R ver XC

CKAVolvo · Dec 29, 2013

I finally got to drive the XC with the Stage III upgrades, which has me wondering a few things.

The turning radius in the XC is so much better than the R, what are the real differences in the steering location ? parts?

The other HUGE difference in the torque control under heavy acceleration. The R even with traction control off has very little torque steering. The XC with 230 awhp and 278 torque has quite a bit even at upper speeds. Took me surprise the first few hwy pulls, an amazing difference .

I know the R is more refined but what parts or geometry exactly ?

Beck · Dec 29, 2013

The XC is a 2.5T - it's a torquee engine. Could be the tire size difference that gives better steering?

JRL · Dec 29, 2013

Perhaps your AWD is not functioning properly?
As you know, my XC has a tune and still has NO torque steer
A dirty rear AWD pressure sensor comes to mind. When they're like that you have "partial" AWD, soon it will have no AWD!

You don't have stage 3, yours now is stage 1 to 1.5
Stage 2 is tune, exhaust and a DP.

As for the steering;
1: Rs have MUCH wider tires
2: The R is MUCH lower.

Because of both of those not allowing enough room in the small fender wheel wells, the Rs come with thicker steering stops.
An XC comes with no steering stops because it has plenty of wheel well clearance, thus it has about a 4 to 5' tighter turning radius... almost like a "normal" car.

flybikes · Dec 29, 2013

JRL said:
Perhaps your AWD is not functioning properly?
As you know, my XC has a tune and still has NO torque steer
A dirty rear AWD pressure sensor comes to mind. When they're like that you have "partial" AWD, soon it will have no AWD!

You don't have stage 3, yours now is stage 1 to 1.5
Stage 2 is tune, exhaust and a DP.

As for the steering;
1: Rs have MUCH wider tires
2: The R is MUCH lower.

Because of both of those not allowing enough room in the small fender wheel wells, the Rs come with thicker steering stops.
An XC comes with no steering stops because it has plenty of wheel well clearance, thus it has about a 4 to 5' tighter turning radius... almost like a "normal" car.

Why is the xc he drove not stage III? Did you personally look at it or did I miss him specifying exactly what was done to the car somewhere.

CKAVolvo · Dec 29, 2013

Thanks JRL

What is the procedure for diagnosing the AWD sensor ? I had suspensions on the AWD system was not 100% when I test drove it but each person working on it seamed to think it was fine . Is it through vida or inspection? at least its not an angle gear lol

JRL · Dec 29, 2013

flybikes said:
Why is the xc he drove not stage III? Did you personally look at it or did I miss him specifying exactly what was done to the car somewhere.

Because right now I believe it's a tune only
Unless you have a DP it stays at stage 1 and he does not have a DP as far as I know
(or an exhaust, or an FMIC or...).
He hasn't had it long enough for much more

CKAVolvo said:
Thanks JRL

What is the procedure for diagnosing the AWD sensor ? I had suspensions on the AWD system was not 100% when I test drove it but each person working on it seamed to think it was fine . Is it through vida or inspection? at least its not an angle gear lol

Usually VIDA will sniff that code
Last Summer friend of mine bought an 06 XC70 with 18,000 original miles !!!!

Last week he emailed me and said his first foray into snow left him there with no AWD :facepalm:
It was a bad/dirty pressure sensor
Bottom line you need to get it read (on VIDA)!

I have to mention that it could be a failing collar gear, (stripped splines) and when heavy torque is applied. it can't handle it, but if you test the AWD in the air all wheels will still turn...

reward2 · Dec 29, 2013

JRL said:
Perhaps your AWD is not functioning properly?
As you know, my XC has a tune and still has NO torque steer
A dirty rear AWD pressure sensor comes to mind. When they're like that you have "partial" AWD, soon it will have no AWD!

You don't have stage 3, yours now is stage 1 to 1.5
Stage 2 is tune, exhaust and a DP.

As for the steering;
1: Rs have MUCH wider tires
2: The R is MUCH lower.

Because of both of those not allowing enough room in the small fender wheel wells, the Rs come with thicker steering stops.
An XC comes with no steering stops because it has plenty of wheel well clearance, thus it has about a 4 to 5' tighter turning radius... almost like a "normal" car.

