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[dvst8r]

Fuck yeah!

Yeah port the HE351cw gate out to about 1". When we did Tmathis's big grey dually we just found a socket with about an 1" od and he kept porting until it would slide through.

Yeah we used a 2nd gen style manifold, with the HE351 pointed up, and the S475 down underneath, but there are lots of ways you can do it.

I have seen several where the he351 is pointed back towards the firewall, and the S475 is up towards the headlight. That one you need to pull the battery and battery box if you want it to fit.

We just used the 171702 $650 brand new in a box turbo. 75/96/1.32 (good for 800-850hp) because that is what I had laying around. If you are going to keep it under 700hp (like mathis was) the better choice is probably the 176806 75/83/1.1 T6 as it will be quite a bit more responsive, it too can be had for $650 brand new.

[bigdaddyvtec]

Thanks for the info man... A soon as I get working, Ill buy the turbo a few bends couple flanges and a 2G manifold


What fuel mods did tmathis have?

[highroller54]

Brett says hes not helping you anymore untill you answer my PM 

[brine04]

Thanks for the info man... A soon as I get working, Ill buy the turbo a few bends couple flanges and a 2G manifold


What fuel mods did tmathis have?

IIRC just an airdog or maybe he didn't even have that installed.

Was tuned on a smarty, then smarty SSR then EFI.

[dvst8r]

Bnorth has it covered. He had a lift pump on the shelf, so it was just stock injectors, stock CP3, and stock lift pump, and when the twins were on it was EFI live.

It was okay for what it was, but it was desperate for more fuel.

[bigdaddyvtec]

Cant remember whta that turd put down. I will have a LP setup ...  Prob stock sticks though at least for a while

[dvst8r]

Cant remember whta that turd put down. I will have a LP setup ...  Prob stock sticks though at least for a while

It was about 400hp, but that was on the stock turbo, it wasn't twins at that point, and it was on SSR tuning not EFI Live. He was at about 500hp when he sold the truck.

[bigdaddyvtec]

Next up... Put a ridiculously low bid on a Custom Diesel Steering box brace... Won it for 50 bucks LOL. Put it in today and wow, what a difference. Theres virtually no felt impact through the wheel and the truck is so much more precise and responsive to wteering wheel input...  Pretty sure its helping a conmpromised box bearing, but also stiffening tthre frame rails up and keeping the box itself from moving around, regardless, if you havent... DO IT...

OI read reviews that say they REALLY help and they dont do anything both... My steering was FAR form sloppy, but this... Just tightened it up NICELY... t steers like a car. VERY happy.

Ordered a new 150 GPH fuel pump and a sump today, so those will be next weekends project... After that just need a 2nd gen manifold, and my 475 to come in...

Have plenty of bends for chargepiping and DP... Have a couple 4" Stainless VBAND clamp assemblies laying around and a plethora of ste;l to make a turbo brace from... Need my buddy to donate a T6 flange to the project. Goal is t keep the battery where its at and still use the OEM box (Which will be modded)


Pics:

[bigdaddyvtec]

Sumped the tank and put the pump and -8 feed in it . Stock lift pump was at 10 PSI idle and falling to 3ish on free rev in Park...

Making 15 now. Dont move a bit.  Pump is QUIET. I mounted it directly to my frame rail and cant hear it even just bumping it. NO 1/4 tank issue how we did it... I bought like 3 gallons of fuel from BONE DRY and it was on a slight incline in the driveway. Bumped the key 3 times and it fired up like it never missed a beat.


Big pig out:


Cleaned up:


-8 pushlock hoses measured and done:


Hole cut and  sump installed (we had removed the stock lift pump, as well as the bottom screen of the canister and and drilled a hole in the bottom right over the pump, alsoi took the stock JIC fitting and cut it, then made a plug out of it so nothing woyuld get into the tank, and its still functional for later whatever the reason may be.









-8 Canister fitting and line from pump to canister installed:


All plumbing done and secured:


Pump wiring done:




3 gear roller ;O)




The pump is SUPER SUPER quiet. I cant hear it run even KOEO  :O)


2nd gen manifold bought. Order the S475 next month and get the twinsies done  :O) I was going to build my own manifold, but F it. Just going to coat a OEM 2nd gen, after building a jig... Then as I have time buoild a SCH 40 Stainless tubular manifold when I have time... It wont need to go on thew truck till its done and will be a direct swap 

[bigdaddyvtec]

Flash logic remote start installed... Literally 2 plug install. Pull knee panel, snake wires up column... Unplug keyswitch plug and plug in T harness. Re-fasten knee panel
 
Turn key to ign, wait for gauges to read, turn off ign.
Pull keys out and hit unlock...
Press lock 3x and VROOOOOMMMM
THAT simple. 10 minutes.

Found mine for 114 bux on EBAY.

SO nice 

https://www.youtube.com/watch?v=SrLz-RjJAvM





OH  ... Ordered a Chinese covered BW s475 for my Compound twin setup, found some random stuff laying around for the setup:

2 x 4" ss v band clamp and flange assemblys
4" SS  bend (3/4 of one) LOL
a BUNCH of 3" Aluminum charge pipe material bends and straight...
Hand full of 3 and 4" Silicon couplers...
4" ex tubing

Just need  a few odds and ends to be figured out. The Turbo Im using goes for 427 SHIPPED (The pics above are from Ross, its going in Brandons big single Silverado short box... Mine wont be here till Tuesday-exact same one) 

The only NOTABLE difference is the compressor covers arent as clean but I dont care. Ill have about 1000 in the entire twin setup... Maybe a tick more but not much.

