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Author Topic: DanGB's Leon Sport TFSI 4WD Sleeper - The End  (Read 97783 times)

Offline DanGB

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #195 on: June 05, 2013, 12:09:47 pm »
Ok, its fixed.
But i have a problem. The front tyres are far too grippy (R888's) causing the car to bog on launch big time. This means you can launch at any rev's, but it always falls down to 1-2k RPM, and the turbo has to spool again. I need to swap the tyres round so the Goodyears are on the front, to hopefully induce some slip on the front.

« Last Edit: June 05, 2013, 12:17:03 pm by DanGB »
Seat Leon Mk2 TFSI sport 4WD sleeper - Breaking
Buld thread: http://www.mk5golfgti.co.uk/forum/index.php/topic,45377.0.html

Offline Hurdy

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #196 on: June 05, 2013, 05:30:31 pm »
You should go with Goodyears all round for a decent launch for straight line work. For corners the R888's all round or on front. :smiley:
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Offline gazbutS3

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #197 on: June 05, 2013, 05:43:12 pm »
I wouldn't mix tyres front to rear, gets the haldex in a tiz apparently

Offline DanGB

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #198 on: June 05, 2013, 05:48:43 pm »
Gents, Ii cant see an issue with the 888's on the rear though? Why would there be?
Seat Leon Mk2 TFSI sport 4WD sleeper - Breaking
Buld thread: http://www.mk5golfgti.co.uk/forum/index.php/topic,45377.0.html

Offline rich83

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #199 on: June 05, 2013, 05:49:57 pm »
Just weld the haldex up and have done with it.  :happy2:

Offline Janner_Sy

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #200 on: June 05, 2013, 06:37:15 pm »
grippier rear tyres = understeer though.

When i was hooning and i mean reallu hooning the APR Golf R with its Hankook tyres, at no point did i think, this car really needs some R888s or semi slicks.  The only reason you need them on a FWD is purely to put the power down.

Offline gazbutS3

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #201 on: June 05, 2013, 07:22:26 pm »
Gents, Ii cant see an issue with the 888's on the rear though? Why would there be?

The S3 manual does tell you not to mix tyres

thinking out loud, the haldex only sends power to the rear when the front loses traction, so with mixed tyres with different grip would there be more switching of the power front to rear??????

Offline Hurdy

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #202 on: June 05, 2013, 07:33:25 pm »
grippier rear tyres = understeer though.

When i was hooning and i mean reallu hooning the APR Golf R with its Hankook tyres, at no point did i think, this car really needs some R888s or semi slicks.  The only reason you need them on a FWD is purely to put the power down.

^^^^^THIS^^^^^

maxxed out cornering on track would be the only reason to have semi slicks on a Haldex 4wd system, and even then if you mixed tyres front to rear, the grippier tyres should be at the front to ....

A) reduce the need for the grip and drive to have to be split to the rear
B) reduce understeer.

Having normal stret tyres like Goodyears on a 4WD Haldex car is even more beneficial as it does allow the traction to break a little on full bore launches and they have better overall grip in the wet. If you have 600bhp then just maybe you'll need semi-slicks. :smiley:
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Offline DanGB

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #203 on: June 06, 2013, 09:15:18 am »
Is it not beneficial to have the R888's on the rear to stop the rear breaking loose?

I dont intend to the replace the R888's, im just waiting for them to wear out tbh.
Seat Leon Mk2 TFSI sport 4WD sleeper - Breaking
Buld thread: http://www.mk5golfgti.co.uk/forum/index.php/topic,45377.0.html

Offline danishmkvgti

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #204 on: June 06, 2013, 01:54:43 pm »
Is it not beneficial to have the R888's on the rear to stop the rear breaking loose?

I dont intend to the replace the R888's, im just waiting for them to wear out tbh.

As the others has stated
grippy rear=understeer
grippy front=oversteer

 :happy2:

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Offline Jussa

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #205 on: June 06, 2013, 04:07:33 pm »
Ok, its fixed.
But i have a problem. The front tyres are far too grippy (R888's) causing the car to bog on launch big time. This means you can launch at any rev's, but it always falls down to 1-2k RPM, and the turbo has to spool again. I need to swap the tyres round so the Goodyears are on the front, to hopefully induce some slip on the front.



She's smoking a bit isn't she??
Unless mine does the same under full beans  :laugh:
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Offline Janner_Sy

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #206 on: June 06, 2013, 06:33:37 pm »

She's smoking a bit isn't she??
Unless mine does the same under full beans  :laugh:

I thought that looked like crap and dust being thrown up by the tyres.

Offline AndrewJB

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #207 on: June 06, 2013, 07:17:49 pm »
i think the TFSI engines do give a slight puff of smoke
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Offline DanGB

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #208 on: June 06, 2013, 08:59:02 pm »
Think its dust/gravel mainly. But, it is quite smokey - so much fuel pressure.
Seat Leon Mk2 TFSI sport 4WD sleeper - Breaking
Buld thread: http://www.mk5golfgti.co.uk/forum/index.php/topic,45377.0.html

Offline DanGB

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Re: DanGB's Leon Sport TFSI Sleeper - *4WD conversion = Done*
« Reply #209 on: June 06, 2013, 08:59:26 pm »
Erm, Think i'll be ditching my R888's

Seat Leon Mk2 TFSI sport 4WD sleeper - Breaking
Buld thread: http://www.mk5golfgti.co.uk/forum/index.php/topic,45377.0.html