Going for twin GT35's. Hoping to use two stock passenger side manifolds... - Page 4 - LS1TECH - Camaro and Firebird Forum Discussion

Go Back  LS1TECH - Camaro and Firebird Forum Discussion > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Forced Induction
Reload this Page >

Going for twin GT35's. Hoping to use two stock passenger side manifolds...

Notices
Forced Induction Superchargers | Turbochargers | Intercoolers

Going for twin GT35's. Hoping to use two stock passenger side manifolds...

 
Old 01-10-2019, 12:56 PM
  #61  
TECH Fanatic
iTrader: (2)
 
Join Date: Nov 2015
Posts: 1,398
Default

I just got my VS 3582 JB twin turbos, they have the iron Vband exhaust housings standard T3 inlet. Your setup looks good! Those exhaust housings are nice as well!

Any reason you went with the 3an fitting and feed hoses? What are you running for drain -10an? I spoke with Viren about the 3582s GT35s .82AR and he recommended a -4an feed and a .060" restrictor for these Journal bearing turbos. I got some ICT billet T3 drain flanges with a 1/2NPT and I'm thinking of either a -8 or -10 drain.
customblackbird is offline  
Old 01-10-2019, 01:23 PM
  #62  
TECH Fanatic
Thread Starter
iTrader: (8)
 
mightyquickz28's Avatar
 
Join Date: Feb 2003
Location: East Chatham, New York
Posts: 1,715
Default

Thanks for the kind words.
On the oil feed fittings, that's just what I'd been using on all my prior turbos(TC76, PT7675, ON3 78mm, ON3 84mm) I'm not running any restrictors on any of them. Just the normal diameter of the -3an fittings. So far, so good. I am running -10an drains. I ran -10 on all the other turbos too. I've been using a turbowerx scavenge pump in the past because my hotside positioned the turbos too low for a gravity feed. These GT35's are up nice and high where gravity can work.
Looking forward to the results of your build!.
Originally Posted by customblackbird View Post
I just got my VS 3582 JB twin turbos, they have the iron Vband exhaust housings standard T3 inlet. Your setup looks good! Those exhaust housings are nice as well!

Any reason you went with the 3an fitting and feed hoses? What are you running for drain -10an? I spoke with Viren about the 3582s GT35s .82AR and he recommended a -4an feed and a .060" restrictor for these Journal bearing turbos. I got some ICT billet T3 drain flanges with a 1/2NPT and I'm thinking of either a -8 or -10 drain.
mightyquickz28 is offline  
Old 01-10-2019, 01:56 PM
  #63  
TECH Fanatic
iTrader: (2)
 
Join Date: Nov 2015
Posts: 1,398
Default

Gotcha, thank for the response. I currently run a -4an with a .125" restrictor on my VS billet 78/75 single as viren says not to run any on the JB turbos. I also run a single -10AN drain on that. I figured these turbos are a good bit smaller so maybe I could step down the drain to a -8an but I already have a bunch of -10 fittings so its not really an issue. My build isn't happening for a long time (gona do a twin turbo 5.3 hot rod truck kit car) just gotta come up with 20k to get the kit. So I'm just collecting parts at the moment.

Def in for some results on your build!
customblackbird is offline  
Old 01-13-2019, 04:47 PM
  #64  
TECH Fanatic
iTrader: (12)
 
Cwarta's Avatar
 
Join Date: May 2012
Location: Elm Creek, NE
Posts: 1,408
Default

I personally donít like using an fittings for drains.

my setup is as follows.

melling high volume dod pump
20/50 brad penn
4an feeds unrestricted
i return to the front cover bottom corner each side.

