Review: Edelbrock Supercharger Kit

[NotSoJDM]

Originally Posted by BigFatFlip

Are you referring to the internal bypass valve that closes during full throttle? For some reason I thought that still passed through the intercooler, just not compressed by the rotors

The way I'm reading it is that he is saying its air coming in the front of the bumper that bypasses the low temp radiator (I.E. Air that doesn't pass through the radiator itself but rather above and on either side of it).


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[Kodename47]

Originally Posted by NotSoJDM

The way I'm reading it is that he is saying its air coming in the front of the bumper that bypasses the low temp radiator (I.E. Air that doesn't pass through the radiator itself but rather above and on either side of it).

Correct.

Are you guys running the stock snorkel or is it removed, which I figured it was. The opening is bigger than the OEM isn't it?

[NotSoJDM]

Originally Posted by Kodename47

Correct.



Are you guys running the stock snorkel or is it removed, which I figured it was. The opening is bigger than the OEM isn't it?

The inlet to the Edelbrock air box goes in the same spot as the oem air box inlet.




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[BigFatFlip]

Originally Posted by NotSoJDM

The inlet to the Edelbrock air box goes in the same spot as the oem air box inlet.

Interesting, we actually ended up not reinstalling the factory snorkel since the instructions didn't mention anything about. Just curious, did anybody else do the same?

[CSG Mike]

You're not supposed to use the factory snorkel

[NotSoJDM]

Originally Posted by CSG Mike

You're not supposed to use the factory snorkel

😳 welp. It fit lol. Guess I know what I'll be doing the next time I pull my bumper.


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[djdnz]

Originally Posted by BigFatFlip

Interesting, we actually ended up not reinstalling the factory snorkel since the instructions didn't mention anything about. Just curious, did anybody else do the same?

I was actually just thinking "shit I didn't put the snorkel back on, I didn't see it mentioned"

[ajc209]

Originally Posted by CSG Mike

Negative; pre-IC temps will have minimal effect on post-compression, post-IC temps.

The Edelbrock kit already pulls air from the stock airbox inlet, and most of the air going in is air that bypasses the LTR. If anything, figuring out a way to make the IC work better would have a more dramatic effect.

If anything, this is pretty low IAT compared to say... a C7 Z06 or a GT500.

It's pretty high, no two ways about it, and will get worse with the smaller pulleys.

Also 2C higher inlet temps will give a similar rise in IATs post charger. Total power/heat generated by the SC is still the same and the heat exchanger setup still has the same thermal capacity, and thus the rise above ambient will be the same.

If its 24C ambient and you see 53C post charger, it will be 63C postcharger in 34C ambient.

[Kodename47]

Originally Posted by CSG Mike

You're not supposed to use the factory snorkel

I guess that the intake goes through the OEM snorkel hole enough to prevent air from the engine bay being ingested? It looks that way from the pics I've seen.

@NotSoJDM ore intake noise for you then

Originally Posted by ajc209

It's pretty high, no two ways about it, and will get worse with the smaller pulleys.

Also 2C higher inlet temps will give a similar rise in IATs post charger. Total power/heat generated by the SC is still the same and the heat exchanger setup still has the same thermal capacity, and thus the rise above ambient will be the same.

If its 24C ambient and you see 53C post charger, it will be 63C postcharger in 34C ambient.

50-60C is fine if it's consistent and I wouldn't say that it's high. It's certainly not an issue. As for pre post charger temps. that's also not quite true as you aren't factoring in the relationship between ambient temperature and the LTR and the knock on effect that will have on IAT. Consistency is the key WRT post charger temps and ensuring that there is no thermal runaway, this seems to have that in check.

[86 South Africa]

Originally Posted by NotSoJDM

Here are my temp logs from the first afternoon session:


Heat soak (read: the retention of heat in the supercharger assembly between sessions) was definitely there. However, the the heat exchanger was within its efficiency range the entire track day, as evident by the temperature data above.

I like the fact that those temps rose initially but then look pretty stable through the rest of the day... good sign it's all working as it should I think.

Thanks! (and another +1 for Edlebrock!)

[ajc209]

Originally Posted by Kodename47

I guess that the intake goes through the OEM snorkel hole enough to prevent air from the engine bay being ingested? It looks that way from the pics I've seen.

@NotSoJDM ore intake noise for you then



50-60C is fine if it's consistent and I wouldn't say that it's high. It's certainly not an issue. As for pre post charger temps. that's also not quite true as you aren't factoring in the relationship between ambient temperature and the LTR and the knock on effect that will have on IAT. Consistency is the key WRT post charger temps and ensuring that there is no thermal runaway, this seems to have that in check.

The cooling system will have a fixed thermal capacity. It doesnt change with ambient temps.

I have no idea of real numbers but lets say the cooling system has a 0.5C per KW temp rise above ambient temperature.

Lets say the SC adds 50kw of heat to the air.

50*0.5 = 25C rise in Post charger temps.

Come on now 53C IATs with a 24C ambient is high. The fact that it remains stable means it has reached equilibrium but its not ideal.

As a road only car, it will be fine but for track use i'd want to see low IATs than 50-60C.

Yes some car work perfectly fine that way fro mthe factory but its not like the FA20 has been designed with those sort of IATs in mind.

[Kodename47]

Originally Posted by ajc209

Come on now 53C IATs with a 24C ambient is high. The fact that it remains stable means it has reached equilibrium but its not ideal.

As a road only car, it will be fine but for track use i'd want to see low IATs than 50-60C.

Yes some car work perfectly fine that way from the factory but its not like the FA20 has been designed with those sort of IATs in mind.

If it's in equilibrium and is not escalating, then explain why it's not ideal for track usage (bar marginally higher IATs)? IMO for track you need the car to be running consistently, doesn't matter if that's 40/60/80/100C so long as it's consistent and tuned to run in that matter.

The tune will be consistent, that log looks rather consistent for coolant too. As far as I can see the only real effect that will have is loss of a few hp over something that will run 15C cooler for the same setup. Is that something to say that this isn't good for track use? Just because Cosworth "did it better" doesn't mean that nothing else is track worthy... The reason the Sprintex isn't totally suited to track work is that the IATs do run awry, meaning the tuning has to be on spot on and you lose power as a result. This doesn't and so long as the tune is done accordingly then I can't see the issue here. The issue with high IATs is the fact it causes knock, if I were a tuner I'd be calibrating this for 60C intake temps, use the IAT ignition to add in timing at lower temps if you can and then you'd not have to worry. 30C increase isn't huge for an FI solution either. Not perfect by any means (perfect would be no rise at all, we can all dream) but far from being not suitable for track.

I'll go as far as saying this: if this was the only TVS offering around, I bet there wouldn't be people suggesting that this isn't ideal for track based on the data above

[ajc209]

I never said it wasnt track worthy, I just said i'd want to see lower IATs for track.

This kit has been marketed as massivley upgradable with its 1320 blower and the smaller pullies but the reality is you are going to be looking at some very high IATs with more power.

I'm trying to figure out the bottom scale of that graph. It says seconds. So 4000 seconds for the oil to get up to temp. That's 67 minutes. Doesnt sound correct to me?

Is that data points at 50Hz or something?

[Deep Six]

You might want to reconsider the 0w-20 oil for regular track use. At a minimum start tracking oil pressure as well as temps.