With the help of a member on the NOLC..Who described how to adj. the boost actuator I now am pegging the boost guage thanks, LTNBOLT , who wrote an excellent article on how to do the adj..

 

Houndog

Post the thread here so that we can also read it.


Thanks

 

thanks to LTNBOLT (chuck) for posting this for us!!!

heres the thread on nloc http://nloc.org/ubb/Forum2/HTML/000645.html




The boost actuator is located on the driver's side of the intake close to the firewall. There are (2) 10mm bolts that hold it in place. One you can see in the pic and the other is on the backside of the actuator closest to the firewall. Pay attention to the slots location in reference to the bolts so you will know where you started. Loosen the bolts and raise the actuator up until you see the LEVER raise up off of the STOP. Lower it back down until the LEVER just touches the STOP then tighten bolts. Now, this is the way it was explained to me but I found that set this close the boost gauge would rise to almost "0" while cruising at 80. I went back and readjusted so I could cruise at 80 with no needle movement unless I barely moved the throttle (and I mean barely). This setting was probably halfway between the stock setting and the just touching setting. The first thing I noticed was the needle jumped immediately to 10lbs and climbed from there. Stock it jumped to 9.5lbs and climbed. The total boost also increased by a 1/2lb to 1/4lb more. I also ran a tick quicker with my fastest mph at the track. The temps were warmer and there was less traction (it rained until the track opened). I think this adjustment is worth a small amount of speed. Besides, it's free.

 

Your welcome. Actually Cobra R at SVT Performance.com asked if I would write something about the adjustment. So, I pulled out the digital camera, wrote the instructions and the rest is history. I mistakenly forgot to post it on this board too.

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Later,
Chuck
Black 00
Chuck's Lightning Page

 

I've been messing with this adj. and its still not right.I only had 6 psi at first max..Then I did the adj. and I would jump to 6 then about 4000 rpm's jump right to 10..I knew then I had boost but I can't get 10 right away..Any ideas ???
Thanks

 

Should the boost go immediatly to max, or rise with the rpm's? Mine jumps to 5 or 6
at first wot, then rises to 10 with increased rpms.

Mark
Silver 2K

[This message has been edited by Ak.Silver2K (edited 11-21-2000).]

 

Houndog,

gforce might be right. Your gauge maybe sticking. Do you have the stock filter and box. I have a K&N with 2 holes cut in the bottom of my box and a lot of people have aftermarket filters to increase airflow. If one of these two is not the problem then I don't know what to tell you.

------------------
Later,
Chuck
Black 00
Chuck's Lightning Page

 

Thanks Guys, probally the guage,,I have the PSP filter kit installed..I'll order a Boost guage,,I just gave one away thinkink I don't need it...

 

Could doing this cause any possible issues for the truck? On my truck I get 8 PSI right away and then it goes up to 10. My truck is stock with 3K on it.

Thanks

John


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93 Teal Cobra #4656
2000 Silver Lightning #4524