From my research on the D66, your 120cc injectors will light it up nice if you have your TS tuned for both.

I've read the D66 is ok with stock 90cc injectors, but really comes to life with stage 1's (160cc's).

 

ANybody else?

 

The D66 would be a great upgrade if you ever plan on going with bigger sticks. Iirc your splits are not flowing much more than 90cc singles so your stock leaf blower should work fine.

Fwiw it sounds like your over fueling. I am running Rosewood stage 1's (160/80), stock fuel, stock hpop, and Tonys tunes with very little smoke in all tunes except for extreme 140HP tune.

The T500 is a must, especially if your going with the d66.

Sent from my Galaxy S2 while my wife is yelling at me for being on my phone...

 

How do you figure a 120cc injector thats smoking on the stock turbo like a bandit is flowing less than a 90cc injector on a stock turbo that wont smoke one bit? That to me means he's flowing quite well and needs more air to clean it up

fwiw, stock cali trucks are supposed to put down a good 20-40whp more than stock single shot trucks.

 

Brad, go ahead and do the D-66....I'm running one, and it's a good turbo....you can add bigger injectors, and the tuning for them later....
if your turbo is marginal, it should help a lot...if your turbo is good, probably not so much, but it's a good mod for the future....
the big power stopper is the injectors, as they are too small get much out of ....you can read my sig and see what I've done to my '97, and it's responded very well....

the other option would be to go Super Duty all the way and do a 38r Ball Bearing turbo...I think thats a better deal, but unless you can get the parts cheap, it gets spendy.....

and I still like the idea of a modded H2e better, as it comes with the bellowed up-pipes.... (if you get the right kit) ...but it's spendier yet ...

what you chose now is really dependent on WHERE you're headed with the truck...... how much power do you want to wind up with, and what are you going to do with it ?

if you are going to tow a lot, my setup has worked out well....I do think I would like a 38r a bit better, cause they spool quicker .....
possibly the H2e, because they are a very tough (and re-buildable) turbo, but the D-66 has worked out quite well for the price.....

give Cary T ( OBSWIZ ) a call and hash it over with him, he's VERY knowledgeable, an won't steer you wrong...

Cary T CT Performance
775-835-3569 8am to 5pm
Pacific time. M-Sat

 

If all you're wanting is a bit more air save your money and get a 1.0 housing. I had a full BANKs kit and then went with the D66 for more air and it was a dog till I upped the injectors, E-Fuel, and tuning to match the D66. Even Beans doesn't recommend it without at least stage one's

 

a 1.0 housing will not give you more air, it simply starts turning a LITTLE BIT sooner...I know, because it bought one, and tried it both ways, with no other changes, and the 1.0 housing is VASTLY overrated.....the real limiting factor in all the 97 and older trucks is the small injectors .....get some stage I's or larger, a TS chip tuned for your particular setup, and don't bother trying to tune for anything less, you're wasting your time. IMHO, it would be wise to do an IC, injectors, and the turbo all at the same time, and tune for THAT scenario..... then you won't be constantly sending the chip back to get it re-tuned every three weeks......

 

I was thinking about upgrading to a D66 for my 97. I can really lay down the coal in the DD or race setting. I am looking to clean it up.

I have Jodys tunes DD (80hp), Tow (60hp), Race(120hp). My truck also is a Cali emissions truck so it has the 120cc Split shot injectors stock. Under any hard throttle, it trows a CEl for Low HPO. So I know I need a HPOP(t500). Intercooler is currently going in. Is there a need for a D66? Is it going to be too "big" for my injectors? the trucks main duty is to tow. It has 4:10s, 35" tires and a 5 speed

BOT... If you are not considering an injector upgrade In the near future I wouldnt spend the coin on a D66. It is a great turbo and will work really well with stage 1's or 2's. I would look at your tuning if your really rolling coal in your dd tune. To me, and I am not a tuner by any means, smoke dosent mean power. It means un burnt fuel, means poor fuel economy and a lighter wallet.

Senwhicht from my Galaxy S2 while my wife is yelling at me for being on my phone...

 

so 120cc's isn't 120cc's? Please explain.

 

The D-66 will help clean up his smoke .it did when I had babby swamps(150 cc) in my truck.
now my 238's thats another story.

 

here all this time I was thinking that "Baby Swamps" were 130cc injectors.....hmmmmmm

anyhow....
with the splits, it takes more fuel to get the same power.....Ford had to go to splits in the Cal trucks to make the required power, and still stay under the CARB (California Air Research Board) requirements....

put stage I's in it, and quit fooling around with the splits, Unless it's really shot, your stock turbo will work with the stage I's until you can get the D-66.......

 

I'm pretty sure baby swamps are 150cc's.

