mr_biscuitz

iTrader: (22)

Good deal you have everything lined out again.

98Z28CobraKiller

iTrader: (17)

I've had extensive tuning experience tuning 8 sec or faster street cars (as in real driveability) with HPtuners, AEM EMS, and Big Stuff 3. I've also played with MegaSquirt2 & 3, EFILive, and FAST XFI. Nothing comes close in ease of use or capabilities out of the box. There are far more inputs and outputs than I could think of needing. Integrated 2 step, 3 step, dual wideband, nitrous control, traction control (haven't tried this yet), and boost control is coming soon (at no charge). It's compatible with Low or High impedance injectors It also has the ability to set conditions to turn on warning lights, or pull timing if say a pressure sensor drops below a certain point. Then there is the closed loop wideband that you can do based on one of the widebands or an average of the 2 and it learns on it's own. Note that at idle, sometimes there isn't sufficient airflow over the WB to do the closed loop function so getting the idle right sometimes has to be done by hand. The Dominator supposedly will even control any of the GM electronic transmissions although I haven't messed with that either as we use full manual units.

The interface is super easy to use and the datalogger is outstanding. Needless to say, I like it alot. We have it on LS2Formula's car and have been 8.4 @ 170 so far with it. We will be going to a track rental all day Monday and will be turning the boost all the way up . Trying to talk him into dropping the exhaust so we can do an apples to apples comparison against the BigStuff that he had in there before and ran a 7.9 on. That was also with more boost than we have put to the Holley System yet. FYI, We are still using the AMS1000 boost controller on his car but the idea is to get ride of all the extra **** in the car and do everything with the Holley. The only down side to making the switch is that it will not operate any of your factory gauges. The good thing is that they have these custom programmable digital gauges w/ sweep LCD that you can configure
to read anything and they just released a touchscreen that can be mounted like a Racepak but can be used to tune the car, log on an SD chip and/or display a gauge cluster. It can't be beaten for the price IMO.

I have a 4 inch mandrel bent pipe from the turbo all the way back over the rear. I'm pretty sure that there are pictures of the first and second versions of my exhaust. First version was dumped before the axle with a single Magnaflow muffler right before the dump. I then cut the dump, went over the axle, and capped it at the end with a 4" flange on the passenger side. Then I had a 3" pipe that "T"s into it with a second (Borla XR1) muffler in the stock muffler location crossing over to the passenger side for full stealth on the street. When I want to run full boost at the track, I uncap the 4 bolt 4" flange at the end of the 4" pipe on the passenger side.

A single 3" is insufficient exhaust for an NA motor this size, much less one making 700+ like yours. I do feel that my exhaust housing is a restriction and that I should be running a T6 housing with the equivalent of a 4.5-5" DP for atleast a few feet before stepping down. Remember that as the exhaust gases cool, they contract so the further back from the turbo you go, the less diameter you need. The reason that I say equivalent is that there really is no way to tuck a 5" pipe under these cars so it would have to go into a merge and then into 2 3-3.5 inch pipes, oval pipe or out the fender.

I really hate being at other people's mercy and hate even more that my car is down for what is our best season in Florida. Totally stoked that things are came back around.

TurboS10

iTrader: (12)

The PT88h has a T4 flange. But the housing itself is much larger and runs a bigger turbine than the other t4's P,F,Q,or S wheels. Some of the PT88's have an 83mm others are an 87mm turbine from my research. The 78GTS has a 75mm turbine and will back up on a 355 at 5k or less when running 15psi.

To get the bigger turbine you'd need a PT80h, S475 or 480, GT45 or twins.

2006 z51 vette

iTrader: (10)

That is what I was hoping to hear about the system...

Seems Like I will need the following for my build (67 nova, single turbo, 370ci LQ4, ported 317 heads, LS9 camshaft, methanol, 60 or 80 # injectors with a 4L80E trans and 3.XX gears)

Holley Dominator EFI box
power harness
LS2 harrness
drive by wire harness
transmission harness
Seems to be around 2K for everything...

vs.

Stock Harness from Truck
ECU to run system
Transmission harness and ecu box for it or standalone box
tuner suite
boost controller
Methanol controller

Snyper

iTrader: (27)

I had the same problem! I pulled the engine and the whole left side of the block was covered in exhaust soot from the manifold not being tight. 3 of the bolts were loose and never realized it. I wonder how much it was huring me.

