GalantVR4.org The Mitsubishi Galant VR-4 Forum
Galant VR-4 Forums » Galant VR-4 » Technical Discussions » Re: Help with knock.
Previous thread Next thread

Re: Help with knock.


James
Does lots of head


Galant VR-4 org Post #: 1101905 posted 01/07/13 10:31 AM     Remind Me!  Send Private Message   Edit Post      
I did. I had a PLX setup but the black box that goes to the sensor and to the gauge busted. I don't think it's my AFR since I can do a WOT pull with 0-5 counts of knock. I'm looking for a decent arm wideband setup ATM



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (68.200.64.80) | Report this post to a Moderator

James
Does lots of head


Galant VR-4 org Post #: 1102019 posted 01/07/13 10:43 PM     Remind Me!  Send Private Message   Edit Post      
Made a little progress. Did some freereving testing today. Slowly reving from idle up to 3k. Looking at the logger I noticed that every time the knock jumped to 40+ at 1900rpms every time. And dropped back to 0 at 2500rpms.

I feel as if this is a pretty big discovery in the problem.

Note: so people don't think I'm just asking for help and not doing any thing. I'm talking to a guy about a EPROM ECU with a chip for my setup, talking to a friend about a fuelpump and AFPR, and a third guy about a wideband setup.

Now I just need a 4th to hand me a $1000 check.



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (68.200.64.80) | Report this post to a Moderator

Happy Birthday matt92vr4
Member ++
474/1000


Galant VR-4 org Post #: 1102051 posted 01/08/13 08:13 AM     Remind Me!  Send Private Message   Edit Post      
Glad you are making progress. If you are willing to drop a grand, go with the ECMLINK v3.

Now I'd like to see some loaded WOT pulls starting above 2500rpm to see what happens.


Edited by matt92vr4 (01/08/13 08:14 AM)

Posts: 676 | From: Venice, FL | Member Since: 10/03/10 | IP: (68.34.158.83) | Report this post to a Moderator

James
Does lots of head


Galant VR-4 org Post #: 1102069 posted 01/08/13 10:05 AM     Remind Me!  Send Private Message   Edit Post      
Link isn't on the list of plans for his car. It's not getting any bigger than the 14b and it will probably never see about 16psi.

Before i can do a real Wot pull I need to either...
A) get my fuel mods and turn up the boost to alleviate boost creep/fuel cut
B) pull the o2 and port it out

Now I've gotten pretty good and feathering the gas to redline to keep the boost around 10-12psi but I don't think that's going to give the most accurate readings



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (68.200.64.80) | Report this post to a Moderator

Happy Birthday matt92vr4
Member ++
474/1000


Galant VR-4 org Post #: 1102111 posted 01/08/13 12:38 PM     Remind Me!  Send Private Message   Edit Post      
Even with a stock turbo, a properly tuned speed density system will produce significant HP gains.



474/1000 Summit White
1993 Stealth RT/TT
1995 Montero SR
1998 Montero

Posts: 676 | From: Venice, FL | Member Since: 10/03/10 | IP: (68.34.158.83) | Report this post to a Moderator

turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1102145 posted 01/08/13 02:56 PM     Remind Me!  Send Private Message   Edit Post      
I personally feel a MAF based system is better for a daily driver, and is the reason I ran SD in 1051 and a 2gMaf in 503. Both had ECMlink V3. Less constant tweaking needed. You won't make enough extra power on a small turbo to be worth the hassle, IMO.

That said, ECMlink would help tons with tuning regardless of what type of air metering you run, whether small turbo or large. I would try to find a used V2 as they can be had just over $200 usually.



-Mark

A face only a grocery shopper could love.
1051


Edited by turbowop (01/08/13 02:57 PM)

Posts: 11937 | From: Yakima, WA | Member Since: 04/29/01 | IP: (71.92.106.100) | Report this post to a Moderator

5OF2k
Member ++
5/2000


Galant VR-4 org Post #: 1102159 posted 01/08/13 03:41 PM     Remind Me!  Send Private Message   Edit Post      
Personally, I've never had issues with DD'ing my car, which is SD tuned on AEM, and I drive upwards of 60miles a day... I never have to tweak it either, and the only times I've even connected it to a laptop were to log, and to check the idle parameters and cold-start parameters.... But thats just me I suppose....??

