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alda and turbo adjustments - Printable Version

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alda and turbo adjustments - eck60 - 04-08-2011

om617a or 82 300d I am getting ready to do some super spring tuning valves, turbo, alda and I have read so much about alda tuning well I figured I would post and see if I can get the real truth here some say remove it totally others say 1/4 turn ccw till black smoke appears then cw just a bit

1 amusing the banjo and all alda lines are functioning properly what is the proper way to tune it

2 the turbo kkk and garret I have one of each about 14.5 psi boost should be a safe max I have also heard that you can put in a valve on the waste gate line to restrict flow to tune the psi any one heard of this


RE: alda and turbo adjustments - aaa - 04-08-2011

Sounds like you're on the right track. Either alda adjustment method is fine. Supposedly removing it completely will put excess fuel in and raise EGTs. Mine hasn't melted down yet though and it's been 40k miles.


RE: alda and turbo adjustments - willbhere4u - 04-09-2011

I usually max the adjustment on the ALDA loosen the nut and turn the screw out ccw until it stops don't force it any more and then cw an 1/8turn and lock the nut back in if it smoke to much at idle turn it cw until your happy with the smoke!


RE: alda and turbo adjustments - Captain America - 04-12-2011

Yes you want to back the screw out until you see smoke when revving WOT in park or neutral.

In my case, I didn't see any smoke so I completely removed the ALDA and that is when I got a nice little puff.

I think every pump and engine is a little different, especially after the kind of miles, operating conditions, and care these engines see...


RE: alda and turbo adjustments - aaa - 04-12-2011

(04-08-2011, 01:08 PM)eck60 2 the turbo kkk and garret I have one of each about 14.5 psi boost should be a safe max I have also heard that you can put in a valve on the waste gate line to restrict flow to tune the psi any one heard of this

It's called a boost controller. Course on the KKK you just adjust it directly since it's easy.


RE: alda and turbo adjustments - Einar - 04-13-2011

(04-12-2011, 04:01 PM)aaa
(04-08-2011, 01:08 PM)eck60 2 the turbo kkk and garret I have one of each about 14.5 psi boost should be a safe max I have also heard that you can put in a valve on the waste gate line to restrict flow to tune the psi any one heard of this

It's called a boost controller. Course on the KKK you just adjust it directly since it's easy.
The KKK has an adjustable wastegate actuator, but in a 123 there iave an it`s not so easy to adjust it because of the lack of space against the frame.
The Garret dont have an adjustment.



RE: alda and turbo adjustments - Captain America - 04-13-2011

The Garrett DOES have an adjustment, you just have to disassemble it, which is a PITA.... It is much easier to just add a controller in-line...


RE: alda and turbo adjustments - winmutt - 04-18-2011

Is your linkage hitting max stop? That should always be step 1 before messing with alda etc. X2 on getting the external boost controller for the garrett.


RE: alda and turbo adjustments - cjcosta - 05-26-2011

Yesterday i finnaly open the cover of alda valve and adjust it. CCW until it stops and 1/4" turn CW.
The engine is much better in low rpm, very smoth thats what i need in a G-wagon.
The boost is at 12psi is it ok?

Best Regards,
Carlos


RE: alda and turbo adjustments - tomnik - 05-26-2011

Hi,

maxed out ALDA + full boost without black smoke means that the full load adjustment is too lean.
Theoretically the correct way is:
Simulate full boost on ALDA, ALDA adjustment maxed out. In case the ALDA is not leaking, pressurise it at 1.1 bar and keep the pressure.
Then test drive and check for black smoke at WOT.
Adjust max. delivery with full load adjustment until only a bit of black smoke is visible.
Connect every thing correctly and reduce ALDA a bit.
Done like that you should get the complete range of ALDA operation with max delivery (WOT and full ALDA enrichment) without (too much of) black smoke.


Carlos: How is the pump going performance wise?
Tom


RE: alda and turbo adjustments - Captain America - 05-27-2011

Guess mine is a lean tune pump haha


RE: alda and turbo adjustments - mr_manny - 05-27-2011

(04-18-2011, 01:02 PM)winmutt Is your linkage hitting max stop? That should always be step 1 before messing with alda etc. X2 on getting the external boost controller for the garrett.

I noticed how an adjustment screw limits throttle movement...is this some sort of governor?

seems like this screw will limit WOT.





RE: alda and turbo adjustments - Captain America - 05-28-2011

(05-27-2011, 10:46 PM)mr_manny
(04-18-2011, 01:02 PM)winmutt Is your linkage hitting max stop? That should always be step 1 before messing with alda etc. X2 on getting the external boost controller for the garrett.

I noticed how an adjustment screw limits throttle movement...is this some sort of governor?

seems like this screw will limit WOT.

FI said that if you adjust that, the linkage will bind up inside the pump.



RE: alda and turbo adjustments - yankneck696 - 05-28-2011

IN would say to wait for the new tutorial of how to adjust your pump. Please don't beg for it, the person getting it together should allow for better power than FI did.

Ed


RE: alda and turbo adjustments - Hercules - 05-29-2011

May be just luck!!! Turned throttle stop in up to three turns ,on 35 or more pumps with out any binding,will need to readj. vac. control to trans. Always recheck to be sure all is ok.


RE: alda and turbo adjustments - Captain America - 05-30-2011

(05-29-2011, 01:50 AM)Hercules May be just luck!!! Turned throttle stop in up to three turns ,on 35 or more pumps with out any binding,will need to readj. vac. control to trans. Always recheck to be sure all is ok.

Improvements?


RE: alda and turbo adjustments - Hercules - 05-30-2011

Additional fuel. Had to vary adjustment according to pump wear. If smokes too much, turn screw back out some.


RE: alda and turbo adjustments - Captain America - 05-31-2011

hmmmmmm...


RE: alda and turbo adjustments - mr_manny - 05-31-2011

I know this isn't scientific:

I have a spare IP sittin on the bench, so I pulled the side cover off and cycled the throttle movement a few times before making any adjustments.

Turned the throttle stop, a 1/2 turn at a time...cycling the throttle a few times during each adjustment.

I got a good 2 1/2 turns before It seemed to sense the slightest sort of lazy-return in the throttle linkage.

hth,
manny








RE: alda and turbo adjustments - Captain America - 06-01-2011

What made it "lazy"?


RE: alda and turbo adjustments - mr_manny - 06-01-2011

(06-01-2011, 12:46 AM)Captain America What made it "lazy"?

this might be a better question for someone more familiar w/the internals of our IPs...

Once I get sometime behind the wheel, the throttle-stop will be one of those items on my list to adjust Smile