!!!!!Loss of power at op temp!!!!!!!!

BLWN 4D · 06-22-2001, 01:48 PM

I have a 91’ stang with all the bells and whistles including a Vortech. For the first ½ hour or so, the car runs strong. But as soon as the car gets to operating temperature, it feels like the car is dropping cylinders! I am still making boost and the car roars like I’m hauling *** but it’s all show. I couldn’t even pull in front of a S-2000 the other day!! As you can tell this did not make me happy a happy camper. The temp gauge goes up to about the half way mark and the car really doesn’t overheat. I live in So CAL by the beach so the temperature is in the mid to lo 80’s. Not more. I already have a 3-core and 180 stat. Any suggestions you could make or things for me to check would be appreciated. Thanks in advance.

------------------
Cobra 306, Edelbrock heads,E-303 cam,1.77 Rockers, Vortech manifolds, Vortech supercharger, Tremec trans,aluminum fly wheel Richmond gears, Stillen brakes, ect..
400 RWHP

smokedchevy · 06-22-2001, 02:46 PM

How much boost are you running? The more boost there is the more the intake charge heats up. You might need an intercooler.

smokedchevy · 06-22-2001, 02:49 PM

Also, how long has it been doing it?

------------------
92 GT, 4:10 gears, centerforce clutch, 6# powerdyne blower, bbk h-pipe, flowmasters

A Wild Neg · 06-22-2001, 04:12 PM

I have the same problem. I havnt' really cured it I dont' think. I can't get it to run cool enough to actually see if it looses power still. I messed with my timing a bit, and it still seems to have power when I drive. Thats just in my case though.

Someone also suggested that its getting to hot in the engine compartment, and its bringing in warm air. You have ram air/cool air filter system? I'm going ot be trying that next.

LX5liter · 06-23-2001, 10:05 AM

It almost sounds as if your clutch is slipping. Maybe the clutch disc has something on it which starts to bleed out at higher temps. Just a guess.

------------------
B.R.
L.X. 5.0 coupe
Cruise control,power mirrors,...and Thats it!

Just me · 06-23-2001, 11:41 AM

I would try the ram air or intercooler. I'm pretty sure thats what it is.

Just me
91'lx, 302 block, crank pulley, no smog, short belt, Wolverine 1087 cam, 15 deg timing, TFS TW heads, motorsport 1.6 3/8 stud RR, ARP studs, TFS chrome hardened push rods, 24lb inj, BBK 255lph fuel pump, Areomotive billet adj FPR, Performer RPM intake(ported to 75mm), 1" spacer, Motorsport polished tall valve covers(love em), Pro-M 77, Acufab 75mm TB, Ford idle air bypass valve, K&N conical, MSD 6AL and coil, 9mm MS cables, NGK bkr5e 11 plugs@55, motorsport 3 core radiator,160 thermostat, Hurst short throw, motorsport 410 gears, aluminum drive shaft,Kenny brown Subs, Mac 1 3/4"Long tube, custom 3"off road xpipe, 2 chamber Flow Masters, 3 1/2" tailpipes HAL tubular K-member, KYB struts and shocks, Eibach springs, Steeda 2.5" Cowl, Steeda rear wing, black Dupont centari acrylic enamel paint. Going for an electric fan setup with a blower.

smokedchevy · 06-23-2001, 07:51 PM

What's up BLWN4WD?????

Capri306 · 06-24-2001, 02:38 AM

Three words: replace the HEGO's.

------------------
Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch

06-22-2001, 01:48 PM	#1
BLWN 4D Registered Member Join Date: Jun 2001 Location: Huntington Beach, CA Posts: 1	!!!!!Loss of power at op temp!!!!!!!! I have a 91’ stang with all the bells and whistles including a Vortech. For the first ½ hour or so, the car runs strong. But as soon as the car gets to operating temperature, it feels like the car is dropping cylinders! I am still making boost and the car roars like I’m hauling *** but it’s all show. I couldn’t even pull in front of a S-2000 the other day!! As you can tell this did not make me happy a happy camper. The temp gauge goes up to about the half way mark and the car really doesn’t overheat. I live in So CAL by the beach so the temperature is in the mid to lo 80’s. Not more. I already have a 3-core and 180 stat. Any suggestions you could make or things for me to check would be appreciated. Thanks in advance. ------------------ Cobra 306, Edelbrock heads,E-303 cam,1.77 Rockers, Vortech manifolds, Vortech supercharger, Tremec trans,aluminum fly wheel Richmond gears, Stillen brakes, ect.. 400 RWHP

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06-22-2001, 02:46 PM	#2
smokedchevy Registered Member Join Date: Jun 2000 Location: ventura,CA Posts: 438	How much boost are you running? The more boost there is the more the intake charge heats up. You might need an intercooler.

06-22-2001, 02:49 PM	#3
smokedchevy Registered Member Join Date: Jun 2000 Location: ventura,CA Posts: 438	Also, how long has it been doing it? ------------------ 92 GT, 4:10 gears, centerforce clutch, 6# powerdyne blower, bbk h-pipe, flowmasters

06-22-2001, 04:12 PM	#4
A Wild Neg Registered Member Join Date: Apr 2001 Location: Bloomington, IL Posts: 26	I have the same problem. I havnt' really cured it I dont' think. I can't get it to run cool enough to actually see if it looses power still. I messed with my timing a bit, and it still seems to have power when I drive. Thats just in my case though. Someone also suggested that its getting to hot in the engine compartment, and its bringing in warm air. You have ram air/cool air filter system? I'm going ot be trying that next.

06-23-2001, 10:05 AM	#5
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	It almost sounds as if your clutch is slipping. Maybe the clutch disc has something on it which starts to bleed out at higher temps. Just a guess. ------------------ B.R. L.X. 5.0 coupe Cruise control,power mirrors,...and Thats it!

06-23-2001, 11:41 AM	#6
Just me Registered Member Join Date: Nov 1998 Location: Miami,Florida Posts: 159	I would try the ram air or intercooler. I'm pretty sure thats what it is. Just me 91'lx, 302 block, crank pulley, no smog, short belt, Wolverine 1087 cam, 15 deg timing, TFS TW heads, motorsport 1.6 3/8 stud RR, ARP studs, TFS chrome hardened push rods, 24lb inj, BBK 255lph fuel pump, Areomotive billet adj FPR, Performer RPM intake(ported to 75mm), 1" spacer, Motorsport polished tall valve covers(love em), Pro-M 77, Acufab 75mm TB, Ford idle air bypass valve, K&N conical, MSD 6AL and coil, 9mm MS cables, NGK bkr5e 11 plugs@55, motorsport 3 core radiator,160 thermostat, Hurst short throw, motorsport 410 gears, aluminum drive shaft,Kenny brown Subs, Mac 1 3/4"Long tube, custom 3"off road xpipe, 2 chamber Flow Masters, 3 1/2" tailpipes HAL tubular K-member, KYB struts and shocks, Eibach springs, Steeda 2.5" Cowl, Steeda rear wing, black Dupont centari acrylic enamel paint. Going for an electric fan setup with a blower.

06-23-2001, 07:51 PM	#7
smokedchevy Registered Member Join Date: Jun 2000 Location: ventura,CA Posts: 438	What's up BLWN4WD?????

06-24-2001, 02:38 AM	#8
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	Three words: replace the HEGO's. ------------------ Capri306, Moderator, The Mustang Works Online 1979 Mercury Capri, 5.0L -- C4 -- 2.73 1987 Mustang LX Notch