Goal is to have it running by Mid June with it all done (Have to lay the truck down for the weekend and make it a 2 day affair  :O)






Air Inlet 4" (5" Od inlet)
Compressor Air Outlet    3"
Journal Bearing
Turbine Flange    Standard T4 Flange ( twin scroll )
Exhaust Outlet    6 Bolt
Cooling    Oil
Compressor    .60  A/R
Turbine    1.05 A/R
Compressor Wheel    74.8/102.4mm
Turbine Wheel    75.2 / 82.1 mm

[ratcityrex]

Fuck yeah man..... looks good. Keep posting up your build. I like :-)

[highroller54]

coming along!

[random-strike]

nice work.

front end is being done on mine right now, everything and u joints driveshafts etc... shocks upgraded steering dual stabilizer

[random-strike]

cost me about 3000 dollars to rebuild everything & the new parts, steering upgrade... etcc

[crxvtec91]

Solid fucking work!

[bigdaddyvtec]

Pre filter installed yesterday.




Deraile tranny pan, filter and fluid change + band adjust (since its all brand new in there) next and keep buying all the little shit to stick the GT42 on it. soon. 

Goal is by the rHMT meet to shit smoke all over the shop... Dad can drive the Accord if he wants.

[random-strike]

derale pan is a quality piece, got one on my truck

[bigdaddyvtec]

derale pan is a quality piece, got one on my truck

YA Thats why I bought one... Summers coming and this built trans runs hotter for sure, npot bad but around 195-210 after beating on it... Give me a chance to check the bands and get some new fluid in it after the build... Its got about 6K on it at this poit... Needs to be done before the tewins. Its the very last thing that does.


You were saying like 20-30 degrees off...  Im into it 


134 shipped...

[random-strike]

Yea mine went down about 30 with the pan and removing the thermostat. Just make sure yours is in goof working order and you should see a lit lower temps. I really have to struggle to get mine to hit 180 maybe in the summer towing my trailer in 2nd unlocked up a mountain road

[bigdaddyvtec]

BRAND NEW cooler when the Built trans went in bout 5-6 K on all of it

Probably pop the t stat out of it though... Just that c clip and let the ball come out or whatever then re install right???

Pretty sure with the tighter converter it will help even unlocked too

[random-strike]

if I remember correctly, you just take c clip off take the thermostat out, and flip the plunger around something has to be in there so you can't just take it out all the way, but if you flip it around it never closes

[bigdaddyvtec]

1 Last little upgrade before the twin setup starts getting mocked up...



Derale deep pan. REALLY NICE, 134 with gasket and magneteic plug off ebay. Put it on this weekend and check the bands. There are only 6k miles on it since I  had the tranny built, but might as well since the pan is going to be off.

I will report back with what kind of temp change I see.


Trans is built with all PATC stuff... Oversize rigid band... Transgo kit....Altos, Kolenes, Sonax everything (pistons accumulators manual valve etc), Oversized OD spring... GM governor, super single billet low stall coverter etc.

[random-strike]

dehrale pans are great!

[bigdaddyvtec]

Put the pan on and replaced the filter... For having 8K miles on it since the new trans, pan was flawless inside...

Derale holds an extra 4 Qts  and runs a bit cooler. Im going to remove the thermostat from the cooler today.

I have a pile of parts accumulating.. Really only need a -4 feed line and my 3.5" Stainless u bends to be ready to for it... Ill post pics of acceptable frame BW T6 goodness and the rest of the shit later this week when I have it all...

Could use some input on how large to go n the WG on the HE 351 DVST8R and also if I should put some pop off valves on the pipe till I get studs... 50s?

[dvst8r]

DO NOT EVER PUT THE POP OFF VALVES IN!!!!

They either don't work and overshoot or leak all the time, which is obviously like a big boost like which leads to over-sped turbos.

Just limit the fuel until you put studs in. 70psi (not that it will make that much) with no fuel still has no cylinder pressure which is what causes head gasket leaks.

To be honest if you are going to bother doing studs do the ARP625+ studs, they are a ton of money, but we have been running them for the last several seasons at 1500hp+ with no head gasket issues. The standard 425's really aren't much better than the stock bolts, unless you are going to have the head o-ringed.

If you go with the 625 studs let me know, as I have torque procedure for them.

As far as the Wastegate hole, port it out to 1" - 1 1/16". On Tmathis's dually we found a socket with an 1 1/16" od and ported until it slid freely though the wastegate tunnel. Some guys run a 1" drill bit down them, but we didn't have one handy, but we did have a die grinder and a carbide. 

[bigdaddyvtec]

Cool no pop offs.

Goal is to get it together ASAP.....  and on EFI live.

It WILL be on the JWA box for a spell...  Prob not too long. But initially will be. It is Hot unlocked.. Sure the turbo will clean it up and make it to where I can stay in it all the way through without defueling due to EGT which is really what I want to do for now, and make a bit more power till I get cash for sticks and bolts  :0


 Nozzles and studs are going to have to wait for a while... Thanks man.

What fueling did Mathis turd have going on? Was it studded? PSI?

Thank you   

[dvst8r]

Mathis never ran more than the stock sticks with EFI live. I think depending on how he adjusted the gate in EFI live between 45-55psi total, and about 500whp.

I honestly can't recall if we put studs in his dually or if we just re-torqued the stock head bolts down to 135ft-lbs and let it eat. I will text him and ask.

[dvst8r]

Tmathis did the regular ARP studs, and did them one at a time.

Some other guys have had good luck with Extreme studs. They run an H11 stud that is between the regular ARP and the 625ARP, but closer to the 625 ARP, and I understand they are quite a bit less money than the 625 ARP.

[random-strike]

what about compressor surge, you will get it really bad with a bunch of mods

[dvst8r]

Never had compressor surge in a set of twins, unless someone went silly tight on the converter and too large on the secondary compressor and not large enough on the secondary turbine.