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-   -   Gross misfires (vid)(fixxed) (https://www.homemadeturbo.com/forced-induction-7/gross-misfires-vid-fixxed-78049/)

emoretared 05-20-2007 01:57 AM

Gross misfires (vid)(fixxed)
 
So i went out to test my new ----, and when i give it WOT or even 3/4 around 5-6k RPM it just misfires really bad. If i go into it REALLY slow it will go to redline but even the sometimes it will misfire and i have to let of a little and then go back into throttle slowly.

im sure it has been answered. i searched but i suck at it.

Its a b18b on crome basemap on 11lbs, 255lph pump, 450s when i had it on 7 lbs with my last turbo it did fine WOT but now, i donno. Because ill watch my gauge and it will cutout at like 5lbs sometimes with the misfires.


Video of misfiring and the dumbass that almost pulls out in front of me.

http://youtube.com/watch?v=LQJE4Hz2k4Y

widebody93 05-20-2007 02:01 AM

Re: Gross misfires
 
Whats your plugs gapped at/ Whats the wastegate spring set at/ what AFR are you tuned at/ YOU HAVE A WIDE BAND????? Whats the Timing set at? Stuff we need to know to help out

emoretared 05-20-2007 02:17 AM

Re: Gross misfires
 
its just sitting on a basemap i got from xenocron. im gaped to .44 or whatever stock hondas are. should i drop to .28?
WG spring is set to 11.47 psi
No i dont have a wideband, but im just kinda wondering why it didnt do this at 7 lbs but it is at 11

and as for timing, again im sure it is untouched.

i need to lern2tune. but i dont have that kind of time atm, or the equipment.

emoretared 05-21-2007 02:19 PM

Re: Gross misfires
 
update for vid

trent 05-21-2007 04:06 PM

Re: Gross misfires (vid)
 
well being a base map that would probably be the reason right there . basemaps are not made to be ripped on there made to get you to tuning and threw tuning without detonating, and it would do it at 11psi because that would be more pressure than 7 i think that math works out...... yep it does. base maps arent usually good up in the teens usualy 7 or 8 psi. and if you have a base map your timing will be changed but moral of the story go get tuned !!!!!!!!!!!!!!

HMTdmc 05-21-2007 04:11 PM

Re: Gross misfires
 

Originally Posted by emoretared
its just sitting on a basemap i got from xenocron. im gaped to .44 or whatever stock hondas are. should i drop to .28?
WG spring is set to 11.47 psi
No i dont have a wideband, but im just kinda wondering why it didnt do this at 7 lbs but it is at 11

and as for timing, again im sure it is untouched.

i need to lern2tune. but i dont have that kind of time atm, or the equipment.

Well you do need to drop those plug gaps down around .30 And at 11.5 wg setting your probably hitting the stock maps limits. You need a 2 bar map sensor and to get the car tuned

HMTdmc 05-21-2007 04:14 PM

Re: Gross misfires
 

Originally Posted by Dmc1
Well you do need to drop those plug gaps down around .30 And at 11.5 wg setting your probably hitting the stock maps limits. You need a 2 bar map sensor and to get the car tuned

I'm in Cincinnati I'll tune your car for $200. I have free time to do it until thursday Then I have some more work lined up.

emoretared 05-21-2007 06:54 PM

Re: Gross misfires (vid)
 
ill let you know on the tune. and ill drop my plug gaps down and probably just put my 7lb spring in my WG.

Thanks for responses.

stillnoturbo 05-21-2007 08:34 PM

Re: Gross misfires (vid)
 
Get 1 step colder plugs and gap them to like .28. I did it to my last setup and it was a night and day difference. Yeah you may think their just plugs but it's crazy what the swap can do.

biscuit 05-21-2007 09:15 PM

Re: Gross misfires (vid)
 
Car sounds good otherwise. What hit your windshield?


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