5858 low boost issue

[TTA976]

Sounds like a good match for a 6262 /.63 pte

Nice times BTW.

Joe

 

[dvernst]

How many blades?
And what does it stall at 0 psi?[/QU

 

[dvernst]

2710-2730 at 0 psi

 

[dvernst]

Steve suggested today that I measure how long the arm is on the wastegate assembly where the actuator connects to, and compare it to my GN downpipe. Turns out they are exactly the same, but on the inside the center of the oversize puck is .2" farther. That gives way more leverage to the pressure side. Hopefully we're on to something here.

 

[V6sleeper]

That's a 16 blade, should be stalling more then 2800

 

[dvernst]

The converter seems to be working really well. About 7% slip up top. On the line I can build 20+ psi off the footbrake.

 

[TT/Ameasap]

You shouldnt be able to get 20psi just off the foot brake with a matched converter. I'm running a 17 blade and a large turbo. It may be because the combo of billet wheel and e85 tho. I would try the bigger housing if you have it on the bench. Otherwise I personally would upgrade to a bigger turbo.

 

[TT/Ameasap]

I forgot to mention that I get 3psi on the foot brake.

 

[BEATAV8]

I think we'll have it fixed by adjusting the geometry of the pivot assembly, give the puck less leverage and give the waste gate canister more leverage. You can probably send the new turbine housing back to PTE. Will wait and see.

 

[dvernst]

You shouldnt be able to get 20psi just off the foot brake with a matched converter. I'm running a 17 blade and a large turbo. It may be because the combo of billet wheel and e85 tho. I would try the bigger housing if you have it on the bench. Otherwise I personally would upgrade to a bigger turbo.

5858 for life!

 

[Chuck Leeper]

Here's a couple

Thanks!

 

[dvernst]

Air test gauge-$10.99, Teflon tape-$.99, 3/4" pvc close nipple(Threaded nipple)-$.43, 3" X 1-1/2" flex coupling-$4.19, 1-1/2" flush bushing-$1.29

 

[dvernst]

Menard's receipt

 

[TT/Ameasap]

5858 for life!

Haahaa Ok.....ok.

 

[dvernst]

I forgot to mention that I get 3psi on the foot brake.

I bet your new build will get more. You'll probably get 3 psi at idle!

 

[TT/Ameasap]

To be honest, I have no clue whats going to happen. I'll make it work tho..Always do.

 

[BEATAV8]

Modified accordingly.... 1/2" longer than it was

 

[dvernst]

View attachment 259925 Modified accordingly.... 1/2" longer than it was

OK so far this has completely fixed the problem! Pulled the actuator rod about 1/8", and hooked up everything temporarily using a RJC boost Controller. Before was 11 psi with no hose hooked up at all. Now 24-25 psi ,and holding really smooth. Was really erratic before.

 

[BEATAV8]

Gangsta!

 

[TT/Ameasap]

Now head to the track with 29psi and get a 10 sec slip!