alan.gilbert_6384 Posted August 28, 2022 Report Share Posted August 28, 2022 Hi All, Thought I would canvas some advise on dynamic advice timing, I am using super unleaded 95 RON, with an unleaded head on a 1500 spitfire. I have noticed pinking under loaded acceleration so reduced from the standard 10º BTD to 8º BTD. I still seem to have some pinking under loaded acceleration, and was wondering what everyone has, and do they also get the pinking ??? Thanks very much. Link to comment Share on other sites More sharing options...
johny Posted August 28, 2022 Report Share Posted August 28, 2022 Ahhh also a previously highly discussed topic and the advice found from Triumph is if I remember correctly: set your timing so any pinking stops by the time you reach 2000rpm when under full acceleration in 4th gear on the flat... Link to comment Share on other sites More sharing options...
Iain T Posted August 28, 2022 Report Share Posted August 28, 2022 Has it just started? Have you changed petrol suppliers? If you can try Tesco Momentum or Esso Synergy 99. Iain Link to comment Share on other sites More sharing options...
Andy Moss Posted August 28, 2022 Report Share Posted August 28, 2022 I think that 95octane is regular unleaded, but no matter. Worth trying some different super unleaded as Iain says. I always use 97 octane or above. Hope what Iain suggested solves your problem. 😃 Link to comment Share on other sites More sharing options...
Iain T Posted August 28, 2022 Report Share Posted August 28, 2022 Yes 95 Ron is old fashioned 3 star, all our cars were made to run on 5 star. It may be more expensive but you'll have to retard the ignition so much it could ruin the Triumph experience. Iain Link to comment Share on other sites More sharing options...
johny Posted August 28, 2022 Report Share Posted August 28, 2022 As I say though Triumph expected and accepted some pinking.... Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 28, 2022 Report Share Posted August 28, 2022 1 hour ago, alan.gilbert_6384 said: super unleaded 95 RON, something wrong there super 95 Nah !!! all the "super" and other named are 97 or better 95 is for side valves and motor mowers its bound to pink at factory static timing you need to retard it probably more 6 d than 8d then you loose power gain heat and its not how they are designed to run having an unlead head has no bearing on timing or fuel but it meeds to be better than 95 E10 many 97+E5 like esso has no E added at all. but the label has to say its got it so up the fuel you will gain MPG and run at the right power output Pete Link to comment Share on other sites More sharing options...
cliff.b Posted August 29, 2022 Report Share Posted August 29, 2022 I generally use Tesco Momentum in my 1500 Spit and happily running 14deg BTDC at tickover Link to comment Share on other sites More sharing options...
dannyb Posted August 29, 2022 Report Share Posted August 29, 2022 I also use tesco momentum in my Spit 1500. Timing was set up on rolling road 17 deg btdc. Danny Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 29, 2022 Report Share Posted August 29, 2022 i have always used sainbugs 97 in both the Vit6 and now the 2000 both set to 10 deg as per spec at 12 the 2000 does think about pinking often due to the vac unit being over advancing on a criuse , there are variety of vac specs available if you get a pink opening the taps from a cruise when the vac advance is at its most on some delco you can reduce the vac advance by adding a split fibre washer on the vac capsule piston which is exposed Pete Link to comment Share on other sites More sharing options...
Nigel Clark Posted August 29, 2022 Report Share Posted August 29, 2022 15 hours ago, Iain T said: Has it just started? Have you changed petrol suppliers? If you can try Tesco Momentum or Esso Synergy 99. Iain 99 octane is best for our cars and it's E5 not E10, so kinder to our cars' fuel system. As Iain says, Tesco Momentum or Esso Synergy, and Shell V-Power is equally good. Tesco is cheaper. Nigel Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 29, 2022 Report Share Posted August 29, 2022 Synergy Fuels | Esso says their synergy has no E added even if its labeled as such Pete Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now