CounterSpace Garage



Join Date: Sep 2012 Drives: Subaru BRZ / Toyota 86 Experts Location: Santa Fe Springs, CA Posts: 984 Thanks: 341 Thanked 869 Times in 373 Posts Mentioned: 148 Post(s) Tagged: 3 Thread(s)





Yes, here it is, one of the updates you've been waiting for. We'll let the results speak for themselves.



The test candidates:

ACE 4-2-1 header + ACE Front pipe. As before, the rest of the car remains OEM, and the results are on ACN 91 and E70 with custom tunes.



The Dynographs:



First, ACE 4-2-1 header vs ACE 4-2-1 header + ACE front pipe.

- Dotted red is ACE 4-2-1 header + ACE front pipe on ACN 91

- Striped red is ACE 4-2-1 header on ACN 91



Test notes:

- There is a gain of 13.8 lb/ft by adding the ACE Front pipe!

- Horsepower gains are only 5.5WHP. However, you can see a huge gain in the area under the curve; there's effectively a horsepower gain everywhere.

- The odd dip you see at 3700 RPM is not actually a dip. This is the AVCS being unable to keep up with the RPMS as the revs are climbing on the dyno. If we change the ramp rate, the dip will shift, based on how quickly you go through the RPM band. In actuality, the dip is not manifested under street driving conditions.

- 199.6WHP on ACN 91. This is a short 4th gear pull. As you know, CSG does not do "hero" dynos. Just to see what we could do, by altering *how* we performed the pull, we were able to make the dyno read 209whp with ACN91, but this is not representative of real world performance. This 199.6WHP is repeatable all day, every day, under heat soaked conditions, at the track.









Second, here is the same test, but on E70.

- Solid Purple is ACE 4-2-1 header + ACE front pipe on E70

- Striped orange is ACE 4-2-1 header on E70



Test notes:

- There is a gain of 8.6lb/ft torque

- There is a 7.7WHP

- As previously mentioned, you'll notice that odd dip has shifted. It's not really there, as it's a cam angle artifact from not being able to keep up with the rate of RPM rise.







Third, we add stock to the graph, with ACN 91 results highlighted.

- Dotted Green is stock on ACN 91

- Striped Red is ACE 4-2-1 header + ACE FP on ACN 91

- Solid purple is ACE 4-2-1 header + ACE FP on E70



Test notes:

- There is a peak gain of 45lb/ft torque at the wheels on ACN 91

- There is a peak gain of 33.8WHP at the wheels on ACN 91







Fourth, we take the same graph and highlight E70 results.

- Dotted Green is stock on ACN 91

- Striped Red is ACE 4-2-1 header + ACE FP on ACN 91

- Solid purple is ACE 4-2-1 header + ACE FP on E70



Test notes:

- There is a peak gain of 50lb/ft torque to the wheels on E70

- There is a peak gain of 46.4WHP on E70





*edited 6/9/2015Yes, here it is, one of the updates you've been waiting for. We'll let the results speak for themselves.ACE 4-2-1 header + ACE Front pipe. As before, the rest of the car remains OEM, and the results are on ACN 91 and E70 with custom tunes., ACE 4-2-1 header vs ACE 4-2-1 header + ACE front pipe.- Dotted red is ACE 4-2-1 header + ACE front pipe on ACN 91- Striped red is ACE 4-2-1 header on ACN 91Test notes:- There is a gain of 13.8 lb/ft by adding the ACE Front pipe!- Horsepower gains are only 5.5WHP. However, you can see a huge gain in the area under the curve; there's effectively a horsepower gain everywhere.- The odd dip you see at 3700 RPM is not actually a dip. This is the AVCS being unable to keep up with the RPMS as the revs are climbing on the dyno. If we change the ramp rate, the dip will shift, based on how quickly you go through the RPM band. In actuality, the dip is not manifested under street driving conditions.- 199.6WHP on ACN 91. This is a short 4th gear pull. As you know, CSG does not do "hero" dynos. Just to see what we could do, by altering *how* we performed the pull, we were able to make the dyno read 209whp with ACN91, but this is not representative of real world performance. This 199.6WHP is repeatable all day, every day, under heat soaked conditions, at the track.here is the same test, but on E70.- Solid Purple is ACE 4-2-1 header + ACE front pipe on E70- Striped orange is ACE 4-2-1 header on E70Test notes:- There is a gain of 8.6lb/ft torque- There is a 7.7WHP- As previously mentioned, you'll notice that odd dip has shifted. It's not really there, as it's a cam angle artifact from not being able to keep up with the rate of RPM rise.we add stock to the graph, with ACN 91 results highlighted.- Dotted Green is stock on ACN 91- Striped Red is ACE 4-2-1 header + ACE FP on ACN 91- Solid purple is ACE 4-2-1 header + ACE FP on E70Test notes:- There is a peak gain of 45lb/ft torque at the wheels on ACN 91- There is a peak gain of 33.8WHP at the wheels on ACN 91we take the same graph and highlight E70 results.- Dotted Green is stock on ACN 91- Striped Red is ACE 4-2-1 header + ACE FP on ACN 91- Solid purple is ACE 4-2-1 header + ACE FP on E70Test notes:- There is a peak gain of 50lb/ft torque to the wheels on E70- There is a peak gain of 46.4WHP on E70 Last edited by CounterSpace Garage; 08-02-2017 at 05:05 PM .