Dyno results

[795.0pacecar]

Here are the dyno results from today. Im content, it put down what I thought it would which isn't bad considering the mileage, collapsed lifters, and the only real mod being full exhaust.
Tomorrow I will be tearing down the motor to install thumper heads, new lifters, 1.7 RRs, trick flow track heat intake, 65mm TB, and a fuel pressure regulator.

Sorry for the crappyness of the pic, my scanner hates me for some reason.
http://img284.imageshack.us/img284/9857/pict03096sn.th.jpg (http://img284.imageshack.us/my.php?image=pict03096sn.jpg)

[anthonydalrymple]

Great torque numbers.... It's always nice to have a baseline to compare to "after mod's" or "fresh motor".... ;)

[795.0pacecar]

Last time I had it on the dyno it made 200hp and 265tq, since then I swapped over to a manual, put a new magnaflow catback with 2.5" pipes on it instead of the hacked together one I had with 2.25" pipes, and I put BBK shorties on it. Also I put a CAI but I dont realy believe those are worth much, espcially on the fuel injected 5.0 cars, they just look nice.

I picked up 20 rwhp across the board.

[Hissing Cobra]

Your numbers look good for an engine with little modification. Keep us posted on your new parts and post up the dyno results when you're done.

[Capri50]

Looks good. Any plans for a blower down the road? There's something you wouldn't see every day, a 79 Pace car w/ a blown EFI setup. :)

[795.0pacecar]

Maybe.... Im about 3/4 done with th head and intake swap. Still have to hook up sensors, bolt down the upper intake, and put the distributor back in. Then I have to hope that the driver side bank of the engine doesn't blow a head gasket. Believe it or not when I pulled the 3rd head bolt down by the headers it was snapped off in the block from the factory, there was enough threads for the upper portion of the break to still hold. Well we drilled the snapped bolt and put an EZ-out in it which was a bad idea. The EZ-out broke off in the bolt, so my dad hammered the rest of the ez-out down into the hole he drilled in the bolt. So we decided to try to use the rest of the old bolt but it ended up pulling the threads out of the block. So the head only has 7 bolts holding it on now, we tourqed the bolts around it quite a bit more then spec in hopes that it might hold. If it blows the gasket Im going to either pull the engine and fight with it and rebuild it, or buy a new shortblock. Part of me hopes it holds because its going to suck to pull everything back apart and spend more money, and part of me hopes it doesn't hold because the engine could probably use a rebuild.

[795.0pacecar]

Change of plans

The upper and lower mating surfaces of the intake manifold are warped so tomorrow they are going out to the machine shop to be resurfaced. Since I already had the intake manifold off, we decided to pull the head and use a die grinder to grind out the EZ-out, now we are trying to find an angle drill to drill out the hole so we can put a heli-coil in.

Hopefully everything will be done by the end of this week.

[795.0pacecar]

Update if anyone cares. The intake wasn't warped , the throttle cable bracket was hitting the valve cover, so I made a spacer for the braket and everything bolts down fine now. Got the heads on and everything. Started the car up and it ran like crap, so I set the fuel pressure at 44psi, adjusted the tps, and set the timing to 10 degrees advanced. Its running real good now. The problem Im having though is Im pretty sure the thermostate is stuck open, I drove about 4 miles and the temp never got above 120 degrees, after a while it started searching for idle and Im thinking that might be because it was stuck in cold start up mode. I reused the 180 I had in there before because my dad bought a 190 and I didn't want to downgrade to the 190 considering my engine could use alittle extra cooling ability due to the increas in power production. As soon as I get up in the afternoon Im going to put the 190 in it. I have a 3 core radiator so It will probably be fine.

With all the mods the car feels real strong. Im going to give it a good 30-40 mile break in before I realy get into it, but since I couldn't resist, I did run it up to 3rd pretty good, I shifted at 4200 and the car spun through 1st, 2nd, and the very first part of 3rd. Before the mods it would only spin through 1st and half of 2nd shifting at 5800.

