B4VR6 193 Posted June 3, 2015 Report Share Posted June 3, 2015 I'm planning on making my car a 3.0L turbo tuning a L.S.D. So will be a stage 2 map running about 450 bhp. Is this going to be wise on a front wheel drive car. I have a genuine vr passat so going to keep with the 2.8 12v concidering how rare these cars are. And I'm worried that there's going to be no traction. Who's running big bhp and can tell me how there cars are running. Thanks. Quote Link to post Share on other sites
Mk3highline 287 Posted June 3, 2015 Report Share Posted June 3, 2015 Anything over 400bhp through gearbox is on borrowed time so I've heard But usually any diff will be alright just keep away from the likes of OBX Best one out there is the wavetrack imo Quote Link to post Share on other sites
B4VR6 193 Posted June 3, 2015 Author Report Share Posted June 3, 2015 Yeah I've read that the gearbox can only take 400bhp. I'm going to get a progressive map done rather than an aggressive one to try and prolong the life of things like drive shafts etc. Quote Link to post Share on other sites
CALICO 130 Posted June 4, 2015 Report Share Posted June 4, 2015 Its about how you drive it as well if your 1/4 mile racing you will knacker the box if you use it overtaking speeds then less strain oliver cox 1 Quote Link to post Share on other sites
oliver cox 71 Posted June 4, 2015 Report Share Posted June 4, 2015 just dont drive it like you have stole it.these old girls have had 20 plus years of pain just cruise Quote Link to post Share on other sites
B4VR6 193 Posted June 4, 2015 Author Report Share Posted June 4, 2015 It's not going to be driven hard Most of the time it's driven on the motorway and on weekends. For example the last time it moved was Sunday evening from a 100 mile run. Use a van daily for work. So it's a weekend toy really Quote Link to post Share on other sites
Mk3highline 287 Posted June 5, 2015 Report Share Posted June 5, 2015 Stupid question but Is the gearbox the same as the one in the golf vr6? Quote Link to post Share on other sites
B4VR6 193 Posted June 5, 2015 Author Report Share Posted June 5, 2015 Yeah I think so. Quote Link to post Share on other sites
FishWick 21 Posted June 15, 2015 Report Share Posted June 15, 2015 Traction is a problem in the wet, even with a diff, but it's by no means unusable on the road. Just have to be smooth with the throttle and roll into the boost rather than nailing in 1st and 2nd! Having said that, 3rd & 4th and even 5th can break traction on the move if the torque curve is spikey. I had my standard VR6 box rebuilt at 130K (new bearings, syncros etc) and then did a further 60K with a turbo and it survived just fine. I was only putting 350lbft through it though + some mechanical sympathy. Avoid nailing the gas on uneven road surfaces because it's the shock of regaining grip after a spin that tends to make the gears bald all of a sudden. Quote Link to post Share on other sites
B4VR6 193 Posted June 15, 2015 Author Report Share Posted June 15, 2015 Traction is a problem in the wet, even with a diff, but it's by no means unusable on the road. Just have to be smooth with the throttle and roll into the boost rather than nailing in 1st and 2nd! Having said that, 3rd & 4th and even 5th can break traction on the move if the torque curve is spikey.I had my standard VR6 box rebuilt at 130K (new bearings, syncros etc) and then did a further 60K with a turbo and it survived just fine. I was only putting 350lbft through it though + some mechanical sympathy.Avoid nailing the gas on uneven road surfaces because it's the shock of regaining grip after a spin that tends to make the gears bald all of a sudden.When I eventually do the turbo conversion I want a smooth map doing. I don't want it aggressive. As it'll be a road car mostly. Quote Link to post Share on other sites
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