Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: vinnietbird on November 13, 2015, 09:03:35 AM

Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 13, 2015, 09:03:35 AM
I'm taking the Sport to Dyno Day next Saturday the 21st.

What all can I do to optimize what I have by then?

Timing is at 16 degrees, and the car seems to run best there. I'll have to adjust the clutch cable a little bit. Check the spark plugs as well. Theyt should be fine. Fuel pressure is right at 39 to 40 psi.

 The rockers are adjusted one full turn (Scorpion 1.6 stud mount rockers). Should I only go half turn, or is it fine where it's at?
Title: Dyno Day coming up next Saturday...
Post by: Bob on November 13, 2015, 09:47:59 AM
I'd slap some fresh plugs in it if I was going, or at least check them.  Looks like your combo is maxed out buddy,  once you get your dyno and A/F I guess you'll see how well your mass air meter is doing or not doing.  Mass air meter and tune with chip or quarterhorse might be all thats left to do.
Title: Dyno Day coming up next Saturday...
Post by: thunderjet302 on November 13, 2015, 10:08:36 AM
New plugs and maybe 1/2 turn on the rockers would be it. I usually run 1/2 turn on roller rockers but if 1 full turn works for you leave it be. I'm going to guess you make 280 rwhp and around 300 rwtq, depending on what type of dyno you run on (Mustang,  DynoJet, etc).
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 13, 2015, 12:36:09 PM
The Autolite plugs are ony 8 weeks old. they are gapped to .050. Should I go less with the aluminum heads? NOS stock coil is on the car.

Would an MSD 6AL be any good?

 Is there any power difference to gain by going 1/2 turn over 1 turn for the rockers?

I'd like to have a tune done one day next year. My Mass Air meter is actually a stock 93 Cobra piece. Nothing fancy, along with a 70mm throttle body.

280 horse power sounds about right. I'd like to see more, but only one way to find out.....strap the car down.
Title: Dyno Day coming up next Saturday...
Post by: Bob on November 13, 2015, 01:08:32 PM
You use a 93 cobra eec than?
Title: Dyno Day coming up next Saturday...
Post by: Lightningbird on November 13, 2015, 03:30:24 PM
A 6al will make more power if you have one lying around, otherwise, I would leave it alone and clean the air filter. My car used to like fuel pressure at 45 psi vice the factory 39. It picked up about 10 hp by tuning in the fuel pressure. Butt dyno will not tell you, a day at the dyno will!
Title: Dyno Day coming up next Saturday...
Post by: Lightningbird on November 13, 2015, 03:31:34 PM
Btw, your rockers should be fine if it's not missing or running like .
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 13, 2015, 07:41:24 PM
Yes, I'm running the '93 Cobra EEC

I may try to bump the fuel pressure a tiny bit and play with it.

I don't have an A9L, but thought I'd ask.
Title: Dyno Day coming up next Saturday...
Post by: Bob on November 13, 2015, 09:14:20 PM
your better off with the 93 cobra meter and cobra EEC. I thought you was running a pro-m or something thats why I made the comment about possibly needing a better meter.  From my reading the factory stuff is pretty accurate.

I wouldn't do anything besides tune-up items (plugs, clean air filter),  keep timing and fuel pressure where you have it now and just get that first run in and see where the a/f ratio is and how it looks across the rpm range... and how much power it makes.
Title: Dyno Day coming up next Saturday...
Post by: thunderjet302 on November 14, 2015, 11:24:19 AM
If the plugs are 8 weeks old leave them alone. They are probably fine. Same thing with the rockers. If you have an adjustable fuel pressure regulator you can play with that but the EEC will eventually tune out any changes you make in fuel pressure. I would just leave it at the stock 39psi setting. You could play with timing as well. Try 12*, 14*, 16*, 18* and see which makes more power.

You should make more power with a tune. I'm really considering have mine tuned in the spring to try and maximize what I've got.
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 14, 2015, 11:33:55 AM
I want to have my tuned next year as well. Getting some other small things finished first.

My EEC and MAF are Genuine Ford Parts.

I have been wondering about my clutch cable. It feels spongy. I wonder if it's stretched a bit. It's adjustable and has been on for a couple of years. I have a new one in the garage. I'll install a firewall adjuster when I do the new booster and master cylinder. I'm going with the smaller housing Mustang piece. BUT, that has nothing to do with dyno day except clutch adjustment. I need to grab as well as it can.
Title: Dyno Day coming up next Saturday...
Post by: thunderjet302 on November 14, 2015, 12:39:46 PM
This is supposed to be one of the best adjustable clutch cables: http://www.maximummotorsports.com/Clutch-Cable-Quadrant-and-Firewall-Adjuster-Package-P385.aspx

I like Maximum Motorsports. They make really good stuff. It's not cheap but you get what you pay for.
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 14, 2015, 03:17:25 PM
I may grab the cable. I don't need the rest right now. Thanks for the link.

