You will never believe this....or maybe

MysticKeith50

MysticKeith50

New Member
Apr 22, 2003
330
0
0
Pennsville, New Jersey
#1
You will never believe this....or maybe!!!!

Did the h/c/i swap approx 4 months ago...got the sct chip from JMS.....never had good drivability. I was like wtf...evryone else who has one of these has awesome driveability why not mine. I contacted JMS several times(BTW they were very helpful), and they had me try numerous things...fuel pressure, vacuum leaks, timing....all check out good. Then they told me I did not have it plugged in right.......well guess what.....I DIDN"T PLUG IT IN RIGHT:bang: .The contact were not touching properly. There was still a little bit of that rubber that was on slot for the computer were the chip plugs in.....I scraped it off gently....sanded unitll a little bronze, cleaned with alcohol, re-installed and BAMNMMM. Its 12:00 at night and I just started my car up in the garage to reveal A rock solid cammy idle, no surging, no stalling....its a miracle, the car runs just like it did before....maybe next time I will not be such a dumb a$$ and take my time.:rlaugh: oh well just had to rant. Oh yeah and I woke my wife up and she is Pissed:mad:
 
#3
Glad to hear you got it. Way back, had I not seen all the posts about connector prep, I would have done the same thing, bud. Glad to hear you woke it up. :nice:
 
#9
I can't believe you put it in.....I had mine done and set specific for all my mods to get the most out of it......I took it to Lasota racing and it was part of the dyno fee and didn't have to touch the chip....just my seven different settings in the glove box...I know you and I are basically set up the same so far as mods....
 
#13
Good to here you got it worked out! I just want to throw out here that THE FOLKS AT JMS ARE A-1! I'm working about 40 miles from there shop and also getting ready to put in my new 354. I had heard all the problems with the eec-4 and figured I would stop in and ask some questions about tuning and a chip. I met with Steve and he was one of the most helpful and knowledgable people I ever met. He answered any questions I had and took the time to explain every question I had and also gave alot more info and tips. I filled out a tech sheet and they burned me a mild start up chip. As soon as I get it broke in I'm taking it back for a dyno tune.It's a pretty nice facility with both a mustang and and dynojet chassis dynos. BTW they had 21 mustangs and a couple of lightnings and a harley truck sitting in the lot. This is not just a mail order chip company, these guys know their *****.:nice:
 
#15
MysteryMachine said:
OT: Whats the difference in a "mustang" dyno and a normal dyno
Click to expand...

It's just the brand name,I'm not that "up' on dyno's ,sombody elese here could explain it better. The mustang dyno is different in that it is a load bearing dyno and seems to give a more accurate reading as to what the car will do while driving, at least that was what I have read:shrug:
 
#16
95vert354 said:
It's just the brand name,I'm not that "up' on dyno's ,sombody elese here could explain it better. The mustang dyno is different in that it is a load bearing dyno and seems to give a more accurate reading as to what the car will do while driving, at least that was what I have read:shrug:
Click to expand...

Oh lol I thought it was one special made for mustangs
 
#17
MysteryMachine said:
OT: Whats the difference in a "mustang" dyno and a normal dyno
Click to expand...
Dynojet is actually an accelerometer whereby it uses a 3000-3200 pound drum that is used to create an inertia load on the vehicle being tested. The vehicle's horsepower (HP) and torque try to overcome the weight/inertia of the drum to accelerate it. As a result the software and electronics try to measure the horsepower and torque that the vehicle is developing to overcome the drum's weight and inertia. The resulting horsepower and torque will be higher than a true loading dyno because once the drum starts rolling not as much power is needed to keep it going. Example -- When pushing a car on a flat road, once the car starts moving not as much power (effort) is needed to keep it going. The software does not ask for vehicle weight or anything like horsepower needed to maintain 50 MPH (a number that is actually put out by E.P.A. and N.H.T.S.A.).

The Mustang dyno is a true loading dyno, because it uses an inertia weight as well as an eddy current motor that is attached to the rollers. This eddy current motor creates a drag on the shaft by way of electricity that causes a magnetic field to try and overcome the torque going through the roller shafts. This current is controlled by software that is always trying to simulate load as if the car is driving in real world conditions. The real benefit from the loading dyno is the ability to maintain a load that allows a tuner to properly go through a fuel map or ignition map and tune the chip for optimum horsepower and torque. It has the ability to also simulate the IM240 emissions test as required in some states. It can check 1/4 mile times as well as times for 0-60 MPH and 0-100 MPH. It can also be used for road testing and simulation for drivability problems. As a result of the loading capability, the dyno numbers from a mustang dyno will come out lower than the inertia (dynojet) dyno.
 
You must log in or register to reply here.

Similar threads

A
95 Gt intermittent backfire
Replies
0
Views
394
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
A_A_Ron
A
B
'03 GT Fuel Pump/Pressure/Delivery Issue
Replies
8
Views
816
SN95 4.6L Mustang Tech
gkomo
gkomo
M
Progress Thread mnky99 2001 V6 evap core, ac compressor, heater core replacement
Replies
1
Views
424
1996 - 2004 SN95 Mustang -General/Talk-
mnky99
M
J
Progress Thread Family member 1989 GT- Backstory and updates
Replies
15
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
JRC99
J
D Durden
Place to Avoid: Jamison Auto Group in Gulfport, MS
Replies
45
Views
2K
1965 - 1973 Classic Mustangs -General/Talk-
nickyb
nickyb
Top Bottom
Back
Forums
Menu