Capa Maps

[O2STOCK]

Well I thought is was time to write my first post I hope it is in the correct section.

I have a mechanically stock BA XR6T auto with a K&N and CAPA edit, I have noticed quite different Dyno maps generated by my car to those posted by CAPA, with the same (Stage 1) modifications.

CAPA don’t seem quite help full to explain why.

If you look at the enclosed graph you can see the stock line in red at 194.4KW

With the K&N added jumps a couple of KW across the whole range. Then above are the two CAPA maps (sent from CAPA)

The CAPA 8psi map has the same top KW as the stock map with the K&N but a whole lot more mid range.

The CAPA 10 PSI map gains 16 KW top end and more mid range.

The mid range is great, but falls away at the top end making the performance mode of the auto box useless as the car revs post it usable power curve. The car is actually faster in drive mode.

The question I ask is has any one else performed just the CAPA edit and filter, if so is this the standard result or are the maps incorrect.

When I turn the car on but do not start it , a clicking sound is heard. I am lead to think that this means the car is running in closed loop boost control but am a little unsure.

Do I need to add a new exhaust to keep the boost curve flat and gain more top end.

I hope some of you gurus can shed some light on this for a new comer to the xr6 turbo modification scene.

[RAPHOON]

Were you there when the car was run on the dyno?

The power curves look very smooth for a standard flash??

The clicking noise seems to be present on some of the standard maps, whereas the maps generated by most custom tuners have this removed/resolved.

Where to next really depends on the power level you are after. That said, I would high recommend a custom tune even if you do not wish to spend money on any additional hardware.

A good custom tune will get you over the 260RWKW mark with gearbox settings changed etc.

If you are looking for more power than that, then I suggest that you get all the hardware ready to go first and have it all installed before/during the custom tune.

[Ralph Wiggum]

SIXRT is spot on. the capa generice tunes are just that "generic" if you can afford a custom tune by a reputable tuner get it done. You should see 250/260 rwkw.

Although your capa tunes do have a very nice curve just to bad the peak h/p isnt that high.

[LightningXR6T]

Are dyno kw readout 'rwkw'? If so shouldn't the kw reading on the chart be much higher than it is?

[JimmyXR6T04]

hey mate,

the clicking noise you hear is the solenoid. A few T's have this problem but we've been told that it's nothing to worry about. It taps and vibrates against a panel in the car, and that's why its so noticeable. When my car was being tuned, they detached and relocated it so that it cant touch the panel, and therefore the clicking noise was decreased to the point where its barely noticeable, only some times you hear it. I think they just cable tied it to one of the battery leads.

Get a custom tune, well worth the money spent!! Good luck!

[Street Tuner]

I did actually answer in this thread already...but maybe it was in the other double posted one. Regardless.

What you have there is an early version of the generic map which used pure wastegate valve duty cycle control to determine boost, meaning that the output of the boost controller will never actually be constant over the length of the power run.

Later versions (and that must be heading to three months + old now) will maintain the desired boost across the entire operating range and therefore make more top end power. Probably best to send your box back to CAPA for a tune update if you arent going down the custom tune path.

[Johnny G]

Drop off in the top end is (possibly) valve springs not handling the pace. Had mine done a couple of days ago (set of new PS BA100 Performance Springs) and the difference is palpable. Low end torque and top end just open up on the 10lb map, and 8lb is perfect for round town mode. Have to wonder about the standard springs now - my guess is that they give up the ghost on anything but the factory 5lb.... they just aren't up to the task. In for the custom workup at PTE soon. Heaps of other threads on this....

John

[O2STOCK]

I dont know why there are two threads I hope it was nothing I did when I generated the original post ?

Thanks for the input guys the maximun RWKW I am after is around 240 - 250 nothing to high compared to the levels other members have achieved.

I hope later on I dont eat these words as the quest for power seams very catchy

I think the error is in the maps despite the fact that CAPA have sent all four versions of the maps 2 8PSI 2 10PSI may be they clicked on the wrong folder before sending ?

I would hope not as motors are not cheap items to repair.

Lucky Von at FIST PERFORMANCE, prevented the last map sent from CAPA from destroying the engine at 16+ PSI and AFR's that could only do one thing

[dingah2]

  Johnny G said:

Drop off in the top end is (possibly) valve springs not handling the pace. Had mine done a couple of days ago (set of new PS BA100 Performance Springs) and the difference is palpable. Low end torque and top end just open up on the 10lb map, and 8lb is perfect for round town mode. Have to wonder about the standard springs now - my guess is that they give up the ghost on anything but the factory 5lb.... they just aren't up to the task. In for the custom workup at PTE soon.  Heaps of other threads on this....

John

<{POST_SNAPBACK}>

Johnny:

Judging by my case the drop off when one or more valve springs finds the going tough is much less subtle than that , it's more of a severe drop off up to 70RWKW.

Dingah

[ColinT]

This is a Chart I found when looking into what to expect from a cusom tune on a standart XR6T with only edit.

I know its not exactly what you have but I think you will notice the difference between CAPA std maps and what a custom tune can do for you.

I'm hoping for this sort of results soon.