Anyone with Nitrous Knowledge??

[Keen240sx]

Im have an 89 coupe AUTOMATIC (ka24e of course). I have an injen intake, 2.5'' custom catback, upgraded plugs and wires and an e-formance perfomance chip (chip is compared to JET). I am now looking at getting a small shot of nitrous (25 - 50 max). I've been doing alot of research and a couple of things still are not clear to me. First off, The engine and trans run great. The engine was rebuilt with stock parts at 115k, i now have 133k. The trans was swapped out with a 240 that was in an accident at only 60k. Will this small of a shot damage my engine? On an auto trans, what gear can i engauge in? After looking at several kits i think im going with a universal shark nozzle type (the one that installs before the throttle body) and an open throttle sensor of course. Let me know what you think. If you dont have decent knowledge please dont waste anyones time ( im sure im not the only one looking for some good answers to these questions). Any help would be appreciated!!

[Bronze MFP]

I had a 50 shot wet nitrous kit back in the day. Honestly I wouldn't waste my money on it again. a stock sr, rb or ca swap, or a turbo ka while more expensive, is a million times more fun (and faster) than a 50 shot of nitrous. turbo's are way more fun and you don't have to refill them that being said, if you are still dead set on getting a kit, I would not run it with your performance chip. those chips usually advance ignition timing and would not be safe to use for a nitrous kit. You would need to return your ecu to its stock form, and even take 5 degrees of timing out to run a 50 shot. Everthing else sounds fine though. I ran a 50 shot on my 180k mile ka and it was fine. but make sure its a wet kit and make sure to follow the installation instructions very carefully.As far as what gear to engage in, it doesnt matter, you only need to have your revs above 3000 before you engage it.

if you have any more questions, ask away

[Keen240sx]

Thanks for your help! I wish i could afford to swap or turbo but i just blew my tax check on getting that trans. The old trans was starting to have issues and i new i was going to start tuneing so i figured it was woth the money. The cheapest setup i could possibly put together was about 2500 and that was all crap parts. Then i would have no place to do the work and theres no way im paying someone to do it. On top of that its my only car so i don't want to constantly have boost on the engine. The nos i probably wont even use that often just good to know its there incase i need it! As for the ? about the gear can i engage in first or second gear??? are you positive?? The other part of that ? is should i be letting off the nitrous during shifting? The other ? is how the hell do i take 5 degrees off the ecu? Other that that those i think im good! thanks for your help.

[Bronze MFP]

yeah you can def. use it in first gear. a 50 shot shouldnt make you lose traction. a turbo setup can be loads more reliable than nitrous, the turbo is not always boosting the engine.anyways back to your Q's... as far as letting off during shifting, you should, but you shouldnt have to do it yourself. most nitrous kits are activated by a WOT (wide open throttle) switch because you shouldn't use it if your throttle isnt 100% open, and when you let off to shift, it automatically shuts the nitrous off. in your case with the auto, you dont have to worry about it because the trans does the shifting and the torque converter handles the rest, you just keep your foot planted. it's hard on parts, but what isnt when you're going fast?as far as timing goes, to take 5 degrees out, you dont do it at the ecu, you adjust your base timing at the distributor and check it with a timing light.

[Keen240sx]

How do toy adjust the timeing on the distributor cap? My last ? is how hard is it to install so its good and set? Im pretty good under the hood put i didnt know that adjusting the cap was possible! I REALLY appreciate the help!!

[Bronze MFP]

there are screws on the distributor you loosen and you can rotate it. i forget what way advances or retards timing, but you have to have a timing light to do it. its pretty easy. there are tutorials on here or the FSM will tell you how.

[Keen240sx]

By "how hard is it to install so its good and set" i really wanted to say how hard is it to install the universal nos kit so its good and set? Do you have any other advice... i guess ill squeeze you for all your worth since knowone else has posted... Thanks one again for your help!

[Bronze MFP]

nobody else on here really messes with nitrous. I had a hard time finding info when I was setting up my system. For you, the easiest way to go would be to get a Zex wet kit. it uses your tps sensor to activate the system so you don't have to setup a clumsy throttle switch. everything is contained in the control box (nitrous solenoids, fuel solenoids and tps switch) so you only have to wire that box up, run a line from your trunk mounted bottle to it, tap your fuel line and install the nozzle. might take you a day or 2 if you like to take your time and make the install look clean. Took me about 4-5 hours. but i work slow.