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I swear my car feels like it's pulling harder at 50% throttle... am I crazy


EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102349 posted 01/09/13 06:43 PM     Remind Me!  Send Private Message   Edit Post      
It's tuned, it's fast and fun. It's also, like the rest, 20 years old and prone to goofiness. Now I swear when the turbo spools up, it tugs harder when I'm pacing my throttle to WOT as the turbo spools up, as opposed to just going to WOT at 3500 rpms. It could seriously just be me... I'll post logs later when I get a chance to flog it a bit.

mods list:
264/264 cams (this is a theory from English Racing who said they weren't stock, but weren't sure what they actually were)
walbro 255
1000cc injectors
2g maf
2g intake
custom ported exhaust
20g turbo
ETS intercooler

etc.

Thoughts?



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

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James
Does lots of head


Galant VR-4 org Post #: 1102358 posted 01/09/13 07:11 PM     Remind Me!  Send Private Message   Edit Post      
I have this problem... But it's due to boost creep/fuel cut.



1990 Summit White Galant GSX
Chipped EPROM ECU/2g maf/550cc injectors/3in exhaust /E316G/FMIC/Wally255/AeromotiveAFPR/lower shores MBC

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EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102372 posted 01/09/13 08:30 PM     Remind Me!  Send Private Message   Edit Post      
Well the boost builds steady all the way to 18.5psi (where I have it set right now) and stays put. With boost creep, doesn't it drop off, then boost to oblivion? I should also mention that I have a narrowband A/F gauge. Now I know they aren't nearly as useful as a wideband, but according to the gauge (for what it's worth), I'm not running lean under any sort of throttle, even high-boost.

It was tuned at 22psi, but I wouldn't think turning the boost down would cause the car to feel like it's pulling harder at 50% throttle crossing 10psi then WOT crossing 10psi

What should I be looking for on the logs to see if I'm leaning out at high RPM's? Noob question, I know, but I'm new to this car and the DSMLink.

Thanks in advance, guys!

C


Edited by EfiniX (01/09/13 08:50 PM)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.205.45) | Report this post to a Moderator

SleepinGVR4
What are we going to do today Ferb?
629/2000


Galant VR-4 org Post #: 1102377 posted 01/09/13 08:51 PM     Remind Me!  Send Private Message   Edit Post      
Get a wideband. I wouldn't trust a narrowband.



Sean

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EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102380 posted 01/09/13 09:00 PM     Remind Me!  Send Private Message   Edit Post      
We'll I've got a DSMLink v3, so I've got a wideband ala the logging. So what am I looking for?



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.205.45) | Report this post to a Moderator

turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1102383 posted 01/09/13 09:30 PM     Remind Me!  Send Private Message   Edit Post      
Huh? Either you have a WB or you don't. V3 can't throw out any A/F ratio values without one.



-Mark

A face only a grocery shopper could love.
1051

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EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102386 posted 01/09/13 09:47 PM     Remind Me!  Send Private Message   Edit Post      
sorry, I should be more specific. I have a wideband O2 sensor and a narrowband Autometer A/F gauge. The gauge came with the car and until I put something else in the pillar pod, I figured I would leave it in.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.205.45) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102387 posted 01/09/13 09:50 PM     Remind Me!  Send Private Message   Edit Post      
hmmm.... or so I say. It's in the paperwork, but this car... I'm going to go check now.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.205.45) | Report this post to a Moderator

BadVr4
wanted a different answer
801/2000


Galant VR-4 org Post #: 1102388 posted 01/09/13 09:51 PM     Remind Me!  Send Private Message   Edit Post      
narrowband is nearly useless

Posts: 678 | From: manchester, ct | Member Since: 12/30/04 | IP: (68.9.199.9) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102394 posted 01/09/13 10:39 PM     Remind Me!  Send Private Message   Edit Post      
Well it sure is pretty while the car is running. Anyway, I'm going to go move my car into my garage and see just how many wires are coming out of the O2 sensor. I'm also going to bump the boost back up to the tune level (22psi). I'll do some logging and see what I see.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.205.45) | Report this post to a Moderator

Hertz Galant VR4.org Administrator
OneTitle to rule them all.
77/2000


Galant VR-4 org Post #: 1102401 posted 01/09/13 11:11 PM     Remind Me!  Send Private Message   Edit Post      
Knock -- timing pulled? Does it feel fast again if you roll off throttle wait a second and plant it again?



