V1 Mikes Extended, Full Frame Goblin - 2009 Cobalt LS with 135k donor

[Desert Sasqwatch]

Be cautious of the physical size of the type 15, it is BIG. I'm mounting it above the transmission, at angle for the best fit, and to keep it from the heat above the valve cover. My fuse box will be relocated, since I'm sure that's the next comment coming. Send me an IM if you would like to go over the details.

 

[mike_sno]

I might have some really stupid questions... Again, I did not, have not and likely will never take a Goblin apart My new hobby is building harnesses. 11h in so far and done with the main harness. Could not work on it the past few days, as I am doing it outside and temperatures fell below 60F. ( Florida Flex )

Does the LNF Goblin have an Air to water Intercooler? The LNF Engine I bought, came with a gigantic Air to Air IC.

What means: Type 10,15,... I see on there website the different types but the numbering doesn't really make sense to me.

DFKC A2W --> DF Kit Car Air 2 Water --> DF sens you an Air 2 Water IC when you buy a kit and use a LNF donor?

Is it better Air to Air, or Air to Water, Water to Air ? I have the set up from my SC with Air to Water.

 

[mike_sno]

Ever lived in the desert and survived the hellish temperatures at the end of July, beginning of August? You cannot have enough cooling capacity for your turbo engine, especially with a healthy tune and larger turbocharger. Having a higher capacity intercooler (mass) and dual heat exchangers - that will have water mist to take advantage of the low humidity evaporation - are a must have to pull the heat out of the intercooler.

I have the mounting figured out for my larger intercooler, so this has been thoroughly thought out already including the path of the charge pipes from the turbo through the intercooler and into the intake throttle body. At some point when I get further along I will post photos of this in my build log. But here's a sneak peek:

I took the fuse box holder out of my Goblin for building the harness. when I looked at it, I thought, what a waste of space. I was actually thinking of making another Fuesbox holder which looks not as big, but wasn't thinking about relocating the fusebox completely. But that's a project for 2029.

 

[Desert Sasqwatch]

DF LNF kit comes with an air to water (A2W) intercooler that mounts above the valve cover and a heat exchanger (HE) that mounts up front behind the radiator.

The types are general categories used by intercooler manufacturers. Look into the Frozen Boost website link for sizes.

Air to air or air to water intercoolers have their pluses and minuses. If you have an A2A already, go with it if you're not into wrenching (much) on your Goblin.

 

[Rttoys]

You can never have enough cooling. With my mods, the supercharger overcomes the cooling system quickly at autocross from June to October. I have added rads to “fix” that. This summer will be the test. Go for overkill and never look back.

 

[Brian74]

You're also only as good as the intake air. An air filter sitting close to the engine drawing in dead recirculating conductive engine heat will not do any good for IAT temps.

 

[Rttoys]

Yep. It all plays in together.

 

[mike_sno]

Ok, here is where I am at the moment. I prefer Air to Air. I think I would get coller IAT instead of air to water, then water to air. Plus i could avoid water pump, reservoir,hoses, ..

BUT Air to air is large. In no way I can use the existing IC, it's gigantic and former narrow and long,Hot air over/behind the engine won't help.

That brings me to Air to water. I put a relative small IC right above the engine and just work with 2 water hoses and can place a radiator wherever I want. Putting the radiator to the front would fit it hot air after the engine radiator. Putting the radiator in front of the engine radiator seems to be impossible.

What is to say about the tube length from the Turbo to the intake? If I look at all the pipes I have it's rather long. With Air to water, I could go from the turbo just over the engine to the intake. Less turns, less volume,... Does this even matter or is the turbo producing so much pressure that the Watergate opens at some point anyway ? Will shorter pipes lead to cooler IAT because the turbo doesn't have to compensate the losses on the way?

Here we go again, I feel like I'm over thinking this

Does it even all matter if I go e85 at some point?

 

[mike_sno]

You're also only as good as the intake air. An air filter sitting close to the engine drawing in dead recirculating conductive engine heat will not do any good for IAT temps.