1/2 npt x5/8 thin Wall 45 barb on the cover and turbos
10an line, and my drains are basically flat.

i run around 50-60 psi oil pressure at idle 100# wot, with all my bypasses plugged. Plenty of oil pressure for sure. Donít really have a point to all this I guess, just joining in on the feed/drain conversation lol
Cwarta is offline  
Old 01-31-2019, 07:41 PM
  #65  
TECH Fanatic
Thread Starter
iTrader: (8)
 
mightyquickz28's Avatar
 
Join Date: Feb 2003
Location: East Chatham, New York
Posts: 1,715
Default

I continue to amaze myself at how naÔve/uninformed I can be on turbo related stuff. So, I had one good JGS400V waste gate and was going to buy another, but they're like $270 not including shipping, etc. But I found to 2 VSRacing 50mm WG for less than a single JGS400V. So I put the JGS400V in the classifieds and bought two VS50mm WG. I got them. Damn,... they're a LOT bigger (duh, 50mm vs 40mm) It's just that I assumed the 'outlet' of the WG would be larger, not the inlet. Why I didn't consider that, I don't know. So now I have all this1.5" stainless with mandrel bends etc that I can't use and I have to buy the 2.0" mandrel stainless now. Lol....

mightyquickz28 is offline  
Old 01-31-2019, 07:48 PM
  #66  
TECH Fanatic
Thread Starter
iTrader: (8)
 
mightyquickz28's Avatar
 
Join Date: Feb 2003
Location: East Chatham, New York
Posts: 1,715
Default

Other than that, things are going nicely. I've got the Blow off valve fitting welded onto the 4.0" aluminum intake elbow. I've got the oil feeds and drains routed and tightened up. I've figured out the routing of the turbo outlets to the intercooler and the output from that into the throttle body.

Right now, welding up stainless mandrel bends to go from the turbo outlets to the cat back. I'll be putting electric cutouts on those as well. The passenger side manifold, being a 'flipped' modified stock truck manifold, has afforded me quite a bit of room. I'm experimenting with two 3.0" pipes, one stacked on top of another, over the stock K-member. Preliminary positioning 'looks' like it would be feasible, still not tapping on chassis or block and not too close to plug or starter wires. I'll know by this Sunday.
mightyquickz28 is offline  
Old 02-01-2019, 06:44 PM
  #67  
TECH Fanatic
iTrader: (43)
 
Join Date: Nov 2008
Location: A-Town, Ill side
Posts: 1,407
Default

Can't wait to see some progress pics!
rpturbo is offline  
Old 02-03-2019, 08:07 AM
  #68  
TECH Fanatic
Thread Starter
iTrader: (8)
 
mightyquickz28's Avatar
 
Join Date: Feb 2003
Location: East Chatham, New York
Posts: 1,715
Default

Thanks. I trial fitted the two 45 degree bent 3.0" stainless and it clears everything just fine. I'm welding up some pie cuts today and doing some mock ups.

I've been running a 3.0" OBX intercooler since 2008 and it looks like I can leverage that into my new setup by;
  1. Routing the drivers side turbos output straight forward into the panel behind the headlights, via a 3.0" holesaw hole, then elbowed straight down to enter the intercooler.
  2. Routing the passenger side turbos output the same way, elbowed down, the traverse under the radiator to the drivers side, enter into the intercooler(I'm TIG welding a 2.5" inlet above the current 3.0" inlet)
  3. The outlet of the Intercooler will come up thru the hole where the stock radiator overflow was, takes a right and goes into a 3.0" to 4.0" transition elbow to the 4.0" aluminum elbow , to the throttle body.
  4. Both turbo's will have a supply of cool filtered air via 4.0" to 3.0" silicone reducer elbows, The 3.0" sides point down thru the stock holes (drivers side, below the fuse box, Passenger side, thru the overflow aperture). They'll have a short section of 3" aluminum tube going to large K&N air filter cones.
This is all my latest thoughts anyway.
I'll try to get some more pictures.
mightyquickz28 is offline  
Old 02-08-2019, 09:00 AM
  #69  
TECH Fanatic
Thread Starter
iTrader: (8)
 
