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Got A Capa Box


one2c

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  • Member For: 17y 2m 1d

hey guys got a capa box on monday.....

the place I got it from is new to the capa box,all though they are veary good at tunning,and have done many of my cars before...

my car is a sep/03 auto,stock xr6t

we ran the car up on the dyno before and made 180rwkw

the car ran a 14.4 at 98mph a few weeks ago

and have raced my mates also stock xr6t as well and both are exactly the same in power

we first uploaded the generic capa 10psi tune...

ran it on the dyno and the car pinged and made 186rwkw,and stayed on the stock 4psi

so mucked around with it a bit and nothing would not boost...

tuner got the sh*ts after a while and said he will do a custom tune...I said ok

done it all and had to set the duty cycle on the car to 100% and still it only managed 8psi and dropped to 7...car made 219rwkw

I ended taking the car home and it wasnt what I expected

next day I filled the car up with same 98 as I do all the time...

gave the car a hit out of the servo and it leaned out

thought damn I got bad fuel

any ways later that day driving the car around gave it a hit and the thing was over boosting

so took it to a mates work shop and got him to change plugs and gap them to .8 and we cleaned the boost solynoid and it was over boosting more..

took it back to tuner and ran it up on dyno and the car was hitting 13psi by 3000rpm

so he tried to turn the duty cycle down to capas setting again and it then only stayed on 4psi again....

so we disconnected the boost solynoid and put in a T just to see if it would control the boost...

and nothing happend stayed at around 4-5psi

ran the car with nothing connected and it only stayed on 4psi

we did a whole heap of things with the car and its either stock boost or unlimited there is no in between...

now is the actuator stuffed or valve springs but looking at the graph its not the springs as the car makes smooth power to red line and runs fine...

and now we cant even get it to hold the original 7psi it had with the 219rwkw...

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  • Member For: 17y 11m 20d
  • Gender: Male
  • Location: SW Sydney

my guess is the actuator as you have already pointed out, your valve springs probably won't be too strong either, but I'd say this problem is coming from the actuator - how far do you want to push the car?

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  • Member For: 17y 2m 1d

I want to run about 9-10psi

thing is though we flashed the car back to stock and did a nother power run and it made 189rwkw...

im going to do more with the car but just wanted to see what it will do with a tune....

and on the road it didnt really feel like it was much quicker at all with 219rwkw then stock.

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  • Member For: 17y 9d
  • Gender: Male

I think tune house or something is down there. But yeah you definately must have a tuner with the capa software to tune the car mate. He might be a good tuner sure, but its the actual software needed 4 the flash box.

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