HD automotive turbo kit

[fjbj40]

Please elaborate on the 8-10 psi no intercooler comment. This thread is me learning and will hopefully help educate members down the road. I’m going to have there J PIPE ceramic gel coated to keep it looking good.

With the properly selected turbo the temps at that boost level will not be excessively hot because your not compressing the air as much. The higher the boost the hotter the air gets during the compression process.

Adding an intercooler with that low a boost increases the intake volume which will slow down the reaction time of power delivery.

Because an intercooler adds a restriction the turbo works harder again to regain the pressure drop from the increased restriction, this adds more heat, again.

If boost temp is around 200 degrees, typical with low boost, and ambient temp is between 70-120 degrees then the temp drop at that level will be minimal thereby yielding not much of a power gain. Complexity/price vs return is not worth it.

Intercooler sits in front of rad thereby reducing airflow and making air hotter having a negative effect on cooling.

This is why an water to air intercooler is best if you decide to intercool.
Heat exchanger for water is smaller than an air to air so radiator interference is not as bad.

Cheers

 

[Fj80oregon]

With the properly selected turbo the temps at that boost level will not be excessively hot because your not compressing the air as much. The higher the boost the hotter the air gets during the compression process.

Adding an intercooler with that low a boost increases the intake volume which will slow down the reaction time of power delivery.

Because an intercooler adds a restriction the turbo works harder again to regain the pressure drop from the increased restriction, this adds more heat, again.

If boost temp is around 200 degrees, typical with low boost, and ambient temp is between 70-120 degrees then the temp drop at that level will be minimal thereby yielding not much of a power gain. Complexity/price vs return is not worth it.

Intercooler sits in front of rad thereby reducing airflow and making air hotter having a negative effect on cooling.

This is why an water to air intercooler is best if you decide to intercool.
Heat exchanger for water is smaller than an air to air so radiator interference is not as bad.

Cheers

Thanks for the education!

 

[kdubbya]

Ergo the enthalpy of water vs air. Really interesting on that heat exchanger, I had honestly never heard of an air to water intercooler in automotive applications until now.

 

[ChargedSHOTaco]

Ergo the enthalpy of water vs air. Really interesting on that heat exchanger, I had honestly never heard of an air to water intercooler in automotive applications until now.

Um…a radiator.

 

[kdubbya]

Um…a radiator.

Ummm I meant specifically in a turbo application.

 

[Fj80oregon]

Received this today!!!

 

[pgmatt]

That looks great and has most of the hard parts done for you. What did it end up costing in USA dollars?

 

[Fj80oregon]

That looks great and has most of the hard parts done for you. What did it end up costing in USA dollars?

This can be found on their website. Easy to convert AUS to US dollar.

 

[heckler]

That's awesome and pretty quick. Will be interested in how well the J pipe fits.

Are you going to run a boost controller?

 

[Fj80oregon]

That's awesome and pretty quick. Will be interested in how well the J pipe fits.

Are you going to run a boost controller?

Fitting it up tonight on a spare motor. No boost controller initially will adjust after getting it all fitted and plumbed up and running.

 

[Fj80oregon]

Mocked up on a spare motor for now! Fitment is great. Only issue is the tab that secures the j pipe to the exhaust manifold needs a little adjustment to line up the holes. No biggie.

 

[pgmatt]

This can be found on their website. Easy to convert AUS to US dollar.

Sorry I was referring to shipped cost but I see you posted previously it was around $300 for freight so that isn’t too bad.

 

[xetura]

Mocked up on a spare motor for now! Fitment is great. Only issue is the tab that secures the j pipe to the exhaust manifold needs a little adjustment to line up the holes. No biggie.

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Lookin good. Now I'm contemplating doing the same thing lol. I'd need to run a 7th injector at a minimum, though since I have the crappy mechanical afm. Can't wait to see more!

 

[fjbj40]

Lookin good. Now I'm contemplating doing the same thing lol. I'd need to run a 7th injector at a minimum, though since I have the crappy mechanical afm. Can't wait to see more!

Same here, but it’s doable though

This is going to be a thread I strongly follow!

 

[thecapedcapper]

Thanks for all the great pics, especially of the downpipe and oil line routing as their site doesn't have that info at all. Any particular plans for the exhaust?

 

[OffRoadScott]

6-8 psi on an 80 is a game changer. Finished building my own J pipe/turbo setup back in December and it is fantastic. 97 lx450 with 7-9lbs of boost, only other thing I did was upgrade the fuel pump to a higher flowing kyosan unit and swapped the maf to match a larger inlet tube. Working on an airbox to be able to hook up to the snorkel while using an air filter from a 100 series. My fully built LX on 35's w/ factory 4:10 gears loaded up for a week of camping will outrun my wife's bone stock 93'. Mountain passes that used to be a ~55 are now a 70-75 easily and could do more if I wanted to push it. If I was doing it again I'd probably choose an internally gated turbo to make life much easier

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Just curious, why did you choose to not go with a intercooler be it either a air/air or air/water? Looking at your setup and setups on the 80 diesels installation and running the charge pipes would be a pain in the butt, but might be worth reassurance you are cooling the air going into the motor.

 

[Fj80oregon]

Just curious, why did you choose to not go with a intercooler be it either an air/air or air/water? Looking at your setup and setups on the 80 diesels installation and running the charge pipes would be a pain in the butt, but might be worth reassurance you are cooling the air going into the motor.

The problem is cutting up the core support and having to outsource the work. If I end up needing one I will get air to water as the heat exchangers are much smaller. This has been well documented with low boost the engine can mange just fine with out a intercooler.

 

[Fj80oregon]

Thanks for all the great pics, especially of the downpipe and oil line routing as their site doesn't have that info at all. Any particular plans for the exhaust?

Exhaust will get outsourced and will be connected to the stock system with the cats. The down pipe and exhaust will get ceramic gel coated to keep temps down in the engine bay. Will be 2.5” and have a flexible stainless coupling to help longevity. The passenger side of the motor moves up and down under acceleration so the intake will also be silicone hose/stainless pieces.

 

[Brindleboxer]

Lookin good. Now I'm contemplating doing the same thing lol. I'd need to run a 7th injector at a minimum, though since I have the crappy mechanical afm. Can't wait to see more!

Did I miss something, can this work on a pre-OBD11 truck? I was under the impression, from the WIT'S End turbo, that you couldn't run unless OBD-11 or a stand alone computer.

 

[Fj80oregon]

Did I miss something, can this work on a pre-OBD11 truck? I was under the impression, from the WIT'S End turbo, that you couldn't run unless OBD-11 or a stand alone

Did I miss something, can this work on a pre-OBD11 truck? I was under the impression, from the WIT'S End turbo, that you couldn't run unless OBD-11 or a stand alone computer.

It can be done with after market engine management from what I understand. But this thread is about this kit and not OBD1 so please post elsewhere. There is about 100 threads to research if you look it up.