-Jake



1993 Talon TSI, FPgreen DD
1957 VW Beetle Sedan Deluxe
1997 Civic EX, B18c/5lug swapped
2002 Yamaha Fz-1
Looking for another GVR4, or 5/2000...PM!

Posts: 664 | From: colorado springs, colorado | Member Since: 03/28/12 | IP: (140.32.120.188) | Report this post to a Moderator

Happy Birthday matt92vr4
Member ++
474/1000


Galant VR-4 org Post #: 1102173 posted 01/08/13 04:28 PM     Remind Me!  Send Private Message   Edit Post      
That's interesting WOP, I have the exact opposite experience with SD builds. They always run great and put down about 15% more HP than MAF builds with the same goodies. I've only done 2 ECMLINK though, the rest of mine have been AEM and I had an AWD dyno so that may have helped a bit.



474/1000 Summit White
1993 Stealth RT/TT
1995 Montero SR
1998 Montero

Posts: 676 | From: Venice, FL | Member Since: 10/03/10 | IP: (68.34.158.83) | Report this post to a Moderator

turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1102198 posted 01/08/13 08:36 PM     Remind Me!  Send Private Message   Edit Post      
Don't get me wrong. I love SD. 1051 runs great with it and I'm sure DDing with it would be fine, but I constantly tinker with my VE map. Maybe I should have tried it on 503 before I sold it. All I needed was a IAT sensor since I already had a MAP and WB for logging. Either way, for the OP, I think that's a bit out there. Not only would he need V3, he would also need to invest in a MAP/IAT and get it all wired up. He already has a 2gMaf, so in my mind, it's better to get it running right with that before moving on.



-Mark

A face only a grocery shopper could love.
1051

Posts: 11937 | From: Yakima, WA | Member Since: 04/29/01 | IP: (71.92.106.100) | Report this post to a Moderator

Telecaster
Senior Member
1581/2000


Galant VR-4 org Post #: 1102423 posted 01/10/13 07:48 AM     Remind Me!  Send Private Message   Edit Post      
If your tuning V3 SD and have a wideband, just run it in open loop. It makes everything easier.


Edited by Telecaster (01/10/13 07:49 AM)

Posts: 573 | From: San Jose, CA or Philippines | Member Since: 02/26/02 | IP: (121.54.32.106) | Report this post to a Moderator

James
Does lots of head


Galant VR-4 org Post #: 1102424 posted 01/10/13 07:52 AM     Remind Me!  Send Private Message   Edit Post      
EPROM ordered with chip for 2gmaf 550cc injectors and ignore knock under 1psi



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (68.200.64.80) | Report this post to a Moderator

Happy Birthday matt92vr4
Member ++
474/1000


Galant VR-4 org Post #: 1102428 posted 01/10/13 09:08 AM     Remind Me!  Send Private Message   Edit Post      
Are you using the AFC Neo? I just remembered when they first came out they were all messed up. If you are using one from the original batch they can blow up your engine. I lost 3 engines from these POS's.



474/1000 Summit White
1993 Stealth RT/TT
1995 Montero SR
1998 Montero

Posts: 676 | From: Venice, FL | Member Since: 10/03/10 | IP: (68.34.158.83) | Report this post to a Moderator

James
Does lots of head


Galant VR-4 org Post #: 1102429 posted 01/10/13 09:16 AM     Remind Me!  Send Private Message   Edit Post      
safc2



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (68.200.64.80) | Report this post to a Moderator

Happy Birthday matt92vr4
Member ++
474/1000


Galant VR-4 org Post #: 1102450 posted 01/10/13 01:16 PM     Remind Me!  Send Private Message   Edit Post      
OK that's good.



474/1000 Summit White
1993 Stealth RT/TT
1995 Montero SR
1998 Montero

Posts: 676 | From: Venice, FL | Member Since: 10/03/10 | IP: (68.34.158.83) | Report this post to a Moderator

James
Does lots of head


Galant VR-4 org Post #: 1102757 posted 01/13/13 12:32 AM     Remind Me!  Send Private Message   Edit Post      
New ECU and chip is installed! Knock is all gone. Ran her up to redline with no problem

Fuel pump and AFPR are on the way also! Next paycheck is wideband and MBC.