Ryan Hertz

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EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102402 posted 01/09/13 11:27 PM     Remind Me!  Send Private Message   Edit Post      
No CEL's on the dash or in the dsmlink, so i dont think it's knock. Thing is i had a deent knock issue before the link and that's not what this feels like. If the narrowband is to be trusted, I'm lean at throttle above 40% or so. I'll pull the plugs and check later when i get home.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (208.54.32.187) | Report this post to a Moderator

turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1102407 posted 01/09/13 11:59 PM     Remind Me!  Send Private Message   Edit Post      
NB is not to be trusted. Mine always shows lean, even though my WB shows 10.8:1.

You can have a WB without a gauge, but it needs to be connected to ECMlink so that it can be logged/seen. Can you log WB?



-Mark

A face only a grocery shopper could love.
1051


Edited by turbowop (01/10/13 12:00 AM)

Posts: 11959 | From: Yakima, WA | Member Since: 04/29/01 | IP: (71.92.106.100) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1102416 posted 01/10/13 01:54 AM     Remind Me!  Send Private Message   Edit Post      
yeah, the NB is all over the place on the drive home tonight. fortunately, all of this poking under the hood has yielded the answer to another lingering question I've had about the funky smell I get after pushing the car around. I appears as though the dipstick leaks oil, the sneaky bastard. Sealing it up with a bit of cloth shortly. I'm going to order an Innovate wideband kit and get it hooked to the DSMLink and go from there.

Ah, the gift that keeps on giving.

C



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.205.45) | Report this post to a Moderator

OMFGeofffff
All I want is a dodgy
567/1000


Galant VR-4 org Post #: 1102506 posted 01/10/13 07:45 PM     Remind Me!  Send Private Message   Edit Post      
Is it leaking near the top of the dipstick tube? If it is and the actual dipstick is popping out I would invest in a new oem dipstick. Less than $20. If it's still popping out then you have a whole 'nother problem. Some people like to "bandaid" it with a springtype dipstick/tube combo.



-Jeff
Kensington Grey - A87 stock (EQ/input, no sunroof)
XBL - uh oh its JEFF

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EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1103180 posted 01/15/13 07:53 PM     Remind Me!  Send Private Message   Edit Post      
Yeah, the rubber boot at the top of the stick is 20-years worth of worthless right now. The rubber is just hard and the only thing holding it even marginally in is the crimp in the pipe. I would say it's time to spring for a new dipstick



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.205.45) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1103671 posted 01/18/13 12:13 PM     Remind Me!  Send Private Message   Edit Post      
Innovate MTX-L wideband kit ordered. More to come...



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (64.134.138.120) | Report this post to a Moderator

Armitage
VR4CED
960/1000


Galant VR-4 org Post #: 1103822 posted 01/19/13 02:56 PM     Remind Me!  Send Private Message   Edit Post      
At part throttle, you're likely in closed loop operation. When you go WOT, it's in open loop and only running on the a/f map you've programmed in. It sounds like that map needs tweaking. You're on the right path with the WBO2.



'92 Galant VR-4 #960
'93 RX-7 Twin Turbo

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EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1103989 posted 01/20/13 11:57 PM     Remind Me!  Send Private Message   Edit Post      
Fuuuuu.... I miss my 93 FD so hard



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (67.5.197.203) | Report this post to a Moderator

Armitage
VR4CED
960/1000


Galant VR-4 org Post #: 1104026 posted 01/21/13 09:20 AM     Remind Me!  Send Private Message   Edit Post      
Hehe GVR4, FD and an SV, nice choices. I have an '01 SV myself I tell you some days I really get fed up with the ridiculous 90's engineering vacuum line nonsense complexity of the sequential turbos, emissions BS, etc. but when the whole thing working right it still puts a smile on my face.



'92 Galant VR-4 #960
'93 RX-7 Twin Turbo

Posts: 715 | From: Herndon, VA | Member Since: 10/16/03 | IP: (71.178.19.19) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1104079 posted 01/21/13 01:51 PM     Remind Me!  Send Private Message   Edit Post      
I've told my friends that owning the TT RX-7 was like dating a crazy striper. Not worth it in any way, right up until you got in it.

Then it was worth it completely

then one day, the fuel pressure regulator goes and it all burns down...



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (208.54.32.161) | Report this post to a Moderator

Armitage
VR4CED
960/1000


Galant VR-4 org Post #: 1104115 posted 01/21/13 05:59 PM     Remind Me!  Send Private Message   Edit Post   
Haha good one.

Damn that sucks, sorry to hear. That is a common issue with the fuel pulsation dampener leaking. I just replaced mine a year ago so I hope to avoid that but I almost burnt my car to the ground yesterday doing something else entirely.



'92 Galant VR-4 #960
'93 RX-7 Twin Turbo

Posts: 715 | From: Herndon, VA | Member Since: 10/16/03 | IP: (71.178.19.19) | Report this post to a Moderator


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