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Topic: Mass Air added, hesitation off the line (Read 7729 times) previous topic - next topic

Mass Air added, hesitation off the line

Reply #30
C&L is a top shelf MAF.  It's what I'm running.  When I moved from a 30# stock airbox calibrated sample tube to a custom tune, I just called them and asked for the best sample tube for stock 19# injectors and the MAF transfer function table to use with it.  They were most helpful.
For me, the biggest problem in running a calibrated MAF was that I had GT40P heads, which have small chambers and strange burn characteristics, combined with KB domes.  My compression ratio is 10.9:1  It might have been more friendly if I had better heads.  Or even non-P GT40's.

Mass Air added, hesitation off the line

Reply #31
with the bend and the filter inside the fender well, like the pic you posted on the right.....
88 sport,TW heads, comp xe270hr, cobra u/Tmoss ported lower, 65 mm throttle body, under drives,smog delete,
1.7 roller rockers, cai, k&n, bbk adj regulator, 76mm Pro-m,all MSD ign. MSD dist,18° base timing, 3g alt.1 5/8 ceramic headers, 255lph walbro, 2.5" h-pipe, flowmasters, silverfox valvebody, 3.73 gear,
http://i216.photobucket.com/albums/cc154/flipnbird/DSCF0185.jpg ( RIP : ( )


Mass Air added, hesitation off the line

Reply #33
mason did up some vht hi temp "textured" valve cover paint,, it looks really good.  hope its not a dust collector!

Mass Air added, hesitation off the line

Reply #34
MK8 Maf has been off to the side as a spare part in my bins,
used Flipnbird's maf & the MK8 injectors.  both MK8 injectors and Flipnbirds were the same resistance,, 13.6ohms.
Using flipnbirds upper/lower on my other son's 331 build.

used the PP Upper / Lower on mason's bird since runner area was larger + positive writing from fordmuscle testing out the pp to the cobra and picking up better 1/8 mile time slips.
mason's bird is a simple 030 over block, old explorer iron heads with some work, so nothing special for power other than HO stuff.
he has a track lock 2.73 out back and wants something 373 or even 410,, im saying 355 or even 327 would be a much better choice and streetable.

after several test hits using vinnie's A9P like reman EEC and one of the few A9L's i have,, Mason picked the a9p but the differences were so tiny its not noticeable.

from what i am reading, and what mason needs to learn up on is unlocking any more horses by a tune if he wants to get into all that.

We are fine now, got windows on thier tracks and re-glued, got window up/down switch socket replaced, cleaned out interior of doors down in the seam, got rear shocks on, oil and coolant changed, got center console lid changed out, chopped off tail pipes after the axle hump to pound exhaust directly to the ground.

seems like all is well.  from what i am reading here, seems like we dont really know if "all is well" in reality until he looks at the tables / tune.
we are doing about 13deg of timing right now,, not sure if we should or would want to do any more.

we need to adapt the KN conical filter "straight" to the maf, right now using the stock airbox with square filter.  this may happen today.

later today we are finally getting my cougar running from last Christmas deer hit.

Mass Air added, hesitation off the line

Reply #35
these little buggers seem to be holding up really well, a tad tiny bit noisy but doing well.
his motor has prob 60k on it by now since i built it.

summit said we could use 1.7's on an HO cam or even an E cam,, i wasnt too sure i wanted to agree with that not really knowing the valve float conditions i may find later.
valve reliefs on our pistons are very generous though.

Mass Air added, hesitation off the line

Reply #36
forgot to mention, had to home make some valve cover gaskets,, no one had those fancy ford explorer metal ones on hand so 3/16'' gasket material did wonders.

up in that post with the valve cover paint you can see the brand new replacement gasket slipping out.  we demo'd the covers back out and traded in for hand made ones.

i keep telling mason not to use silicone on "both sides of the VC gasket,, he just needs to live and learn.  i re-bevel the valve cover holes, then either not use silicone or i will silicone the gasket to the cover only.

Mass Air added, hesitation off the line

Reply #37
Quote from: flipnbird;462284
with the bend and the filter inside the fender well, like the pic you posted on the right.....

Jcassity leave the stock airbox and filter in place. The MAF you have works either with the stock airbox or a cold air intake. Do not clamp a conical filter to the end of the MAF. It is not designed to run that way.