[795.0pacecar]

Update if anyone cares. The intake wasn't warped , the throttle cable bracket was hitting the valve cover, so I made a spacer for the braket and everything bolts down fine now. Got the heads on and everything. Started the car up and it ran like crap, so I set the fuel pressure at 44psi, adjusted the tps, and set the timing to 10 degrees advanced. Its running real good now. The problem Im having though is Im pretty sure the thermostate is stuck open, I drove about 4 miles and the temp never got above 120 degrees, after a while it started searching for idle and Im thinking that might be because it was stuck in cold start up mode. I reused the 180 I had in there before because my dad bought a 190 and I didn't want to downgrade to the 190 considering my engine could use alittle extra cooling ability due to the increas in power production. As soon as I get up in the afternoon Im going to put the 190 in it. I have a 3 core radiator so It will probably be fine.

With all the mods the car feels real strong. Im going to give it a good 30-40 mile break in before I realy get into it, but since I couldn't resist, I did run it up to 3rd pretty good, I shifted at 4200 and the car spun through 1st, 2nd, and the very first part of 3rd. Before the mods it would only spin through 1st and half of 2nd shifting at 5800.

[Hissing Cobra]

That's cool! Keep us updated. :D

[Hissing Cobra]

That's cool! Keep us updated. :D

[795.0pacecar]

Fixed the thermostate at 4am, took me 20 min. Its amazing how much faster you can do something once you've done it before. Like after I tore down the engine for the 2nd time, it took me less than an hour and the day before it took me 4 hours.

Well heres a pic of it pretty much finished. You'll have to excuse how dirty everyhting is, its a 26 year old car and I just havn't had time to get it cleaned up yet, I've been more focused on getting it running.
http://img.photobucket.com/albums/v625/Steve79stang/0001df95.jpg

Heres a pic of an intake and exhaust port on the heads in case anyone was wondering what they looked like.
intake http://img.photobucket.com/albums/v625/Steve79stang/d4811638.jpg
exhaust http://img.photobucket.com/albums/v625/Steve79stang/d84a1b36.jpg

[795.0pacecar]

Fixed the thermostate at 4am, took me 20 min. Its amazing how much faster you can do something once you've done it before. Like after I tore down the engine for the 2nd time, it took me less than an hour and the day before it took me 4 hours.

Well heres a pic of it pretty much finished. You'll have to excuse how dirty everyhting is, its a 26 year old car and I just havn't had time to get it cleaned up yet, I've been more focused on getting it running.
http://img.photobucket.com/albums/v625/Steve79stang/0001df95.jpg

Heres a pic of an intake and exhaust port on the heads in case anyone was wondering what they looked like.
intake http://img.photobucket.com/albums/v625/Steve79stang/d4811638.jpg
exhaust http://img.photobucket.com/albums/v625/Steve79stang/d84a1b36.jpg

[Capri50]

glad to see you got it running. sometimes it's a pain having to tear it back apart, but it all worked out in the end which is great. We've got something in common since neither of our cars came with SEFI. I swapped over in 1998 and been enjoying it ever since.

that intake sure looks familar. 8)

http://www.foureyedpride.com/phpBB2/album_pic.php?pic_id=2906

[Capri50]

glad to see you got it running. sometimes it's a pain having to tear it back apart, but it all worked out in the end which is great. We've got something in common since neither of our cars came with SEFI. I swapped over in 1998 and been enjoying it ever since.

that intake sure looks familar. 8)

http://www.foureyedpride.com/phpBB2/album_pic.php?pic_id=2906

[795.0pacecar]

glad to see you got it running. sometimes it's a pain having to tear it back apart, but it all worked out in the end which is great. We've got something in common since neither of our cars came with SEFI. I swapped over in 1998 and been enjoying it ever since.

that intake sure looks familar. 8)

http://www.foureyedpride.com/phpBB2/album_pic.php?pic_id=2906

This kind of makes me feel bad for V8only, he's doing pretty much the same mods as me and he cant get his car running well, while my car didn't even come with fuel injection and its running pretty good.


A problem I may be having right now is the engine likes to search for idle. It will search for a minute then level out, then search, and so on. Im wondering if this is just something Im going to have to live with since this is an untuned stock speed density system, or if its maybe a deeper problem. I dont think its the AIC since its only a year or 2 old, and the TPS is brand new and the voltage is at .99-.98.

