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  1. #1
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    Any idea where my powers gone ?

    For those of you who were at the RR day yesterday you would have seen my car embarrass itself and post a very low 253.0 bhp

    This time last year it was a whole 4.1 bhp more and since then I have a new RICA 310 map a Forge recirc valve and Volvo TCV amongst other things.

    The car now has a fair bit more torque 311.9 ft/lb compared to 274.0 ft/lb and drives well on the road, but.....as you can see from the graphs below this years has a dip around 3300 rpm which for those who weren't there yesterday was accompanied by 'chattering' sound.

    Do any of you have any idea where I should be looking, maybe a new Forge actuator is on the cards as it's never been changed and I've been told the diaphragm can go in these, along with maybe an IPD TCV, anyone use these items ?

    Hopefully someone can point me in the right direction, help as always greatly appreciated.

    Last years graph.



    Yesterday's graph.



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    I blame the flat cap also the heavy duty bcs could be at fault with the dip in the graph also I my self have seen what different maps can produce on different cars I wouldnt be too unhappy as with the tourqe your pulling it should feel and drive really well

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    Quote Originally Posted by t5 pete View Post
    I blame the flat cap also the heavy duty bcs could be at fault with the dip in the graph also I my self have seen what different maps can produce on different cars I wouldnt be too unhappy as with the tourqe your pulling it should feel and drive really well
    It can't be the cap, you Northern lads have no problems lol.

    The TCV we put on last year was a genuine Volvo one, the chattering did seen to start then, just wondering a) if the uprated IPD one would be a good idea and b) if the actuator may well need replacing.


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    In recon it's the air filter, when you decide to sell it, can I have first dibs
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    V70 Graham (Sunday 9th February 2014)

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    Quote Originally Posted by claymore View Post
    In recon it's the air filter, when you decide to sell it, can I have first dibs
    Hahahaha nice try mate.


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    I think the power went with your last exhaust.

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    V70 Graham (Sunday 9th February 2014)

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    it can only be the tcv or actuator imo. I've always been suspicious of the tcv, I've never heard one that loud before. I have a nearly new one we could try and I could test the actuator to see if it's leaking or sticking.
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    Quote Originally Posted by M-R-P View Post
    it can only be the tcv or actuator imo. I've always been suspicious of the tcv, I've never heard one that loud before. I have a nearly new one we could try and I could test the actuator to see if it's leaking or sticking.
    Sounds correct to me, the torque seems to drop off so maybe the boost isn't holding

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    Quote Originally Posted by claymore View Post
    In recon it's the air filter, when you decide to sell it, can I have first dibs
    if its a BSR one you could well be right as mine was restricting power and air flow at anything over 290bhp
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    ive never heard a Bcs/tcv bleed of like that when boosting, id be changing that 1st as its very quick and easy, then adjust the actuator. But above all id certainly be fitting a Boost gauge so you can see exactly whats going on.

    Tbh the turbo actuator should still be fit seeing your car is very low mileage.

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    V70 Graham (Sunday 9th February 2014)

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    Quote Originally Posted by deathrider311271 View Post
    if its a BSR one you could well be right as mine was restricting power and air flow at anything over 290bhp
    It's not Simon, it's a new 'Ramair' one and I think Colin is trying to get his hands on it.


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    M-R-P might (if he gets time) post up a clip of my car on the rollers yesterday so you can hear the 'chatter'


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    Quote Originally Posted by t5 pete View Post
    I blame the flat cap.....
    Quote Originally Posted by claymore View Post
    In recon it's the air filter, when you decide to sell it, can I have first dibs
    Quote Originally Posted by stribo View Post
    I think the power went with your last exhaust.
    Don't ya just love all the great technical help you get on VPC lol


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    Quote Originally Posted by V70 Graham View Post
    Don't ya just love all the great technical help you get on VPC lol
    Always glad to help oh just had a thought if we ever get some stickers it may regain your power the flat cap has lost

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    Quote Originally Posted by t5 pete View Post
    Always glad to help oh just had a thought if we ever get some stickers it may regain your power the flat cap has lost
    I give up....


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    Quote Originally Posted by V70 Graham View Post
    Don't ya just love all the great technical help you get on VPC lol
    You should know that by now.

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    Quote Originally Posted by t5 pete View Post
    Always glad to help oh just had a thought if we ever get some stickers it may regain your power the flat cap has lost
    What stickers are you wanting?

    Quote Originally Posted by M-R-P View Post
    it can only be the tcv or actuator imo. I've always been suspicious of the tcv, I've never heard one that loud before. I have a nearly new one we could try and I could test the actuator to see if it's leaking or sticking.
    Looking at the latest graph Id have to agree
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    Quote Originally Posted by Santa View Post
    What stickers are you wanting?



    Looking at the latest graph Id have to agree
    I would like the out line of the estate pretty please, oh Santa I have been good this year "up to now"

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    As previously said, BCS or actuator but we'd already touched on that yesterday


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  29. #20
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    Quote Originally Posted by t5 pete View Post
    I would like the out line of the estate pretty please, oh Santa I have been good this year "up to now"
    I can sort that, please drop me a pm
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