s366 turbo 5.3 lexus bigger fuel system or new tune?

[lsxsl400]

Recently purchased a 5.3 swapped lexus. Consist of 5.3 tr220 cam comp cam 918 springs borgwarner s366 turbo with .91 a/r housing. 42c lb injectors andI walbro 255 pump.Currently the car is on 9 psi and a mail order tune from nelson performance. Nothing against nelson but I would like to get the car dyno tuned locally here in Minnesota. I know ill either need a new ecu or have the current one unlocked. But I have a few questions before I bring it in and find out my fuel system is to small. Should I go ahead and do 80lb injectors a1000 pump and have it tuned on e85 or is the current fuel system sufficient for the s366 turbo on pump 92? When getting tuned ill also be ditching the Maf and going sd.

Real questions are what's the s366 capable of with this setup and will the fuel system hold me back.
With this turbo is there much to gain by dumping money on injectors and a pump n switching to E85. If so what could I possibly gain by doing so.

[pl4yboy]

Those injectors are pretty small. I'd like to see you IDC numbers. If you're switching to E85, you definitely need much larger injectors. I'd suggest 60s for the combo you're on currently and I'm sure that 255 is almost maxed out.

[lsxsl400]

Here's a pic

[lsxsl400]

Those injectors are pretty small. I'd like to see you IDC numbers. If you're switching to E85, you definitely need much larger injectors. I'd suggest 60s for the combo you're on currently and I'm sure that 255 is almost maxed out.

I kinda figured they were small, I just picked the car up n have it sitting in the garage as the roads are icy. When it clears up ill get the laptop on it and see what the IDC is and how the a/f is. Its running meth injection also im afraid they added it due to the fuel system if that's the case new fuel system it is

[farmtruc]

Sounds like you're gonna be pushing it or want to a little bit more so save time and money and upgrade the fuel system.
There isn't any reason not to go big.
90-100lb inj. Twin pumps or large single inline. The a1000 will do the job.

[5.3ls400]

this is my old car nelson performance did the tune and no i didnt add the methanol injection because of fuel i just did it in the beginning cause i had it laying arou cnd i would really like to know how the car is doing though i miss that dang car i shouldnt have ever gotten rid of it

[omar2guy]

Pics of the whole car please!!! Looks good by the way

[LQ4-TURBO]

Pics of the whole car please!!! Looks good by the way

I agree pics asap... man

[canada4g63]

this cory's old car????

[5.3ls400]

yes thats my old car i miss that thing alot i would like to know how it is doing