Nitrous on a 5S Options

[94celicadude]

Hello all,

Its been a while since I have posted anything up... got both of my girls running like dreams and of course the projects just keep coming on.

I finally got the 7A sorted out, basically ended up rebuilding it a second time because of crappy piston rings from the shop that put the short block together... and after two bolts fell out of my shift forks, i finally got her back up and driving again... now just have to put the new S-AFCII back in it after the original was stolen... oh and get a tune.... damn i guess i really had some **** happen to me lol

Oh well anyways... this topic is about my GT Hatch.


Over the summer I ordered a set of Webcams 294 regrinds... installed them and I absolutely LOVE them! I really should have made a post about the installation and the results after tuning.

Basically... the cams bumped me up to 132 WHP.. and i forgot the torque #... sorry I would post the dyno chart but I am in Spain studying abroad and dont have it with me.

Well to get to my real question, I bought a Zex Wet Nitrous kit for my car.. and have not yet installed it considering my motor has 245K miles on it. So i am going to rebuild the motor, do some NA mods to it as the same time... Extrude Hone and such... and then i would love to hook up this nitrous kit.

My questions are... has anybody ever put a nitrous kit on the 5S?

Can the 5S take a 75 wet shot? (After a rebuild of course)

Has anybody had any bad experiences putting nitrous on the 5S?


I hope to get some feedback, positive or negative. I am doing this in order to make sure that i dont cost myself a second motor rebuild againlol

Hope to hear from all of you.

Thanks
Matt

PS I figured id post up a few pics of the car as she sits now... just for fun





This post has been edited by 94celicadude: Nov 9, 2009 - 11:17 AM

[Mstoochn]

talk to ping (PR3M4TUR3D3T0N4T1ON) or matt (DEATH.). if they are still alive, they shot a 5s-fe in a celica as well as a camry. although i dont think it went well.

[freddy121389]

I've talked to matt about this before, he said it worked great but he went to a turbo short after because he wanted more. A 75 shot would be safe, the rule is 20hp per cylinder so 75 meets that. Nitrous is very safe if hooked up properly, make sure you have a bottle heater, fuel cut off switch, and a WOT switch. Just make sure you have all the necessary precautions and nitrous is safe. I'm not to sure how it would work with the safc since your already adjusting the fuel being pumped in.

[94celicadude]

I've talked to matt about this before, he said it worked great but he went to a turbo short after because he wanted more. A 75 shot would be safe, the rule is 20hp per cylinder so 75 meets that. Nitrous is very safe if hooked up properly, make sure you have a bottle heater, fuel cut off switch, and a WOT switch. Just make sure you have all the necessary precautions and nitrous is safe. I'm not to sure how it would work with the safc since your already adjusting the fuel being pumped in.

Thanks for your advice... this gives me a little faith that it might work out in the end.

I am planning on getting the bottle heater... the Zex kit comes with the WOT switch included in their control unit... and I am going to look into a window switch to make sure I have no chance of over revving... i think that is my biggest fear.



Has anybody else had any luck... or misfortune giving their girl giggle juice? Always looking for input...

Once again thanks to those that have added their knowledge!

[freddy121389]

i thought about going with a 75 shot myself since i have an automatic but im just going to turbo with very light boost like 8psi

[94celicadude]

i thought about going with a 75 shot myself since i have an automatic but im just going to turbo with very light boost like 8psi

Thread jacker!

[808celica]

just dont hold the button down in all gears

[freddy121389]

just dont hold the button down in all gears

i think he's going for a wot switch rather than push button

[94celicadude]

Gotta Granny shift it

Anybody else know of somebody that has lots of experience with nitrous?

I have a friend that runs a V6 mustang with an 80 shot.. (gutted, Slicks & Skinnies) and he is running 12.01 in the 1/4.

Now i know realistically that i wont be able to run anywhere close to that w/ nitrous... but id be happy to hit low 14s

He tells me that overhead cam motors dont usually take well to nitrous, has anybody else heard this too or dealt with it?

Thanks for the input!

[freddy121389]

isn't his mustang a sohc?

[94celicadude]

isn't his mustang a sohc?

yes.

So are civics, and integras and everything else people put spray on.... just some words from a good friend who runs all his cars on nitrous.

[freddy121389]

75 shot is really little, as long as your going that or below you should be ok, just make sure you have all the safety measures to make it safe

[95st-celica]

100 shot on a rebuilt 5s will be fine...get it tuned to run a little rich and you wont have any problems.

i wouldnt recomend hitting it every time you floor it, but every once in a while wont hurt it.

i say go for it

[lagos]

A slow car on spray is still a slow car.

[95st-celica]

A slow car on spray is still a slow car.

[94celicadude]

100 shot on a rebuilt 5s will be fine...get it tuned to run a little rich and you wont have any problems.

i wouldnt recomend hitting it every time you floor it, but every once in a while wont hurt it.

i say go for it

I was thinking 100 shot once on the dyno to see what kind of numbers i run, and maybe on occasion if i get some V8 that wants to be humiliated...

I will also be running a booster fuel pump (from Zex) in order to make sure i will never be in need of fuel... playing it really safe on this one.

A slow car on spray is still a slow car.

Truth hurts man...

[Stambo]

a buddy of mine has a 50 shot in his ford probe. Yes i know a probe... His is still running fine. BTW its the v6 one, He was hitting 14.6

[94celicadude]

a buddy of mine has a 50 shot in his ford probe. Yes i know a probe... His is still running fine. BTW its the v6 one, He was hitting 14.6

I figured those things should run mid 15s without the shot... so i guess for a 50 thats not too bad.

But yes, a slow car with nitrous, is still a slow car lol

Anybody else have any advice they are willing to part with?

[lagos]

Invest in a turbo kit and have a fast car.

[94celicadude]

Invest in a turbo kit and have a fast car.

Actually,

I have weighed my options, and I did originally want to invest in a turbo kit, but as I am a broke college student with no income, it would be much more difficult for me to do this. I already have the nitrous kit sitting at home, and it stares me in the face every time i go into my room.

I know that I will not obtain nearly a good or numbers just spraying the car as I would with a turbo setup, but since it seems like no one else has ventured too deep into this area with the 5S, it gives me another reason to pioneer it and see what happens.

I hope that I will be able to reliably spray a 75 shot, with the occasional 100 shot, and since nitrous is a very close 1:1 ratio, i could be seeing upwards of 220 WHP.

Just wanted to get any insight from others on the forum to see if anybody else had delved into this.

Thank for all the input so far... keep it coming!