mightyquickz28's Avatar
 
Join Date: Feb 2003
Location: East Chatham, New York
Posts: 1,715
Default

Getting so closer to having everything but still stumbling. Every day, I see more and more why fabricators charge so much money for custom turbo stuff. Sourcing this and that, the time it takes to locate and deliver, trial and error on fitment, discovering something you want isn't available. Geez.....
  1. Not using my MAF and built in IAT sensor for this, I needed to install an IAT standalone sensor in the throttle body tube. The Outside diameter calipered out to .5". I looked all around for a .5" aluminum tube of sufficient thickness but couldn't find any. I made one out of trimmed 1.5" aluminum. Just cut the portion I need and tapped that around a socket to keep the round shape, then TIG'd it. Got it welded onto the intake tube.
  2. Wastegates. Good god, this has been frustrating. My original Turbo kit from 2008 on the LT1, I opted for a turbosmart Ultragate 38mm. Later, my second LT1 kit had a JGS400V. Knowing I was going for twins a few years ago, I bought a second TS Ultragate 38mm, but it must've been either an earlier or later than my current one because it looks different. I want the twins to look pleasing and symmetrical. So, hearing about VSRacing's site, I went there. "Hey!, Look at that! I can get two 50mm gates easily!". I ordered them and they arrived. Well dumbass, they're a lot bigger so you can't use all that nifty 1.5" stainless mandrel bent and flex joints you bought. Ugh.. So today I tried to order a second JGS400V. Well , If I want to wait till the middle of May(and I don't) Jegs will have one available. Crap. So, I just went on Jegs and found the Tial 38mm and, as a side benefit, it's substantially shorter than the JGS400V. I ordered one for now and will order the other later.
My plan of routing the down pipes from the turbo's to dual 3.0" under the passenger side turbo manifold is looking good. My car is in 'Daves Speedshop" (storage facilty across the road. Perhaps 200 yds from my house) and my welder is downstairs, so I have to take my measurements at the shop, go home and make my pie cuts, go back the shop and mock it up, go home and tack it, go back to the shop and verify, go back home and either adjust or weld it. Repeat.
mightyquickz28 is offline  
Old 02-08-2019, 11:01 AM
  #70  
TECH Fanatic
iTrader: (43)
 
Join Date: Nov 2008
Location: A-Town, Ill side
Posts: 1,407
Default

Well look at it this way, having it at Daves speed shop, gets you in that winter exercise plan, with all that walking. LOL. Any progress, is progress. It's sooo cold here now, I am not working on anything!
rpturbo is offline  
Old 02-11-2019, 03:04 PM
  #71  
TECH Fanatic
Thread Starter
iTrader: (8)
 
mightyquickz28's Avatar
 
Join Date: Feb 2003
Location: East Chatham, New York
Posts: 1,715
Default

Got the new compact 38mm Tial WasteGate a few minutes ago. Look at all the springs they provide! And look how much more compact it is than the JGS400V and the VSRacing 50mm.
Came with flanges, clamps, a wide array of springs and all the fittings for the ports. You can mount the port for the dome on two places(on top/center or a side port) and 3 Air/vacuum ports (and 2 ports for water) locations on the lower half.
Pretty sweet!



Last edited by mightyquickz28; 02-12-2019 at 08:48 AM.
mightyquickz28 is offline  
Old 02-12-2019, 09:59 AM
  #72  
TECH Fanatic
iTrader: (2)
 
Join Date: Nov 2015
Posts: 1,398
Default

Originally Posted by mightyquickz28 View Post
Got the new compact 38mm Tial WasteGate a few minutes ago. Look at all the springs they provide! And look how much more compact it is than the JGS400V and the VSRacing 50mm.
Came with flanges, clamps, a wide array of springs and all the fittings for the ports. You can mount the port for the dome on two places(on top/center or a side port) and 3 Air/vacuum ports (and 2 ports for water) locations on the lower half.
Pretty sweet!


