Turbo fuelling

[nobbylon]

Working on a friends Turbo, double injectors, custom plenum, etc. Bike is running the standard pump located in the tail and has always suffered a small lag on throttle response. I’ve just ordered a new pump from Hamilton and was considering a low pressure pump from tank to this pump as it does have cavitation issues when left standing for any time. Any one got any ideas, views or tips to get this beast running tip top please? Has anyone fitted a supply pump to pressurize the main? regards J

 

[ColdBusa]

No issues here running an aftermarket pump in the tail. No throttle response issues.

 

[202mphbusa]

Lag on throttle response. Make sure air pressure line to fuel regulator only sees positive pressure. When they see vac also. There is a pressure spike transition from closed throttle to open

 

[TonyM995]

Do you have a data log for when the issue happens? What ecu does it have?

 

[nobbylon]

thanks for the suggestions. I’ve bought a new pump to start me off and will check the vac situation. The issue is there from idle.