MS1/Extra v2.2 FUEL ONLY, Running Hilborn stack injection, converted to Megasquirt. 8-26lb. injectors. It will start and idle, and I can drive it if I really finesse the throttle. Too much and it stumbles, bad. If I punch it and hold it down, it will completely die. I have tried modifying VE tables, increased accel enrichment, all to no avail. I have tried to attach my MSQ and Datalog.
All help is greatly appreciated!
Stumbles at tip in
Moderators: jsmcortina, muythaibxr
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Redneckrodshop
- MS/Extra Newbie
- Posts: 8
- Joined: Mon Jul 24, 2017 4:16 pm
Stumbles at tip in
305 SBC bored .030, stroked 1/4" for 334 cid in a '23 Ford T-bucket
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
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Redneckrodshop
- MS/Extra Newbie
- Posts: 8
- Joined: Mon Jul 24, 2017 4:16 pm
Re: Stumbles at tip in
UPDATE:
Just ordered LC-2 and controller. Supposed to be here within 4 days. Will install it, and run some datalogs to post then.
Just ordered LC-2 and controller. Supposed to be here within 4 days. Will install it, and run some datalogs to post then.
305 SBC bored .030, stroked 1/4" for 334 cid in a '23 Ford T-bucket
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
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Redneckrodshop
- MS/Extra Newbie
- Posts: 8
- Joined: Mon Jul 24, 2017 4:16 pm
Re: Stumbles at tip in
OK, I upgraded Tuner Studio, bought and installed a USB/Serial adapter and Innovate LC2 w/controller. Used the "Detect" button under "Communications" -"Settings" . It finds the MS-1. Start auto tune, drive the car, get a "OFFLINE" error. Detect again, nothing found. Change USB ports, several times, finally detects it and connects again. Will stay connected for 30 minutes while I am configuring things, but when I start it, it disconnects. Not immediately, but random times. Here are my MSQ and datalogs.
I am totally lost as to why this is doing this. I have tried every USB port on the laptop, and it will connect with all of them after a couple of "Detect" sessions, but they all go offline at random times.
I am totally lost as to why this is doing this. I have tried every USB port on the laptop, and it will connect with all of them after a couple of "Detect" sessions, but they all go offline at random times.
305 SBC bored .030, stroked 1/4" for 334 cid in a '23 Ford T-bucket
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
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Redneckrodshop
- MS/Extra Newbie
- Posts: 8
- Joined: Mon Jul 24, 2017 4:16 pm
Re: Stumbles at tip in
Ok, I am back to my original issue. Starts, idles, runs, but stumbles bad upon acceleration. This is being done on jackstands, no load. Posting my datalog and msq. On TunerStudio gauge view, the air fuel ration is under 10. I have gone into Tuning/ VE table 1 and leaned it out a ton, but doesn't seem to affect the A/F gauge. The gauge second needle is moving, I am assuming that is a function of the target AFR?
I really appreciate any help!
I really appreciate any help!
305 SBC bored .030, stroked 1/4" for 334 cid in a '23 Ford T-bucket
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
Crane Hyd Roller 509/528 lift, 284/292 dur
GM alum heads, milled for 10.25 c/r
Hilborn mechanical stack injection, I converted to electronic w/Megasquirt
Mallory Sprint Mag
MS1/Extra v2.2
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Matt Cramer
- Super MS/Extra'er
- Posts: 17507
- Joined: Thu Apr 16, 2009 8:08 pm
Re: Stumbles at tip in
This may be too much AE causing a lean reading - but just how big is the plenum? If it's less than double the engine displacement, I think you've got a kinked MAP hose.
I'm also seeing an occasional RPM spike issue.
I'm also seeing an occasional RPM spike issue.
Matt Cramer -1966 Dodge Dart slant six running on MS3X