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-   Evo Engine / Turbo / Drivetrain (https://www.evolutionm.net/forums/evo-engine-turbo-drivetrain-22/)
-   -   what causes a turbo to back spool in high rpm's (https://www.evolutionm.net/forums/evo-engine-turbo-drivetrain/283906-what-causes-turbo-back-spool-high-rpms.html)

apagan01 Jul 18, 2007 05:23 AM

what causes a turbo to back spool in high rpm's
 
what would cause a turbo to back spool,
in 1st gear everythng ok with his car but in 2nd the exhaust pops and the car stutters ??

subrwho Jul 18, 2007 05:25 AM

The "sputter" is due to a bad spark plug(s) or plug wire(s)

Now the spool problem is more than likely a defective bov, or wrongly installed bov/diverter valve. (could be installed backwards)

Warrtalon Jul 18, 2007 06:20 AM

Huh? What is back spool? Sounds like you need new plugs, but I'm not sure what you mean by "back spool."

apagan01 Jul 18, 2007 08:49 AM


Originally Posted by Warrtalon (Post 4550468)
Huh? What is back spool? Sounds like you need new plugs, but I'm not sure what you mean by "back spool."

turbo spins backwards

theblue Jul 18, 2007 09:47 AM


Originally Posted by apagan01 (Post 4550362)
in 2nd the exhaust pops and the car stutters ??

and your conclusion was that the turbo must be spinning backwards :lol:

what mods does this car have? it's probably tuning or plugs?

Ph3n1x Jul 18, 2007 09:48 AM

Never heard of "back Spool"


Change your plugs...or there gapped to large.

krazy srt4 Jul 18, 2007 09:55 AM

he might be talkin about turbo flutter

sikrsix Jul 18, 2007 09:57 AM

turn the turbo around! hahaha

Evoryder Jul 18, 2007 10:01 AM


Originally Posted by sikrsix (Post 4551136)
turn the turbo around! hahaha

lol...mean

bad plugs

Warrtalon Jul 18, 2007 10:07 AM


Originally Posted by apagan01 (Post 4550885)
turbo spins backwards

It's not spinning backwards, man...

dudical26 Jul 18, 2007 10:27 AM

how have you decided that it is spinning backwards. Is exhaust coming out the intake and vice versa.

lol.

apagan01 Jul 18, 2007 11:18 AM

its a friend's car we were just talking about it at work hes got in at the dealer now, the car is all efd up anuways,
i was just curious to see if any one has a good answer right of the back

apagan01 Jul 18, 2007 11:19 AM


Originally Posted by dudical26 (Post 4551241)
how have you decided that it is spinning backwards. Is exhaust coming out the intake and vice versa.

lol.



well i havent decided nothing, his car seems to pull great in 1st gear now when you hit second it stutters and stalls, whatever is an srt-4 who cares,

DSMu4ia Jul 18, 2007 11:28 AM

Turbo surge.

dsmfan95 Jul 18, 2007 11:33 AM


Originally Posted by apagan01 (Post 4551386)
well i havent decided nothing, his car seems to pull great in 1st gear now when you hit second it stutters and stalls, whatever is an srt-4 who cares,

Sounds like turbo surge. The small turbos on the SRT-4's are notorious for that.


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