Intercooler kit for SC- gauging interest

[Atoyot1031]

...but I'm not one for scoops, so if you're a non-scoop mentality person, waiting for Rick's offering might just be a good idea. Just a thought.

I wasn't into scoops or vents, but the underhood temps associated with a SC dictated this route for me. Driving at high altitudes normally pulling a camper, something had to be done to avoid over heating. Perhaps this will not be an issue with a TC. I'd be surprised as TCs by nature deal with more heat.

What is you timeline for completing the IC and TB attachment?

3D mock up this weekend and put the dimensions of the attachment into CAD drawings. If all goes well with the mock up, place order for the prototype next week (unsure of lead time), and have attachment part machined. Cutting the hood is no big deal, and I plan on attaching with black 3M VHB tape (flame suit on) as I've got it in my shop and the scoop I have would be tediously annoying to make a mounting bracket for. All things considered, I'd like to have this on the road before Moab season begins for me (March).

Hopefully I'll be able to post up some pics of the mock up this weekend.

 

[CycloSteve]

Here is another option from Mr. T, the Hilux had a TM IC, and bolt-on scoop in the non-US markets. I have not tried to price or directly source these in France, but will be back there in a month, and can see if my local dealer can get them, and for how many Euro. These also have a full mounting bracket, gasket, etc. I am also looking at the possibility of getting a used one from a wreckers in the UK.

ToyoDIY lists as follows:

76181 BULGE, HOOD
76180-0K906 1 € 147.06

76186 SEAL, HOOD AIR INTAKE
76186-0K010 1 € 56.70

Not cheap, unfortunately.



Steve

 

[Corbet]

interested, hoping to add forced induction this fall

 

[Tapage]

I'm using the larger STI scoop. I've already got it painted to match and ready to go in my shop. I'm working on a 3D mock up of the IC. If all goes well, I will order the prototype and spec the new flange.

looking close on how it will looks like .. I'm going top mointed Air to Ait in my 80 and still not decided on hood scoop ..

The new hilux scoop it's larger and centerd .. ( same as Fortuner )

the option that I like the most now it's the new frontier ..

 

[Atoyot1031]

There was a hold up today on the mockup. The given dimensions do not match the provided drawing. Back to the engineer...

I also made a couple minor changes to the overall design he had provide me in his sketch. Hopefully, I'll have something back from him soon so I can mockup, approve, and order the IC.

The flange piece will happen when I mock up as I will need to pull all of the existing hoses and the plenum piece that the original SC kit comes with.

 

[beachcomberspi]

Interested as a S/C with smaller pulley going in soon will require better cooling.

 

[Nemo]

I'm definitely interested.

 

[Rusty]

Without speaking for Rick, I know the kit is in progress & I was the "weak link" as he's been/was waiting patiently on me for a part - but it's in the works, will be simple to install & AFAIK there's NO NEED AT ALL to go cutting your hood, or putting on an airscoop - for those of us who prefer the understated look from a performance standpoint.

(Yeah, as much as a 80- series with armor, big tires & lift & whatever else we all have is "understated")

I plan to do a louvered section just over the exhaust manifold & just on that side, but I'm not one for scoops, so if you're a non-scoop mentality person, waiting for Rick's offering might just be a good idea. Just a thought.

Interesting to watch this air to air kit develop, but I must admit I'm more interested in Landtank's air to water exchanger for sure. No carving up the hood and it must be more effective.

 

[Atoyot1031]

Mock up complete. The only thing I found that needs to move is the EGR vacuum modulator, but that should be easy enough (if I decide to keep the EGR system at all). Here are a few pics:







The mockup was 1/4" taller than the actual IC will be.

We are machining the flange that will go between the intake plenum and the IC (where the 2" gap is pictured at the outlet of the IC) this week. I'm hoping to order the prototype IC this week. Spec'd by the engineer, although small, the IC with a 3.5" core is sized for ~300hp and ~4.5l displacement.

 

[Rusty]

After looking into this further it sounds as though an air to air intercooler would actually be better for a vehicle that is driven long distances. I originally thought that an air to water cooler would be best but from what I've read perhaps not, air to water types tend to suffer long term heat soak, the water can't exchange the heat as fast due to the lower volume of available cooling water compared to the ram air flow generated by a moving vehicle.

Supposedly air to air intercoolers start to become effective at about 20 mph.

If this cooler is spec'd for 300 HP, is this adequate? I thought that the s/c boosts beyond this. Is this still likely to be efficient for those intending on an undersized pulley producing more boost, say 10 psi?