Thanks for your answer about the steering. I had the same question as I was comparing my wife's XC with my R. Hers turns on a dime and mine - well not so much!

JRL · Dec 30, 2013

I was wrong
I checked what he has already installed and I guess it's at least a stage 2- 1/2+ possibly a three.

CKAVolvo · Dec 30, 2013

JRL said:
I was wrong
I checked what he has already installed and I guess it's at least a stage 2- 1/2+ possibly a three.

Not wrong JRL I'm just moving fast. I would call it Stage III where I'm traveling and in Jan. Today with Max speed testing only saw a max of 98F AiT. The car has a CKA Motorsports spec 19T turbo built By ARD, as well as a custom tune. Based on Ai/temps a FMIC from Snabb will be going on as well as an intake , which really will only add about 5 hp.

Also the torque steer which was so prevalent yesterday is not as noticeable today. I did some testing and it's mainly from 40 to 65. Above that just pure power to the ground. Also it could be I have new Dunlap 3D winter tires and they just hit 1K so maybe they needed a little break in time.

The car is SO fun now. More when I get time to post, details of today's Drive

A quick under the hood shot, not done

tuscani66 · Dec 30, 2013

:thumbup: Nice CKA!

soupandspoons · Dec 30, 2013

CKAVolvo said:
The car has a CKA Motorsports spec 19T turbo built By ARD, as well as a custom tune.

Ron, it looks like the options and specs that ARD has listed/available for their 19T, 20T turbos match those offered by Kinugawa turbo.

As an example, here is a link to the ARD 20T (Link) and a link to the Kinugawa 20T (Link) and a link to the ARD 19T (link) and the Kinugawa 19T (link).

Do you know if ARD is re-selling Kinugawa turbos?

Beck · Dec 30, 2013

That's a 19T on a 2.5T engine then?
Where did you get the OTE pipe?
Really nice.

CMOD_R · Dec 30, 2013

I have 340awtq and my R doesn't feel or show any tq steer

CMOD_R · Dec 30, 2013

Actually and buddy and I were talking about cx for a daily today.... Ughhh

andyb5 · Dec 31, 2013

CMOD_R said:
Actually and buddy and I were talking about cx for a daily today.... Ughhh

Haha yeah but CKA's XC is newer than what we were discussing!

CMOD_R · Dec 31, 2013

true! IM Soo lost about what im doing haha

andyb5 · Dec 31, 2013

Correct me if I'm wrong, but don't P2 XCs have longer LCAs as a result of the increased ride height. If so, that would change the turning radius and eliminate the tire rub found on stock Rs.

CKAVolvo · Dec 31, 2013

I have to say this car covers my need for performance in a DD. Sure a way lower top end end but get's there fast so its fun to dive. My 2000 Xc was my fave DD but this just might pull me out of it. The 2000 does handle better in stock form. But I will look into some coil over's. But next project is R calipers and maybe GiroDisk rotors

I guess the big side it will make a point , but won't win in the long run. So there is a LOT less temptation when driving it

ABN2 · Dec 31, 2013

Your winter tires probably are the main reason for your torque steer. I could spin my winter tires at 50+ on my R when it was RICA Stage II...and they were brand new. A few weeks later when they had almost 1000 miles on them I could still do that. The break in on tires is a short distance/time (around 50 miles if I remember correctly). Just to get oil and crap off them from the mold release.

Also is the Haldex programming is different for an XC versus an R?

Warpedcow · Dec 31, 2013

ABN2 said:
Also is the Haldex programming is different for an XC versus an R?

Haldex will react to what the 4C system tells it to do so unless the XC also has 4C (some do, but they only have Comfort/Sport, no Advanced) then there must be at least some difference.

R ver XC

CKAVolvo

Beck

JRL

flybikes

CKAVolvo

JRL

reward2

JRL

CKAVolvo

tuscani66

soupandspoons

Beck

CMOD_R

CMOD_R

andyb5

CMOD_R

andyb5

CKAVolvo

ABN2

Warpedcow

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