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Handling, Suspension and Wheels / Re: Steering wheel vibration
« Last post by electric geen on Yesterday at 19:30:36 »
Did you take any pictures of the top mounts when you changed the shocks and springs - they could be perished - mine are, are your shock absorber bump stops in place? The crashing when hitting bumps is usually shocks gone (or too weak for strong springs) or play in the top mounts (25 year old rubber).
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Calibra Projects and Builds / Re: C20NE Turbo
« Last post by electric geen on Yesterday at 19:07:11 »
U need a proper camshaft, ain't u ask to Cat/Kent..... for a correct timed one?

Yes, I need a camshaft with low or zero overlap between the exhaust valve closing and the intake valve opening or the turbo high pressure mixture charge gets blown out the exhaust (backfire) Cat cams is a real possibility as they can grind cams to order and they have up rated valve springs too, to stop float at around 5000 rpm (spring seats might need machining though). The stock cam is for injection but normally aspirated, good to about 200hp.
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Calibra Projects and Builds / Re: C20NE Turbo
« Last post by greendream on Yesterday at 12:18:33 »
U need a proper camshaft, ain't u ask to Cat/Kent..... for a correct timed one?
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Calibra Projects and Builds / Re: C20NE Turbo
« Last post by electric geen on February 17, 2019, 22:36:20 PM »
Hi all

Just an update, managed to get some c20get +0.75mm pistons made by sealed power, cast not forged but not going to exceed 6500 rpm anyways. Delivered were £78 from the USA. ordered rings for them plus new hydraulic lifters. Going to send the 20E head to have the new valve guides pushed in, then grind the valves into their seats after a bit of porting and polishing next weekend. Last on the list is some ARP bolts from the USA again for £47 instead of the rip off £80 on egay and elsewhere. I am going to use the 8v rods (shot peened) which will be good to 300Hp with ARP-s and the rev limit, the conrods are only experiencing extra compression forces not G forces of extended revolutions - I don't get the obsession with RPM on a street car,  the calibra´s don´t have variable cam timing. I would rather pull a higher gear with more torque - discuss....

I have heard the diesel version of the followers are stronger than the petrol version, anyone done this?

Apart from a full gasket set and full bearing set and machining the bores and maybe the crank, I am good to go.

I managed to get a full engine plus gearbox plus spare inlet manifold and all ancilliaries from Milo in Sheffield - the go to guy for Calibra parts.
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Handling, Suspension and Wheels / Re: Steering wheel vibration
« Last post by TURBOHEAD on February 13, 2019, 21:48:16 PM »
Hi wim.

Don't worry about keep coming back with more questions.........we are as keen as you to try to resolve your problem.   You are very dedicated to your car and we can all understand that.    I have now reached a point that I cannot think of any thing else you can try. :-\

Do you know or have some friend that owns a Calibra so you could drive their car along the same route to see if it reacts to bumps etc.??
Have you been to your nearest Opel/Vauxhall dealer to see if they can help??

Sometimes a fault when driving can amplify the problem in ones mind because you are acutely aware of it every time you get into your car.

It would be valuable if you could get a mechanic to drive your car.....but don't tell him what you know of the problem........and see if after a test drive he comments about the same bumpy ride etc that you are experiencing. ??

So by not alerting him to what you know of the problem......he will comment independently. If that makes sense??

Good Luck.
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Calibra Chat / Re: Fuel problem
« Last post by TURBOHEAD on February 10, 2019, 11:57:06 AM »
Hi

You seam to have ruled out the fuel pump for now......fuel filter and relays etc ok.   This may be a long shot but check the earth wires attached to the fuel rail.....they could be loose but not sure if this is would effect operation.

When you turn the Ignition key to start your car.......power is sent to the fuel relay.......maybe there is a wiring problem here.  The contacts in the electrical switch part of the ignition is mounted on the opposite side of the ignition key barrel and turns when the key is turned.   You could fit a new switch to see if this is the problem.  Good Luck

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Calibra Chat / Re: Fuel problem
« Last post by AlexBrasovCalibra on February 10, 2019, 11:35:27 AM »
Hi. I checked the fuel filter flow... Same with the old one,  relay for pump it's new and I have power on both of wires.
I made one easy test... I take the pump out,  fit one hose in one fuel bottle and with 2 wires from battery,  works properly,  suck the fuel and push outside from bottle.
When I fit the pump on the right place,  don't take the fuel out from tank or bottle. 
 I suspected it's one electrical problem,  with the old pump before start the car I should switch ignition on /off for 5 times to start the car.
Relay works,  I fit a new fuse... I can't understand.
Thanks
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Handling, Suspension and Wheels / Re: Steering wheel vibration
« Last post by wim_vg on February 10, 2019, 10:35:36 AM »
Thanks once more for continiung to provide me with good advice! Sorry to keep coming back to this over and over... consider it as a strong will to keep driving my beloved car ;)

As far as I can tell, just by attempting to turn the bolts in any direction, they are sitting tight. This goes for both the front and back lower arm bolts, as well as the subframe bolts that I showed on the pictures. Should I untighten and retighten to be sure? Not sure if there is any risk of doing that, so want to be sure...

Wish I could make a close-up video of how everything interacts in the suspension when hitting a bump :)

From what I can tell, I should also rule out bump steer. I think this would normally have to show as well when driving over a smooth bump, but it does not. The steering wheel only seems to shudder on 'impact'.

Cheers again!
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Calibra Chat / Re: Fuel problem
« Last post by TURBOHEAD on February 09, 2019, 19:26:43 PM »
Hi

I would check the fuel filter......there are fuel direction of flow arrows marked on the filter.......the arrows should be aligned the correct way.

Next you need to check that there is a live feed going  into the fuel pump and that you have the positive and negative wire the right way around.
Also locate the fuel relay and place your fingers on top with ignition on.......you will be able to feel the relay clicking as the contacts inside connect.  If not you need to replace the fuel relay. Also don't forget to check the fuse.
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Calibra Chat / Fuel problem
« Last post by AlexBrasovCalibra on February 09, 2019, 15:40:26 PM »
Hello,  everyone!
I just fit a new fuel pump and new fuel filter,  and I have a problem with all this stuff.  I don't have any fuel on ramp injection, it looks like fuel pump ( external one) don't get any fuel from tank.
Can somebody give me any advice?
Car is 2.0 redtop,  c20xe engine
Many thanks
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