i have the denso 720cc injectors and i wanted to know the max hp i can have before i need to upgrade.

i have a twinscroll htagt35r on a stock motor.

on 91 octane i make about 400whp. i'm going back for a 100 octane tune and will probably go for close to 500whp on the stock motor. Will my injectors be enough?

 

Install some larger injectors before turning the boost up any higher than your current 21#. Do the injector swap prior to your upcoming 100 octane tune. Do at least 880 cc nozzles. You have been starving your 35R, Riceball.

 

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If you can afford it and its around I'd switch to e85.

Dual pumper and probably 1200's at least.

 

There are variables that prevent a solid answer here... But i can tell you that I ran 720cc denso injectors on my 1G talon with a SC61 turbo "very similar to a 35R same compressor wheel" at 26psi and 110 fuel while granny shifting due to stock trans to a low 7 sec pass at 104MPH through the 8th mile at FULL weight. Thats around 550WHP in that car. Im currently running 28psi on the car on 93 octane pump gas with these injectors. There basically tapped out though and I wouldnt advise running injectors close to there limit to anyone else.

 

I was out of injector on my PTE 780cc hence switched to 880cc for a little more room. I was making about 410 whp with my gt35r kit on dynojet at TT as the time on 91 oct and evoscan show 100%+ for my 780cc so I think your injectors may not be enough as its rated 720cc.

I'm still have the 880cc so you can have its cheap if you want.

 

One major thing you need to take in account is that Denso injectors are not rated at the same psi as PTE injectors. So just say "IF" PTE made a 720cc injector the Denso would out flow the PTE by a NICE margin.

 

^ that's why I said "may not". 720cc to 780cc even there is a flow margin I don't think it'll be different very much.