 

[Atoyot1031]

The sizing should be sufficient. Stock HP was 212. If memory serves me, the SC adds ~80. I'm bored .040 over and planning on slapping on a 2.8" pulley after the IC. My understanding is that the sizing is sufficient after talks with the engineer that I have been working with. I gave him all the numbers as well as intended usage (for me, road trips hauling my popup and wheeling). He was comfortable with the size. He was less comfortable with a top mount as it doesn't "maximize efficiency". Due to an already full engine bay, I don't see any other choice for me. Hence the development.

 

[hzavarce]

Interested ! Thanks

 

[wearsabrowncoat]

looking good.

 

[Corbet]

Any idea how much air will actually get forced down a hood scoop? I just think about how drops of water will sit on my hood while driving without much movement. Do you have any plans for a shroud between the intercooler and hood? Our Subie has one to force the air through the intercooler.

Mock up looks great by the way.

 

[inkpot]

Any idea how much air will actually get forced down a hood scoop? I just think about how drops of water will sit on my hood while driving without much movement. Do you have any plans for a shroud between the intercooler and hood? Our Subie has one to force the air through the intercooler.

Mock up looks great by the way.

This airflow question has been of concern for me also. A long time ago someone posted up some serious studies done by taping sections of yarn all over the hood and driving at speed to determine high/low pressure/windspeeds. IIRC, the middle of the hood was not nearly as ideal as the front 25% of it. Since I am also running a highly modded fan and clutch setup and the JDM fan, I may have more pressure under the hood than most rigs. Therefore, I am looking at the possibility of using a hood scoop that is tall enough to include a low profile electric pusher fan. Hate to add all the complications that involves, but think this would be the most practical way to get good airflow thru the IC at low ground speeds. I often see really high intake temps on my Scan Gauge when wheeling in the desert rocks. I don't know what the limits are, but I get nervous when my intake temps are 40+ over the stockers I run with. I figure that the ambient air temps of 110 have got to be a lot better than under the hood air temps of around 200. Really like the shape of the new IC. I looked all over for a unit that would fit well, but I have never found anything nearly this good. Thanks for the work on this. John

 

[Atoyot1031]

Any idea how much air will actually get forced down a hood scoop? I just think about how drops of water will sit on my hood while driving without much movement. Do you have any plans for a shroud between the intercooler and hood? Our Subie has one to force the air through the intercooler.

Mock up looks great by the way.

No quantitative information on airflow. I taped the thread to the hood in the area where the hood will be and it was flapping. As for a shroud, I have to find out what the final dimensions will be between the IC and the metal bottom of the hood. My initial plan is to use some EPDM adhesive backed seal. Also since the airflow portion of the IC is considerably narrower than my Subie scoop. My plan is to only cut a hole large enough to accomodate the IC. Hopefully, this will attempt to force more air through the smaller hole.

This airflow question has been of concern for me also. A long time ago someone posted up some serious studies done by taping sections of yarn all over the hood and driving at speed to determine high/low pressure/windspeeds. IIRC, the middle of the hood was not nearly as ideal as the front 25% of it. Since I am also running a highly modded fan and clutch setup and the JDM fan, I may have more pressure under the hood than most rigs. Therefore, I am looking at the possibility of using a hood scoop that is tall enough to include a low profile electric pusher fan. Hate to add all the complications that involves, but think this would be the most practical way to get good airflow thru the IC at low ground speeds. I often see really high intake temps on my Scan Gauge when wheeling in the desert rocks. I don't know what the limits are, but I get nervous when my intake temps are 40+ over the stockers I run with. I figure that the ambient air temps of 110 have got to be a lot better than under the hood air temps of around 200. Really like the shape of the new IC. I looked all over for a unit that would fit well, but I have never found anything nearly this good. Thanks for the work on this. John

John, your not unique in your setup. I'm running 24k in a new blue hub with a 3.0 fan blade and a 14" Pro-Comp pusher fan. I've also cut two large holes in my hood for vents (https://forum.ih8mud.com/80-series-tech/278155-pardon-me-while-i-vent-my-hood.html). However, I doubt that these things do much to the under hood pressure since the bottom is completely open. I've found with my hood vents that heat definitely rises, but they do not seem to be a source of pressure relief. A small fan sounds like a neat idea, especially if you could trigger a switch on speed (kinda like the MSD RPM activated switches). I wonder how much it would hinder airflow when it is not running though. Interesting thought...

 

[Tapage]

I would like to run puller fan instead pusher .. the idea it's you can turn it off at HW speed .. and having it under the IC it will allow more air flow through the IC

 

[Atoyot1031]

Agreed, but no room for a fan underneath...

 

[inkpot]

Agreed, but no room for a fan underneath...

Exactly. There is a lot of room on top of the hood to mount a tall scoop for holding a fan without blocking your line of sight over the front of the hood. John

 

[sledge916]

I need this

I am in, hope the cost can come down with all this intrest. I have the hole cut in the hood and scoop on just waiting to install a intercooler. I hope this happens as I need this.

Sethro