hp/tq suffering??

[302fordracer]

My torque number (in sig) seems kinda low to me for my mods (also in sig) I am wondering..I ran a 10.9 air to fuel ratio at WOT..is this what is most likely to blame for this seeming lack of torque?? It was a mustang dyno and I know they aren't as generous but still I would think I could get at least 290 out of it?? It is a 5 speed btw..What do you all think?

 

[5.0_GT_kid]

was the dyno being run loaded or unloaded?

 

[dstanggt50]

I would assume that you running rich and the fact that it was on mustang dyno are to blame. When I had a similar combo ( shorties, off road, flows, gt-40 intake,) I dyno'd 245rwhp, 292rwtq. I would try to lean it out, and if you were to go to a dynojet, I'm sure the tq would pick up.

 

[302fordracer]

loaded...I thought all mustang dynos were load bearing??

 

[Grn92LX]

STick with the Mustang dyno. It has more of a real load. If your running 10.9:1 a/f you are hurting power all across the board and possibly hurting your rings/cylinder walls. If your car was custom tuned by an sct place like your sig says, they did a horrific job if they let you leave with a 10.9:1 a/f.

 

[302fordracer]

The chip was set blindly (off the dyno)...they needed to set it rich in order to make the car run properly (long story) but let it suffice to say that the guy who set it knows what he is doing but didn't have the tools at the time to properly set it..I guess I will go back and have him do it again while ON THE DYNO lol...

 

[5.0_GT_kid]

loaded...I thought all mustang dynos were load bearing??

The Mustang dyno over here in Tampa can run both loaded and unloaded.

 

[SMOKEDYA]

STick with the Mustang dyno. It has more of a real load. If your running 10.9:1 a/f you are hurting power all across the board and possibly hurting your rings/cylinder walls. If your car was custom tuned by an sct place like your sig says, they did a horrific job if they let you leave with a 10.9:1 a/f.

i dont understand how runningto rich can hurt the rings and so forth? why is that? i know running lean will cause some damage but running rich???? peace


john

 

[Grn92LX]

i dont understand how runningto rich can hurt the rings and so forth? why is that? i know running lean will cause some damage but running rich???? peace


john

The excessive gasoline washes away the oil on the cylinder walls that the rings need for lubrication.

 

[302fordracer]

that would explain the car's occassional tendency to low oil pressure...most of the time it is fine but every once in awhile it dips low...

 

[Grn92LX]

that would explain the car's occassional tendency to low oil pressure...most of the time it is fine but every once in awhile it dips low...

I don't think your rich condition would effect that. Sounds like your looking at a stock gauge. Obviously the oil pressure will lower once the car warms up. But none the less, that rich condition is hurting power, economy and potentially hurting your rings/cylinder walls.

 

[302fordracer]

yeah after I said that I started thinking about it and was like wait a minute I already decided that the gauge was to blame for that lol...sorry I work 12 hour graveyard shifts and am very tired these days...yea the stock gauge is crap..

 

[302fordracer]

someone told me the oil sender unit was to blame and alot of people agreed and it makes sense to me because I kept monitoring my oil volume and it was always good

 

[SMOKEDYA]

The excessive gasoline washes away the oil on the cylinder walls that the rings need for lubrication.

yeah good point! our donor car was running extremely rich and the pan was full of fuel peace



john