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The car is completely gutted with a roll cage and race seats has coilovers brand new throttle body 4:10 gears stock t56...upper and lower kb control arms in rear 11 in tires in the rear, flowmaster mufflers borla xpipe...
and it runs a 15.8 and traped 87?
the engine sounds good exhaust note is descent but obviously im losing power somewhere
any suggestions would be appreciated
My first question is what motor are we dealing with here and can you list what has been done to the motor? Does is run rich at WOT? Does is seem to have more or less power at some point through the RPM range? The more info you can give us the more we can help.
One other thought, have you put a code scanner on it? This is the first thing I would do.
Darren
'83 5.8L TKO'd T-Bird on the bottle
'93 5.0L Mustang Coupe that beat your mom's Crown Vic
What was the 60?
Never underestimate the unpredictability
of stupidity!
Just damn junk with a blow through
problem solved....just needed to clean maf sensor...fml
Must have been really dirty! Glad you found the problem. Let us know what it runs with a good tune on it.
Darren
'83 5.8L TKO'd T-Bird on the bottle
'93 5.0L Mustang Coupe that beat your mom's Crown Vic
after just cleaning the maf it ran a 14.6 and trapped 96...still not fast but quite an improvement for 10 min worth of workOriginally Posted by Aerocoupe
something has to be way wrong... i'm trapping mid 80's in the 1/8th, and that was running like crap... at that time i had a 306 with some cheesy ebay aluminum heads, parker funnel web intake, stock t5, stock clutch, 4.10's on street tires!!
please tell us what kind of motor you're dealing with here.
hahaha its a long story but... the car belongs to "baylor driving club" it was givin to us by an alumni who used it for scca races...this car gets beat on by lots of people every weekend. The purpose of the car is to give people that dont have a car to race an oppurtunity to do so and for people like me that dont wanna tear their cars apart. We work on the car once or twice a week with very very very limited funds. We dont want the car to be fast because most the people who drive it are very inexperienced. We are just trying to build a reliable car that we can let people romp on.
We still would like a little faster car but understand this is basically for shits and giggles and most parts are donated to us.
As far as engine mods thier arnt really any just cold air intake just a plain jane 5.0 with the mods mentioned in the first post
Any ideas on where we might be losing power?
Again, have you checked for any codes? Any one of several sensors could be bad robbing power.
Darren
'83 5.8L TKO'd T-Bird on the bottle
'93 5.0L Mustang Coupe that beat your mom's Crown Vic
ah i see, makes a little more sense.
You should check the timing, set the timing to 12 degrees and then bump it to 14 degrees base timing, if if is not already bumped up. The mph is about what I would expect for that car, it might run a little quicker with a set of 3.73s, I know my car would fall on it's face after 5200 rpm, reving it any higher was a waste of time. My car did a best of 14.0 at 98 mph, coasting on the top end and granny shifting second, because I knew I was going to break out. That run should have been around a 13.8, I was dialed in at a 14.3 or 14.4. Previoulsy I had only run the car at Alamo drag way, there it did a best of 14.5. The first pass at HRP, the car hooked very hard on street radials, turned a high 1.8 '60, right then I knew the car was going to run a lot quicker than what it had previously ran at Alamo, so I shifted into second very slowly and then coasted on the top of the track and still broke out by a ways, so that was my only run in that car at HRP. The only mods the car had were a complete MAC 2 1/2" exhaust, 3.73 gears, stock replacement K&N filter and a set of Cobra rockers. It still had 17" stock GT wheels, full GT interior, it was only about 6 months old at that point.
The current combo is an '85 coupe with 302 bored and stroked to 364, Ported Twisted Wedge heads and a BXR intake, A9M ECM with a Moates chip, Doug Nash 5 spd, 4.56 gears, Hoosier 275/60/15 drag radials.
Daily driver '89 GT 302 stock block, crank, rods and pistons, ported GT-40P heads with stock valves, Ported Explorer intake, B302 cam, Z spec T5, 3.73 gears, Moates chip and no traction. Made 325 whp and 325 wtq.
I would think it would trap better being that the car is stripped i.e. weighs a lot less than a stock interior car and it has 4.10 gears. He still needs to pull the damn codes.
Darren
'83 5.8L TKO'd T-Bird on the bottle
'93 5.0L Mustang Coupe that beat your mom's Crown Vic
94-95's are a lil bit funny when it comes to messing with the timing..
as i mentioned before the only codes we get are emissions, most likely because we have an aftermarket exhaust and have not had the car tuned since...I may be wrong but i dont think an emission code would relate to a loss of power. I will mention that i looked at some of my old slips the car traped 75 at the 8th mile so it may be that the 4.10 are to much for this engine to handle...we are hoping to get a cam and tune soon...so hopefully that would help with the gearing issue right?
oh and my buddy set the timing a couple of months ago...i cant remeber exactly what he set it to but it was whatever the guys at 5.0resto told us to do
I know we used to set the base timing on foxes to 14 degrees, but I want to say my '95 GT only liked about 12 degrees base, but that could have been my Lightning, I know it did not like any more than 11 or 12 degrees base timing. At WOT 14 degrees should work fine, but I think my '95 would rattle under light accelleration with 14 degrees base timing. That was the reason for suggesting you start off with 12 degrees base.
