rotary1307cc

iTrader: (5)

The "ratings" don't mean jack, there is no standard for the claim

Garrett has an actual standard I remember seeing but don't recall the specifics. Something along the lines of holding X efficiency at so much air flow across the core

The Garrett would stomp that bell core even if it was equal core volume.

And the Garrett has 39% more core volume than the bell as it is

rotary1307cc

iTrader: (5)

I mean there is a point where you have to look at the flow area of the core. But that 5.1" core is no issue for that on any of the v8 combos around here

SLOW SEDAN

iTrader: (13)

I totally agree, but wish the vendors selling them would assign a proper recommended rating to help customers. Granted even that can backfire, look at the debacle 417 caused with rating a tiny IC at 1500 while the core manufacturer said it's closer to 750.

As you can see the average person could get confused based on ratings alone, take these for example: Shearer claims his 24x12x6 Garrett core can support over 2000hp, but Chiseled claims their 27.8x12.7x5.1 Garrett core only supports 1300. What sense does that make to the average guy perusing the interwebs looking for an IC and the larger core is down 700hp? Now you get a hint of why guys are like screw it grab the $300 one slap it on there and send it.

AwesomeAuto

Intercooler ratings used to be based on efficient heat exchange for a certain mass flow.
1300 HP worth of air mass is the same whether its at ambient pressure or 40 PSI as long as temperature and ambient pressure are consistent.
The core is able to transfer heat based on that mass, not the flow volume.

Companies like 417 shouldn't be giving ratings for a core that isn't theirs, and are probably rating the core for its cross-flow potential and not cooling capacity.
That would explain why so many people have trouble keeping IATs down on their 1500 HP core by the time they are making only 1000 HP.

AwesomeAuto

Borrowed the cheap ebay twin turbo intercooler (dual 7 x 12 x 3.5" cores) from my corvette to dyno a 370 with twin 6673 in the next few weeks.
1000 HP goal on pump gas.

IF this $160 intercooler hits that goal and IATs aren't super high considering a dyno room with no air flow, what motivation do I have to spend $1000+ on a similarly designed Bell-core intercooler from Chiseled?

stevieturbo

What motivation did you have to buy a Vette, rather than a Honda ? You could make 1000hp with a Honda too.

AwesomeAuto

Yes, lets completely ignore the entire point of this discussion and throw the performance/budget ratio aspect out the window.
My Vette was basically a free roller, and as it sits is far more reliable, roadworthy, budget minded, and easy to work on compared to a 1000 HP Honda.

stevieturbo

So is the point of the discussion to use the cheapest parts you can find that scrape through a dyno reading on a single pull.....without any real consideration to actual use in the real world ?

SLOW SEDAN

iTrader: (13)

Scene points bruh... gotta brag to the cars and coffee crowd you have premium race car parts on your street car!

SLOW SEDAN

iTrader: (13)

Not necessarily the cheapest but is an increase in expenditures worth the reward in performance?

On a mid 8 second car, a big $1400 Bell intercooler stripe temp was ~110*, compared to a smaller $300 Treadstone intercooler stripe temp was ~130*. Its up to the respective owners to determine if 20* is worth the exponential cost. Personally on E85 its a non issue since such low temps don't impact timing.

At the end of the day some people are on a budget and other people want nice things at any cost. It's why we have so many options to choose from, no reason to get the panties in a knot.

AwesomeAuto

You're extra bitter today.

Seeing as how its the intercooler I've been using for 3 years now, I'd say I have ample real world data. IATs with this intercooler stay very managable at the track.

stevieturbo

And as such, then you have given consideration for use in the real world.

Which is different from the question you posted about a single brief dyno pull only.

Although why an intercooler would ever cost $1500 when cores can be bought much cheaper and just make end tanks...is a bit of a mystery

AwesomeAuto

I literally started that post off with

SLOW SEDAN

iTrader: (13)

You tell me, on a very popular turbo kit the Bell is a $1150-$1250 UPGRADE, that's over the cost of the included IC. https://huronspeed.com/product/new-h...-t6-turbo-kit/

ddnspider

iTrader: (26)

If the goal was to get 90% of the functionality for 10% of the price of the premium....sounds like goal met and forget the Bell

rotary1307cc

iTrader: (5)

Yeaahhhh .. that 2-3 second Dyno pull is going to tell jack

AwesomeAuto

The intercooler has been on my car for 2 or 3 years. I have AMPLE IAT/MAT data.
The dyno pull is going to add horsepower to the data pool.

Theduck

what about boost pressure going into the cooler vrs. Coming out ?

dlandsvZ28

You might want to contact Bob at Brute Speed and get his opinion on Procharger intercoolers.

I don't have a Procharger intercooler. They claim to have little pressure drop.

One thing I learned after reading how Procharger builds their intercoolers is the thickness of the tanks. The OCX and Mishimoto intercoolers, for example, have cast tanks compared to the Procharger tanks that are not cast and are thinner. Thinner means less weight stuck out on the front of the car. Whether the cast tanks heat soak and take more time to cool off - don't know. I suspect that cast tanks take much longer to cool down compared to the thinner tanks on Procharger intercoolers. Extreme temps in the high 90's and over 100 many days in the summer in Kansas makes heat soak an issue.

I purchased a Mishimoto 4 X 25 intercooler (life time warranty) because I dropped my heavy OCX intercooler and the casting broke on one side. From the outside the OCX and Mishimoto are identical and both weigh exactly the same - about 27 lbs as I recall.

I am considering replacing the Mishimoto with a Procharger intercooler because of the weight and less pressure drop. Plus they are designed for an Fbody and not universal one size fits all.

Good info in link below. Whether it is biased - you will have to judge. They say cast tanks are the best???.

https://www.mishimoto.com/engineerin...ler-selection/​​​​​​

stevieturbo

Cast or fabricated is irrelevant.

Use whatever flows best and works, and is strong enough to get the job done. And just because two cores appear similar on the outside...doesnt mean they are inside. And even then, because some of the important details may not be visible to most at a glance...again doesnt mean they are all the same.

If you have a ton of room for a large core then it's much easier to get away with cheap stuff. But as airflow demands increase, or requirements to get rid of heat increases, that is when the proper cores will shine.