North American Turbocoupe Organization



new times
jabobia Offline
Member
#1
only got 2 passes in

1st -
RT: .496
60': 2.89
1/8: [email protected]
1/4: [email protected]

2nd -
RT: .851
60': 2.36
1/8: [email protected]
1/4: [email protected]

bogged on 1st pass and spun bad on 2nd pass...also missed 2nd gear(twice - just wouldnt go in at 6k) on #2

[Image: frown.gif] [Image: eek.gif] [Image: rolleyes.gif] [Image: confused.gif]

-james

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87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - [email protected](2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - [email protected](2.39 60')
www.cardomain.com/id/jabobia
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Glenn 88TC Offline
Posting Freak
#2
What mods do you have done? If you still have the ihi turbo you would be quicker if you shifted lower in the rpms. The ihi just runs out of steam above around 5200rpms. I shifted mine at 5200rpms with the ihi on the car. Just my $.02.

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mods: SDS Digital Fuel Injection, ported & polished big valve head(1.89/1.59), .500 lift roller cam, custom upper and ported lower intakes, 60-1 stage III .63 turbo, powerstroke intercooler, 60mm throttle body, 75pph injectors, Walboro 255HP pump, Kirban adj. fuel reg., ATR header, 3" exhaust with Dynomax Ultraflow muffler, MSD 6al, MSD coil, MSD Launch Control, MSD 8.5mm wires, K&N filter, Star stage III clutch, Greddy Profec B boost controller, Weld Draglites with M/T ET Street 26x11.5/15
NO TC and NO headaches.
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jabobia Offline
Member
#3
glenn,

k&n, 17-18psi, 12*BTDC base ign. timing, 93oct pump gas...everything else is stock from the fans to the tail pipes

i ran at the track with the k&n,vam and hose in the trunk though since with the vam hooked up(even if its unplugged) i am still stuttering...i cant get over 14psi with it on

but - last night on the way home i left it off and after toying with a turbo-ricer it started stuttering with it OFF which it never did...so i dont know what to think now [Image: frown.gif]

ill definatly try shifting sooner next time(if there is a next time)...thanks [Image: smile.gif]

-james

------------------
87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - [email protected](2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - [email protected](2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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Noname
Guest
#4
Considering that the EEC uses output from the VAM to determine where you are on the fuel / ignition maps, you'd probably want to consider leaving it plugged in.

I'd start by figuring what's actually causing your stuttering problem under boost. What kind of fuel pressure are you running? What brand of plugs (gap?) and wires? Is your knock sensor hooked up?
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jabobia Offline
Member
#5
ive been trying to figure it out for two months [Image: frown.gif]

KS is disconnected

42psi base FP 47-48psi under 15-16psi boost...i check it while it was stuttering last month

motorcraft awsf32c's gapped at .030...motorcraft cap&rotor which looked new when i got it but i cleaned them anyway...not sure the brand of wires but i checked them all and i got very low resistance across all of them even when bent like a pretzel

considering it stutters and backfires and hits a wall so hard, and since it went away when i removed the VAM i figured it was fuel related or that the vam hose was collapsing

any ideas? [Image: confused.gif]

-james

------------------
87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - [email protected](2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - [email protected](2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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Noname
Guest
#6
Quote:Originally posted by jabobia:
42psi base FP 47-48psi under 15-16psi boost

...not sure the brand of wires but i checked them all and i got very low resistance across all of them even when bent like a pretzel

That fuel pressure does sound quite a bit low under boost. You should be seeing an additional psi of fuel pressure for every psi of boost you see. Are you still running the stock regulator?

Can you give us any sort of info about the plug wires? Do they have anything written on them? What color are they?
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jabobia Offline
Member
#7
OOPS!! typo : 42psi base FP and 57-58psi under 15-16psi boost [Image: biggrin.gif]

stock reg. yes

splitfire twin core 8mm (blue)...they were on the car when i got it...and theyre kept neat by my blue FMS wire seperators [Image: smile.gif]

see also my post on turboford - i just ran codes and posted them there
http://ubb.turboford.org/ultimatebb.php?...2;t=026109

thanks,
james

------------------
87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - [email protected](2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - [email protected](2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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Pete D Offline
Administrator
#8
Have you ever tried a set of either Motorcraft stock replacement wires or Tailor high energy seem to work well. Almost anything else is a problem - sooner or later.

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NATO Member. it's not a vice, it's an obsession
Letting the cat out of the bag is a whole lot easier than putting it back in.
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm
Pete Dunham


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Glenn 88TC Offline
Posting Freak
#9
I had a similar problem and it turned out to be the dist. cap. It looked fine but it wasn't. They're cheap, just try it.

I can't see how your car ran without the vam hooked up. My car wouldn't even start with the vam not connected. I can't see how you not only started the car let alone raced it liked that. Your car definitely has some issues.

------------------
mods: SDS Digital Fuel Injection, ported & polished big valve head(1.89/1.59), .500 lift roller cam, custom upper and ported lower intakes, 60-1 stage III .63 turbo, powerstroke intercooler, 60mm throttle body, 75pph injectors, Walboro 255HP pump, Kirban adj. fuel reg., ATR header, 3" exhaust with Dynomax Ultraflow muffler, MSD 6al, MSD coil, MSD Launch Control, MSD 8.5mm wires, K&N filter, Star stage III clutch, Greddy Profec B boost controller, Weld Draglites with M/T ET Street 26x11.5/15

[This message has been edited by Glenn 88TC (edited 09-21-2003).]
NO TC and NO headaches.
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jabobia Offline
Member
#10
Quote:Originally posted by Glenn 88TC:
Your car definitely has some issues.

hey man i already know this...dont rub it in [Image: frown.gif]

if you removed the VAM from the turbo and leave it plugged in it wont start...as long as its unplugged and the ecu isnt getting any signal from it, it should run

the car is/was wicked with it off...now it wont even run clean with the vam off [Image: rolleyes.gif]

i guess i can try some new plugs, cap&rotor...i dunno how much ford wires cost

it only seems to do this once ive been driving the car for 5 or 10 minutes...even if i drive it for an hour and it stutters...let it sit 10 minutes...get in it and drive it would take 5 or 10 minutes before it will stutter again

ive tried turning off the ign for a minute while im rolling down the road and starting it back up but it still stutters

after a few minutes of sitting it clears up

[Image: confused.gif]

-james

------------------
87 TurboCoupe - 5spd
87 Thunderbird TurboCoupe - 2.3T, T5, 3.55L - K&N, 18psi - [email protected](2.37 60')
88 Thunderbird Sport - 5.0SO, AOD, 2.73L - [email protected](2.39 60')
www.cardomain.com/id/jabobia
jabobia.com
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