I didn't sleeve the block. The picture looks crazy because of the flash at night, but the deck was stoned and mic'd across the length flatness is minimum .0005 ( is that flat enough? I was thinking that it is, I don't have a way to measure much more precise than that).

 

Its probably just the marks left from the old headgasket making it look like sleeves were fitted.

 

Got the head and timing belt on.

 

lookin good man. its been a very long time since u started this thread. how much boost u plannin on runnin with the 'built' bottom end

 

Thanks, I'm not sure what i'm going to run somewhere between 15-20 more if it can handle it. I have a 16g sitting here but I am almost set on getting an fp green or red for the car. It been a long time I can wait another couple weeks for a new turbo, need new injectors any way.

Question: What size injectors would I need for e85? I was thinking between 550 and 650?

 

with e85 at 14psi i would go with 800cc injectors. to stay in the 80-100% duty cycle range.
if u r wanting to go up to possibly 20psi.. go ahead and get some 1200cc injectors.. just gives u more to work with..

PTE has some nice injectors.. its what i have on my car.. they r low impedance also, so u will have to do a little bit of wiring to make them work (add resisters inline)

 

Ok, I will have to look into it. What determines the car needing high vs low impedance injectors?

 

our car requires high impedance.. its how many volts/ohms are going to the injectors in the line.. basically are car uses alot of energy.. and will burn up the low energy ones without resisters added to help reduce that amount getting to the injector so it doesnt burn the motor up inside.

down side to that is.. biggest high impedance u can get is 750cc.. suppose to be a 1000 out.. but everyone ive asked about them said to not waste my time and go ahead and rewire my injectors and go bigger.

 

Cool, do you know the resistance value needed? does it change based on the injectors size? If not I'll have to do some reading.

How will the larger 1200cc injectors perform on 91 oct with low boost (15psi)? I would like to be able to switch between maps since I have 3 e85 stations by me but outside Denver they are more sparse.

 

im not a tuner so i cant explain the differences in load values, but u will need a switched tantrix cable to run 2 maps(forget what its actually called). and from my experience with larger in jectors.. and a few of my buddies have 2000cc injectors on there STOCK and also turbos hondas, and they had no problem tuning around them also, just gotta know how to tune!
(and yes i said STOCK honda runing 2000cc injectors, sounds completely idiotic, but he has them, and car runs absolutely fine, almost seems 100% stock)

on 1200cc injectors on 91 octance u should be in the 50-60%duty cycle range, ideally u wanna stay in the 80-95% range, and anything over 100 u should see some leaning out which is bad.. so even though there still to big, it should be alright as long as u, or your tuner, is competiant enough to do it..

but if u wanting to run 20psi, eccspecially on e85, u will need the 1200s
i re-did the math behind it all, and my setups suppose to be running 24psi on e85, and i think im gunna run outa fuel with the 1200s, so i might end up having to go even bigger but im really not sure anymore since not many people are on e85 or pushing that much boost on our motors.

 

Thanks for the help you provided, i ordered some 1200cc injectors for the setup.

I read through your build thread, looks like your going to have a beast.


I can't remember if I did a full parts list, so in case anyone is interested:

_16g6 turbo ( probably upgrading to a FP Green or Red before actual install)
_Forge WGA
_Forge RS BOV
_Forge Manual Boost Controller
_Evo 8 ecu
_Innovative LM1 WB
_501 MAF
_Carillo Rods
_Weisco Pistons
_Ported and polished head
_3 angle valve job
_Crower 272 cam
_Upgraded valve springs
_Aerospeed adjustable cam gear
_Gates timing belt
_4g93 lightweight pulley setup
_2.5" exhaust with 02 dump
_Custom solid motor mounts
_Clutch Masters stage 3 clutch ( not sure if this is going to handle the power)
_Megan racing coilovers

Thats about it for my mods, I may be missing some.

 

Stock 4G94 high impedance injector resistance is 13-16 ohms @ 20*C.
Low impedance injectors are typically around 2-3 ohms @ 20*C.

Ohm's law states: volts / resistance = amps

So with the Lancer high imp injectors: 14 volts / ~13.5 ohms = ~1.037 amps
Using low imp injectors: 14 volts / ~2.5 ohms = ~5.6 amps!!!

With amperage that high you will burn up your injectors or even your ECU. So what you need to do is reduce the amperage back down to around 1.25 amps or so.

Using Ohm's law to figure out what resistor is needed to lower the amperage:

14 volts / (x + 2.5) = 1.25 amps

14 volts / 1.25 amps = (x + 2.5)

x = 8.7

So in this case you would require an 8.7 ohm resistor soldered inline to each injector to reduce the amperage back down to a safe value. This, however, is just for reference. You will need to find out what the exact resistance is of those 1200cc injectors you purchased. You will also need to find out from the manufacturer what amperage range the injector is meant to operate at. With those values and static voltage you can figure out the added resistance required to get the injectors back down to the operating amperage range.

 

speaking of this how much psi can you run with 440cc injectors?

 

The resistance is 2.2 ohms, so a 9 ohm resistor if I read right.

 

Teaser pick, machining my soon to be solid motor mount.