up you can tune the mixture easier if you want it more rich by increasing fuel preasure.) let me know,it doesnt have to be big,the fuel in the pump and line plus a 1/4 gallon or more in the cell is enough for quite a few races! you just have to remember to keep it filled(besides alot of fuel doesnt actually get used when spraying and too big a tank would take up space and add weight!i first did this 4 years ago with a friend who had a big money bet with an identical mustang bone stock, the only thing both had was nitro so we wanted to find a way to drastically increase the shot without blowing it and losing the money! we did the fuel cell with pump and regulator,and two stages no internals touched(we won,but later found out the other guy cheated anyway cause he had a nitrous cam installed!he had 250 shot and blew off the back section of the upper intake we had 150 + 200)

[brandon6976]

sorry I just wanted to clean up to make it more readable

this is a slight alternative to what you have in mind if you want to squeeze a big shot on the celica. you said that you have forged pistons,

1)get the pistons ceramic coated,since the head is off get the chamber and valves done as well(it should be fairly cheap if you are doing them at the same time)

2)run a separate small pump and a small fuel cell with regulator to supply the fuel for the system.in the fuel cell you would put c12 or c16 or a mixture of ethanol and gas.(this will clamp down on any detonation that might surface, and your chances of sagging down the fuel supplied to the injectors by taking a chunk out of the line when squeezing a bigger shot will be eliminated thus it will be hard for the motor to run lean since its fuel enrichment has not changed. by squeezing a higher anti knock fuel with the bigger shot it will prevent the extra"o2" from detonating under the higher than normal cylinder preasures!thats where coating the pistons and cylinder/valves come in! so they can take the extra heat. and

3) do it in two stages(not a must you can go direct port as well)nx has the sx2 nozzle you can squeeze two separate shots from one nozzle,(i usually do one stage at the throttle switch,and the other in a t shift,the bigger in the t shift and wired so it cant be activated unless the first stage is engaged(which means you have to be at wide open throttle!!)if you need any tips on building the extra cell(it doesnt have to be big,it goes in the same open area thats left after you install a cai.and the guage is on the tank so you can see the fuel preasure when you raise the hood.with this set up you can tune the mixture easier if you want it more rich by increasing fuel preasure.) let me know,it doesnt have to be big,the fuel in the pump and line plus a 1/4 gallon or more in the cell is enough for quite a few races! you just have to remember to keep it filled(besides alot of fuel doesnt actually get used when spraying and too big a tank would take up space and add weight!i first did this 4 years ago with a friend who had a big money bet with an identical mustang bone stock, the only thing both had was nitro so we wanted to find a way to drastically increase the shot without blowing it and losing the money! we did the fuel cell with pump and regulator,and two stages no internals touched(we won,but later found out the other guy cheated anyway cause he had a nitrous cam installed!he had 250 shot and blew off the back section of the upper intake we had 150 + 200)

[brandon6976]

just to be clear I don't have forged piston. I was just curious. I would like to stay NA and have the shot available when I want that extra get up and go.

The NX maximizer sounds good. can someone explain in a little on how it works ?? I can't find a good description on nitrousexpress.com

[brandon6976]

I should mention that from What I understand is that is lets you slowly release your nitrous settings so its like at 4,000rpm is 35 shot 6,000rpm its 50 then at 7000 its 75shot or something to that degree.

Am I correct ?? Also is there any more hardware needed ?? how can it control the shot ?? do you need better solenoids??

[Quick_GT-S]

The NX maximizer works great with the NX brand solenoids. Some other kits have smaller solenoids that might not hold up to the pulsing action. You don't need any other hardware to run with the maximizer.

I'm looking at purchasing the maximizer next month, but this is an example of how I plan on setting it up: 1st gear 10 shot at 3k to 40 shot at 8k, 2nd gear 40 shot at 3k to 100 shot at 8k, and 3 gear the same. This will change based on traction.

As the rpms goes up, the nitrous flow needs to increase. The maximizer will adjust the amount of fuel and nitrous based on rpm and what gear. It also can connect to your O2 sensor to keep the A/F under control. Remember 50 shot at 3500rpm is the same torque increase (load on the engine and trany) as 100 shot at 7k rpm.