Enlarged TMIC

[speedi3]

I would reccomend just waiting for the test pipe, the cpe down pipe is generally creating smoke out the back because of the first cat issues.

Did you experience that first hand or just hear it from someone? I heard that same thing but haven't seen it for myself. I also heard that the test pipe has a 10-12 hp gain.

 

[shadow1]

Not trying to revive an old thread but....keep in mind that dyno gains from IC (any type) are hard to judge. You cannot reproduce 80 mph airflow through an IC on the dyno (especially a TMIC which requires the hood to be shut). So the power losses with consecutive dyno runs are likely due to heat soak. The bigger ETS unit will be more resistant to heat soak. I'm not saying that the ETS TMIC doesn't help, but a better test of an IC is to run it on the track. If you see better ET's and trap speeds, then you know it is making a difference.

 

[ptperformance]

So not actually a gain. Simply retaining the HP and Trq levels the engine is making initialy, if I understand your post.

No gain due to lack of air flow and the intercooler just heat soaked. What we need is track times and that will show the differences. I was there with the TMIC but the MPH was way off on the night that I was there. But we do have a new 3.5" TIMC that will flow more and should cut down on the heat soak due to the sheer size. The standard unit is 3.25 inches and that has shown some very impressive gains but the 3.5" unit really shines in the top gears (4th - 6th) with some very noticable gains. If I get a chance I will be testing on the track here very soon we just need some nicer weather (rainy WA at its best).

 

[ptperformance]

They're not all off. Some use different methods of measurement thats all. Dynojets algorithm is based on the known engine horsepower of a motorcycle back in the 70's. Mustang Dyno's use a different method of measurement and are always going to be lower than a Dynojet. Dynapacks are lower as well. Dont worry so much about the peak numbers, worry about your A/F and the gains from your mods and always use the same dyno for those measurements now that you have a baseline.

You forgot to add the day to day fluctuations as well. You can have one day that is dry and baro pressure is spot on and then in that same day just 6 hours later its all messed up and not productive for dynoing your car. Now most dynos will compensate for this but its never spot on, they all read different at different times of the day.