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Gears and a tune

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Gears and a tune

Post by mustang302fan on 12/29/2011, 7:02 am

So I've found the itch to start working on my '88 again. Recently my dad and i put some 4:30 gears in the car which turned out to really suck so I'd like to put the 3:73's back in it. We did this up in Wichita, KS where the car was, but its since migrated down here and I don't really want to drive it back up there to do the swap. Do you all have any recommendations as to where i can get them swapped at, and about how much $$ it will cost?

Also, since I've done all the motor work to the car I've never had it tuned and I think it needs it pretty badly. I know it runs rich (practically pours gas out the pipes) and doesn't really seem to make the power it should. Any suggestions on where to get a tune?
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Re: Gears and a tune

Post by 07Shelby500 on 12/29/2011, 9:17 am

Go by and see Kurtis at archangel Motorsports. He can take care of both for you.

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Re: Gears and a tune

Post by Evenflow Solutions on 12/30/2011, 7:08 pm

If its not mass air swapped that will be the major problem with running rich. Speed Density doens't like to play well with cam changes due to vacuum changes.
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Re: Gears and a tune

Post by 07Shelby500 on 12/30/2011, 11:21 pm

Can you give a list of your current combination/mods list. Tons of old school fox guys including myself that might be able to help figure it out.

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Re: Gears and a tune

Post by mustang302fan on 1/4/2012, 10:22 pm

Sorry for taking so long to get back with you guys, been without internet for several days.

Car has been swapped to mass air

Mods:

Trickflow top end kit (twisted wedge heads, stage 1 cam, and street heat intake)
75 or 80 mm throttle body
30 lb/hr fuel injectors
255 ltr/hr fuel pump
1 5/8" shorty headers, off-road h-pipe, 40 series flow masters
tko 600 trans
4:30 gears

I'm sure I'm missed about 100 other small items. You name it, the cars got it (almost)

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Re: Gears and a tune

Post by 07Shelby500 on 1/5/2012, 8:55 am

How much timing and fuel pressure are you running? And def the 4:30 gears are too steep. What is the powerband with that cam? What size rockers? Stock lower end? If not compression ratio?

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Re: Gears and a tune

Post by mustang302fan on 1/5/2012, 3:41 pm

Alright i looked in my little note pad and i wrote 18* timing back in 2007. I'm gonna say its still at that. Fuel pressure, i gotta wait for the battery to charge and i can get back with you on that. The cam kicks in right around 3K. Pulls like a champ from there. Rockers are 1.7's and the car received a new FMS short block which should be at stock specs.
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Re: Gears and a tune

Post by mustang302fan on 1/5/2012, 5:11 pm

Alright, got the car started. To my surprise the car had the factory fuel pressure regulator, then i remembered i could never the adjustable one to not self adjust it self. According to my gauge, the car at idle with the vacuum line on was running 45 psi.
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Re: Gears and a tune

Post by 07Shelby500 on 1/5/2012, 5:40 pm

That pressure might be a little high with the 30lb injectors. the timing might be a little high as well. Typically 14-15 deg btdc is about all they can take on pump gas. But I always bring it up from 10 deg in 2 deg increments until it pings then back off by 2 deg for NA cars.

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Re: Gears and a tune

Post by Bad5.0 on 1/11/2012, 10:06 pm

try 40psi with 15* timing, should run better.
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Re: Gears and a tune

Post by mustang302fan on 2/6/2012, 4:11 pm

Is Archangel at 1371 N. 108th? Seems to be an RV place when i look it up
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Re: Gears and a tune

Post by Supersnake on 2/6/2012, 5:41 pm

mustang302fan wrote:Is Archangel at 1371 N. 108th? Seems to be an RV place when i look it up

918-437-7729. I believe that's the right address. Just off 169 at the Pine street exit
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Re: Gears and a tune

Post by mustang302fan on 2/6/2012, 6:17 pm

I found it, decided I'd take a drive and if it was wrong I at least got to enjoy the weather. Really liked what he had to say. Gear swap no problem, dyno tune is def getting done as well.
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Re: Gears and a tune

Post by 07Shelby500 on 2/6/2012, 8:03 pm

Good to hear Nolan.

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