Also I was wondering what people with similar mods keep their fuel pressure set at? I have it at 44psi with the vacuum unpluged. Im guessing the car makes between 260 and 280 rwhp. Im going to the dyno thursday but if I want an O2 reading they charge an arm and a leg and drill a hole in my exhaust to put a wide band O2 sensor in it, and Im not doing that. Maybe I'll try to find a dyno that just sticks the sensor in the tail pipe, its not as accurate but it should give me a good idea.

[795.0pacecar]

glad to see you got it running. sometimes it's a pain having to tear it back apart, but it all worked out in the end which is great. We've got something in common since neither of our cars came with SEFI. I swapped over in 1998 and been enjoying it ever since.

that intake sure looks familar. 8)

http://www.foureyedpride.com/phpBB2/album_pic.php?pic_id=2906

This kind of makes me feel bad for V8only, he's doing pretty much the same mods as me and he cant get his car running well, while my car didn't even come with fuel injection and its running pretty good.


A problem I may be having right now is the engine likes to search for idle. It will search for a minute then level out, then search, and so on. Im wondering if this is just something Im going to have to live with since this is an untuned stock speed density system, or if its maybe a deeper problem. I dont think its the AIC since its only a year or 2 old, and the TPS is brand new and the voltage is at .99-.98.

Also I was wondering what people with similar mods keep their fuel pressure set at? I have it at 44psi with the vacuum unpluged. Im guessing the car makes between 260 and 280 rwhp. Im going to the dyno thursday but if I want an O2 reading they charge an arm and a leg and drill a hole in my exhaust to put a wide band O2 sensor in it, and Im not doing that. Maybe I'll try to find a dyno that just sticks the sensor in the tail pipe, its not as accurate but it should give me a good idea.

[anthonydalrymple]

[quote=Capri50]

1) This kind of makes me feel bad for V8only, he's doing pretty much the same mods as me and he cant get his car running well, while my car didn't even come with fuel injection and its running pretty good.


2) A problem I may be having right now is the engine likes to search for idle. It will search for a minute then level out, then search, and so on. Im wondering if this is just something Im going to have to live with since this is an untuned stock speed density system, or if its maybe a deeper problem. I dont think its the AIC since its only a year or 2 old, and the TPS is brand new and the voltage is at .99-.98.

3) Also I was wondering what people with similar mods keep their fuel pressure set at? I have it at 44psi with the vacuum unpluged. Im guessing the car makes between 260 and 280 rwhp. Im going to the dyno thursday but if I want an O2 reading they charge an arm and a leg and drill a hole in my exhaust to put a wide band O2 sensor in it, and Im not doing that. Maybe I'll try to find a dyno that just sticks the sensor in the tail pipe, its not as accurate but it should give me a good idea.


#1 it happens every once in a while.... There are some combo's that simply are difficult to iron out. We'll get him goin; its simply inevitable....

#2 Don't automatically discount the IAC; they can carbon up quickly. My throttlebody & IAC both gummed up in 6 months.... Amazing how much smoother the idle was after cleaning both....

#3 Why do they have to both drill a hole & weld in a new O2 bung when they can simply remove one of the existing O2's & use that "port"?
(Possibly I'm showing my ignorance.... You might have a x-pipe or h-pipe w\out cat's & no provision for O2's?)

With 19lbs injectors..... 40- 44 sounds about right to be safe.....

[anthonydalrymple]

[quote=Capri50]

1) This kind of makes me feel bad for V8only, he's doing pretty much the same mods as me and he cant get his car running well, while my car didn't even come with fuel injection and its running pretty good.


2) A problem I may be having right now is the engine likes to search for idle. It will search for a minute then level out, then search, and so on. Im wondering if this is just something Im going to have to live with since this is an untuned stock speed density system, or if its maybe a deeper problem. I dont think its the AIC since its only a year or 2 old, and the TPS is brand new and the voltage is at .99-.98.

