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New Guy and 1990 GT build up

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Old 11-07-2014, 03:55 PM   #81
JBeachstang11
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Originally Posted by mjr46 View Post
see if it no longer runs lean at idle and report back...........my FP is good, I have a hood mount FP gauge and twin fuel pumps, 1 intank and one inline AFM big pump
Still running lean at idle, 22ish.. but drops to 13/14/15 when I blip the throttle. So thinking still the cam possibly.

Problem is it that cruising around it seems way lean 18-20ish even when I'm gassin it in 3rd going 40 or so. I even increased the MAF to the ProM 24# specs (1233kg at top)

Also when I'm giving it some decent throttle at cruising speeds with a decent load it starts to sputter out like it's missing. Did find #1 sparkplug boot laid down on the header and melted so could have caused the misfire/sputter.

Using decipha A9L2 calibration with my data entered.
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..

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Old 11-07-2014, 04:28 PM   #82
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Still running lean at idle, 22ish.. but drops to 13/14/15 when I blip the throttle. So thinking still the cam possibly.

Problem is it that cruising around it seems way lean 18-20ish even when I'm gassin it in 3rd going 40 or so. I even increased the MAF to the ProM 24# specs (1233kg at top)

Also when I'm giving it some decent throttle at cruising speeds with a decent load it starts to sputter out like it's missing. Did find #1 sparkplug boot laid down on the header and melted so could have caused the misfire/sputter.

Using decipha A9L2 calibration with my data entered.
seems like what mine is doing and I'm running an a9l cal as well.....gonna try and check mine out when I get home tonight....got my break out box from work, or may just back probe if I can get to it easy enough
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Old 11-07-2014, 06:35 PM   #83
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seems like what mine is doing and I'm running an a9l cal as well.....gonna try and check mine out when I get home tonight....got my break out box from work, or may just back probe if I can get to it easy enough
Hope to do my cobra brake/5 lug swap tomorrow then nail down this lean issue.

Be interested to hear your progress also.
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..
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Old 11-08-2014, 09:35 AM   #84
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Here's the car with the Borla Pro XS mufflers in and LX style tailpipes. Bit more subdued than the 2 Chamber Flows but still loud..

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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..
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Old 11-10-2014, 08:29 PM   #85
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update........had a chance this weekend to install wiring for future a/f gauge on a friends s/c 88 with tfs 1 cam and when tapping into pin 43 and 29 the sig feed for o/2's at idle his was way lean as well .010-.033 reading and when you blip the throttle then the o2's read .600-.800 vdc where it should. Also, did mine as well tonight, same result 18-21 afr on wideband and tapping in on pin 29 and 43 confirm lean reading at idle......o2's read .010-.022 and blipping the throttle afr goes down to 13-14 and and o2's on the multimeter register .700-.800. So, here's what I may do, move the wideband as a test back to the tailpipe and read the a/f there, doubt it'll change.......we're thinking it could be camshaft overlap causing the lean reading.....car runs fine and drives well, just a meter ghost we're chasing..lol I'm not to concerned as it won't cause a prob, more so the WOT a/f is the thing to pay attention to more so since it's boosted. I'm gonna talk to a very knowlegable tuner this week and probe his thoughts on our findings.
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Old 11-10-2014, 09:27 PM   #86
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Quote:
Originally Posted by mjr46 View Post
update........had a chance this weekend to install wiring for future a/f gauge on a friends s/c 88 with tfs 1 cam and when tapping into pin 43 and 29 the sig feed for o/2's at idle his was way lean as well .010-.033 reading and when you blip the throttle then the o2's read .600-.800 vdc where it should. Also, did mine as well tonight, same result 18-21 afr on wideband and tapping in on pin 29 and 43 confirm lean reading at idle......o2's read .010-.022 and blipping the throttle afr goes down to 13-14 and and o2's on the multimeter register .700-.800. So, here's what I may do, move the wideband as a test back to the tailpipe and read the a/f there, doubt it'll change.......we're thinking it could be camshaft overlap causing the lean reading.....car runs fine and drives well, just a meter ghost we're chasing..lol I'm not to concerned as it won't cause a prob, more so the WOT a/f is the thing to pay attention to more so since it's boosted. I'm gonna talk to a very knowlegable tuner this week and probe his thoughts on our findings.
Man that's great info. I need to backprobe mine just like that but still deep in my cobra brake swap. Once through that I'll check my 02's at the comp like you did. My innovate WB instructions mentioned something about camshaft overlap at idle and possibly reading lean. I'm still getting used to the voltage readings vs AFR numbers. Definitely more concerned with the WOT and part throttle numbers too.
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..
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Old 11-10-2014, 11:49 PM   #87
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Man that's great info. I need to backprobe mine just like that but still deep in my cobra brake swap. Once through that I'll check my 02's at the comp like you did. My innovate WB instructions mentioned something about camshaft overlap at idle and possibly reading lean. I'm still getting used to the voltage readings vs AFR numbers. Definitely more concerned with the WOT and part throttle numbers too.
takes a few seconds, pull computer out of the kick panel, use a small paper clip and insert it into the connection where it goes into the connector at the back, pull the black protective cover off that covers the wires at the connector, make sure car is warmed up and any good os will range from around .1 vdec to 1.0 vdc, low voltage = lean, high = rich
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Old 11-11-2014, 06:57 AM   #88
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takes a few seconds, pull computer out of the kick panel, use a small paper clip and insert it into the connection where it goes into the connector at the back, pull the black protective cover off that covers the wires at the connector, make sure car is warmed up and any good os will range from around .1 vdec to 1.0 vdc, low voltage = lean, high = rich
Awesome, thank you. I have all the pin out diagrams as well so locating the wires shouldn't be an issue. Will be interesting to see if there is a difference between the meters and the readouts in the BE dashboard. Not loving that Binary Editor program much at this point.
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..
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Old 11-13-2014, 10:22 PM   #89
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Mostly done with my Cobra 5 lug swap, just have the hard lines/adj prop valve and MM stainless lines up front. Rears are just 5 lug drums for now..