I have been using Tweecers for about nine years to tune cars, so I have not used the distributor to add timing to EFI for years. When tuning with a chip I always set the base timing to 10 degrees and add timing with the Tweecer.
The stock 5.0 timing tables add too much timing in much of the part throttle range, so it limits how much base timing you can add. Even once you have added enough base timing to cause the car to ping at part throttle accelleration, you usualy are still a ways away from optimum timing at WOT, the only way to get the timing correct at all points is to have it tuned with a chip.
The current combo is an '85 coupe with 302 bored and stroked to 364, Ported Twisted Wedge heads and a BXR intake, A9M ECM with a Moates chip, Doug Nash 5 spd, 4.56 gears, Hoosier 275/60/15 drag radials.
Daily driver '89 GT 302 stock block, crank, rods and pistons, ported GT-40P heads with stock valves, Ported Explorer intake, B302 cam, Z spec T5, 3.73 gears, Moates chip and no traction. Made 325 whp and 325 wtq.
I went back and reread my posts and just wanted to say the I hope I am not coming off harsh. I cannot find anywhere in your previous posts where you mention having the car tuned or pulling the codes and getting emissions codes. You would be amazed what one sensor out of range can do to one of these cars. Can you post the code numbers you are getting?
What gear is the car in and what are the rpm's coming through the traps in the 1/4 and 1/8? With six gears I am having a hard time believing the 4.10's are causing an issue. I have seen plenty of stock manual trans 5.0 cars with 4.10's drag racing and they were quicker and faster than the times you are posting. It just sounds like something else is up. How many miles are on the motor? Is it just tired? Have you done a leak down test on each cylinder?
Darren
Last edited by Aerocoupe; 03-04-2010 at 04:44 PM.
'83 5.8L TKO'd T-Bird on the bottle
'93 5.0L Mustang Coupe that beat your mom's Crown Vic
Relax, that heavy of a car with a stock long block and 4.10 gears those are good mph numbers. Lower gearing will help the car accellerate quicker if you have traction and can shift very quickly, but usualy the mph will drop a little with lower gearing. Those cars were rated at 215 hp from the factory and are much heavier that a fox, 92 to 96 mph was typical for a fox with a stock long block. The car obviously did not 60' very hard, most likely the car is on radials, also likely has stock rear suspension as far as the control arms go. From what he has said about how that car has been used, I would say it has been run hard for a while, also from the sound of the cage in the car, the cage is probably quite heavy, so this car is not going to be a lot lighter than a stock car. Also the computer only looks at signals from the MAF, distributor, TP, ECT and ACT at WOT. Considering all factors I would say the car is running very close to what it should, with the proper drag race suspension and not road race suspension and drag slicks the car would 60' harder and likely run some high 13s.
The current combo is an '85 coupe with 302 bored and stroked to 364, Ported Twisted Wedge heads and a BXR intake, A9M ECM with a Moates chip, Doug Nash 5 spd, 4.56 gears, Hoosier 275/60/15 drag radials.
Daily driver '89 GT 302 stock block, crank, rods and pistons, ported GT-40P heads with stock valves, Ported Explorer intake, B302 cam, Z spec T5, 3.73 gears, Moates chip and no traction. Made 325 whp and 325 wtq.
Hey sorry i reread my post and io saw that i never mentioned checking the codes... im sorry i could have swore i mentioned them somewhere but anyway...
i cant remeber the code its throwing as its been awhile...I do know that it was throwing a tps code which we fixed...I cant remeber what else it gave us but i now that after a long night we had only one emission code I cant check it again till next week but Ill definatly take a second look at the code it is throwing...
as far as gears go i made a few passes on the car and I usually hit 3rd somewhere around the far side of the 1/8 and topped it right towards the end of the 1/4 I never put it into 4th... I was getting upwards of 5000 rpms as i crossed the 1/4 mark
the car reads as having 120k + miles but its anyones guess it has the wiring harness out of a 93 foxbody so we arnt even sure if its the original engine or not. this car has been through hell we run it into the ground at autocrosses and at the strip ie we made 21 passes last saturday night.
That is another interesting thing with it having a Fox EEC harness in it. That means the processer is an EEC IV gen processor rather than the 94-95 based unit. This is all important to know when trying to help with problems. I agree with Sonic Blue 85 that the EEC ignores some of the sensors in WOT situations...completely forgot about that. I would like to know if the suspension is stock and what tires are on the car, if not stock I still think the car should be posting better times.
Sounds like you guys are having a lot of fun anyhow which is the whole point.
Darren
Last edited by Aerocoupe; 03-12-2010 at 09:21 AM.
'83 5.8L TKO'd T-Bird on the bottle
'93 5.0L Mustang Coupe that beat your mom's Crown Vic
Yeah We are having a blast and its a good learning tool for the clubs members...the car has coilovers, and is running 10 1/2 street tires in the rear
What about the control arms in the rear of the car and the rest of the front suspension? K-member & LCA's stock or aftermarket?
Darren
'83 5.8L TKO'd T-Bird on the bottle
'93 5.0L Mustang Coupe that beat your mom's Crown Vic
yeah k members are stock rear and uppers are KB's but the front is stock
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