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (68.200.64.80) | Report this post to a Moderator

LIV4PSI
dyslexic 1051
1501/2000


Galant VR-4 org Post #: 1102760 posted 01/13/13 01:13 AM     Remind Me!  Send Private Message   Edit Post      
So it was the SAFC after all, huh?



-Craig
1501 Build Thread


Posts: 1761 | From: O-H-I-O | Member Since: 11/24/11 | IP: (151.213.218.47) | Report this post to a Moderator

turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1102765 posted 01/13/13 03:26 AM     Remind Me!  Send Private Message   Edit Post      
Or it's the coding in the new chip. Maybe it has a smoothed out timing map, which is what gives 1g guys a lot of issues with knock, since it ramps up to like 24degrees at around 6k. I really don't think the SAFC was the issue. He wasn't making large enough changes to cause those kind of knock issues.



-Mark

A face only a grocery shopper could love.
1051

Posts: 11937 | From: Yakima, WA | Member Since: 04/29/01 | IP: (71.92.106.100) | Report this post to a Moderator

James
Does lots of head


Galant VR-4 org Post #: 1102772 posted 01/13/13 07:56 AM     Remind Me!  Send Private Message   Edit Post      
Yea I don't think it had anything to do with the SAFC. Actually I know it didn't because my first drive around I didn't have it zeroed out and everything was still gravy. The knock sensor is picking up SOMETHING that it shouldn't, the chip takes care of that so I'm good. For now ...

Also when doing some monthly checkups on the car I noticed my vac line from the wastegate to the Jpipe was split in half. That fixed 99% of my boost creeping.



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (68.200.64.80) | Report this post to a Moderator

LIV4PSI
dyslexic 1051
1501/2000


Galant VR-4 org Post #: 1102782 posted 01/13/13 09:47 AM     Remind Me!  Send Private Message   Edit Post      
I'm glad to hear you are getting everything all ironed out.



-Craig
1501 Build Thread


Posts: 1761 | From: O-H-I-O | Member Since: 11/24/11 | IP: (151.213.218.47) | Report this post to a Moderator

big_d
Newbie


Galant VR-4 org Post #: 1102785 posted 01/13/13 11:25 AM     Remind Me!  Send Private Message   Edit Post      
I burnt the chip and did the ECU work for James. I did in fact smooth out the timing map to take out the nasty 23+ degree peak around 5-6k that the 1g/gvr4's had..and went a little more conservative (closer mirroring the 2g timing map). With massaged fuel/timing maps, I think it will suit that 14b quite will. Any ECU/chip work you guys need, hit me up.


Edited by big_d (01/13/13 11:27 AM)

Posts: 9 | From: Columbus, IN | Member Since: 09/06/10 | IP: (68.51.67.129) | Report this post to a Moderator

James
Does lots of head


Galant VR-4 org Post #: 1102787 posted 01/13/13 12:24 PM     Remind Me!  Send Private Message   Edit Post      
Bid_d came through for me that's for sure. And it package showed up in 2days! The tracking number showed it wouldn't be here till tomorrow haha



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

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (166.147.123.16) | Report this post to a Moderator

Happy Birthday matt92vr4
Member ++
474/1000


Galant VR-4 org Post #: 1102827 posted 01/13/13 07:43 PM     Remind Me!  Send Private Message   Edit Post   
That's great news!



474/1000 Summit White
1993 Stealth RT/TT
1995 Montero SR
1998 Montero

Posts: 676 | From: Venice, FL | Member Since: 10/03/10 | IP: (68.56.153.38) | Report this post to a Moderator


Pages: 1 | 2
Previous thread Next thread

Extra information
0 registered and 8 anonymous users are browsing this forum.

Galant VR4.org Moderator:  curtis, steve, atc250r, jcgalntvr4-244, cheekychimp, jepherz, Rausch, toybreaker, iceman69510, pot, FlyingEagle 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 6761

Rate this thread


News & Events: News | Events
Galant VR-4: Newbies | General VR4 Discussions | Technical Discussions | How To and Info Archive
Marketplace: Parts For Sale | Cars For Sale | Good Guys | Bad Guys
Community: Members' Showcase

Contact Us | Privacy statement GalantVR-4.org

Generated in 0.234 seconds in which 0.151 seconds were spent on a total of 14 queries. Turbo powered.


Hertz's Galant VR-4 Page