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Model specific boards => Golf mk4 => Topic started by: Broomers-GTi on 16 July 2011, 22:33

Title: Queston about a 1.8 Turbo ?
Post by: Broomers-GTi on 16 July 2011, 22:33

Is theere such thing as turning up ur turbo? like turning up the "Boost" ???

Thanks Phil

1.8T 2002 GTi 20V

Title: Re: Queston about a 1.8 Turbo ?
Post by: RTechUK on 16 July 2011, 22:43

Quote from: Broomers-GTi on 16 July 2011, 22:33

Is theere such thing as turning up ur turbo? like turning up the "Boost" ???

Thanks Phil

1.8T 2002 GTi 20V

It can be turned up a around 2psi 15lbft 15/20bhp and be safe and fuel save and still be with in the maf deviation limit map, exceed the maf diagnose limiter map and it will flag a light and limp mode, the ecu wont let you run too much extra/over boost. If you up thr boost too much the throttle plate will cut back to limit the flow,and/or the ecus 2nd line of over boost control will kicking, the N249 will trigger the open up the dump valve to bleed the boost off.  Its lots of trial and error finding the right setting to get most power with out codes or throttle cut.

The best way would be have the ecu mapped, this way you can get a kick of power down low and have more running added so the turbo ain't doing all the work, On a good running engine your car should see 200-210bhp 225lbft.

Nick

Title: Re: Queston about a 1.8 Turbo ?
Post by: Broomers-GTi on 16 July 2011, 22:53

Ohrite thanks for that Nick, u no an awfull lot haha, but very knowlageable

so can i turn up the boost mmyself? if so how?

Cheers :-]

Title: Re: Queston about a 1.8 Turbo ?
Post by: Wazzzer on 16 July 2011, 22:54

oi answer your PM you  :grin:

Title: Re: Queston about a 1.8 Turbo ?
Post by: RTechUK on 16 July 2011, 22:55

Quote from: Broomers-GTi on 16 July 2011, 22:53

Ohrite thanks for that Nick, u no an awfull lot haha, but very knowlageable

so can i turn up the boost mmyself? if so how?

Cheers :-]

MBC  :wink:

Title: Re: Queston about a 1.8 Turbo ?
Post by: Broomers-GTi on 16 July 2011, 22:59

Havnt recived anythink yet Wazzer?

Title: Re: Queston about a 1.8 Turbo ?
Post by: Wazzzer on 16 July 2011, 23:06

Sorry mate not you  :embarassed:

Title: Re: Queston about a 1.8 Turbo ?
Post by: Broomers-GTi on 16 July 2011, 23:20

lol, thts ok chap.

Title: Re: Queston about a 1.8 Turbo ?
Post by: Ant1981 on 17 July 2011, 03:30

Quote from: RTechUK on 16 July 2011, 22:43

On a good running engine your car should see 200-210bhp 225lbft.

Nick

Is there much you'd need to do to the car before the map to gain those figures?

Title: Re: Queston about a 1.8 Turbo ?
Post by: RTechUK on 17 July 2011, 08:47

Quote from: Ant1981 on 17 July 2011, 03:30

Quote from: RTechUK on 16 July 2011, 22:43

On a good running engine your car should see 200-210bhp 225lbft.

Nick

Is there much you'd need to do to the car before the map to gain those figures?

For stage1 we roccomend a good air filter, upwards dv and to run super unleaded / v-power.  So tunes tell you to fit an N75j valve but all this does is make the car over boost in initial spool up.

As long as your car is running ok , no boost or PVC leaks and the actuator has enough load left in the spring then 200-210 is easy on the cards.