90% sure it went lean.....i didnt have a a/f gauge... but it had shot a few times before it went...and it was fine ....then the last run..bang

 

thats what happen when you forget little things like that.good excuse to go bigger or a forged bottom end.good luck.

 

Well **** then, I'm putting my motor and tranny back in together. The transmission is the biggest **** coming in and going out. Thanks, you just saved me HOURS.

Mike

 

Can you take it in and out from the top with tranny/motor with the heads on?

Mike

 

What do you mean you forgot to change plugs? Were you running stock plugs? TR55's?

 

What kind of times were you putting down with a hundred shot, and your mods..

 

Well the one you had probably would have held up had you taken the proper safety precautions that are stated over and over and over again in the nitrous section. Not trying to rag on you too much but you provided a perfect example of why so many people out there believe the "myth" that nitrous is dangerous to a motor, when in reality all you had to do was to relax a little and have patientce and install some $20 plugs.

Good luck with the new motor and be sure to have these installed:
1. Fuel Pressure Safety Switch
2. Colder plugs (NGK TR6's gapped @ .035-.038)
3. Window Switch.
4. WOT Switch.
5. Upgraded fuel pump (not needed but highly recommended)

 

Did you look at your plugs yet?? I bet they are melted or damaged in someway. Your fuel system should be perfectly capable of providing plenty of fuel for the amount of mods that you have plus the nitrous, so I dont think it was a result of not enough fuel. The plugs probably got too hot.

 

The nitrous had no part in this. The fact that the owner mod did not change the plugs was what caused this. Dont blame the spray, it only did what you told it to.

 

sorry that i worded that wrong...def agree with all u said....i belive nitrous isnt that bad it was a driver era...when i said that...i meant that it was becuase of the nitrous the motor went...if u know wat im sayin....i had the WOT switch in place...i just had got in installed...working then i was like hey lets go try it... the plugs i had already bought...they were in my glove box..i know a great place for them lol...the new motor is goin in this week...im def gonna run more saftey this time...cause i do plan to spray again

 

i took my heads off...but id say there was enough room...when u relase the hood latchs u could get it by...cause i plan on putting the new motor in with the heads on it...and to get the motor and tranny out of the car...took less than an hour with me and 2 friends...but somehow we got the CPS sensor stuck and ripped out of where it goes...its gonna be fun tryin to re wire it

 

never got to run at the track with my mods...bone stock i did a 13.8...before any mods in the sig...so with those mods and N20 who knows...maybe mid 12's at least id hope

 

LOL, the plugs were in the glovebox

 

what did the plugs that were in the motor look like?

 

Brother, I so feel your pain.



Good time to upgrade and spend money though.

 

That's to funny, I ripped my CPS taking my motor out this time to. This is my 2nd time. I'm going to try your method, let me know if you beat me to it with heads on.

 

I don't know much about engines, I am still fairly new at this game, but if you went lean on the hot plugs would it not have burned a ring or burnt a hole in the piston?? don't see how running lean would make the motor come apart. Maybe something just came apart in the bottom end. Either way, good luck on the new motor.

 

Lean can cause detonation. which is knock. Knock can beat the **** out of anything, including the bottom end. Piston just outlived the crank.

 

try the katech rodbolt mod before engines go in / timingchain and valvesprings too

 

for those of us who know jack about nitrous, whats the deal with the plugs? are you supposed to run a colder plug range or something?