HELP!!!!!!!!!.......(again)

[1DangerousV6]

so iwas going my practice runs...and i dont know what the real times are obiously these are just practices...and i was getting mid 13s on just the supercharger...which is about right...and then i went to inject a 125 shot of nitrous with it...the car wasnt having any of that...it was bucking and sputtering and made me run 15s...i tried a couple times but got 15s every time...so i just figured my fuel system couldnt handle it...so im thinking ok...no problem...i'll just run with the supercharger only...get in the 13s...and that'll be cool till i get a pump...so i went back to doing runs SC only...except now...i still can get out of the 15s ...i had new spark plugs and wires and a new battery put in...but nothing...still in the 15s...i messed up something...but have no idea what it is...i cant hear, see, or smell anything..all i know is the car is like 2 seconds slower!...anybody have any ideas???

[1DangerousV6]

(PS: the gauges all still read fine...im still getting 6 psi of boost...but cant get any better than low 15s ...its like the car is just getting cut off somewhere...i dont get it!)

[Tyler]

man i thought 100 shot and boost was pushing it... and you went to 125...

i asked you this before in your other thread.. is this a wet or dry shot of NO2

[Tyler]

m supposed to drag tonight (if i dont get rained out)...so i was doing some practice runs yesterday (using a stopwatch and the mile markers on a dead highway tee hee hee)...using a 100 shot with the supercharger the car would sputter and die a bit towards the 2nd 1/2 of the run and i was getting times in the 15s ...but without it i was getting times in the 13s ...i think my fuel system can't handle it...i never used it that far cuz i think the f****** g-tech was judging a 1/4 mile too short...so i dropped it to a 75 shot...the car seemed to handle it fine...but i still dont think the fuel system was...cuz it wasnt really making any difference in the time...i dont have jets for anything smaller...what should i do????...try to run with it?...or should i just run without it?...help!!!

i suggest you DO NOT SPRAY YOUR CAR ANYMORE TILL YOU GET THIS **** RESOLVED... your just gonna end up ****ing something up big time

[1DangerousV6]

this is a dry shot...im hoping its just the fuel pump or some sensor or something and not real engine damage...and believe me im not spraying that thing

[1DangerousV6]

its weird too...the car idles smoothly...drives fine...i probably wouldnt even notice it if i wasnt running 1/4 mile practices...but running 15s (or dropping 2 whole seconds)...something is definitely wrong :(

[Shirl]

If you were crazy enough to inject a 125 dry shot (on top of the blower) with the stock fuel system, chances are you damaged something. Any codes?

[1DangerousV6]

hey Shirl [img]smile.gif[/img] ...yeah...everybody i know always tells me im a crazy bastard lol ...anyways...no...thats the weird thing...no codes...i didnt hear or see or feel anything...except for when i was actually injecting it and it was kinda sputtering and bucking on me...but i didnt see any smoke...didnt smell anything...hear anything...the car runs smooth...makes 6 psi of boost...i couldnt see any leaks or anythning...just runs 2 whole seconds slower and i have no idea what the problem is ...the only thing i actually notice is that it seems to take off a little slower in the lower gears...but once i get up to 3rd and 4th it seems fine...but it seems to launch and go from like 0 - 40 a bit slower :(

[1DangerousV6]

ok..so i just went and took a really really good look at my engine...i dont see any leaks or anything...but i did notice one thing...on the front end of my oil filter there is a round-ish area in the metal about the size of a golf ball that is sort of indented, disformed, and discolored...like it melted a bit or something...however my oil level and pressure are fine while driving...im wondering how long that has been like that and if that has anything to do with it?

[John_D.]

Sounds like you're running lean.

My fuel pump couldn't keep up past a 125 shot. That's just the nitrous shot, not even the blower.

Hopefully you didn't damage anything. A piston will probably let go first if you go lean.

Upgraded injectors (from 22's to 24's) carried me up to a 150 shot, but I had to bump up the fuel pressure in order to get there.

The combination of a blower and a big dry shot, is way too much for the stock injectors or the stock pump.

[1DangerousV6]

damn...thanks John...i have an appointment for thursday to have it checked out...im just crossing my fingers that i didnt mwaa up anything too badly...about how much is it to replace pistons?

[AllTheGoodNamesAreGone]

IMHO get a wideband guage if you plan on doing this and having the car survive..

also.. SLP is selling sets of 25lb bosch injectors for $99 a set of 8... cant beat that imho..

[Radcat]

How do you know what you are running? You said you sold the g-tec. It's crazy enough to run a SC on a stock fuel system let alone a SC and any amount of nitrous.

[1DangerousV6]

i just changed the oil filter and of course that didnt do anything

radcat...just using the mile markers and a stop watch on the dead highway i was running mid 13s...which seemed about right...but yeah a fuel pump is definitely on the way

AllTheGoodNames...thanks for the info on the injectors...thats sweet...definitely cant beat that

does anyone know about how much it costs to replace pistons?? ..if thats my problem...also...what do you guys think about the MSD pump rksport sells?...i only ask cuz it says it handles 500 horses and it sells on summitracing.com for $76

[1DangerousV6]

yeah i dont know what im actually running...these are just practices...i guess the point is after trying to run the nitrous i've dropped 2 whole seconds :(