dyno results from shortrunner intake

[the anti-rice]

Finally got around to putting the car back on the dyno. Here is the graph. A/F is at 13:1 with 24* of timing. This is on a LOADED MUSTANG DYNO AND NOT A DYNO JET. Ill try and get some numbers from a dyno jet just for comparison.

 

[the anti-rice]

Forgot to mention. Supporting mods are:
JTL ramair, pullies, l/t headers, o/r h-pipe, mac catback, accufab t/b, 4:30 gear. 1 1/2" was cut off the runners and upper hat was cleaned up. stock heads and motor.

 

[bobbys97r]

right on did you do a pull before the intake? and have you ran the 1/4 on this setup?

 

[the anti-rice]

the other pull was done a couple months ago. the weather was hot as hell on both pulls.

 

[na svt]

Is that a loss of torque and only a gain of 6.5rwhp? Those gains are very low for n/a short runner.
How much were the runners cut?

 

[cobraboy169]

I would have thought that it would perform better up top then it did. Maybe the car will run a little better when it is moving and more air can get through the intake manifold faster.

 

[prochargedcobra]

I would have thought that it would perform better up top then it did. Maybe the car will run a little better when it is moving and more air can get through the intake manifold faster.

Sounds like your drivabilty just went down 2 notches. That sucks

 

[the anti-rice]

I would have thought that it would perform better up top then it did. Maybe the car will run a little better when it is moving and more air can get through the intake manifold faster.

I thought the samething. The motor doesnt have any work done to it so the intake is out performing the rest of the motor. Once I hit it with the spray Im sure Ill see a huge difference. :rockon:

 

[Red98CobraStang]

car should have made more power than that...... did you delete the IMRC's as well?

 

[the anti-rice]

Yes. IMRCs & EGR.

 

[cobraboy169]

I thought the samething. The motor doesnt have any work done to it so the intake is out performing the rest of the motor. Once I hit it with the spray Im sure Ill see a huge difference. :rockon:

Yeah that extra hit of spray will give you better results than if it were a stock manifold. I see good power up top with mine and the spray hits really hard as well.

 

[Red98CobraStang]

Yes. IMRCs & EGR.

Somethings wrong here. I'm thinking the runners may be cut too much. Did you weld the belled ends back on?

 

[98 N/A 4V]

Somethings wrong here. I'm thinking the runners may be cut too much. Did you weld the belled ends back on?

Its not the runners. His #'s were low before the shortrunner. My guess is that he has low compression in a cylinder or two. -Mark

 

[duane v]

Is that a loss of torque and only a gain of 6.5rwhp? Those gains are very low for n/a short runner.How much were the runners cut?

big time low:??: ......maybe you need to find a tooner that can pull some more out of it.....DA snake boy!!!

 

[Red98CobraStang]

Its not the runners. His #'s were low before the shortrunner. My guess is that he has low compression in a cylinder or two. -Mark

ahh good point. I forgot to look at the base run. time for a compression/leak down test.

 

[the anti-rice]

Did a compression test today.

#1 = 170
#2 = 172
#3 = 175
#4 = 170
#5 = 161
#6 = 164
#7 = 170
#8 = 170

All the plugs were an ash color except for #8, it was black and looked kinda wet so thats running rich. Ill get some new plugs in the car next week and go from there.....