Thanks for the clarification flipnbird!
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Mass Air added, hesitation off the line

Reply #38
That PP intake you are running is a knock off of the Edelbrock Performer RPM intake I have. You're really going to want at least 3.73 gears with it, especially with an AOD. With 3.73s and a non-lockup torque converter the engine in my car spins 2300rpm at 70 mph. With a lockup converter engine rpm at 70 mph will probably be a hundred or so rpm less.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Mass Air added, hesitation off the line

Reply #39
Quote from: TheFoeYouKnow;462271
C&L is a top shelf MAF.  It's what I'm running.  When I moved from a 30# stock airbox calibrated sample tube to a custom tune, I just called them and asked for the best sample tube for stock 19# injectors and the MAF transfer function table to use with it.  They were most helpful.
For me, the biggest problem in running a calibrated MAF was that I had GT40P heads, which have small chambers and strange burn characteristics, combined with KB domes.  My compression ratio is 10.9:1  It might have been more friendly if I had better heads.  Or even non-P GT40's.

I believe the combo plays a role in how well a calibrated MAF works without a tune. My engine has around 9.5:1 compression. So with 16° base timing and 93 octane fuel it's plenty in the "safe" zone.

That being said next year I'm buying an 80mm Pro-M MAF and having the car dyno tuned. I'm finally done screwing with this engine so I'm getting it dialed in.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Mass Air added, hesitation off the line

Reply #40
Quote from: thunderjet302;462293
That PP intake you are running is a knock off of the Edelbrock Performer RPM intake I have. You're really going to want at least 3.73 gears with it, especially with an AOD. With 3.73s and a non-lockup torque converter the engine in my car spins 2300rpm at 70 mph. With a lockup converter engine rpm at 70 mph will probably be a hundred or so rpm less.

You make an excellent point regarding a car with overdrive. The SBF 5.0 is no torque monster in stock form. Typical modifications often shift both HP and torque higher up in the RPM range. Insufficient gearing can cause hunting between gears even at the hint of a grade or hill.

Ford did not seem to understand this back in the 80's & 90's or else they were trying to squeeze the last bit of MPG out of the fleet to meet government standards. I owned a 95 F150 5.0 4x4 EFI that was an absolute pig in OD with the stock (3.34 or close) rear end ratio. It would hunt between overdrive and third gear if the wind shifted. The truck needed 3.73's or 4.11's to drive properly. The fuel mileage was bad and on par with my 8.1L/Allison BBC in my 2500HD.
1986 Thunderbird Elan 5.0 EFI AOD, 3.73:1 SN95 rear, 17" Mustang Bullitts w/Firestone WO Indy 500's. Future plan: 349 stroker, C9 block, forged dish pistons, Scat 9000 crank, 4340 I beam rods, ARP head/main studs, ported explorer intake, 1.72 CC RR, Vortech V2 supercharger, Mr. Freeze Meth Inj, intercooler, TFS 190 11R CNC heads (66CC), BBK shorties with 2.5" duals, 4R70W Transmission, Taurus fan.

Mass Air added, hesitation off the line

Reply #41
Quote from: rotorr22;462296
The SBF 5.0 is no torque monster in stock form.


Actually, the HO is decent on torque, for the time and the technology of the day ('87-95), it's the rear gear and the transmission and it's less than stellar torque convertor that made stock AOD Stangs gutless pigs. Get one with a T5 and there was a good bt more "git up n' go".
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)

Mass Air added, hesitation off the line

Reply #42
Quote from: ThunderbirdSport302;462299
Actually, the HO is decent on torque, for the time and the technology of the day ('87-95), it's the rear gear and the transmission and it's less than stellar torque convertor that made stock AOD Stangs gutless pigs. Get one with a T5 and there was a good bt more "git up n' go".

My stock 5.0/AOD's "git up and go" got up and went.
1986 Thunderbird Elan 5.0 EFI AOD, 3.73:1 SN95 rear, 17" Mustang Bullitts w/Firestone WO Indy 500's. Future plan: 349 stroker, C9 block, forged dish pistons, Scat 9000 crank, 4340 I beam rods, ARP head/main studs, ported explorer intake, 1.72 CC RR, Vortech V2 supercharger, Mr. Freeze Meth Inj, intercooler, TFS 190 11R CNC heads (66CC), BBK shorties with 2.5" duals, 4R70W Transmission, Taurus fan.

Mass Air added, hesitation off the line

Reply #43
Quote from: rotorr22;462301
My stock 5.0/AOD's "git up and go" got up and went.

That's because your stock 5.0 made less power, new, than my wife's 4 cylinder Fusion.  I would dare to say that the stock non-HO 5.0 didn't come equipped with "git up and go".

Mass Air added, hesitation off the line

Reply #44
Yeah, I think there's clearly some lack of understanding that there's HP/torque differences between the Tbird 5.0 and that of the Mustang. It's obvious that Scott, Mason, and Chance have at least HO engines with upgrades in their project cars, so throwing disinformation around is, well, unwarranted.
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)