Jump to content
Please check your junk folder for registration emails ×

EOI - Dual Injector TGV Deletes


Jono24
 Share

Recommended Posts

Hi All,

 

I'm working on a CNC machined TGV delete to be used with v7 STI intake manifolds. I've modeled the part myself based on a factory aluminum TGV and had it 3D printed and test fit. The design will allow for standard Subaru injectors and rails for all injectors ports, this allowing flexibility when building up your fueling system (i.e. aftermarket injectors or rails for Subaru v7 Imprezza STI  will fit in both lower and upper locations, along with factory v7 injectors/rails).

 

The benefit of dual injectors per cylinder is when you are chasing big horsepower, and a large single injector per cylinder (i.e. 1500cc and above) will achieve poor resolution at part load/cruise, resulting in a stumble or accelerator hunting at cruise. With twin injectors, you can retain the factory injectors for low horsepower duty, and allow the ECU to bring on the secondary injectors only as needed, thus providing factory levels of fueling control at low engine load and adequate fueling for high horsepower runs.

 

This design is intended to utilise your primary injectors in the lower injector ports for general duties, while the upper injectors provide additional fueling as required. This will require an aftermarket ECU to control the additional 4 injectors and it is best you consult with your tuner if your ECU is capable of managing the extra 4 injectors.

 

I'm currently working through the adapter for mounting the upper fuel injector rail and pricing with a CNC machinist with the final version to be cut from aluminum billet. As you will understand, the bigger the batch of these the lower the final cost, so if anyone is interested please get back to me via private message and I can put you on the list.

 

I'll post some pictures up here shortly of the 3D printed version, but please be aware that this isn't the final product, as details such as fillets will be added to improve machine-ability and reduce costs.

 

I'm happy to answer questions anyone has, just fire away.

 

Cheers,

 

Jono

 

 

 

84943a6e4cf69ecf119a7040cb137468.jpg132265bd05ac0ad8f573d72ecce3e43e.jpgd9fe13a34ae33b1141bcf55e151a2405.jpg6e165422f5b6a22bb901d2fe5bf9199d.jpg

Sent from my SM-G960F using Tapatalk
 

Edited by Jono24
  • Like 4
Link to comment
Share on other sites

Should you not leave the material around the bolts. Stops water and crap going down to the threads.  

 

Plus less machine time to remove the material so cheaper to produce.

 

A little more to print and test but you can leave it void and just print internal webbing. 

Link to comment
Share on other sites

1 hour ago, Gripless said:

Should you not leave the material around the bolts. Stops water and crap going down to the threads.  

 

Plus less machine time to remove the material so cheaper to produce.

 

A little more to print and test but you can leave it void and just print internal webbing. 

 

When the bolt is in there, not much is going to go down there.

 

The extra machining time to remove that material is marginal at best and it removes a bit of unnecessary bulk. I can ask the machinist, but I don't believe this will have a noticeable impact on cost as it doesn't affect part turns in the machine or tool changes, or much in the way of tool paths.

Link to comment
Share on other sites

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 account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share



×
×
  • Create New...