Looks good. Expensive little ******* huh. I got 2 eBay tial 38mm for like $80 shipped. Took them apart, coated the housings and reassembled. Alittle sloppy on the shaft play and being centered but should work just fine. I saw a video comparing all the top WG and I think the shortest was a turbosmart or something.
customblackbird is offline  
Old 02-12-2019, 10:02 AM
  #73  
TECH Fanatic
iTrader: (2)
 
Join Date: Nov 2015
Posts: 1,398
Default

Pic


customblackbird is offline  
Old 02-12-2019, 11:48 AM
  #74  
TECH Fanatic
Thread Starter
iTrader: (8)
 
mightyquickz28's Avatar
 
Join Date: Feb 2003
Location: East Chatham, New York
Posts: 1,715
Default

Nice!
mightyquickz28 is offline  
Old 02-12-2019, 12:46 PM
  #75  
On The Tree
 
Join Date: Dec 2018
Posts: 162
Default

I was going to go ebay WG but im debating! i know you pay for what u get.
panda240ss is online now  
Old 02-12-2019, 01:04 PM
  #76  
TECH Fanatic
iTrader: (2)
 
Join Date: Nov 2015
Posts: 1,398
Default

Originally Posted by panda240ss View Post
I was going to go ebay WG but im debating! i know you pay for what u get.
mine have worked fine. I honestly have never bought a real BOV or WG. Iíve run wyntom, CX racing, speed daddy, VS racing and all have worked. I would say if your rocking a fully built motor then u got money to burn and can afford real brand stuff... or if you road race/autoX or drift where your constantly cycling the WG. On the street the WG opens minimally and have large breaks to cool down between pulls. Plus all my motors are $500-700 or less so I donít spend more money on WGs than my motor lol. $250 GT35s get the $40 WG and a $50 BOV. If I had a 1k plus borg or precision I would prob spend the money on a $250-400 WG.
customblackbird is offline  
Old 02-12-2019, 01:10 PM
  #77  
On The Tree
 
Join Date: Dec 2018
Posts: 162
Default

that is very true! i mean i have an on3 cast 7875, sharp custom intake manifold 102tb, SEP injectors

i was going to go with speed daddy since it looks JUST like VS racing. like the same damn thing just VS has their name ontop of their. and speed daddy is half the price just i dont want to deal with boost creep or anything. was thinking of a 50mm speed daddy WG. my friend always told me to go with good parts thats why i got a Treadstone intercooler. but again on the fence of it....i was going to build my 240 for drifting but ive gone to the dark side and just wanna have street fun and maybe some track launches lol. just ordered Jegs 15x8 and soon gonna order mt et ss
panda240ss is online now  
Old 02-12-2019, 01:18 PM
  #78  
TECH Fanatic
iTrader: (2)
 
Join Date: Nov 2015
Posts: 1,398
Default

Originally Posted by panda240ss View Post
that is very true! i mean i have an on3 cast 7875, sharp custom intake manifold 102tb, SEP injectors

i was going to go with speed daddy since it looks JUST like VS racing. like the same damn thing just VS has their name ontop of their. and speed daddy is half the price just i dont want to deal with boost creep or anything. was thinking of a 50mm speed daddy WG. my friend always told me to go with good parts thats why i got a Treadstone intercooler. but again on the fence of it....i was going to build my 240 for drifting but ive gone to the dark side and just wanna have street fun and maybe some track launches lol. just ordered Jegs 15x8 and soon gonna order mt et ss
VS and speed daddy are the same. The only difference is a engraved logo and VS u get virens awsome customer service. Viren sent me a 50mm BOV, thing was machined so far off the valve wouldnít seal when closed (flash light showed a light ring around 3/4 of the valve), viren refunded me and didnít even want it back. I ordered a speed daddy 50mm off amazon and it was the same. I run that one now with no issues and a $80 speed daddy FMIC.

Same BOV, same WGs they even come in the same white box, VS gets his name engraved and offers outstanding customer service.
customblackbird is offline  
Old 02-12-2019, 02:01 PM
  #79  
On The Tree
 
Join Date: Dec 2018
Posts: 162
Default

See thats the issue that scares me. I dont want to be dealing with that. im better off just buying a $2xx wastegate and know that it will work correctly and it comes with many springs even though im just going to be running maybe 8-16 psi of choochooo noises.
panda240ss is online now  
 


Thread Tools
Search this Thread
Quick Reply: Going for twin GT35's. Hoping to use two stock passenger side manifolds...


About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: