i have a H22a4 that i am putting into a 95 integra gs-r, it has a t3/t4 turbonetics turbo that will be installed after i finish the motor, what size injectors do i need for turbo? i was thinking 550cc or something around that, help please!

 

Taken off of another site

Injectors are an integral part of building your motor, whether you plan on going turbo or even a full NA buildup. Your engine will only produce as much power as your injectors and fuel system will allow it. Here's a little guide to help you determine what injector sizes to get. Remember, injectors normally come in standardized sizes, so round up to the nearest available size (custom injectors can be made, but those can run a pretty penny)

Here's the formula:

Injector Size (lbs/hr)= (Crank HP x BSFC) /(total number of injectors x duty cycle )

The typical duty cycle is 0.85 for NA motors, and between 0.90 to 1.00 for nitrous or FI applications. The Brake Specific Fuel Consumption (BSFC) is the amount of energy that can be extracted given the amount of fuel delivered to the engine. your optimal BSFC is as follows:

Professional racing engine 0.40
High compression engine 0.50
Low compression engine 0.60
Turbo/Super charged engine 0.65

Since most manufacturer rate their injectors by cubic centimeters per minute, you have to convert from lbs/hr to cc/min by using this formula:

lbs/hr x 10.5 = cc/min

On an end note, you will also need a fuel pump that will accomodate the higher flow rate of the injector that you choose....but we'll save that topic for another thread

Happy tuning!

 

i forgot to mention something else. should i bore my stock sleeves or buy some aebs sleeves, and also should i get a perf. crank or is stock crank good enough, remind you i am putting a t3/t4 turbo onto a h22a4. thanks

 

You need to sleeve it otherwise you will only be able to run around 5-7lbs i think. But will put alot of stress on it. Boring it would be even worse.

 

the stock crank will be fine, no need to upgrade the crank, watch out for the ringlands of the prelude engine

 

yes sleeve it and drop in some forged pistons. then get some 720 or 880cc injectors and boost away with the right management. also stating that your running a t3/t4 doesnt realy mean anything without the specs.

 

does anybody know where i could order some darton sleeves or aebs sleeves? thanks

 

pm precisionh23a and he'll hook u up on h22 sleeving

 

i instant messaged him but there was no response, so hmm. ill look around until someone can tell me something, thanks anyways :D

 

Sorry I was not at the computer when you PM'd me earlier. You can check out http://www.av-engineered.com for sleeve information as well as pricing.

As far as injectors are concerned, give me an estimate of the power range you are looking at running. The injector calculation formula is great to use... but that is in theory and you'll see sometimes that on the dyno you'll need a larger/smaller injector opposed to what the formula yeilded. Factors such as the MSBC and others are not constant through every motor and you may use a wrong number... so those are some of the small things that can throw the calculations off.

 

how much would engine sleeving cost, and how long will it take?

 

I started with 550cc now i have out grown them, so i'm looking for some 880cc.

At 330whp on my car, the 550cc are maxing out.

But that's on my car and it has a 90prelude b20a5.

 

EDITED TO REMOVE NON-SPONSOR LIKE MATERIAL

 

let me run the idea over with my dad, he has the final decision and he holds my money. ill talk to him and post the decision and if he has or is going to call, thanks! how much is shipping from texas to your industry also?

 

H22A4 Motor
Hasport Motor Mounts
AVID Axles
Port and Polished Head
3 Angle Valve Job
Titanium Valves, Springs & Retainers
STR Cam Gears
Crower Camshafts
ACT Stage 3 Clutch
Clutchmasters 8.5lb Flywheel
PYR Chipped p28 ECU
Turbonetics T3/T4 Turbo
Turbonetics Wastegate
BLITZ BOV
BLITZ Turbo Timer
not sure about pistons, connecting rods, turbo manifold, waiting on motor to be sleeved and such, before buying pistons and things, but will more than likely be JE 9:1 Pistons, Eagle Rods, and if anyone knows of someone selling a DRAG Turbo Manifold with external wastegate mount, tell me, thanks.

 

get some cp pistons, and you will need pistons when you are sleeving, because they will need one to bore it out to

 

if you have any questions pm me, i have an exact setup in my car

 

EDITED TO REMOVE NON-SPONSOR MATERIAL.

 

In order to advertise your business you must be a HONDA-TECH SPONSOR. You cannot use this board for personal business profit without paying to do so.

Jesus christ people, someone asks for help on a motor and you all come out like a bunch of ambulance chasing lawyers. The only reason I posted in here was because the individual PERSONALLY contacted me for information to share in his thread.