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Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt

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7 hours ago, Bling said:

Flaring guards not an option? Cheaper than buying new wheels like I did, to get a tyre / wheel combo I wanted. For cert anyway, which I assume this is for. 

Will be rolling the guard lips but keeping the exterior factory. Haven't finished the suspension set up but the rims should be very close to the guard and I don't want any tire protruding past the rim. Have searched a few tire manufacturers and seems I can only go down to a 195/45r15 on a 15 x 7 wheel.

Need to find some pics now of that wheel and tire combo to see how it looks.

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Here's a picture which miiiiight help. 

These are 14s, Falken 195/45R14 all round 

Rear wheels are 7.5, Front wheels are 6.5.

Gives you an idea of what to expect.  Somewhere in between the two. 

They're almost square on the front and stretched slightly on the rear so yeah.   Split the difference? 

IMG_20120912_164320.jpg

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Just now, weetbixkid said:

Silly Question but can you fit a BOV to an Automatic Gearboxed Turbocharged Engine? 

Yep, should have one factory fitted. What car is it?

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Yes. Generally standard petrol turbos in both auto and manual will have a bov. 

Edit - beaten by the man with an au profile pic

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3 minutes ago, 00quattro00 said:

Yep, should have one factory fitted. What car is it?

A friend brought a Audi A3 1.8T 1999 Model with a AUG (??) engine.

 

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2 minutes ago, mjrstar said:

Yes. Generally standard petrol turbos in both auto and manual will have a bov. 

Edit - beaten by the man with an au profile pic

Thanks for the answer!

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7 minutes ago, weetbixkid said:

A friend brought a Audi A3 1.8T 1999 Model with a AUG (??) engine.

 

It will have a diverter valve that recirculates as if you fit a bov that vents to atmosphere it will cause running problems as you are dumping air that the ecu has measured

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2 minutes ago, 00quattro00 said:

It will have a diverter valve that recirculates as if you fit a bov that vents to atmosphere it will cause running problems as you are dumping air that the ecu has measured

Ok, i think i understood that, but just so I tell him correctly. He cant have an external dumping valve cause the car already has messured the air and will run poorly if he does?

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2 minutes ago, weetbixkid said:

Ok, i think i understood that, but just so I tell him correctly. He cant have an external dumping valve cause the car already has messured the air and will run poorly if he does?

Correct.

 

The factory valves don't last forever. If you here a fluttering noise when lifting off on boost it will need replacing. Genuine ones are not expensive

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1 minute ago, 00quattro00 said:

Correct.

 

The factory valves don't last forever. If you here a fluttering noise when lifting off on boost it will need replacing. Genuine ones are not expensive

Ok cool thanks, I am sure he wanted the classic Psst style noise when he lifts off the throttle. 

 

thanks for the help

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2 hours ago, 00quattro00 said:

It will have a diverter valve that recirculates as if you fit a bov that vents to atmosphere it will cause running problems as you are dumping air that the ecu has measured

It'll just run rich for a second after it has blown off. Otherwise it'll be fine.

On a manual it'd make a little pop on gear change, sometimes a small flame out the tail pipe. Looks and sounds good.

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Could plumb back a bov post air flow meter? That what I have on my air flow metered turbo.  That way no idle issues if there is a slight leak across the seat under vacuum. 

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Ok thanks guys, I have had a chat to him, he cant drive manual due to an issue with his left foot so is stuck on Automatic gearboxes only.

He really wants the turbo sound so have passed on your feedback to him.


He is also going to fit an S2000 airfilter which is a drop in replacement for the AUG engine and is meant to give a nice 1-2hp gain.

Where would the best place to buy one? I have put a circle around the type he needs, needs to be an OEM paper one.

Inkednull_zps8e6c0b41_LI.jpg

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Tell him to block off the BOV, then he can Phil Collins Su-Su-Sututututu around

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Lol.  Unless your mate is going to the effort of putting a cold air box around that filter, he's going to lose power.   

It may sound a bit throatier, but no performance gains to be had in that application.

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57 minutes ago, weetbixkid said:

Ok thanks guys, I have had a chat to him, he cant drive manual due to an issue with his left foot so is stuck on Automatic gearboxes only.

He really wants the turbo sound so have passed on your feedback to him.


He is also going to fit an S2000 airfilter which is a drop in replacement for the AUG engine and is meant to give a nice 1-2hp gain.

Where would the best place to buy one? I have put a circle around the type he needs, needs to be an OEM paper one.

Inkednull_zps8e6c0b41_LI.jpg

Just tell him to stop wasting his time. 

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I've just used autosol metal polish in a couple of places I probably shouldn't have with great results (so far, may yet end up in the disaster thread).

 

-Clear yellowed plastic, looks like new now. Will see how it lasts.

Unpolished headlight. This one looked clean and clear before I cleaned up the other side.IMG_20190228_112649.thumb.jpg.4f031c2e7b5e38be8780fb180c1c5132.jpg

Side polished with autosol.

IMG_20190228_112644.thumb.jpg.f2b761e8bafd04d57807012055527ec1.jpg

 

 

-Powder coated motorbike wheels, have done a small patch and looks really good. It has removed crap that carb cleaner and petrol wouldn't.

IMG_20190228_112609.thumb.jpg.06fd0784078629392f00f5bdf73a1040.jpg

Edited by a.craw4d
Now with pictures

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