LB7: s475 over stock build

[danzick]

Good to know! Made an appointment Friday. Drove it at speeds above 70 this morning. Spool up time is great in 5th. On a tune that would stead stream black at wot, it's crystal clear. On small hills with the cruise set at 78 it runs about 11-13. Flat seems to be around 7 if I remember right.

 

[bluessmax]

Good to know! Made an appointment Friday. Drove it at speeds above 70 this morning. Spool up time is great in 5th. On a tune that would stead stream black at wot, it's crystal clear. On small hills with the cruise set at 78 it runs about 11-13. Flat seems to be around 7 if I remember right.

I loveeee 75 over stock kits!

 

[Chevy1925]

It probably needs some MAF sensor work done to the tune. I'm sure Kory already took care of it in your new tunes though.

X2. Without it spool up time will suffer and maybe a little performance.

Do you have a adjustable regulator for the wastegate? Max effort tune you should be seeing 50ish total boost

 

[danzick]

Got my wheel well reshaped, and my battery mounted.

 

[disposablehero]

Well done. Can't wait for some times at the track.

 

[danzick]

I loveeee 75 over stock kits!

I'm thinking the same so far. Can't wait to get your new tunes installed.

 

[danzick]

X2. Without it spool up time will suffer and maybe a little performance.

Do you have a adjustable regulator for the wastegate? Max effort tune you should be seeing 50ish total boost

I have not tried the max effort tune yet. Just been running my 160 tune. No adjustable reg. Just took out my ppe valve.

 

[Chevy1925]

I have not tried the max effort tune yet. Just been running my 160 tune. No adjustable reg. Just took out my ppe valve.

you may not get max fuel for the tune till you get the new tunes flashed in so id wait on mashing around on that. your more than likely going to need a regulator to get max boost and make it run its best

 

[danzick]

So how would I go about putting an adjustable regulator on it and knowing how to adjust it?

 

[Chevy1925]

the one im using and others as well

http://www.mcmaster.com/#4545t61/=skciw6

plumb it into the wastegate line of the stock turbo with the flow direction pointed towards the wastegate. screw it clockwise for the wastegate to see less boost (increase overall boost on your boost gauge) or counter clockwise for the wastegate to see more boost all they way to actual boost. when you get it close, it wont take but a 1/4 turn to make a big difference in boost numbers.

 

[danzick]

So I use a regulator on the stock to adjust total boost to my liking?

 

[Chevy1925]

yup, its changing how much drive pressure you are diverting to the 475, this is why a drive pressure gauge is well suited so you can get it dialed in just right

 

[danzick]

Could I set it running a second boost gauge? I already have a bung welded in for that.

 

[Chevy1925]

the second gauge wont do you much good. watch EGTs and set the boost around 50psi at WOT in the big tune, then mess with it up and down and see what way egts run the coolest and keep it there.

becareful though, running a max effort tune with a healthy fuel system and not keeping it in the upper rpms can lead to bent rods in a hurry. Kory may or may not have de-torqued the tune some to help there, problem is it will feel a little laggier than without it. its a give and take deal

 

[danzick]

I tried to be pretty clear with him that I wanted stock interal friendly tunes. Hopefully that's what I got. I guess I will just have to wait and see how it goes when I get the new file loaded up.

 

[Chevy1925]

i sure he took care of ya then

 

[Bryce418]

It probably needs some MAF sensor work done to the tune. I'm sure Kory already took care of it in your new tunes though.

I'm sure switching to a 5" intake skewed the readings a fair bit.

 

[danzick]

what really screwed up the readings was a bricked ecm.

 

[disposablehero]

Dang. That sucks. What bricked it?

 

[Bryce418]

Ouch! I had mine scare the shit out of me when my laptop died mid flash once.

Sorry to hear about that.