Volvo K24 turbo in audi application.

[Ruffiano]

nice !

Do they not catch anywhere or have you modified the arches ?

no modifications at all, still has all the plastic bits, running bilstiens with H&R springs, no rub anywhere 17x8 wheel ET35 (reduced to ET30 with spacers, they fit without but fill the arches better with them)

I also run 245/40 blizzak snow tires.

[driftin jo]

nice !

Do they not catch anywhere or have you modified the arches ?

[Ruffiano]

This S2 with the Volvo turbo has 245's on it ? ?

245/40 17s. and yes I can slide around my back end, ask Ross. I didn't know the trick of over inflating tires, mine were at around 36 psi, should have over filled and beat another b7 RS4.

tires in question:



picture of dirty wheel from my review on the Armorall wheel protectant:

[driftin jo]

Comparing the pantera that ran the same day to daves s2 would be like comparing apples to oranges. Comparing two cars that are running the same basic drivetrain minus the rear diff, with very similar tire widths (245s vs 255s) would be like comparing two different breeds of apples. There are obviously differences, but the general genetics is the same. I do think audi overrated the rs4, but this dyno shows a consistent 25% drivetrain on awd vehicles inside and outside the marquee, at these relatively low power levels. 300hp STIs and evos make 225whp, 996 turbos make around 320 stock and 365 chipped, Wrx rated at 230 make 170.... to say that daves only had a 20% loss would be the externality. Still, at 20%, it made rs2 levels of power...

And weight, on a load based chassis dyno? That only applies if you are accelerating. Place 2k pounds on top of an engine on an engine dyno and see if that affects the output of the motor.


What's the world coming to if you can't compare the cars that dynoed the same day? That's about as good as it gets with the average citizen resources!

Weight on the tyres increases the friction and it is a lot.
I have seen 10hp gain from increasing the tyre pressure on a dyno run and similar things from the same S2 running standard 205/55/16 then running 225/40/18, you can even see your average MPG
go down from ~27 to ~23 by putting 225's on an S2, unless you put 45psi in the tyres but then the car takes off over every bump in the road.

This S2 with the Volvo turbo has 245's on it ? ?

[Jon441cc]

Any numbers on egt's ?

[andy10v]

if they are that easy to find why did i source one for you?

Want to source some more?

How much was shipping?

[URQguy]

Comparing the pantera that ran the same day to daves s2 would be like comparing apples to oranges. Comparing two cars that are running the same basic drivetrain minus the rear diff, with very similar tire widths (245s vs 255s) would be like comparing two different breeds of apples. There are obviously differences, but the general genetics is the same. I do think audi overrated the rs4, but this dyno shows a consistent 25% drivetrain on awd vehicles inside and outside the marquee, at these relatively low power levels. 300hp STIs and evos make 225whp, 996 turbos make around 320 stock and 365 chipped, Wrx rated at 230 make 170.... to say that daves only had a 20% loss would be the externality. Still, at 20%, it made rs2 levels of power...

And weight, on a load based chassis dyno? That only applies if you are accelerating. Place 2k pounds on top of an engine on an engine dyno and see if that affects the output of the motor.


What's the world coming to if you can't compare the cars that dynoed the same day? That's about as good as it gets with the average citizen resources!

[driftin jo]

Suppose we know your weight is 100 kilos. One day we are out on the playground and you ask me what I weigh. I tell you I don't know, as no scale is present. I do spot a perfectly balanced teeter totter on the play ground. We get on and the teeter is perfectly balanced. What can we say about my weight?

Three rs4s dynoed the same day, and this car was clumped in the middle of them for whp. What does that say about the output of the Volvo turbo?

Well that really depends as you don't know the drive train losses of an RS4 compared to an S2.
For instance if you say an RS4 has 450hp in Audi's book and on this dyno they all read X amount less then you take X from your figure and thus you have your HP. The trouble with this is the first sentence, the losses in different cars will be different and although the RS4's is newer they tend to have more loss than a typical S2 due to much wider tires and being heavier so your calculation could be way off. Of course your old S2 drive train could be ****ed and wasting loads of power (more than a typical RS4) and thus you could be making more power than you think ! I know its a ball park figure but you shouldn't mix apples with oranges to get the average weight of an apple or orange.

[URQguy]

They're just probably slightly shorter legged horses.

Dyno is a good device for measuring difference during tuning. For exact power figures... well umh.
That 360 car might show 320 in some other dyno. Which one is correct? Probably neighter.

Suppose we know your weight is 100 kilos. One day we are out on the playground and you ask me what I weigh. I tell you I don't know, as no scale is present. I do spot a perfectly balanced teeter totter on the play ground. We get on and the teeter is perfectly balanced. What can we say about my weight?

Three rs4s dynoed the same day, and this car was clumped in the middle of them for whp. What does that say about the output of the Volvo turbo?

[prj]

Good info, thanks.

[porkkis]

K26#6 50mm can be found in Porsche 944 220hp version. Also some ancient Audi K26 used the 50mm exducer. I guess it's typ43 200 5T.

The usual Audi K26 turbine is 56mm exdu.

[prj]

if they are that easy to find why did i source one for you?

Because I did not have to bother dealing with two people
I believe that hotside is off the old 10vt K26 turbos, and there are plenty for sale here.

[Ruffiano]

K26 #6 fits perfectly though, and it's not expensive.
Why bother modding the stock one?

if they are that easy to find why did i source one for you?

[prj]

K26 #6 fits perfectly though, and it's not expensive.
Why bother modding the stock one?

[Ruffiano]

What hotside do you use? does it work with a k24 7000 hotside?

k26/6

however i know of 2 people using modified k247000 hot sides. (well one up and running, one soon to be running)