Also just found out my car has a 1984 Capri T5 13-52-065 in it.. Great, so I'm hunting a WC T5 to rebuild and swap in.
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..
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Old 11-14-2014, 12:01 AM   #90
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Mostly done with my Cobra 5 lug swap, just have the hard lines/adj prop valve and MM stainless lines up front. Rears are just 5 lug drums for now..

Also just found out my car has a 1984 Capri T5 13-52-065 in it.. Great, so I'm hunting a WC T5 to rebuild and swap in.
wanna buy a tremec 3550..lol, I'm gonna yank mine in the near future in favor of an A5 BUILD.......astro performance ftw!!!
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Old 11-14-2014, 07:17 AM   #91
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wanna buy a tremec 3550..lol, I'm gonna yank mine in the near future in favor of an A5 BUILD.......astro performance ftw!!!
Cool man!

Sure PM me about it. Thanks.

edit: Just noticed you're in WV, never mind lol..
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..

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Old 11-14-2014, 11:07 AM   #92
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Cool man!

Sure PM me about it. Thanks.

edit: Just noticed you're in WV, never mind lol..
no problem, it's not coming out for a while, no time......spend it all on customers rides..lol
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Old 11-22-2014, 09:07 AM   #93
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Alright, little update here.

- I made my starter grind/screech much better by forcing the starter towards the flywheel as I tightened the bolts. Makes a case for slottin the holes a small amount.

The car starts right up and will have the textbook surge for a couple mins so I have to hold the revs just around 1200-1500 with the throttle then it will idle fine. Almost like it passes a certain timeframe, 2mins or so, then will play nice.

The Borlas are awesome by the way.

Now driving is pretty good. I'm still not giving it WOT since I'm still <50mi on new engine.

Only issues are after revving 1st gear out (3.73) medium load 4500rpm then shifting into 2nd same load I will get a something like a miss. I just don't know if it is spark or fuel related.

Then nailing the brakes to bed in my pads sometimes the car would stall, that was with the a/c on though (which is working lovely ) - so the car not being dialed in that well coupled with a/c load..

I have the bottom few rows on my MAF table calibrated for the ProM 19# MAF to counter an overly rich idle, and then after that once rpm increases I have used the ProM24# table up to the 15.999v top

HEGOS are generally reading .5-.8 both sides while my WB still reads lean at times.

My ECT and ACT is still reading constant (20 and 100) in Bin Ed 2012 when I'm logging. Anyone have an idea on how to chase that? Don't those use the same lead in the harness?
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..

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Old 03-23-2015, 08:55 AM   #94
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Upate: Clocked the MAF to 6pm position and seemed to eliminate the surging and the 3000+rpm misfire. Car is very streetable so I am swapping out my 96cobras for some 17x9 03 cobras with 275 tires. Post a pic once swapped.

Latest run after MAF reclocking..
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..

Last edited by JBeachstang11; 03-23-2015 at 09:09 AM.
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Old 03-24-2015, 07:22 AM   #95
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I didn't get to watch the whole vid, or crank the volume as I'm at work. But sounded great to me, can't wait for spring.

Congrats
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306 with all bolt ons, letter cam, ported E7's, T5 swap, full exhaust, 3:55's, 2" drop, and the worst paint you'll ever see or feel.
Dyno'd 300/316, 2745lbs-track scale
Best ET………12.4@108, 1.66 60ft on 8" ET Drags.
24 mpg (combined)
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Old 03-24-2015, 07:28 AM   #96
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I didn't get to watch the whole vid, or crank the volume as I'm at work. But sounded great to me, can't wait for spring.

Congrats
Thanks peel. Needs a little more drop up front. My strut brace is pushing my hood up at the moment.
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..
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Old 03-25-2015, 12:45 PM   #97
88 orangepeel notch
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First, I'd save up so you can afford all 4 of the same rims lol.

Seriously though, looks great...
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306 with all bolt ons, letter cam, ported E7's, T5 swap, full exhaust, 3:55's, 2" drop, and the worst paint you'll ever see or feel.
Dyno'd 300/316, 2745lbs-track scale
Best ET………12.4@108, 1.66 60ft on 8" ET Drags.
24 mpg (combined)
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Old 03-25-2015, 01:07 PM   #98
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First, I'd save up so you can afford all 4 of the same rims lol.

Seriously though, looks great...
Hahaha! All 4 are 03 Cobras, just different side.. e

That would be pretty ghetto.....

Thanks man, reading through some of your threads, 5 spd swap thread
actually
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1990 GT 5spd

311ci Edel 6025 2.02 heads, Comp XE274HR, Comp 1.6 RR, Tubular GT40 upper, ported lower, 24# Inj, 70mm BBK TB/EGR, ProM75mm MAF A9L reman ECM, BBK Shortys, Hpipe etc..,

Eibach sport springs and KYB shocks/struts..
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Old 03-25-2015, 01:07 PM
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