41 replies to this topic

[dublin14]

Ok, there has been alot of discussion about will a K24 outperform a 19T and what are the Flow specs. After talking to Tech at Borg Warner yesterday, i now know it will without a doubt. This is what i was e-mailed today:

i
2474 spec. – 0.25 m³/sec – 37 lbs/min – 537 CFM


2480 spec. – 0.28 m³/sec – 41 lbs/min – 595 CFM

5324 123 2206: (possibly the 50mm you ask about?)

O.D. – 62mm with extended tip / Inducer – 49.6mm



As for this 5324 123 2206 being available… it appears to be available to us, you will just need to request pricing as it’s not been sold here in the U.S. yet.


The 2474 is what the North American S60R K24s came with (i dont know about Euro S60Rs). The 2480 is an upgrade that im going to order unless i can find something bigger.


A 19T is a 495cfm Turbo vs the K24 2474 which is 537cfm which is the same CFM as a 16G. The upgraded 2480 K24 wheel 595 CFM slightly out flows an 18G.

Im going to upgrade my K24, just not sure which way yet.

[magicaljake]

interesting......


thats food for thought.....mmm tasty



thanks for finaly finding these specs...

[550]

Sooo yeah like I was saying... not that much of a difference.

42CFM isn't that big of a difference.

[mune237]

So...if someone has a 16T they're thinking of converting to a 18T or 19T, they'll be better off just finding a K24?

[550]

The 16t to 18t isn't that huge of a difference. The K24 is a pretty awesome turbo. I like mine, but it is nothing magical. Spools just about as deadly quick as the 19t though.

[GeraldJ]

the 2480 isnt to far off from a small 50 trim or a 20g.

This is really interesting, I know that the big 50 flows somewhere around 680cfm or 48-50lbs/min. The problem you run into when comparing one manufacture to another is that there is so many different variables. I have seen some companies say that their 50 trim will flow 52lbs/min and others say 48lbs/min.

When it comes to the k24 turbo, is there as much after market for it as others? Different turbine housings, different A/R's, or different trims available?

Also I have heard that the k24 doesnt hold up well to high boost pressures.

[Chilled Man]

I think its more of ease and being easy to be a direct swap into our cars .

also will make them cheaper since now with all the totaled Rs out there , kinda dime a dozen

[GeraldJ]

Chilled Man, on 16 March 2010 - 03:20 PM, said:

I think its more of ease and being easy to be a direct swap into our cars .

also will make them cheaper since now with all the totaled Rs out there , kinda dime a dozen

I keep hearing this but it seems that not many have looked into bolting on a garrett.

Did you know that a t3 housing from the early Volvo will bolt onto a t3/t04 garrett and then there isnt much need for an adapter or maching work.

Then all you need is a $25 oil feed and some banjo to hose barb fittings for the water. The oil return is dead simple also, use the lower half of the stock return and some high temp oil safe hose.

[Mogatu'r]

Dublin... You are the MAN! I've been dying for this info!

And agreed with Justin, the other thing is I believe a K24 will behave better than a uncontrollable 19T all day long...

[Chilled Man]

GeraldJ, on 16 March 2010 - 03:25 PM, said:

I keep hearing this but it seems that not many have looked into bolting on a garrett.

Did you know that a t3 housing from the early Volvo will bolt onto a t3/t04 garrett and then there isnt much need for an adapter or maching work.

Then all you need is a $25 oil feed and some banjo to hose barb fittings for the water. The oil return is dead simple also, use the lower half of the stock return and some high temp oil safe hose.

I agree with you but with the k24 there is no modding needed just buy the parts from the dealer bolt it in and go ...

[lookforjoe]

GeraldJ, on 16 March 2010 - 03:18 PM, said:

the 2480 isnt to far off from a small 50 trim or a 20g.

The spec on the HRC is: TDO6H-20G-14CM2 650 CFM

I'm thinking maybe I should look into the 25g, if I can get my timing issues properly addressed

[Barnsley-Bill]

And a good porting Job makes them flow better

[dublin14]

550, on 16 March 2010 - 02:38 PM, said:

Sooo yeah like I was saying... not that much of a difference.

42CFM isn't that big of a difference.

Its not a "huge" difference i agree.... but as i said a few days ago, if you compare a 16T to an 18T at a 50cfm difference, an 18T maxed is usually good for 30whp more over a 16T maxed! So for most guys on here that want a bolt-on Volvo Turbo, a K24 is the best choice for HP gain. If a 19T can get 290-300whp maxed out, and if a K24 gets 320whp (with proper tuning/supporting mods of course) then that makes for some very fast 850/S70's. We already saw V70R getting 308AWHP and 364WTRQ out of a stock K24.

[dublin14]

Well, now we all know whats what! 537CFM with an option to go to 595cfm all of a sudden makes the K24 a very interesting Turbo. I also might add for some that have taken these Turbos apart, all say there very well built.

[JCviggen]

K24 would be nice if it didn't grenade as soon as you start pushing it.

[fischmama]

Chilled Man, on 16 March 2010 - 03:20 PM, said:

I think its more of ease and being easy to be a direct swap into our cars .

It is a fairly easy install; however, it isn't quite a direct bolt on like the 19t as the compressor side will hit the coolant pipe (at least - 98). It either needs to be bent to fit (can break) or newer style coolant pipe will need to be used.

[dublin14]

JCviggen, on 16 March 2010 - 05:40 PM, said:

K24 would be nice if it didn't grenade as soon as you start pushing it.

I would love to find out from all the Modded S60R owners that Run 20PSI and see if thats really true. I have known of a bunch of modded S60Rs and modded S60 T5s that have never had issues with the K24. But i guess you have seen some go.

[Captain Bondo]

A straight CFM rating gives next to no indication of a compressor's actual performance.... it gives no idea of what pressure ratio the turbo flows that rating at, or if it flows it at an appropriate pressure ratio for your application, etc.

[ozzimark]

Indeed, a compressor map would be awesome..

[EricF]

Captain Bondo, on 16 March 2010 - 06:30 PM, said:

A straight CFM rating gives next to no indication of a compressor's actual performance.... it gives no idea of what pressure ratio the turbo flows that rating at, or if it flows it at an appropriate pressure ratio for your application, etc.

Luckily most of these compressors they are talking about were designed for use in an OEM 5-cylinder whiteblock turbo application.

Still though, this discussion should end before comparing to outside manufacturers.

Unless we have compressor maps in lbs/min or kg/sec it's very difficult to compare apples to oranges. It's even a stretch to try comparing the K24 to any TD04HL's with no data.