LAPCAT Posted October 6, 2021 Share Posted October 6, 2021 Hello,Looking for some sound opinion and advice.Last car was a 2007 Sigma superlight S3 (160hp) powered car on Nitron R1. It was my first car and probably underestimated how well it rode for fast road work in Scotland, no track work.This year sold and bought a 2017 620S SV on standard Bilsteins. Yes the power is lovely but feel something has been lost for me on the feel overall. If I call it less settled and loss of tactile in corners it would describe well.The question is whether placing the 620s on R1s to get some damping control would be a good move? Could I get some of that delicacy back or have i got the wrong car for that? (almost thought about changing to CSR which was my original target)I have removed the rear exit exhaust and put on Raceco side exit, so no pipework underneath. No track days but still not too mega noise.Thank youLaurence Link to comment Share on other sites More sharing options...
david nelson Posted October 7, 2021 Share Posted October 7, 2021 Laurence Give Simon Rogers at Raceshocks a call. I was in there a few weeks ago and they were changing dampers on a 620 sv. I am sure he will be able to help. Link to comment Share on other sites More sharing options...
cobar Posted October 7, 2021 Share Posted October 7, 2021 I spoke with Simon in August about my upcoming build which will have power levels about midway between the 420 and 620. My concern wasn't ride quality but traction on less than perfect pavement. He recommends softer spring rates than fitted by the factory with the bigger difference in the rear rates. He also suggests a mix of digressive valving and progressive springs for road use. He's a very knowledgeable and helpful person. Might be worth your time reading this buying guide PDF on his website then calling him to discuss your specific needs. https://www.raceshocks.uk/wp-content/uploads/2021/07/Sportscar-Suspension-Recommendations-July-2021.pdf.pdf-John Link to comment Share on other sites More sharing options...
Tom_Arundel Posted October 7, 2021 Share Posted October 7, 2021 Don`t forget 620 is significantly heavier ( maybe 70 Kgs ) than the sigma so will never feel the same, especially at the front end. Link to comment Share on other sites More sharing options...
Simon.Rogers Posted October 11, 2021 Share Posted October 11, 2021 Always up for a chat if you need to ask some questions.No obligations just free information. Link to comment Share on other sites More sharing options...
BigCol Posted October 14, 2021 Share Posted October 14, 2021 Simon's free information tends to end up quite expensive! (but great value - love my Quantums!)) Link to comment Share on other sites More sharing options...
Simon.Rogers Posted October 16, 2021 Share Posted October 16, 2021 Next delivery of CORE Suspension arrives Monday and there are only 2 sets left.We have already ordered the next batch. Everyone who has tried these loves them. Link to comment Share on other sites More sharing options...
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