I have a VIII with all the bolt-ons, Kelford 272 looking for a bit more already. Thinking of upgrading to a IX turbo...just curious what size injectors would suite me best? This is my DD so keep in mind MPG is important.

 

880cc

 

Really??? MPG. I would say talk to your tuner. He can recommend a set the right size and a tune for the best fuel economy. But remember when there is power there is fuel. Don't forget the fuel pump too..

 

Umm stock for a IX turbo if its on gas.

Mileage is really not dictated by injector size. Its either right or its not with the tune.

 

i'm on 680's with a 3076r. so anything between 660-720 you'll be fine.

 

This is the only valid response to the OP's query. Given pump gas, and a stock turbo(VIII, or IX) the stock, 560cc injectors will provide sufficient fuel when combined with a WALBRO 255LPH fuel pump. There is absolutely no need to upgrade the injectors when going from an VIII to a IX turbo on straight pump gas fuel.

 

OP let me know if you want injectors. I have low mileage 880s for sale. pm sent

Mikey

 

There is absolutely no need to upgrade the injectors yet. Keep the stock ones which will work fine.

Carlos

 

+1