Author Topic: Lots of boost  (Read 3066 times)

denty225

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Lots of boost
« on: 20:03, Sun 11 September 2011 »
From day 1 my car has been running lots of boost. I've been driving it very steady because of this so I don't blow anything, but I can't get to the bottom of it. Ive replaced the head cos the plugs threads were stripped, and all the pipes seemed to be in good condition when replacing. All clips were replaced too. I've fitted a replacement actuator but still have the same problem. The boost will go off the dash gauge easily without full throttle! Where shoudl I look next? I want standard boost!

Any idea is welcome.

Paul.

markey mark (bd)

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Re: Lots of boost
« Reply #1 on: 20:08, Sun 11 September 2011 »
Do you have any sort of bleed valve on the engine?

If not do you know how much preload is on the actuator?
BD Autosport - Renault 5 gt turbo tuning and repairs.

Ash-Lee

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Re: Lots of boost
« Reply #2 on: 22:45, Sun 11 September 2011 »
Is the actuator mechanism jammed shut in anyway? Can you move it by hand?

denty225

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Re: Lots of boost
« Reply #3 on: 18:29, Mon 12 September 2011 »
Mark. No and I don't know!

Ash. Yes both actuators can be moved with a bit of effort.

fordy

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Re: Lots of boost
« Reply #4 on: 18:40, Mon 12 September 2011 »
actuator pipework all ok and correct?
what carb top have you got?
get some pictures up  :D

markey mark (bd)

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Re: Lots of boost
« Reply #5 on: 18:41, Mon 12 September 2011 »
Quote from: "denty225"
Mark. No and I don't know!

Ash. Yes both actuators can be moved with a bit of effort.

How much did you have to move the actuator eyelet to get it to fit over the lever on the turbo?
BD Autosport - Renault 5 gt turbo tuning and repairs.

denty225

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Re: Lots of boost
« Reply #6 on: 20:56, Mon 12 September 2011 »
Errr, I will get some pics up tomorrow :D

denty225

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Re: Lots of boost
« Reply #7 on: 19:59, Thu 15 September 2011 »
Finally remembered to take some pics!




See owt wrong?

markey mark (bd)

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Re: Lots of boost
« Reply #8 on: 22:43, Thu 15 September 2011 »
The pipework looks ok, i bet preload on the actuator is too much. Take the actuator arm off the wastegate lever and lengthen the rod abit, that will reduce the boost
BD Autosport - Renault 5 gt turbo tuning and repairs.

denty225

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Re: Lots of boost
« Reply #9 on: 16:59, Fri 16 September 2011 »
I'll give that a go, cheers. I need ot get rid of that bloody dump vlave, it's doing my head in!

dj_craig_

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Re: Lots of boost
« Reply #10 on: 19:52, Fri 16 September 2011 »
Quote from: "denty225"
I'll give that a go, cheers. I need ot get rid of that bloody dump vlave, it's going my head in!
:lol:  what type is it mate an how much you want for it ?

denty225

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Re: Lots of boost
« Reply #11 on: 13:55, Sat 17 September 2011 »
Quote from: "dj_craig_"
Quote from: "denty225"
I'll give that a go, cheers. I need ot get rid of that bloody dump vlave, it's going my head in!
:lol:  what type is it mate an how much you want for it ?

Err, I dunno. You got an uncut top pipe? I might do swapsies.

dj_craig_

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Re: Lots of boost
« Reply #12 on: 13:59, Sat 17 September 2011 »
no sorry mate.

denty225

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Re: Lots of boost
« Reply #13 on: 19:29, Sun 18 September 2011 »
No probs, if I can sort the pipe out you can have the DV. I hate it!

DeanGT5

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Re: Lots of boost
« Reply #14 on: 21:11, Sun 18 September 2011 »
I have a length of 2" alloy you could use instead of the T piece.