Sweet! That's not bad at all for a complete kit.

 

all hell somebody sold parish a turbo

 

Damn thats badass parish... Guessing this will be our first turbo truck? much less our first rcsb 6l 4wd....

 

Hi all. Seth is a little, "swamped" this morning so I'll field some of the questions.

1. Boost is adjustable with the wastegate spring standard. The kit comes with a 5, 7, and 9 pound springs in addition to a set of shims, which allow for fine adjustment. With the addition of manual boost controller, a $70 option, the boost of most kits is adjustable from 5 to 22 psi.

2. The tuning included is a complete PCM tune, which is fueling at both part and WOT changes, spark advance changes, knock parameters changed, etc. in addition to correcting for tire/gear changes etc.

3. The MAF tables are acutally hard limited in the PCM at 511.9gms/sec. The whole MAF table is rescaled in the PCM tuning, mainly because of the position of the MAF after a bend in the pipe. This tends to want to make the air hang to the outside under part throttle and throws off the LTFT's. After days of driving around with a wideband 02 plugged in and logging all stats based on the WB 02 vs. EFI Live/Autotap, the MAF table was rescaled. The truth be known, it was 460gms/sec we saw, not 490 , and that is WAY pushing it for stock pistons, even on 100 octane.

4. The engine oil pressure is fine at 60ish, turbo's don't like pressure that high though. The turbo oil feed fitting has a pressure restrictor in it that regulates the oil pressue down to a level that is more "turbo friendly" at the inlet of the turbo center section.

5. The passenger side uses the stock manifold. After testing of various other kits (LT1 and LS1 cars), we found that it's just not worth the money for the customer unless they have some extra money burning a hole in their pocket the just have to spend. Logging 8 pulls and taking an average with both a stock passenger manifold and a tubular header, we saw an increase of about 4 horsepower at 10psi. Not really worth the $400 is would take to get a passenger side header, plus coating, don't you think?

7. The passenger side front 02 is right behind the passenger manifold in the exhaust flow, the driver's side is 2' behind the turbo in the downpipe. This allows for fine tuning of each bank since you know what the passenger side is doing, you figure out what the driver's side is doing by the change that occurs to the readings as the exit the turbo.

The other two questions (about the exhaust and oil stuff) call Seth, I'm not sure if he knows which model you have.

If you have any more questions for us, ask here or just give us a call. Thanks for all the positive input guys/gals.

Dave

 

LOL my thoughts exactly!

Parish congratulations man. This kit looks pretty clean to me. My boost setup (plus injectors) that I made costs around that price too Oh well I hope to still see that 500hp mark soon.

For the question bank: How are they tuning for the kit, Superchips?
:What kind of steel (number) are the manifolds made from?

They have to be changing airflow tables with the intercooler, at least the 'throttle cracker table' to keep things from stalling.

 

The tuning for the kit is a tuned PCM via LS1 Edit. When a customer is ready to install their kit, as soon as they start the install the remove their PCM and send it to us. We have same day turnaround on custom tuned PCM's, so they get their tuned PCM back right away. All done

The kits are 304 stainless. We have a race kit in development that uses a totally different header/wastegate design, but it's meant for nothing short of a max effort HP monster (800+). It uses 321.

Keep those questions coming

 

This is probably a stupid question but here goes. Is there such a thing as too much cold air?? During the winter here it is possible to see -60*F Ambient. Hell it was -40* here a few days ago. I am guessing that it wouldn't be a problem as the turbo diesel trucks don't seem to have any problems.

Parish - congrats on the turbo, looking forward to seeing pics and video after the install.

 

NO... in the diesel and some 3/4 ton trucks with duel batteries, the gusset bracket is removed... the water box is sitting in the extra battery tray that is installed at the factory.

 

Thats a beautiful truck!!

 

As long as you dont bypass the MAF sensor, thats what controls the air to fuel mix, i found out that if you remove the snorkel from the throttle body and rev the engine, it will choke out and stall, thus making it difficult to clean your throttle body with gum out or something of the sort.