Forge wastegate adjustment

[E.Murray]

Finally got to the point of buttoning everything up after my turbo porting, WBO2 and boost gauge install, valve seals, and swap from stock to Forge Billet w/g from SportMachines. First run, everything seemed fine, but was a bit rich and only hitting 7 psi. Shortened rod a couple turns, dialed fuel back a bit on the TurboTweak chip and was at 10 psi max. Went to shorten the rod again and ran out of travel after 1.5 turns. It looks like there should be plenty of thread left (see pic), but it definitely wouldn't go anymore. I even pulled the end of the rod off to verify that it should go and re-threaded it, but that's all she'll do. I went out to run it and hit 13 psi with lots of stuttering at max boost. The waste gate has the stock 14-18# spring (according to SportMachines). It looks like I should be able to adjust it farther, but it doesn't go. Also, it seems like the hole lined up pretty well with the w/g arm without having to tug on anything. Should it go shorter?

 

[Sportmachines]

Re: Forge wastegate adjustment

Yes the arm/rod should go shorter. The spring is a 14-18 psi spring. Thats how all of them are spec'd for us. Usually they make more boost at the same rod length of the stock WG. Turn it another turn or two and you'll be there. Be sure that you're not turning the whole rod and just the adjustment portion. If there is further issue, please contact us directly so that we can help remedy the situation. Thanks

 

[atkonkler]

Re: Forge wastegate adjustment

When I set mine up with the forge wastegate. ...After I was done porting....I installed it and then set the adjustment on the wastgate with it out of the vehicle.....If your adjusting while in the vehicle make sure you take out the inner wheel well splash shield....it makes access alot easier and no burns to your forearms like I have after not removing them because I was lazy......If that still doesn't help I'm sure someone here can help you or give tom a ring ....super nice guy. ....

 

[E.Murray]

Re: Forge wastegate adjustment

Just posting the follow-up for any future searches. I don't know what the deal was, but the wastegate actuator would absolutely not go short enough, even though there was plenty of thread left. I measured against the original and was long. Must have been some messed up threads way up in the female part. I ended up just using a dremel to cut 1/8" off the end of the threaded rod. First run, I hit 15.5psi with rock solid boost control. :tup:
Count me in as a fan of the Forge unit. Once I made that little "adjustment" it does exactly what I hoped. It's hard to say which of the changes I made (port of turbo or w/g swap) had the greater effect, but the end result is tabletop-flat boost wherever I set it, despite the missing cat, free-flow muffler and sportmachines billet wheel. Loving the turbo response, now!
Thanks for all the help.

 

[InfinitiTech351]

Re: Forge wastegate adjustment

I am currently having a similar issue, which way did u turn the adjuster on the waste gate to get more boost? Righty tighty? Lefty loosy? Lol ..and how many turns did it take? i disconnected my manual boost controller and hooked up the factory solenoid and messed with the waste gate (checked the diaphragm ) and now im only hitting 10psi...let me know...thanks

 

[It's just a six]

Re: Forge wastegate adjustment

The shorter the rod, the higher the boost.