I just checked the plugs....apparently I had them at 0.45.............not .050 as I thought. They are at .050 now. They were all very clean.
Title: Dyno Day coming up next Saturday...
Post by: thunderjet302 on November 14, 2015, 04:20:58 PM
Quote from: vinnietbird;452257
I may grab the cable. I don't need the rest right now. Thanks for the link.

I just checked the plugs....apparently I had them at 0.45.............not .050 as I thought. They are at .050 now. They were all very clean.

Here's just the cable: http://www.maximummotorsports.com/MM-Clutch-Cable-Universal-Mustang-Ford-OEM-1982-04-P897.aspx

It's made in the USA too.
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 14, 2015, 06:41:16 PM
I like it...... I like it a lot.
Title: Dyno Day coming up next Saturday...
Post by: Bob on November 14, 2015, 07:32:28 PM
Quote from: thunderjet302;452254
This is supposed to be one of the best adjustable clutch cables: http://www.maximummotorsports.com/Clutch-Cable-Quadrant-and-Firewall-Adjuster-Package-P385.aspx

I like Maximum Motorsports. They make really good stuff. It's not cheap but you get what you pay for.


you beat me to it,  thats gonna be my next cable when I need it.

Do you know if that cable will work with BBK firewall adjuster and BBK quadrant?
Title: Dyno Day coming up next Saturday...
Post by: thunderjet302 on November 14, 2015, 08:03:21 PM
Quote from: Bob;452271
you beat me to it,  thats gonna be my next cable when I need it.

Do you know if that cable will work with BBK firewall adjuster and BBK quadrant?


Quote from: thunderjet302;452262
Here's just the cable: http://www.maximummotorsports.com/MM-Clutch-Cable-Universal-Mustang-Ford-OEM-1982-04-P897.aspx

It's made in the USA too.


The cable shown in the link should work. I'd call Maximum Motorsports to confirm though.
Title: Dyno Day coming up next Saturday...
Post by: Bob on November 14, 2015, 09:02:22 PM
Yeah I will, after spending an hour under there fighting with the booster I really don't feel like swapping the quadrant.

(sorry for the hijack vinny.. btw where are the results??!! left us hanging here :beatyoass:)
Title: Dyno Day coming up next Saturday...
Post by: TheFoeYouKnow on November 14, 2015, 10:11:56 PM
Quote from: Bob;452211
I'd slap some fresh plugs in it if I was going, or at least check them.  Looks like your combo is maxed out buddy,  once you get your dyno and A/F I guess you'll see how well your mass air meter is doing or not doing.  Mass air meter and tune with chip or quarterhorse might be all thats left to do.
I love my Quarterhorse
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 15, 2015, 10:31:14 AM
I posted above, the plugs were VERY clean. Just the slightest amount of carbon around the outer edge of the plug. That was about it. They were at .045.....i bumper them to .050. The car is running great, but I still think the clutch is slipping a wee bit. I'll adjust the cable either later today, or at some point prior to dyno day next Saturday.

As far as brakes, I can hear a vacuum sound when I hold the brakes down and turn the car off. Like a final amount of air....shhhhhhh......kind of sound. I will get a booster as soon as I can. I only need the booster, and bearings for the front rotors. I have the rest. I'd love to go to bigger brakes, but, funds just will not allow it at this time. It'll be a spring project next year. Larger front brakes (Fox Stang) and possible discs from an SN-95 for the rear, but redrilled for 4 lug so I don't have to worry about swapping wheels.
Title: Dyno Day coming up next Saturday...
Post by: Kitz Kat on November 15, 2015, 11:25:59 AM
Go with the stang booster. I'm sure you know that.
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 15, 2015, 04:30:21 PM
Yeah Kitz,, that's what I want to do. It's smaller, just as functional, and will allow a firewall adjuster to fit. I think mine is bad if I hear the vacuum sound from it. My booster and MC are 28 years old. Time to replace them. I'm almost there. One piece at a time. No hurry with winter coming. It'll all be done before the end of spring.
Title: Dyno Day coming up next Saturday...
Post by: thunderjet302 on November 17, 2015, 12:37:29 PM
When you replace the master cylinder get a NEW one. The reman ones are junk. Boosters are only available as reman units unfortunately. 

I'll be doing a new master cylinder and reman booster swap in the spring as well (using a Thunderbird/Cougar booster as I have an AOD). Like you after 28 years I think they need to be replaced.
Title: Dyno Day coming up next Saturday...
Post by: Bob on November 17, 2015, 02:08:29 PM
I got my mustang break booster last week at advanceauto,  I used a $40 off $100 online coupon and if you have american express they have $20 cash back on orders over $50 with advance auto.. nice deal good unit too works great.
Title: Dyno Day coming up next Saturday...
Post by: vinnietbird on November 17, 2015, 04:26:03 PM
I did get a new MC, the booster I found on Ebay is about $80.00 shipped. We'll see. I've found them cheaper.

Dyno Day was put on hold. The dyno has a burnt capacitor. It is being repaired and will be up and running in two or three weeks. Oh well...more time to get the Bird ready