Dyno day
Thread Starter
Call me Chris :)
Joined: Mar 2004
Posts: 742
Likes: 0
Dyno day
The coupe made 833 hp and 567 torque. Every time @ 7500 the car would just sink into the dyno and stop pulling. Sam thought is that it is converter sucking it up, so I will take the 833hp. Going to try to make it to the track next week after we fix our trailer.
Don't be so angry
Joined: Mar 2004
Posts: 986
Likes: 0
Wow....nice numbers
John
John
__________________
John
1992 Mustang LX 5.0-Powerdyne BD-11A, 3.73's, FRPP clutch, chrome Ponies, Mac headers, Aeromotive regulator, MSD 6A, MSD BTM, FRPP 42# injectors, Pro-Flow Air Optimizer, Trick Flow Track Heat intake, Edelbrock 75MM TB, AFM Power Pipe
John
1992 Mustang LX 5.0-Powerdyne BD-11A, 3.73's, FRPP clutch, chrome Ponies, Mac headers, Aeromotive regulator, MSD 6A, MSD BTM, FRPP 42# injectors, Pro-Flow Air Optimizer, Trick Flow Track Heat intake, Edelbrock 75MM TB, AFM Power Pipe
Need To Get Quicker
Joined: Dec 2001
Posts: 894
Likes: 0
What do you mean by "sink into the dyno and stop pulling"? Was the car maybe running out of fuel or air? Maybe it was just starting to lay over. I've never seen a converter drag a car down on a dyno like that. Especially at 7500rpm. Usually when a converter starts to come together, the horsepower goes up, not down. Whould be interesting to find out what is happening.
Thread Starter
Call me Chris :)
Joined: Mar 2004
Posts: 742
Likes: 0
Its a real loose convert (5000 stall). Sam says its something about loading the dyno and how a C4 acts. If it was a Gluide it wouldn't do it. I told him that I wanted to make over 1000 hp, he said that a C4 would never do it on a chassis dyno. We need to take it to the track and calculate the true horsepower. The HP ramp was real good, it went straight up, but no matterw what I did, at 7500 it just fell over.
We have a Weldon 2345 pump (300 gph) and 160 lbs injectors so it wasn't running out of fuel. The car would just get to 7500 and stop.
We have a Weldon 2345 pump (300 gph) and 160 lbs injectors so it wasn't running out of fuel. The car would just get to 7500 and stop.
Thread Starter
Call me Chris :)
Joined: Mar 2004
Posts: 742
Likes: 0
Its kind of hard to see here, but the green line is RPM. You can see how fast it ramps up to 7500 (white vertical line) and then it burps and just falls over and slowly climbs to 8000. At the track last time the car ran from 5k to 8500 fast and didn't slow down. I believe what Sam says in that its the C4 and the way a real loose converter acts on the dyno. We have had the car up to 9k before and there wasn't a lag at any point.