98Z28CobraKiller

iTrader: (17)

I think that the basic Dominator setup with engine harness, coil harness, power harness and 2 WB02's is about $2000. Not sure about the drive by wire or the transmission harnesses.

It would only be hurting you when you are trying to max out the turbo. I wasn't able to make more than about 21-22 psi. Maybe now I can squeeze another couple of lbs out of it.

Anyway, Short block is done.

Monte4ever

iTrader: (2)

I have a plastic fill neck on my LS. What years came with aluminum or is that something you made? I'm trying to run a catch can breather system similar to yours.

98Z28CobraKiller

iTrader: (17)

If you remove the plastic fill neck, you can screw the cap straight into the valve cover via the slightly raised flange that the fill neck screws into. My buddy cut that flange off the valve cover, welded a tube on the end and then welded the flange back to the top of the tube. There is also a hole in the fill tube that goes thru into the aluminum bend that is wrapping around it so it vents thru there as well into the catch can. I have to use a funnel to put in oil or pour it in slow (as if it were a slide) so that it doesn't end up running into the catch can.

Monte4ever

iTrader: (2)

Oh...ok thanks.

SPRAYED 01

iTrader: (22)

I'm thinking of doing the 370 wIth a pt88. I'm going to run ported 241s due to lack of money. Do you mind sharing your can specs?

98Z28CobraKiller

iTrader: (17)

It's an off-the-shelf Livernois Stage 2 cam. 231/231 595/595 113 IIRC. It's all towards the beginning of the thread.

Longblocks together. Also, a buddy came over with the plasma cutter to notch out my frame so I can build a cold air intake and put a big filter on it. I was limited to a very small filter picking up hot air directly behind the radiator.

I'm in no rush at this point as I ran into a small delay. The Holley EFI harness does not support the stock oil pressure sending unit and, of course, the hole is a crazy thread size (16mm X 1.25) that needs adapted to a regular 1/8 npt pressure sending unit. Hopefully Murray's will have the fitting Monday for me.

6techniques

iTrader: (7)

If its not one thing its another...hope the fitting adapter situation works out for you.
Are you going to run piping between the inlet and filter for your cai?

Reject

iTrader: (24)

car has alot of history

JJ_TURBO

iTrader: (12)

Do you happen to have video of the car in idle?

BTW are you still using stock main bolts?

98Z28CobraKiller

iTrader: (17)

Yeah. Race Parts Solutions is local to me and they have all the silicone couplers, clamps and tubing that you could imagine. I think that I will step it up from 4" at the turbo inlet to 4.5 or 5" tube if I can fit it and see what kind of filter options I have. I'll take some pictures of the notch in the frame in the next few days. My welder friend has to come out and box it in still. Then I'll see what I can squeeze in there.

Hopefully it has some future also. Honestly, I'm real nervous as I've never assembled a short block myself. I'm told that I have too much reverence for it but it's just something I've never tackled before.


I'll see if I can find something. It'll be at the track with the cutout open, more than likely.
Yes, stock main bolts. Next go around it'll get ARPs and I may have my engine builder pin the mains.

If you go to 1:30 in this video, that's about the best idle sound I can find. That's with the cutout open (thru one muffler) and idling about 900-950 RPMs. It's not loud or lumpy. I like to creep up on my pray. With the cutout closed it goes thru a second muffler and reduces to 3" so it's VERY quiet. Like bone stock or quieter.

http://www.youtube.com/watch?v=9UAjWXvOZos

dudeman

iTrader: (43)

car sounds stock lol.

what size tire do you run?

what tire pressure?

man that thing leaves hard!

98Z28CobraKiller

iTrader: (17)

Mickey Thompson 325/50/15 @ 18-20 psi

JJ_TURBO

iTrader: (12)

Sounds good, I’m more into the loud, lumpy sounds, I went thru several mufflers to find the loudest, but at the end what ever works best has to be.

Good luck with this shorblock.

98Z28CobraKiller

iTrader: (17)

The new computer and harness should be here tomorrow. Almost done putting it together.

Monte4ever

iTrader: (2)

Nice!!!!!!!