Dyno'd JMB Midpipes W/H Flow Cats

[NVR2OLD]

Last year I put my truck on the Dyno Jet with Andy from Dyno Tunes after I installed a BBK from JTS and CAI from JMB and Magna Flow with stock cats plus 170 t-stat. Elevation here is 3300 ft.-air temp 80-26.78 in-Hg and Humidity 19.

1st run: 434.41 rwhp/ 474.54 torq.
2nd run: 446.00 rwhp/ 485.46 torq.

This year I added JMB midpipes with high flow cats and put the truck back on the Dyno Jet with Andy from Dyno Tunes. Air temp 79-26.93 in-Hg and Humidity 31.

1st run: 447.13 rwhp/ 485.89
2nd run: 454.95 rwhp/ 492.19

Andy from Dyno Tunes said its still a little rich in the midrange and good for 10-15 more hp. I'm happy with the JMB midpipes and the way the truck sounds.

 

[atenza_freak]

Thats badass man I think I might have to hop on the dyno out at sturgis to see how much i can put down with my rear cats removed.

 

[NVR2OLD]

This test was just bolting on the midpipes. When I get my software back from Sean at Roe I'll redue my fuel and Dyno.

 

[Geodriller]

soyou removed all 4 cats? or did you alredy have two of them out.

just goes to show how much hp cats rob from you

 

[NVR2OLD]

soyou removed all 4 cats? or did you alredy have two of them out.

just goes to show how much hp cats rob from you

Yes, I removed all 4 cats and ordered the midpipes w/h flow cats.

 

[Psycho1122]

Also, a good 200 cell, metalic, 3" high flow cat will flow very well.

 

[NVR2OLD]

Also, a good 200 cell, metalic, 3" high flow cat will flow very well.

I know you can buy the 200 cell 2 1/2" or 3" high flow cats on e-bay at a good price, if anyone is looking.

 

[mmmmtorque]

Nice...you will get another 10-12 rwhp with the tune

 

[Outlawl]

what is a bbk from jts? and do you have an exhaust clip?

 

[NVR2OLD]

what is a bbk from jts? and do you have an exhaust clip?

BBK is a 67mm throttle body and is good for 10-15 hp and Tonys ported throttle body also works really good. I'll have to see if I can get a friend to do a sound clip on the exhaust for me.

 

[SANTEEN]

BBK is a 67mm throttle body and is good for 10-15 hp and Tonys ported throttle body also works really good. I'll have to see if I can get a friend to do a sound clip on the exhaust for me.

I had Tony port my BBK

 

[NVR2OLD]

I had Tony port my BBK

Steve, Could you tell any difference between the stock BBK and ported BBK?