High Comp 20v BT Injector Upgrade.

[Zane k]

Okay so I can't seem to find any specific information on this, I'm currently building up a High comp N/a 20v BT and I'm just considering upgrading the injectors, I'm going to be running either a Haltech Sprint 500 or Haltech Sport 1000, Im just curious what people here have gone with or if you could give me any advise/ options on some good injectors I could upgrade to, This is my build. Thanks in advance.

CP 81.50mm bore high compression forged pistions C/R 12:5:1
Brian Crower H beam forged condrods
ARP head studs
Kelford 194-C racing cams
Intake: 284' Duration 9.30mm Lift.
Exhaust: 278' Duration. 8.50mm Lift
Kelford Cams racing vavle springs
Full head reco port and polish
TRD 0.8mm multi layer metal head gasket
HKS timing belt
1zze Coilpacks

[Frak]

Depending on how much fuel you need, Japanese 2JZGTE will fit straight in and give you 440cc, USDM 2JZGTE will give you 550cc, this is what I used in my BT.

[Twisty92]

i got advised that when i build my N/A 20v ST i would need around 500cc, he said as a guesstimate you double the CC to how much HP you want to make. i would love to know when i could find some injectors though so let me know if you find any

[maxhag]

I have a set of 6 2JZGTE 440's if you want them. $150

[Hen may possibly be a nut]

Twisty, those number you give seem too high. There are a few injector calculators around the net that can give you an idea. And form my experience on a 4AGZE I've made 110rwkw on 365cc injectors and 140rwkw (optimistic I feel) on 440s without problem.

[Zane k]

I've been told that in my case there is no need to upgrade from the standard injectors as they have seen the standard ones on a 250hp+ 20v running it fine?

[Zane k]

Thanks man but if I do upgrade I'll be buying new.

[dansomerville]

I'm running very close to the same setup as you're describing here. Same pistons, cams and springs you've suggested. Only difference being I've got Spool rods and using a standard thickness head gasket.

I've had no dramas throughout tuning and to this point running the standard blacktop injectors.

[Zane k]

Can I ask what engine management system you're running and also what power output? Would be highly appreciated.

[dansomerville]

I'm using an Adaptronic E420C, still retaining VVT. My engine makes 143hp at 8500. Still very streetable, and makes a comfortable amount of torque for getting around town at low revs.