jetting question

[tc_by_trd]

hey guys welli have been running my car with nitrous for like 3 months l=now i am addicted to it but i have a feeling i have been running a lil bit rich i wanna makes sure im not well i have a nos system and i have a .041 in the nitrous and a .024 in the fuel which is what one calculator told me to use, my fuel pressure is about 43-45 (4cl) also when i dyno my car i got a afr of about 12+/- oh and i aiming for a 75 shot so if you guys can tell me the correct jet sizes so i dont run rich or lean pls oh and i rather run a lil rich than lean cuase i heard that lean causes big booms lol

[hammered54]

gee another plug ???, what do your spark plug's look like after a pass with the no2?? go to one of the other thread's on this site relating to "spark plug's" read it and then you'll know first hand if your to rich/lean. it's a great post and an ez fix, good luck

[tc_by_trd]

thanks dude and they look a lil black brown my brother is my mechanic and they say they look perfect but he is more of a turbo person than nitrous im the first in the family that tries nitrous so we're not sure how im running or how the spark plugs look

[tc_by_trd]

also i was wondering what spark plugs i should use, righ tnow im using ngk iridium but i dont know where to buy spark plugs for nitrous and also for 4cl cars cause all the ones i have found are for like v8's and stuff

[hammered54]

brack/brown o.k.? not in my book,, with out no2 plug's should be soot free and tan in color, NGK's are O.K. you'll have to try a few diff brand's to find what work's best for your car's set up (it's like beer they all get you drunk but which one taste's best) yuk yuk, any good part's store should be able to get the plug's for you, you need a colder plug with a w/no2, and a good ing. system, 1 step colder should be O.K. with a 75shot, a little less timing when the no2 is on, and good gas is a must!! read the article and give it to your brother sound's like he need's it, good luck and go slow with the tune.

[srsnow]

When you did the plug reading did you let the car idle at all? If you don't shut the car off right after the pass it can throw the reading off.

[tc_by_trd]

well i have been running the nitrous for 3 months now and i change the spark plugs about every month or so and they seem like a good color to me but im no nitrous expert lol oh and yeah i let teh car idle so it can get all the n2o out the engine

[tc_by_trd]

also guys my car is a 5speed and i want to change the flywheel but it will make it revv up faster and im my head it makes sence that i want to revv up faster when not on the juice but i want to revv up slower with the juice on cause it equals more time with the n2o so i want to know what you guys think?? should i get it or not ?

[mrr23]

12:1 is pretty good. some will say 11:1 is better.

[JamesD]

Reving Up Faster Is Always Better. Faster You Rev The Faster The Car Is Going. The Light Weight Flywheel Only Reduces The Resistance Between The Engine's Output To The Wheels. In Other Words A More Efficent Drivetrain, More Power Will Make It To The Wheels. While You're At It Upgrade The Stock Clutch, 255 Lb Of Torque Is Way To Much For The Stock Tc Clutch. I'm Going To Upgrade The Flywheel And Clutch After I Torch The First Clutch. If You Look On Scionlife.com And Use The Search Engine You Can Find Some Articles About People Using Nos. They Mention What Plugs They Have Used. Sorry I'm Yelling It's Sunday And I'm At Work.

[tc_by_trd]

^^ oh yeah i already burned my clutch lol my new one is one the way, but i dont want to rev faster cause that mean less time on the button and thats not good im only gonna get the stage 1 from spec clutchs and it handles up to 365tq which is way more than what i need, and i use ngk iridum i think ama stick to those since they are working perfect cept i got to change them too much and its like 30 bucks every change.

[tc_by_trd]

hey mrr23 is 11.1 too lean?? i rather run rich than lean cause i've heard lean cause the big booms lol and im at 11.9-12.1 i think it still pretty good i mean how can i get more power out of my 75 shot, its only giving me 60hp at the wheels i was at least expecting 65-70 ( i know a 75 doenst really give 75hp) but i was expecting a lil more, i want to get the best bang for my buck, know what i mean??