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2017 GTi PP at VIR

victorofhavoc

Autocross Newbie
Location
Kansas City
Love seeing all the trends towards higher rear springrates for the track cars. I jumped in with my suspension setup pretty aggressive (and unproven) so it's nice to see the community as a whole figuring this chassis out
I agree. Reducing grip via spring rate is definitely preferable over beefy anti-sway bar! Some of the guys racing a4 and gti that I've run into are running 800-1100# rear rates with Hoosier a7. The one guy running 1100 was in an a4 wagon and running 650# fronts. He also gave me details of his rear valving and he was actually running on the softer end vs what I expected for 1100#.

Mini, what's it like with 3.3 camber on the road? My Z with 3.6 can't drive a straight line in paddock without me fighting the wheel, lol. It follows every tiny rut or crack it finds! 😅
 

Mini7

Drag Racing Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
The camber on the street isn’t an issue.
Will likely back it off for street driving to mitigate wear.

With the additional caster and high camber, I have the slightest tire rub on the passenger side inside fender liner. Nothing major. Guessing it’s extreme parking lot maneuvers.
 

Mini7

Drag Racing Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
Has anyone logged coolant temps via OBD11?

In the engine module there are target and actual temps for engine outlet and radiator outlet but no logging function unless I’m missing something or need to go somewhere else to log.
 

Mini7

Drag Racing Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
I agree. Reducing grip via spring rate is definitely preferable over beefy anti-sway bar! Some of the guys racing a4 and gti that I've run into are running 800-1100# rear rates with Hoosier a7. The one guy running 1100 was in an a4 wagon and running 650# fronts. He also gave me details of his rear valving and he was actually running on the softer end vs what I expected for 1100#.

Mini, what's it like with 3.3 camber on the road? My Z with 3.6 can't drive a straight line in paddock without me fighting the wheel, lol. It follows every tiny rut or crack it finds! 😅
My garage neighbor at VIR was has an E36 M3 running high spring rates front and rear with no swaybars.
 

victorofhavoc

Autocross Newbie
Location
Kansas City
Has anyone logged coolant temps via OBD11?

In the engine module there are target and actual temps for engine outlet and radiator outlet but no logging function unless I’m missing something or need to go somewhere else to log.
I looked once and couldn't figure it out either. I ended up digging up this old Bluetooth obd2 reader (elm327 flavor if I recall) and hey it could read coolant temp into torque pro! You can get those for next to nothing on Amazon. It's also what I use to connect to harry's lap timer.
 

q74

Ready to race!
Car(s)
R
What oil and water temps were you getting with the R? I cannot remember whether you are tuned?

I will be adding an oil cooler over the winter. Need to look into hood louvre options to evacuate the underhood air and heat. Curious as to whether there are any aftermarket hood options that are functional.
No tune atm, reviewing a recent log over a full (20 minute) session; ambient between 70f -> 76f, oil temps peak at 270f peak, 255f average, coolant temps peak at 230f peak, 218f average, iat at 98f peak, 89f average. Again, they are "fine", but I'm still not happy with them.
 
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GTIfan99

Autocross Champion
Location
FL
Does anyone know what's up with kook RS4's? Looks like almost none available. Can't find any in 17" sizes at all, anywhere.
 

Mini7

Drag Racing Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
No tune atm, reviewing a recent log over a full (20 minute) session; ambient between 70f -> 76f, oil temps peak at 270f peak, 255f average, coolant temps peak at 230f peak, 218f average, iat at 98f peak, 89f average. Again, they are "fine", but I'm still not happy with them.
Similar oil and water temps to my Stg1 tuned IS20 with pretty much the same HP as a stock IS38.
What are using to log the data?

I was concerned that I had an issue but it appears that this is normal for the track. I have a 19-row Setrab oil cooler that I will use with the VWR oil kit.
 

q74

Ready to race!
Car(s)
R
Similar oil and water temps to my Stg1 tuned IS20 with pretty much the same HP as a stock IS38.
What are using to log the data?

I was concerned that I had an issue but it appears that this is normal for the track. I have a 19-row Setrab oil cooler that I will use with the VWR oil kit.
I use RaceChronos Pro via OBDLink MX+ (and Garmin GLO2, 10Hz GPS) for track-data logging
 

Mini7

Drag Racing Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
APR is at VIR so I will have a word with them. Looks like they are testing a Porsche at the track.
 

Mini7

Drag Racing Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
VIR- Friday new PB

Quick update. I smoked my previous PB by 3-seconds. I’m down to a 2:13 So super stoked. I tightened up the Ohlins front and rear by 2-clicks (5-F/8-R). 28.5psi front and 31.5psi in the rear for the NT01’s gets me to a square hot setup of 38-ish psi in a 30-min session.

The Ohlins revalve by 3DM Motorsports and stiffer rear springs has worked a treat. I have very predictable rear yaw which means I can go to gas sooner. It’s hard to call it loose because I hardly have to apply any steering correction and when I do they are small inputs. If I go in hot, I got to get ready to apply opposite lock.

Oil is still getting to 275. So a 19-row cooler is going in over the winter. Catch-can had 500ml of chocolate milkshake. I had overfilled the oil by about 2-300ml. When I checked the oil, it was right on the full mark. It’s starting to get cold, so more moisture/water getting captured......?
 

victorofhavoc

Autocross Newbie
Location
Kansas City
My guess is that with the speed you're carrying you're going to see more oil in the catch can. It might just be time to go to a baffled oil pan. With more oil I'd catch a bit more sooner, but typically with the bfi can I'm seeing about 0.2L per 4 sessions.
 

Mini7

Drag Racing Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
Nice. 2:13 is moving along for a FWD econobox. Makes me think about getting serious with my R....

Nope. Too many track cars in the garage now!
First world problems. Lol. Hey as long as you are taking them to the track.

6 point bys over a 3-day DE, so real good for a FWD econobox. 3 to the 700hp tuned APR 911T, a GT3, a GT4 and a Carrera 4S. A successful DE for a GTI

The car is handling well. Still got some fine tuning to do on the suspension. Get the overheating under control. Also got to figure out what’s going on with traction control. Even with it disabled, the light was flashing. Didn’t pay it any mind but saw it in my peripheral vision. Had my hands full keeping it on the shiny black stuff.
 
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