I agree that similar sized splits vs singles, the singles whoop their asses in every aspect.

 

^Man it's great having this guy on the forum, lol. What a wealth of knowledge.

 

What is the stock housing? 1.15? It spools up PERFECTLY it just runs out of air in the top of the RPM range

 

Its not running out of air, you are over fueling...



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Jody burned my chip exactly for MY truck. MY 4:10 gears, MY cali 120cc injectors, MY 5 speed, MY 15*HPOP, MY 6637 air filter, MY 4" exhaust & MY trailer weight.

I dont understand how he could of tuned it any more precise other than a LIVE tune.

I have the fuel(why not use it) now I just need the air to match it

 

Like I said thats just my opinion... I am not a tuner by any means.

I can tell you this, with my current mods and tonys tunes I only roll coal in my extreme setting. If I get on it in my street tune, which is my dd tune, I can roll, but only if i a am matting it. In that tune I am seeing like 3psi of boost at idle, and at wot almost 30...

Like I said in my opinion its tuning. I could be wrong, its happened before.

Have you called Jody and talked to him about this?



Sent from my Galaxy S2 while my wife is yelling at me for being on my phone...

 

Have you called Jody and talked to him about this?



Sent from my Galaxy S2 while my wife is yelling at me for being on my phone...

Yup. My truck had a generic DP tuner in it when I bought it. I sent it back twice

 

get a D-66 , s366 or h2 set-up to get full use of your injectors.
stock turbo was not designed for that big of an injector.

 

How's that? His sticks are stock 120 splits?

Running the stock leaf blower on mine with 160/80 sticks and am making about 32psi of boost in my hot tune... I fail to see an issue with his stock turbo supplying enough air.

Sent from my Galaxy S2 while my wife is yelling at me for being on my phone...

 

D66 that thing and put a t500 in it

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Not necessarily. I've not met more than 3-4 people that went w/ 1.0 housings that have actually removed them... the dozens of other people say it pulls harder in every single rpm range.

 

Brad, I also think that you have some other problem. Either your turbo is damaged, tunes are over fueling, or some other air inlet restriction. Mine's not a cali truck and I don't have custom tunes yet because I want to do injectors first but my turbo starts spooling hard at about 1400 rpm's and continues to spool and pull hard right up to red-line with nothing more than a haze. I buddy of mine has tranny saver injectors (130cc) with a 1.0 housing and he does not have more than a haze at wot. I might have missed it but how much boost are you getting above 2500 rpm's?

 

^^^^^ Like I said...

My truck pulls 30-35psi at WOT. That I assume will drop once I get the truck back together w the I/c

This infact proves my theory even more. Your stock turbo is only goo for about 35psi max. If you are hitting those numbers then your spooling the turbo correctly. Excessive smoke means to much fuel... No way around it bud.

 

My truck pulls 30-35psi at WOT. That I assume will drop once I get the truck back together w the I/c

 

You can expect about a 5Lb drop in boost. It will most likely black smoke more also.

 

^^with the last two posters. Reread the posts and I must have missed that you are hitting 30-35 psi in the truck somewhere. The PCM's on our '97 Cali trucks freak out when they see any boost level over 25psi (I have confirmed this in talks with Gale Banks, neighbor, and the owner of BEANs Diesel, Ryan). You can't tune the over-boost out of our Cali trucks. The PCM is changing the timing and fuel maps and this might be why you are seeing black smoke. Install a boost fooler and see if the smoke clears up. Worked for me when I started seeing excessive boost.

 

so a boost fueler will take away fuel, or add more boost in his case?

 

Also, some of my black smoke may be from the weak HPOP

 

Our Cali Trucks modify fuel and timing to try and save the turbo at pressures over 25psi. It knows you are asking for more output but it also knows that the intake we have stock is off a '96 with 90cc injectors BUT is being driven with our 120cc splits. Hot rodding is bad for the environment say California. Ford tried to give the owner what he wanted but still fall in line with California's demands to sell within the state. It's more simply a conflict in the computers programming. "I want to do this but something is poking me in the back to do this". '99 and newer trucks will set a code for this but not our '97 Cali's. The boost fooler goes between the MAP sensor and right plenum and is simply an air pressure regulator set to 22psi so that the PCM never sees more then that.

I'm lazy and buy most all my sh1t instead of making it. You can get one here or simply make one using the picture:

BDP Overboost Kit - Turbos & Upgrades - (1994-1997) 7.3L - Power Stroke

 

I'm lazy and buy most all my sh1t instead of making it. You can get one here or simply make one using the picture:

BDP Overboost Kit - Turbos & Upgrades - (1994-1997) 7.3L - Power Stroke

Yeah. I put one of those on my buddys 02. I'll have to try one of those too. because I defiantly keep throwing an over boost code