3) Also I was wondering what people with similar mods keep their fuel pressure set at? I have it at 44psi with the vacuum unpluged. Im guessing the car makes between 260 and 280 rwhp. Im going to the dyno thursday but if I want an O2 reading they charge an arm and a leg and drill a hole in my exhaust to put a wide band O2 sensor in it, and Im not doing that. Maybe I'll try to find a dyno that just sticks the sensor in the tail pipe, its not as accurate but it should give me a good idea.


#1 it happens every once in a while.... There are some combo's that simply are difficult to iron out. We'll get him goin; its simply inevitable....

#2 Don't automatically discount the IAC; they can carbon up quickly. My throttlebody & IAC both gummed up in 6 months.... Amazing how much smoother the idle was after cleaning both....

#3 Why do they have to both drill a hole & weld in a new O2 bung when they can simply remove one of the existing O2's & use that "port"?
(Possibly I'm showing my ignorance.... You might have a x-pipe or h-pipe w\out cat's & no provision for O2's?)

With 19lbs injectors..... 40- 44 sounds about right to be safe.....

[795.0pacecar]

I think I sprayed some carb cleaner in the IAC when I pulled it off the old intake, I cant remember, it was working fine before I pulled it off though. I'll try cleaning it again.

Im not sure why the people at dynolab drill and put in their own sensor instead of putting one in the existing bungs, I would guess maybe they want the ECU to know that the O2 reading is for both sides of the exhaust at all times.

[795.0pacecar]

I think I sprayed some carb cleaner in the IAC when I pulled it off the old intake, I cant remember, it was working fine before I pulled it off though. I'll try cleaning it again.

Im not sure why the people at dynolab drill and put in their own sensor instead of putting one in the existing bungs, I would guess maybe they want the ECU to know that the O2 reading is for both sides of the exhaust at all times.

[f4fntm]

The EZ-out broke off in the bolt
That's what they always do! lol

For your idle hunting problem, take a look at this and see if you get anything out of it:

http://www.corral.net/forums/showthread.php?s=&threadid=10805&highlight=connector

[f4fntm]

The EZ-out broke off in the bolt
That's what they always do! lol

For your idle hunting problem, take a look at this and see if you get anything out of it:

http://www.corral.net/forums/showthread.php?s=&threadid=10805&highlight=connector

[795.0pacecar]

Thanks for the link. Their problems didn't seem to be quite like mine though. Mine will idle fine at 550 rpms then after a minute or so it will go back and forth between 550 and 800, then it will level out for a while. Im going to try cleaning the IAC, then I'll check out the 10 pin connectors. I started to pull them apart when I was tearing down the engine but I got frustrated and just left everything hooked up, maybe I messed something up. Im also going to try advancing the timing a little bit, when I first got everything running the car seemed to run alittle better with the timing advanced more than 10 degrees.

[795.0pacecar]

Thanks for the link. Their problems didn't seem to be quite like mine though. Mine will idle fine at 550 rpms then after a minute or so it will go back and forth between 550 and 800, then it will level out for a while. Im going to try cleaning the IAC, then I'll check out the 10 pin connectors. I started to pull them apart when I was tearing down the engine but I got frustrated and just left everything hooked up, maybe I messed something up. Im also going to try advancing the timing a little bit, when I first got everything running the car seemed to run alittle better with the timing advanced more than 10 degrees.

[795.0pacecar]

I readjusted the TPS and throttle stop then reset the comp. Still surged, so I turned the fuel pressure down t0 41 PSI and so far it seems to have helped alot. I havn't driven it around yet but it did idle in the driveway just fine for about 5 minutes although the idle was alittle low at 500-550 rpms. I would rather see it around 600-700 but 550s in spec so its probably fine.

I think Im probably over intaked too. The intake is ment more for high end power so I think that it may realy put a big load on the comp to try and figure out what the idle should be. I dont know though.

[795.0pacecar]

I readjusted the TPS and throttle stop then reset the comp. Still surged, so I turned the fuel pressure down t0 41 PSI and so far it seems to have helped alot. I havn't driven it around yet but it did idle in the driveway just fine for about 5 minutes although the idle was alittle low at 500-550 rpms. I would rather see it around 600-700 but 550s in spec so its probably fine.

I think Im probably over intaked too. The intake is ment more for high end power so I think that it may realy put a big load on the comp to try and figure out what the idle should be. I dont know though.

