HomemadeTurbo - DIY Turbo Forum

HomemadeTurbo - DIY Turbo Forum (https://www.homemadeturbo.com/)
-   Hybrid/Tech (https://www.homemadeturbo.com/hybrid-tech-8/)
-   -   Backfiring/popping under boost (https://www.homemadeturbo.com/hybrid-tech-8/backfiring-popping-under-boost-96375/)

Hellbert 10-24-2008 10:44 PM

Re: Backfiring/popping under boost
 
if ur running a stock map sensor it wont like anything over about 11 or so pounds. thats what my crx does when it spikes over about 11 pounds

HMTguy 10-24-2008 11:01 PM

Re: Backfiring/popping under boost
 

Originally Posted by chris
How old are your ignition parts cap/rotor/plugs/wires?

Everything is less than 2 years old other than wires... I have another set laying around I'll give it a shot.


Originally Posted by Hellbert
if ur running a stock map sensor it wont like anything over about 11 or so pounds. thats what my crx does when it spikes over about 11 pounds

2.5 bar

Hellbert 10-24-2008 11:16 PM

Re: Backfiring/popping under boost
 
just a thought it wouldnt happen to be related to rpm at all would it? maybe some sort of coil breakdown or would that cause a misfire too?

HMTguy 10-24-2008 11:28 PM

Re: Backfiring/popping under boost
 
Nope, only on high boost. Lower than 12 psi she revs to 7000 just fine

Holsquirt. 10-25-2008 12:37 AM

Re: Backfiring/popping under boost
 

Originally Posted by Holsquirt.
so when you put in fresh plugs it continues?


HMTguy 10-25-2008 12:39 AM

Re: Backfiring/popping under boost
 
Yep

Holsquirt. 10-25-2008 12:51 AM

Re: Backfiring/popping under boost
 
vids possible? i had this issue pretty bad, pulled great to redline at 17 or so, go to 22 and it would pop like mad, new plugs always pull smooth to 30...
i had to do 3 fixes
1) lean it out a tad up top, misifires at 10.8, pulls solid at 11.2
2) gap down plugs to .024ish
3) go ass to mouth on a drunken townie, then seafoam my ----

HMTguy 10-25-2008 04:00 AM

Re: Backfiring/popping under boost
 
#3 (first part) seems to be something worth trying

Scott-EP 10-25-2008 09:42 AM

Re: Backfiring/popping under boost
 
sounds like the temp change is your problem to me.

are you using crome? there is a place where you can change the multipliers for different temps

Tom-Guy 10-26-2008 12:59 AM

Re: Backfiring/popping under boost
 
Bad coil/distributor.


All times are GMT -5. The time now is 11:06 PM.


© 2024 MH Sub I, LLC dba Internet Brands