Let's Talk Turbo

[dedub]

Dedub, what fuel controller did you get?

Anyone change out injectors when they went to turbo?

i been haveing fuel controler maidfor turbo that has air line hook up to read boost an auto fuel up. i've not got them tested yet to set factary program waiting on some parts. the stock injector is 10#

[Guest Lenny]

I didn't know the stock injectors were that small. I'm running 28# injectors.

Lenny

[dedub]

I didn't know the stock injectors were that small. I'm running 28# injectors.

Lenny

dobec flowed an tested them.for us

[Merchant Mariner]

i been haveing fuel controler maidfor turbo that has air line hook up to read boost an auto fuel up. i've not got them tested yet to set factary program waiting on some parts. the stock injector is 10#

Are you making it out of the original fuel controller, or something altogether different?

Uuummm, not to sound totally stupid, but I'm not understanding about injectors. So how do you know what exact injector will fit the engine? Aside from lb rating, how do figure out which one we need, there are tons of different types and styles, what did you use to cross reference into a new. As for the 28# injectors, Lenny, I can't believe your running that big of injectors! A mildly built 350 TPI motor in my Trans Am is running 24# injectors. Are you running a really short injection pulse to compensate for the big injectors?

[nocturnalsixer]

Trooper uses injectors with ev1 connection...someone would have to pull a injector out and measure it and also measure the o rings to know the size of injectors. I think maybe taller injectors won't hurt anything?

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[Guest Lenny]

I started with 22# injectors and it wasn't enough. I don't think i'm running a short pulse. Real short pulses can be inconsistant. Initially my dyno guy was having trouble getting enough fuel. Shaun Church of Church Automotive did my dyno work. He is maybe the best tuner in the country. See http://www.hondatuningmagazine.com/tech/htup_0805_shawn_church_automotive_testing/ I'm turning out good power and he stayed conservative,

Lenny

[dedub]

Are you making it out of the original fuel controller, or something altogether different?

Uuummm, not to sound totally stupid, but I'm not understanding about injectors. So how do you know what exact injector will fit the engine? Aside from lb rating, how do figure out which one we need, there are tons of different types and styles, what did you use to cross reference into a new. As for the 28# injectors, Lenny, I can't believe your running that big of injectors! A mildly built 350 TPI motor in my Trans Am is running 24# injectors. Are you running a really short injection pulse to compensate for the big injectors?

it's made like the original controler with air line hook up.

[Merchant Mariner]

Trooper uses injectors with ev1 connection...someone would have to pull a injector out and measure it and also measure the o rings to know the size of injectors. I think maybe taller injectors won't hurt anything?

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How about you Lenny, how did you figure out what injectors to buy?

[Guest Lenny]

A company that specializes in injectors gave me injectors for an engine putting out 140-150 hp. I then ended up going bigger when i felt it could use more. If you figure I'm 72 cu. inch and with my supercharger, I doubling the air intake volume or maybe more so that makes me like say a 144 cu in or more with 4 cylinders. A 350 engine using a 28# injector with 8 cylinders isn't all that far off.

Lenny

[Merchant Mariner]

Do these look like the right body type/style? From the pictures I was able to find of our stock injectors, these look to be the same style. (Sorry, I'm 5,000 miles away right now and can't just go out to the garage and look for myself )

[goindeep]

Those are the right impedance but you need to find out what lb/hr they are.. we have 10 lb/hr injectors stock and you want to go up to no more than a 19 lb/hr

[Merchant Mariner]

They are 19 lb/hr. from what I have been able to figure out, they are out of a Ford. Seems Ford used these and the larger bodied style for serveral years, mainly in mustangs and trucks. Not sure that we have enough room to fit the larger body injectors.

Large body, 19lb Ford injectors, EV1 connector

[goindeep]

joyner used both styles of injectors but if you have the smaller injectors you need to stay with that style. the larger body injectors are low impedance and the small ones are high impedence... your PCM is programmed for which style you have...

Josh

[Merchant Mariner]

Nice bit of info there, Thanks!

[12TROOPERT2]

Hey fellas raed this topic through and was curious about a brand new turbo i actually bought for a mustang i had. The turbo is a T4 that is made for 1.9 to 2.3 liter ford 4 cylinder engines and i figured since i allready have it can i run it on my stock engine or do i have to put lots of mods on it?

[nocturnalsixer]

Hey fellas raed this topic through and was curious about a brand new turbo i actually bought for a mustang i had. The turbo is a T4 that is made for 1.9 to 2.3 liter ford 4 cylinder engines and i figured since i allready have it can i run it on my stock engine or do i have to put lots of mods on it?

I'm not sure but i would think that turbo is pretty big for a 1100cc? Too big turbo would make turbo lag

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[Merchant Mariner]

I'm not sure but i would think that turbo is pretty big for a 1100cc? Too big turbo would make turbo lag

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I'm inclined to agree. There are two problems with installing too big a turbo, the first obviously being spool time. The second being pressure wave consistency. Basically if you look at a performance map for your turbo and your engine numbers put you to the left of the "islands" the turbo is too big for the exhaust to create a constant force on the turbo which can cause damage to the turbo.

Someone chime in here if I'm not getting it explained right.

Then again, don't take my word for it yet! I don't have mine up and running yet to find out if I calculated mine too small. It sure looks too small, but its supposed to be for 1000-1300cc, and my calculations for the engine numbers put it right in the middle of the performance map. We'll see in a few days I hope!

[goindeep]

WAY TOO MUCH!!! you will cause more trouble than good. you can find a K03 turbo from $150 - $650