truckdoug

iTrader: (25)

So I have gotten most of the mechanicals sorted out and have begun some test fires.

Today I tried to build some boost on the sloppy brake.

As soon as I came up to ~90kPa my timing went negative 6 degrees. For the life of me I cannot see whats taking it out.

I need a second set of eyes on this thing. I'm tired and just cant see it.

Here's the log and the tune. I try and build some boost around the 3:30 mark and I loose timing right about 3:40 on the nose.

RelentleZ

iTrader: (4)

Check "Max Torque vs. RPM" in TQ management. I'd also zero Spark Retard vs. TQ Reduction. My bet is these tables are playing hell with the brake. Would explain commanded 22 degrees and seeing -9.5.

truckdoug

iTrader: (25)

thanks bud, I was just now reading a thread in the FI section that pointed to those two tables as the culprit.

I'll give it a try later on today and report back.

RelentleZ

iTrader: (4)

You're very welcome. Let me know how it goes.

truckdoug

iTrader: (25)

yup fixed it. no idea why it didn't cause problems with the previous 5.3/gt45

just glad it works.

RelentleZ

iTrader: (4)

Were you using the 80e sloppy brake with the 5.3 setup?

truckdoug

iTrader: (25)

yessir. the only thing I can think of is that maybe I redid my tables for the six liter swap using a tune from prior to adding the sloppy brake.


its really the only thing that makes sense.

RelentleZ

iTrader: (4)

Well I'm glad you got it sorted. Read through all 27 pages of your build thread yesterday. Very clean setup.

subeone

iTrader: (5)

didnt know you had a build thread doug

truckdoug

iTrader: (25)

haha yeah thanks guys, its been a long road. hoping for 700 wheel out of this combo.

p.s. Sube, im still kicking my own *** for passing up your converter

JakeFusion

iTrader: (7)

Nice. I'll have to check out your build thread this week when I have some time.

subeone

iTrader: (5)

haha theres always next time

where's a link to your build thread? can't find it!

Edit* saw your signature lol.