Volvo K24 7400 Generic remap

[Vorsprung durch Technik]

Thanks Andy10v for that info

[andy10v]

I own a S6 plus spec estate and the only thing i find letting it down compared to modern audi's is the archaic front suspension design.Its not very refined and on Uk roads and can have a harsh feel.Has anyone thought about using the front suspension design of the A6 1997-2004 C5 multilink set up?.The Turrets would have to be presumably let in and a very skilled job.Has anyone attempted this?

Ryss is currently doing it to a S2 coupe.

http://www.s2forum.com/forum/showthread.php?t=68942

http://www.s2forum.com/forum/showthread.php?t=41206

[Vorsprung durch Technik]

Superb thread this INMHO with some superb links about "Prodject Big Blue" (Noggy Blue URS6 in Ireland) and the discusion/debate on Volvo K24 7400 K26/6 versus the RS2 turbo. K24 7400 K26/6 very interesting for an everyday usable car to pootle around in or enjoy the lag free power available.If this technology was available back in early 90s you feel Audi would surely have used the design in the S2 and S6,perhaps still maintaining power difference of the RS2.

I own a S6 plus spec estate and the only thing i find letting it down compared to modern audi's is the archaic front suspension design.Its not very refined and on Uk roads and can have a harsh feel.Has anyone thought about using the front suspension design of the A6 1997-2004 C5 multilink set up?.The Turrets would have to be presumably let in and a very skilled job.Has anyone attempted this?

[gmac78]

I think it's time to contact porkkis to see if he has made any further developments with this turbo and upgraded exhaust manifold, exhaust, fuel pump /regulator etc…..

[S2central.net]

Maybe 3bar sensor if Porkkis goes over 1.5bar on that generic map which I expect he does.

[andy10v]

And a 2.5 bar map sensor.

[S2central.net]

Sounds like a job for porkkis then - lot less hassle on 3B route for the requested application versus loom swaps, pin grafts etc

[andy10v]

Loom swap is dash out, loom comes through the firewall under the battery box, ecu and then along to the fusebox.

You can do a pin swap, and run the extra wires for the coils, Paul did an Excel sheet for it.

http://www.s2forum.com/forum/showthread.php?t=51419

Porkkis is the only supplier I have found for a generic 3B tune for a k24 7400. He has one for a k24 7400 and 440s on a stock 3B, about 320bhp he quoted iirc (using a machined hotside rather than a k26/6). No other mods.

PRJ did an AAN, as did Paul.

I think this is the one you mapped Paul?

http://www.s2forum.com/forum/showthread.php?t=56706

PRJ S6

http://www.s2forum.com/forum/showthread.php?t=64070

Full boost is at 2600-2700 rpm. Basically it spools better than stock.
The boost profile is:
1.7 bar from 2500 to 5500 rpm, after which it tapers off to 1.3 bar at redline.
The turbo can not do more than 1.7 bar at 5500 rpm and then 1.3 bar at 7000 rpm (98% N75 duty cycle with 1.9 bar spring) and IAT's start to go up.

So it is not as strong as a RS2 turbo - that can do 1.45-1.5 bar at 7000 rpm, but it also has no lag at all. Instant 1.7 bar all the time with a 3000 rpm power band.
It makes about 540nm and 350 bhp.

Could somebody take an 3B RS2 chipset and pull the boost down to match the above? Or is that just daft?

[S2central.net]

You should get the 4bar regulator from 7A engine. I seem to recall the one I did before felt pretty rapid but when it hit the dyno was only around 340bhp. I didn't map it to the limit - it had AAN fuel pump and I cannot remember the exact turbo variant or whether RS2 EM was fitted. It is a good turbo though - no significant lag and built boost nicely.

[gmac78]

So far i have only purchased the turbo and bosch 440cc injectors which the Volvo V70r also uses. Next on the list is a fuel pump and decent exhaust manifold but funds are not the greatest at the moment so taking time to gather all the bits and pieces. So i also need an uprated fuel pressure regulator, which one would you suggest?

What kind of power do you reckon you were making using this set up? Whats your opinion on this turbo being mapped?

[S2central.net]

Meant to add that I don't have a generic setup for that turbo but it would be based around generic rs2 setup. You would need the right injectors and fuel regulator. I did one for someone a while back.

[S2central.net]

I would hardly call it convenient - but you don't need to take out the carpet - the engine loom is fully connectorised.

[gmac78]

Well hello Mr Nugent, long time no speak!! Hope your keeping well.

Whats the crack with changing the loom anyway, is it a carpet out jobbie or does the loom have a break in it somewhere convenient?

Are there chips available for the ABY?

Cheers

[S2central.net]

Or upgrade from 3B wiring to ABY with single coils etc - easy enough if you know what yer at. Then add an ABY ecu !

[Ruffiano]

Time for a VEMS plug and play unit if you want flexiblity