1.7 big bore fuel injection Options

[Damo]

Hi all. I’m in the process of converting my stock 1.7 to a big bore 1.9 and was looking to keep the stock fuel injection system if I can. I would just like to know if this is possible and how the original FI is tweaked, do I need to fit bigger injectors and mess with the throttle position etc etc. I’ve been told it’s possible but would like more detail so that I can continue. There must be quite a few out there that have done the big bore so hopefully someone will jump in. Thanks.

[VaccaRabite]

Yellow injectors will work, but many people swap out to the 2L ones.
gotta keep the stock cam, compression, etc.
When you do the heads, have your machinist use 2L valves. Or buy new heads from Len. Either way, of your entire build, almost all of the money should be going into your heads.
There are a couple guides on 914 World about how to set the MPS.

Do a search for +1911 +mps and you will likely find one of the threads that tells you how to adjust to get djet to be happy.

@racerchris also (I think) sells them pre-adjusted.

Zach