[Marz]

According to my Ford Shop manuals... the fuel pressure on EFI cars is supose to be set to 39 psi.

[Marz]

According to my Ford Shop manuals... the fuel pressure on EFI cars is supose to be set to 39 psi.

[795.0pacecar]

According to my Ford Shop manuals... the fuel pressure on EFI cars is supose to be set to 39 psi.

For a factory stock engine sure. But Im operating on the limit of my #19 injectors on their stock duty cycles. I'll pull the spark plugs at the end of the week to see if the cars running rich or lean, smells alittle rich.

[795.0pacecar]

According to my Ford Shop manuals... the fuel pressure on EFI cars is supose to be set to 39 psi.

For a factory stock engine sure. But Im operating on the limit of my #19 injectors on their stock duty cycles. I'll pull the spark plugs at the end of the week to see if the cars running rich or lean, smells alittle rich.

[795.0pacecar]

Heres a quick small vid of me gettin on the gas alittle. Im commin in 2nd gear then i drop it to first and kind of ride it out. It was too wet to get on it too much.

http://media.putfile.com/pacecar

[795.0pacecar]

Heres a quick small vid of me gettin on the gas alittle. Im commin in 2nd gear then i drop it to first and kind of ride it out. It was too wet to get on it too much.

http://media.putfile.com/pacecar

[795.0pacecar]

Went to the dyno this morning. Im not too impressed but its not bad considering its a completely untuned speed density system. The car made 248.7hp@5350rpms
287.2tq@4200rpms

The guy running the dyno thinks I could pick up around 20rwhp with a tune and he knows a guy who can tune speed density. So I figure I'll get that done sometime within the next 3-4 months.

[795.0pacecar]

Went to the dyno this morning. Im not too impressed but its not bad considering its a completely untuned speed density system. The car made 248.7hp@5350rpms
287.2tq@4200rpms

The guy running the dyno thinks I could pick up around 20rwhp with a tune and he knows a guy who can tune speed density. So I figure I'll get that done sometime within the next 3-4 months.

[srad2drag]

Bump for a update

[795.0pacecar]

I upgraded to an electric fan and I converted to mass air. Seems to be running real strong. Im going to bring it to the dyno and drag strip sometime within the next 2 months. I also plan on getting a TFS stage 1 cam. At the drag strip a few months ago I ran a 13.6@102mph spinnin bad on blad street tires and in 95+ degree weather.

Thats all I've got for now.

[795.0pacecar]

Also I have the fuel pressure at 39psi and timing at 14 degrees, I would guess its putting down around 260-265 rwhp now. When I get the cam I'll expect low 270s at the most. Im doing it more for the sound.

[anthonydalrymple]

So she's pretty much ironed out now? Great! Can't wait to see the dyno number's.....

[anthonydalrymple]

So she's pretty much ironed out now? Great! Can't wait to see the dyno number's.....



Sorry, I couldn't help myself.... Everthing else is in "2"s.....;)

[cb84capri]

what were your average hp and torque numbers?

just curious.

cale

[hr86gt]

This kind of makes me feel bad for V8only, he's doing pretty much the same mods as me and he cant get his car running well, while my car didn't even come with fuel injection and its running pretty good.


A problem I may be having right now is the engine likes to search for idle. It will search for a minute then level out, then search, and so on. Im wondering if this is just something Im going to have to live with since this is an untuned stock speed density system, or if its maybe a deeper problem. I dont think its the AIC since its only a year or 2 old, and the TPS is brand new and the voltage is at .99-.98.

Also I was wondering what people with similar mods keep their fuel pressure set at? I have it at 44psi with the vacuum unpluged. Im guessing the car makes between 260 and 280 rwhp. Im going to the dyno thursday but if I want an O2 reading they charge an arm and a leg and drill a hole in my exhaust to put a wide band O2 sensor in it, and Im not doing that. Maybe I'll try to find a dyno that just sticks the sensor in the tail pipe, its not as accurate but it should give me a good idea.
I have similar set up, had fuel at 42psi, your heads flow better than mine,s o you may need 43ish, my heads have mild port. made 249/295