ZealoustheEnder
Contributor
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- 2003 MSP
Driving 2566 while 2507 is on stands had a bung welded in for my wide band.
What have you done to your MSP today?
- Thread starter baconbitz
- Start date
Yeah, that definitely won't happen. I'm probably more meticulous than the previous owner was.
That's incredible. I've seen a couple on craigslist with over 300k, going for the same price I paid..and not in near as nice shape. One I saw had 425k on it and he still wanted $3,500.
Thanks, I will definitely keep that in mind. It has an EGR delete so I'm hoping that will help with buildup. He said before he had the delete done, it was so clogged up it would only go about 40 mph. Lol.
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- 2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6
Aftermarket downpipe?
richard858862
Member
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- Mazda 323 f
Good day by chance my Mazda astina idle keep dropping up and down what could cause that
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- MSP 1145
EGR valve.
ZealoustheEnder
Contributor
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- 2003 MSP
Pope 3in DP, wide band went in the CS 3in after the stock deleted O2.
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- 2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6
That's a bit far away. You want your lambda for your wideband to be close to the manifold/turbo.
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- 2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6
Last night I decided to spend some time looking into the turbo issue. Very little shaft play. No oil on the inlet side of the turbo either. I drove the car and it started out boosting upwards of 18-19psi, but as I drove, the boost slowly dropped to only building 11-12psi. I also didn't have any smoke other than unspent fuel. My AFRs were pegging out my wideband at 10.1 under full throttle. My AFR at idle was about 15.5. And the BOV was nowhere near as loud as it was. I didn't notice this stuff the other day because I kept it out of boost fearing the turbo would fly apart and send tons of debris into my built engine. Drove around the neighborhood and started convincing myself it wasn't the turbo. Got back home and started poking around and found one of the cheap, rubber couplers I used on the MAF had a split in it. I keep couplers, but didn't have one quite the correct size to adapt to the MAF, but with some boiling hot water and working with it, I was able to get it on. There is residual oil in the charge piping, but none is pooling. I cleaned the MAF while it was out and reassembled it. I even cranked the MBC down a little and was able to hit 24psi. It seems as though the eBay turbo isn't dead yet. I've been thinking these past few days that the turbo was failing without even actually spending time to diagnose the problem and just assumed the turbo was gone. All because I assumed rather than actually took the time.
ZealoustheEnder
Contributor
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- 2003 MSP
Since the factory O2 has a spacers to keep from getting a check engine light I am placing the wideband in front of that.
ilovewheels
Member
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- msp
thepope540
Member
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- 2003.5 Yellow Speed - Sold, Spicy - Sold, #639 Black Mica
The front of the midpipe is just about perfect. The sensor manufacturers all recommend about 30" from the turbo. Innovate says a minimum of 24". That's why, despite requests, I've never done a bung on the downpipe.
http://www.innovatemotorsports.com/support/manual/LC-2_Manual.pdf
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- 2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6
That was the first thing I did when I received mine. lol
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- 2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6
Auto Meter doesn't.... They recommend a few inches away. However they aren't manufacturing their own sensors. And, to my knowledge, neither is Innovative. They're using Bosch LSU4.2 sensors. The Bosch part numbers I've used when I needed replacements were from a Volvo application and a VW application. Both of which have the mounting location within a foot of the turbo.
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- 2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6
Just checked with Bosch and, in their own words, "install at a point where the gas is as hot as possible". And, while I have no proof where the hottest exhaust gas is, I'd imagine it's as close to the combustion chamber as possible. However, Bosch didn't give a specific distance. And they're the one manufacturing the sensors and providing them to these third parties like AEM, Innovative and Auto Meter. .02
ZealoustheEnder
Contributor
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- 2003 MSP
I don't just decide to place it there, Cork Sport told me to put it right after the DP. It is a Bosch sensor. I asked if it should go in the DP, they said no not with a turbo.
I'm not worried about it if measure where the stocks J pipe has a bung for a wideband it's about the same distance.
Mine is right before the cats
thepope540
Member
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- 2003.5 Yellow Speed - Sold, Spicy - Sold, #639 Black Mica
Pref, Its odd that Bosch didn't give you a temp because they told me operating is +-850 F with an EGT of 1300 F max and a max bung temp of less than 900 F a few years ago when I looked into this same topic.
I know the downpipe is seeing temps in this range and higher because the stainless will temper to a dark purple. This supports the at least 24" away rule that Innovate uses for sensor placement.
I guess the only way to know for sure, would be to get an official spec sheet from Bosch (not just the random answer from the guy on the phone - which is what we've both gotten with very different results) and then measure EGT in several places. It probably isn't worth worrying about though...
I know the downpipe is seeing temps in this range and higher because the stainless will temper to a dark purple. This supports the at least 24" away rule that Innovate uses for sensor placement.
I guess the only way to know for sure, would be to get an official spec sheet from Bosch (not just the random answer from the guy on the phone - which is what we've both gotten with very different results) and then measure EGT in several places. It probably isn't worth worrying about though...
Guys I'm on the fence. In the last 1.5 years I've collected quite a stash of msp parts. MAM exhaust manifold, steedspeed exhaust manifold, corksport downpipe, pope downpipe, vibrant 3" exhaust, forged short block, Doc B setup and the list goes on. I have an opportunity to purchase a 2006 MS6 with 78,000 thousand miles for $9000. I can't keep both cars so buying the MS6 would mean no msp. I'd really like to hear what you longterm owners think, specially if you've had any experience with an MS6.
IllaNoizeTV
Member
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- 2003 Mazdaspeed Protege
I haven't owned the msp for a long time only a year and some change but
MS6:
More powerful
Worth more
Less miles
Newer
All wheel drive
Choice is yours.
