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-   -   Question on Midpipe install. Is this normal? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/question-midpipe-install-normal-230071/)

Rx7pimpin Oct 6, 2003 03:53 PM

Question on Midpipe install. Is this normal?
 
I have just completed the install of my midpipe. I have all the necessary computer upgrades etc. The car still even runs a little rich at full boost.

My question is this: When I run WOT and let off I get a backfire almost every time. Now, I did anticipate this but I am also getting some white smoke for a second or two. Is this normal? I did not have this smoke until the midpipe was installed. I have no smoke on start up or any other time.

Anyone have an answer?

Thanks

Seldon Oct 6, 2003 04:06 PM

The smoke probably happened before you had the midpipe installed; the cat just trapped it... I'm really not sure though, cause thats just a guess

silver93 Oct 6, 2003 04:28 PM

yeah, it's common to see an increase in backfiring when you remove the main cat. the only real way to get rid of it is with a new computer than you can program (PFC, AEM, etc...) -

it is also normal to see that bit of smoke when starting up now. mine does the same thing (smoke) just for a few seconds after the first start of the day. it's just the oil in the chamber.

Team Belligerance Oct 6, 2003 05:17 PM

Yep, left over petro from when you cut the engine. What color was that smoke you're getting after a good WOT again?

Rx7pimpin Oct 7, 2003 08:48 AM


Originally posted by Team Belligerance
Yep, left over petro from when you cut the engine. What color was that smoke you're getting after a good WOT again?
It's white and it only happens after WOT for 2 seconds. Not on start up or any other time.

Thanks

RX7SpiritR Oct 7, 2003 02:14 PM

its probably one of several things I think. Its because its a new midpipe and it may do this for a little bit since its brand new just like a new exhaust on a car. Or, its just that after WOT its burning off some extra oil that was left over from WOT. It could also be a possible O-ring seal problem, but then again it doesn't happen on start up and you have no coolant issues. Hmmmmmm. :scratch:

Rx7pimpin Oct 7, 2003 09:29 PM

Thanks for the reply, if anyone else has a suggestion let me know.

silver93 Oct 7, 2003 10:40 PM

there's nothing wrong - don't worry about it.

RX7SpiritR Oct 7, 2003 10:55 PM

what makes you so sure, as your probably right. I just want to know why you say that. You obviously know something I don't. I want to know just for my knowlege anyways, not challenging you or anything so please dont think so.

Rx7pimpin Oct 8, 2003 09:48 AM


Originally posted by silver93
there's nothing wrong - don't worry about it.
Thank you for your reply, eliberate on why? and what the smoke is.

Rx7pimpin Oct 8, 2003 10:03 AM

For anyone who cares, I talked with Rotary Proformance and the white smoke is fuel being burned off.


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