Where did you placed your air filter?

 

[comegetjoe]

Where did you placed your air filter?

Using the DF supplied piping, MAF tube, mount and filter.

 

[comegetjoe]

Yes. You're over thinking it.

Justin Reed has his IC behind his engine, exhaust goes over the intercooler and shoots out the back of the car.
Mounting the heat exchanger for an A2W behind the engine coolant radiator isnt THAT bad of an idea. Youre just letting everything battle i. Your head.

Make a decision that has less evils, looks sick and go with it.

 

[Rttoys]

You are way overthinking this. There are several sc and tc goblins with the heat exchanger up front behind the rad, without issue. If you want cooler air over the HE rad you can install the NACA ducts offered by DF, or build something similar. Even like I stated before, you can run the rad(s) in the back too or even under the fuel tank, like I did. There’s several options.

unless you plan to run some big numbers, a simple water to air system will work fine Or if you plan on stock then increase, you increase the ic with it.

Heat Exchanger Air Duct Kit

This kit will duct fresh air to the heat exchanger under the battery box. It includes a fiberglass shroud, shroud mounts, silicone splices, NACA ducts and mounting hardware.

store.dfkitcar.com

 

[Desert Sasqwatch]

Ok, here is where I am at the moment. I prefer Air to Air. I think I would get coller IAT instead of air to water, then water to air. Plus i could avoid water pump, reservoir,hoses, ..

BUT Air to air is large. In no way I can use the existing IC, it's gigantic and former narrow and long,Hot air over/behind the engine won't help.

That brings me to Air to water. I put a relative small IC right above the engine and just work with 2 water hoses and can place a radiator wherever I want. Putting the radiator to the front would fit it hot air after the engine radiator. Putting the radiator in front of the engine radiator seems to be impossible.

What is to say about the tube length from the Turbo to the intake? If I look at all the pipes I have it's rather long. With Air to water, I could go from the turbo just over the engine to the intake. Less turns, less volume,... Does this even matter or is the turbo producing so much pressure that the Watergate opens at some point anyway ? Will shorter pipes lead to cooler IAT because the turbo doesn't have to compensate the losses on the way?

Here we go again, I feel like I'm over thinking this

Does it even all matter if I go e85 at some point?

Read through this, it may help better understand the differences for A2A and A2W.

https://www.mishimoto.com/engineering/2022/01/a2w-a2a-intercooling-tech?mtm_campaign=19661475732&mtm_kwd=&mtm_source=google&mtm_medium=cpc&mtm_content=&gad_source=1&gad_campaignid=23510903710&gclid=EAIaIQobChMI1Kbs8_O4kgMViC1ECB3MPAx4EAAYAyAAEgJEs_D_BwE

 

[mike_sno]

Probably discussed 100 times, but putting the F23 on a LNF requires that spacer or not?

 

[comegetjoe]

Probably discussed 100 times, but putting the F23 on a LNF requires that spacer or not?

It's all about what clutch you use and the air gap.

 

[mike_sno]

It's all about what clutch you use and the air gap.

If possible the existing clutch from the f35.

 

[mike_sno]

That's the clutch which came with the motor. Seems to be one of this ones.

 

[mike_sno]

Does anyone know which Fusebox ground wire he is talking in the video at Minute 1:24?

Is it this ground wire from 0:29 in the video? I thought that's for the Intercooler pump.

 

[Ross]

All black wires should be grounded to the frame. Except these 2 black ones:
1. big wire that go from the battery 12V+ to the starter, and
2. the wire that goes from the starter to the rear fuse box.
I really wish Chevy would have made these big wires red.

It really doesn't matter which black wires goes to which grounding lug, just as long as they get to the frame.

 

[mike_sno]

Harness progress: Currently at Video 9 1/4. 22h in. Solid progress. I hope it all works out! Still, longer than I wanted

Thinking about the engine swap. 2 Questions: 1. Did you installed the Engine harness first and then put the engine in? I can't remember how I did it last time.

2. Did you guys install the boost line from the Turbo to the Intake before you installed the engine?