I need more fuel!

[M@r]{]

mmm, how much extra £\'s is it to go for the 1650\'s in a rail over 850\'s all round?   If it si not that much surely that is the route to take?  Bigger safety margin etc?  

Uprating my injectors is my next step.  I\'m getting close to 90% at 0.75bar!!  300bhp atw.  Now I have no intention of going to a single turbo, I love the twins too much, its just not worth the expense but.........   If the twins ever give up the ghost I may then be forced to go single, or high flowing twins?  

With safety margins in mind, and taking into account all possibilities, i\'m planning on getting 1650\'s on a rail.

[Shyne]

Just 2 quick points:


1; Have the injectors you\'re running been serviced since you\'ve had the car?

2; You can also run 1k SARD secondary injectors if you\'re concerned about mapping the 1680s

[iaint]

Just 2 quick points:


1; Have the injectors you\'re running been serviced since you\'ve had the car?

2; You can also run 1k SARD secondary injectors if you\'re concerned about mapping the 1680s

It\'s worth noting that running big injectory at too low pressure can cause problems as they require a certain amount of pressure to atomise the fuel properly.

1k secondary replacements sound like a good compromise as the rebored 850s that are sold as 12/1300s have definatley caused a number of cars to die unpleasantly.

[Ricco_04]

Excellant info from everyone - thank you very much. :wave

My injectors have never seen a proper service so I would imaging they are overdue for one.

I do like the twin setup but I also have toyed with the idea of the twins and loosing a lot of gumph from the bay.  Not 100% decided on that though which will be my long term problem. 65/35 in favour of the twins at the moment.

Powerwise.  With the head I have on at the moment then there is already enough there (300fwbhp)  This will increase when I have the map fine tuned and then some when I have the Apexi GT and uprated intercooler - it will probably be mapped at 1bar where it is at 0.8 at the moment.  I would also like to have a fuel pressure reg in there regardless too.  Also wondering if the standard FD pump will cope with this?

[Shyne]

Clean up and service report could be a good starting ground then, at least you will then know where you stand on the injectors running condition on the last logged run which will give you a more accurate view on what you can run.