88 t-bird 2.3 liter turbo. lacks upper end power. - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > V6 and Hot4 Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 04-13-2004, 00:02   #1 (permalink)
Registered User
 
Join Date: Apr 2004
Posts: 6
confused 88 t-bird 2.3 liter turbo. lacks upper end power.

my 88 thunderbird turbo coupe, 2.3 liter turbocharged engine seems to be lacking mid to upper rpm power. it runs great up to about 3,000-3,500 rpms. after that it seems to loose its power. it will still get to 6,000 rpms, it just takes a while. i have checked for trouble codes and there are none. i did both the koeo and the koer tests. the timming is exactly where it should be. 10 degrees before tdc. i use only premium fuel. all of the following parts are new. spark plugs, cap, rotor, wires, throttle position sensor, all new high flow exhaust, air filter, fuel filter. i have checked the following. fuel pressure, timming, computer scan. the turbo is clean and doesnt use any oil. i have an after market boost controll valve which is set at 17 psi. the turbo makes a solid 17 psi. the car doesnt have a miss or anything like that, it just doesnt have quite the upper rpm range power that it should. i took the intercooler off and sprayed some brake cleaner into the throttle body to clean it out. maybe about a 1/8th of a can or so. i put it back together and drove it. the car ran awsome. this lasted for about 15 or so minutes and then it was back to feeling slugish. everytime i spray brake cleaner into the throttle body it runs great for about 15 minutes. why??? could the brake cleaner be fooling a senor? if so which one? or maybe its something eles. i am stumped. understand that the car runs good, just not not to its full potental. kinda like something is holding it back a bit after 3,500 rpms. i would be greatfull for any advice. thanks.
turborich is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-17-2004, 04:04   #2 (permalink)
Old Skool Member
 
Vulcan Power's Avatar
 
Join Date: Feb 2001
Location: Anchorage, Alaska USA
Age: 36
Posts: 1,031
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

Maybe it's got a clogged cat??
__________________
1990 Ford Probe LX 3.0L V6 :s6:
SEE IT HERE:

1989 Mazda RX-7 Turbo II 13B-T "FC3S"
Turbo RWD Rotary Powa!
Vulcan Power is offline   Reply With Quote
Old 04-17-2004, 18:38   #3 (permalink)
Registered User
 
Join Date: Apr 2004
Posts: 6
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

no, it has all new exhaust including a new high flow cat.
turborich is offline   Reply With Quote
Old 04-18-2004, 05:33   #4 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 60
Posts: 6,360
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

Ahhh has it done this since exhuast has been fitted??? The maybe a restrictive muffler etc..Turbo engines don't like baffled mufflers...Maybe spark is blowing out??? If leads etc are o/k then try gapping plugs alittle closer?? Say .030..
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline   Reply With Quote
Old 04-19-2004, 03:37   #5 (permalink)
Registered User
 
Join Date: Apr 2004
Posts: 6
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

no, this problem has been there since i got the car about 6 months ago. i put the new exhaust on because i thought that the old exhaust may have been restricted. as for the new exhaust i had a single 2 1/2 inch pipe ran into a high flow cat and then into a flowmaster 2 chamber with a turndown behind the muffler. i just put new motorcraft plugs in. i gapped them to the factory specs. 0.34. the car only acts up after 3,000 rpms. if im on the freeway it will run up to 145 mph with no problem, but when i really get on it in 2nd & 3rd gear it just flattens out. it starts rite up every time. it makes a solid 17 psi where i have it set at. the rpms just take too long to rev up. its hard to get it to turn 6,000 rpms unless you really stay on the gas. i will try closing the gap a little bit like you said. 0.30. i checked for codes again today and i got one. NO SIGNAL FROM KNOCK SENSOR. would this matter? i have read that you can totally unplug the knock sensor as long as you run premium gas and listen for detonation. thanks for the advice.
turborich is offline   Reply With Quote
Old 04-20-2004, 03:36   #6 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 60
Posts: 6,360
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

Check fuel system/fuel pressure and take it easy it MAY be runing lean= detonation= bang= long walk home...
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline   Reply With Quote
Old 04-20-2004, 16:18   #7 (permalink)
Registered User
 
Join Date: Apr 2004
Posts: 6
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

i checked the fuel pressure and its good, at least at idle and at 3,000 rpms. but still its not under a load. i dont hear any knocking or pinging so i dont think its runnig lean.
turborich is offline   Reply With Quote
Old 05-01-2004, 05:03   #8 (permalink)
Registered User
 
Join Date: May 2004
Posts: 1
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

was wandering if you solved your upper end power shortage, I have an 88 2.3 turbo coupe and when I connected a vaccum line to my map sensor the car didnt run right but it runs great without it. im not sure if this is supposed to work this way does yours have the line or not ? wayne
inman006 is offline   Reply With Quote
Old 05-01-2004, 19:00   #9 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 60
Posts: 6,360
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

Change out that 2 chamber flowmaster to a straight through type or a s type but with NO chambers or baffles..Turbo's don't like them...
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline   Reply With Quote
Old 05-31-2004, 19:07   #10 (permalink)
Registered User
 
Join Date: Mar 2004
Location: Christchurch
Posts: 106
Re: 88 t-bird 2.3 liter turbo. lacks upper end power.

Hook a multi meter up to your O2 and you'll see if it's running lean. Because the proba goes away with the brake cleaner it has to be a prob with the TB what is in the TB just the butterfly plate and vac/boost ports? sounds to me like your TB isn't opening fully for what ever reason and the brake clean is freeing it up for a while.... I'd start by replacing the TB.
Cheers
Nismo_Capri is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > V6 and Hot4 Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
turbo bird cndctrdj Ford Thunderbird Forum 3 03-25-2005 21:31
Here we go again. Supercar Scare!!! EL2 XR8 The Pub 59 08-11-2004 22:11
88 t-bird turbo coupe. 2.3 turbo. lacks power. turborich Ford Thunderbird Forum 1 07-08-2004 14:37
88 crown vic low power modam63 Ford Crown Victoria | Mercury Marauder | Grand Marquis | P71 2 08-26-2003 10:41
Can ECU cars be tuned for PULP? EA S General Tech 26 12-07-2001 22:09

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 13:22.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.