? for Mustang dyno operators
#1
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From: Clarksville, IN
? for Mustang dyno operators
I went to a local Mustang dyno yesterday and we could not get the car the register high than 125hp. There seemed to be no load applied. It only took 2 seconds to get from 3000 to 6500 rpm. From what I could see, the owner had all the parameters entered. The car is in my sig. It has a 3800 stall and 10 bolt rear with 4:10 gears. The car pulls great on the street. There is definitly way more than 125 hp on tap. Anyone have any insight?
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From: Clarksville, IN
The guy really didn't charge me anything so the money was a non-issue. He was really cool about it. He is trying to figure it out himself. I know its not the car. I am going to a Dynojet dyno later to give it another try. I am hoping someone who has operated a Mustang dyno will be able to shed some light on this.
#5
There could be a lot of reason's why it would do that. I think we've seen the full gambet of what could go wrong with a Mustang dyno, but we haven't had a problem with ours for over a year now, when the Mustang guys came out and loaded a new hard drive in the computer. The load capabilites also differ greatly depending on the Model, do you happen to know what Mustang Dyno he was using? Here's a few things I would check.
1) Load sensor is broke. Fix: Take voltage reading from load cell.
2) Fuse for PAU Force is blown. Fix: Replace fuse.
3) PAU drive cable has a short. Fix: Check cable for resistence.
4) Make sure the Dyno is calibrated with Parasitic Multiplier value of 1.
I can take a look at your dyno sheets if you want to fax them or email them to me. If they have the "PAU Force" on them it'd be a great help. I also noticed you're in Indiana, we're only about an hour from US 41 if you're still interested in using a Mustang Dyno, we have had cars pull up to 2500hp on our Mustang MD-1100SE.
1) Load sensor is broke. Fix: Take voltage reading from load cell.
2) Fuse for PAU Force is blown. Fix: Replace fuse.
3) PAU drive cable has a short. Fix: Check cable for resistence.
4) Make sure the Dyno is calibrated with Parasitic Multiplier value of 1.
I can take a look at your dyno sheets if you want to fax them or email them to me. If they have the "PAU Force" on them it'd be a great help. I also noticed you're in Indiana, we're only about an hour from US 41 if you're still interested in using a Mustang Dyno, we have had cars pull up to 2500hp on our Mustang MD-1100SE.
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From: Clarksville, IN
Mike, I do not know what model it is and I did not get the graph. I assumed at the time it was useless. I will call the owner as soon as he gets back into town (He left yesterday and won't be back till next week). He is a member on this board so he may chime in sooner or later. I will try to have him fax/email the graph to you. He had a couple LS1 cars (6 speeds) on it earlier in the week with no problems. Thanks for the input!
#7
We have also been though the whole deal with the mustang dyno. For automatics, you need to lock the TC for best data. Be sure they were not using a Roll speed RPM calculation. We use a obd2 pickup for RPM on ours, for older autos we use a optical eye on the balancer.
Any questions, id be more then happy to answer.
Any questions, id be more then happy to answer.
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From: Clarksville, IN
Originally Posted by Jake@EPP
We have also been though the whole deal with the mustang dyno. For automatics, you need to lock the TC for best data. Be sure they were not using a Roll speed RPM calculation. We use a obd2 pickup for RPM on ours, for older autos we use a optical eye on the balancer.
Any questions, id be more then happy to answer.
Any questions, id be more then happy to answer.
#9
He was using the TS-1 pick up. I've used the roll speed calculations for TH400 set ups a few times. It's always worked well enough for me to get the AFR right. HP numbers, you got to take with a grain of salt though.
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From: Clarksville, IN
Originally Posted by Tuner@Straightline
HP numbers, you got to take with a grain of salt though.
#13
395rwhp through a M6 and Fast 90/90 with that cam seems about what I'd expect to see on our MD-1100SE. If the 345rwhp was before the tune, then it seems a little low, but not out of reason. I ususally don't pull untuned cars above 6000rpm (usually only to 5500rpm), but I'd think that 355-365rwhp untuned would be a little closer to what I'd expect.
#15
Originally Posted by sidewayz28
395 was with the ls6 intake, 241 heads, cam, LTs and through cats..
the 34x rwhp was after i did 243s, 90/90
the 34x rwhp was after i did 243s, 90/90
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Originally Posted by n2ocamaro
Yeah, but 125 isn't even close. I was expecting lower numbers than a Dynojet, but that isn't even in the ballpark.
When I was 6spd I made 470 rwhp on a Dynojet at 8psi.
#20
Originally Posted by Zombie
I'm in the same ball park as you. My car makes 470 RWHP on the mustang dyno at 14psi of boost from a T76 turbo. The car is 3700-3800lbs with me in it and I run 10.5's at 130mph. I don't know if there is some super secret way to dyno a th400 car on a mustang dyno, but I'm pretty sure my numbers are a little better than that considering I've seen a M6 car make 480 RWHP on the same dyno in same conditions and he only manages 12s @ 118 mph.
When I was 6spd I made 470 rwhp on a Dynojet at 8psi.
When I was 6spd I made 470 rwhp on a Dynojet at 8psi.
Non locking converters get killed on a Mustang Dyno. I had a D1SC 402 with a TH400 car at 15lbs of boost make 600rwhp and 800rwtq, I'd love to see what it would make on a engine dyno, or through a six speed.