Builds My turbo build...FINALLY! (1 Viewer)

[landtank]

I thought I'd explain what I did for the exhaust.

I bought a RAGE big bore 3" system for a diesel 80. This system needs to be modified for use with OBDII so a cat was added and two O2 bungs.

Now that I finished the system there was an easier way to do it but I'll leave that for another day.

For a cat I bought a eastern catalytic Coverter which was ECO III and a 16" oval design.

For the bungs I when with what Slee off road offers which was real nice.

The Rage system runs the 3" pipe over the frame rail. In the present for a 95 plus 80 doesn't have the room for this. However if you swap out the rear shield for one from a 93-94 truck you get gobs of room and heat protection to go over the frame rail with a 3" pipe.

I havge a couple of pics attached but they aren't so good, sorry

 

[VanGo]

Great work LT!

 

[Moby]

321 stainless, nice!

 

[Wheelingnoob]

Any updates on this?

I'm thinking about mounting a turbo on mine using the stock manifold and a "Y" type adapter with the turbo facing rearward so I can route the air filter and MAF like the TRD S/C kits. Reasons for this is a York OBA and Dual batteries, going to be a very tight fit depending on the location of the turbo and size. Hope to have a W/A intercooler too.

 

[js93cruiser]

Are you planning on making and selling a manifold?

 

[Bogart]

An update would be great, has it run yet?
Any timing ideas ?

Cheers peter

 

[subspd]

Sub'ed

 

[landtank]

Sorry guys I missed the thread when it was on top.

I've got the heat exchanger brackets made which mounts it just in front of the ac condenser. I have a the rough design for the reservoir box and need to have that made.

I've been juggling a lot of things and haven't had much time to get things done.

 

[PDoyle]

 

[Wheelingnoob]

Are you planing to do any fuel mods? I know the OBDII can cope with boost better than OBDI but I'm a bit worried about the kind of driving where you have part throttle and full boost (maintaining speed on hills or into a head wind), it would not fall into the WOT over fuelling map but will still have lots of boost and heat. The IC will help with the heat but the fuel and timing map will still be in a lean fuel high timing area.

 

[PDoyle]

Like a MAF sensor?

 

[landtank]

Are you planing to do any fuel mods? I know the OBDII can cope with boost better than OBDI but I'm a bit worried about the kind of driving where you have part throttle and full boost (maintaining speed on hills or into a head wind), it would not fall into the WOT over fuelling map but will still have lots of boost and heat. The IC will help with the heat but the fuel and timing map will still be in a lean fuel high timing area.

All the feedback that I've gotten from both SC and TC trucks that are running a WB sensor has indicated that Air Fuel Ratios with my modded MAF housing are in line with what would be considered safe operating parameters.

So right now I'm in a wait and see state concerning fuel management.

 

[Wheelingnoob]

All the feedback that I've gotten from both SC and TC trucks that are running a WB sensor has indicated that Air Fuel Ratios with my modded MAF housing are in line with what would be considered safe operating parameters.

So right now I'm in a wait and see state concerning fuel management.

Cool thanks, I know based off my years tuning and moding Supra's that the easy part is WOT tuning its the hundreds of other load points that can be tricky.

I just got one of your MAF's and would like to try a turbo set-up out on my LX soon. As I said though its just going to be a basic budget turbo set-up, nothing like your wonderful set-up.

Really looking forward to see your results and AFR's. What are people telling you are save AFR's on the S/C and turbo 1fz's?

Any thought on the ability of that 38mm Tial gate to keep boost under control on such a small turbo/big engine? I know on the 2jz cast manifolds we had issues with the 38mm W/G keeping the boost from creeping.

 

[landtank]

From a very bad memory:

On a NA engine you are in closed loop to about 19lbs of air and running at 14.7. Past that you are in open loop and I've logged AFRs at 12.3 up to the limit of the engine which is about 21lbs.

ON boosted trucks just past the 21lb mark you run into over fueling where a stock MAF is at 8.6 and the modded one is at 10.1.

Right now it seems the Tial will work OK but depending on your exhaust setup it might not.

Initially I'll be running at 7psi to break everything in.

 

[Wheelingnoob]

From a very bad memory:

On a NA engine you are in closed loop to about 19lbs of air and running at 14.7. Past that you are in open loop and I've logged AFRs at 12.3 up to the limit of the engine which is about 21lbs.

ON boosted trucks just past the 21lb mark you run into over fueling where a stock MAF is at 8.6 and the modded one is at 10.1.

Right now it seems the Tial will work OK but depending on your exhaust setup it might not.

Initially I'll be running at 7psi to break everything in.

Perfect, that sounds like its going to right in the sweet spot. You will need to watch the EGT's in the 10 AFR area depending on timing (if its retarded) it may get very hot. The AFR's them selves though if they indeed are like that should be fine though.

I have a spare Tial 38mm gate I may try on mine as well with a 7psi spring. I'm looking at doing a PT5857 T3/T4 with a .82AR exhaust housing. I'm hoping with the larger exhaust wheel an turbine the 38mm gate will be able to control boost better and keep EGT's down. The most boost I want to run is 7psi so I am trying to size the turbo for fast spool and good low end. The size of this turbo is very close to a GT35 that you are running just non ball bearing.

 

[concretejungle]

landtank, any progress on your turbo?

 

[Bogart]

Yes an update would be great!!!!

 

[landtank]

I'm working through the intercooler. Since it will be a water/air design I need to make brackets for the heat exchanger and also a reservoir tank.

The brackets have been a bit of a challenge and I'm on the third revision but they should be done. The intercooler itself will be an off the shelf unit so all that is left is the reservoir tank.

Because of the component similarities between a turbo and Super Charger I'm just finishing up the intercooler for the SC.

Initially I'm going to try a blow through design on the MAF. This will lessen the complexity a little concerning the BOV design.

I'll post up picks when I have something substantial to show.

 

[Bogart]

Thanks LT, Im sure many are watching for progress.

Cheers P

 

[CruiseOrlando]

Are you planning on mounting the turbo intercooler next to the tranny radiator?