NigelO Posted April 4, 2018 Author Share Posted April 4, 2018 sorted - four ordered at £280 delivered - thanks for all the help Quote Link to comment Share on other sites More sharing options...
CosKev Posted April 4, 2018 Share Posted April 4, 2018 3 hours ago, NigelO said: Not sure how old the tyres are - pretty sure they are more than three years old, possibly even older (the car has only done 89 miles since October 2015 and only 3200 since October 2013) Geometry was set up properly by ProComp in 2011, but is probably overdue a tweak. There's a couple of settings that are making me scratch my head - caster is 2.25 degrees on the left and only 0.75 degrees Check the 4 digit manufacture code on the sidewall to see how old they are Is castor adjustable? Pretty sure only camber and toe are adjustable? Quote Link to comment Share on other sites More sharing options...
Dave Eastwood (Gadgetman) - Club Chairman Posted April 4, 2018 Share Posted April 4, 2018 No castor isn't adjustable on normal Westfield suspension. Though a few companies, including Westfield themselves, years ago, have made race wishbones with rose joints, where it was. Thats a massive left right castor difference and not right, I'd have said. Because of the lack of adjustability, there's usually some difference, but that's crazy. 1 Quote Link to comment Share on other sites More sharing options...
mr_mcp Posted April 4, 2018 Share Posted April 4, 2018 Is one of your top wishbones around the wrong way? Quote Link to comment Share on other sites More sharing options...
Dave Eastwood (Gadgetman) - Club Chairman Posted April 4, 2018 Share Posted April 4, 2018 Doh, just had a thought, where did this castor measurements come from? Its normal to set a Westfields suspension geometry up with simulated drivers weight on board, so if you measure without, you can get some weird and very unbalanced results, especially if there's been some settlement and drift over the years. Quote Link to comment Share on other sites More sharing options...
Dave Eastwood (Gadgetman) - Club Chairman Posted April 4, 2018 Share Posted April 4, 2018 Having just had a look at the geo sheets for my two Westfields, the front castor has generally been high 5 degrees to just over 6 degrees and within about 0.3 degrees each side. Quote Link to comment Share on other sites More sharing options...
NigelO Posted April 4, 2018 Author Share Posted April 4, 2018 I've left a message with ProComp today - no reply yet The lack of caster would account for the "lively" feeling - I generally prefer quite a strong self-centring effect, so I'll be looking into ways of getting a higher figure FWIW, I understand the car was corner-weighted with a 75kg driver on board, but that couldn't account for the lack of caster on the driver's side Quote Link to comment Share on other sites More sharing options...
SootySport Posted April 8, 2018 Share Posted April 8, 2018 As said, 195 tyres are fine. R1rs are not generally available in the U.K. Due to their non Green credentials. Have a look on EBay and the German retailer Oponeo, you'll find them somewhere. Quote Link to comment Share on other sites More sharing options...
Steve (sdh2903) Posted April 8, 2018 Share Posted April 8, 2018 On 4/4/2018 at 19:53, NigelO said: I've left a message with ProComp today - no reply yet The lack of caster would account for the "lively" feeling - I generally prefer quite a strong self-centring effect, so I'll be looking into ways of getting a higher figure FWIW, I understand the car was corner-weighted with a 75kg driver on board, but that couldn't account for the lack of caster on the driver's side Matt at procomp has been very unwell and has only just got back to work and is prioritising his race car commitmemts at present. So believe he's not taking any more customers on until he's caught up so may be a while before you hear back. Quote Link to comment Share on other sites More sharing options...
NigelO Posted April 8, 2018 Author Share Posted April 8, 2018 2 hours ago, sdh2903 said: Matt at procomp has been very unwell and has only just got back to work and is prioritising his race car commitmemts at present. So believe he's not taking any more customers on until he's caught up so may be a while before you hear back. OK - thank for the update - I'm definitely not an urgent case, so I'll hang on for now Quote Link to comment Share on other sites More sharing options...
NigelO Posted April 8, 2018 Author Share Posted April 8, 2018 UPDATE - turns out the T1-Rs currently fitted aren't six years old - they're NINE years old.... R1-Rs will be fitted very soon 2 Quote Link to comment Share on other sites More sharing options...
CosKev Posted April 8, 2018 Share Posted April 8, 2018 1 hour ago, NigelO said: UPDATE - turns out the T1-Rs currently fitted aren't six years old - they're NINE years old.... R1-Rs will be fitted very soon No wonder they are slippy!!!! Quote Link to comment Share on other sites More sharing options...
BugMan Posted April 9, 2018 Share Posted April 9, 2018 Yikes, had no idea they had been around that long? Quote Link to comment Share on other sites More sharing options...
NigelO Posted April 9, 2018 Author Share Posted April 9, 2018 5 hours ago, BugMan said: Yikes, had no idea they had been around that long? I've been using T1-R on my Fiat Coupe for 15 years - they were fine while the car was close to standard, but they are overwhelmed now and hopelessly outclassed by newer design tyres. I image they will be replaced by Yokohama AD08R Quote Link to comment Share on other sites More sharing options...
Kevin Wood Posted April 10, 2018 Share Posted April 10, 2018 I use AD08s on my Westfield and have been happy with them. Quote Link to comment Share on other sites More sharing options...
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