*The FL5 Track Junkie Thread*

[Rexpelagi]

How has your experience been with PWR radiator so far?
I'm about to order the same one. I don't need triple pass. Do you have the intercooler also?

At this time I don't see a need for the triple pass (although I fully believe it's more effective) as I've not had excessively high ECTs. Last year with just the PWR track spec radiator, HEL oil cooler, and the Acuity reverse flow hoses I was usually peaking around 215-220°F, and if I ran the interior heat it would bring it back down. This was with the stock FMIC.

This year, so far, with the PRL FMIC, I've been in the same range. At TNiA for the one session I was able to do I was running 210°F or under with the same cooling setup listed above, PRL FMIC, and @siwelnosaj 's cooling plate in ~75°F ambient (which was the first event trying the cooling plate out), but I haven't had the current cooling setup + the PRL FMIC in summer heat yet, although I'm sure that's coming.

All temps above were also still with the factory hood vent rain guard in place. I should add, I did put about a bottle (12oz) of water wetter in when I installed everything (the rest of the coolant is factory Honda 50/50 coolant) - theoretically that's helping too, although not sure how much.

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[siwelnosaj]

At this time I don't see a need for the triple pass (although I fully believe it's more effective) as I've not had excessively high ECTs. Last year with just the radiator, HEL oil cooler, and the Acuity reverse flow hoses I was usually peaking around 215-220°F, and if I ran the interior heat it would bring it back down. This was with the stock FMIC.

This year, so far, with the PRL FMIC, I've been in the same range. At TNiA for the one session I was able to do I was running 210°F or under with the same cooling setup listed above + @siwelnosaj 's cooling plate in ~75°F ambient, but I haven't had the current cooling setup + the PRL FMIC in summer heat yet, although I'm sure that's coming.

All temps above were also still with the factory vent rain guard in place.

That's good info and a solid temp range for coolant. What ambient temps have you been running in? The event I will be testing at in 10 days should be in the 80s, possibly low 90s. I'm curious to see how the full package reacts.

 

[Rexpelagi]

That's good info and a solid temp range for coolant. What ambient temps have you been running in? The event I will be testing at in 10 days should be in the 80s, possibly low 90s. I'm curious to see how the full package reacts.

I didn't get my FL5 until mid-summer last year, and didn't have it on track until the fall, so I don't think it's been on-track above 80-85°F yet. Since I'm in Nashville it definitely gets hotter than that, as we will touch close to 100°F in the summer with moderate-to-high humidity, so I very well may run into an issue, I just haven't so far.

Based on the long range forecast, Road Atlanta next weekend looks like it may be in the mid-80's °F, so that will be the hottest I've had the car out in with the current setup.

I should add, I did put about a bottle (12oz) of water wetter in when I installed everything (the rest of the coolant is factory Honda 50/50 coolant) - theoretically that's helping too, although not sure how much - I figure if I can get ~3-4°F (or more) each from a few different things (Acuity hoses, your cooling plate, water wetter, hood vent cover removed which I haven't tried yet, etc) it can add up to a noticeable improvement, but we'll see.

 

[Tougefl5]

At this time I don't see a need for the triple pass (although I fully believe it's more effective) as I've not had excessively high ECTs. Last year with just the PWR track spec radiator, HEL oil cooler, and the Acuity reverse flow hoses I was usually peaking around 215-220°F, and if I ran the interior heat it would bring it back down. This was with the stock FMIC.

This year, so far, with the PRL FMIC, I've been in the same range. At TNiA for the one session I was able to do I was running 210°F or under with the same cooling setup listed above, PRL FMIC, and @siwelnosaj 's cooling plate in ~75°F ambient (which was the first event trying the cooling plate out), but I haven't had the current cooling setup + the PRL FMIC in summer heat yet, although I'm sure that's coming.

All temps above were also still with the factory hood vent rain guard in place.

That's reasonable. My plan is to run pwr intercooler, radiator probably get HKS oil cooler because I love the cut out bumper idea. Might try the cooling plate and run as much e85 as I can. Waiting on the mugen hood coming this winter.
I'm not a track rat so hopefully my plan works.

 

[Rexpelagi]

Going back to alignment, I dialed the front back to around -2.8° for negative camber.

After I did that I thought I'd take a picture of last year vs. this year, and as you can see from the labels this isn't a perfect comparison, but the previous set (same size, same wheel width, same offset) still did similar sessions on the front + additional sessions on the rear, and still isn't worn through.

 

[Club Version]

Going back to alignment, I dialed the front back to around -2.8° for negative camber.

After I did that I thought I'd take a picture of last year vs. this year, and as you can see from the labels this isn't a perfect comparison, but the previous set (same size, same wheel width, same offset) still did similar sessions on the front + additional sessions on the rear, and still isn't worn through.

Didn’t notice you are running RE71RS.

From my experience they are definitely happier with camber around -2 to -3. When I used the Advan A052’s I noticed they like much more camber, as I had destroyed the outside edge at -2 camber.

 

[simpleisbest]

Going back to alignment, I dialed the front back to around -2.8° for negative camber.

After I did that I thought I'd take a picture of last year vs. this year, and as you can see from the labels this isn't a perfect comparison, but the previous set (same size, same wheel width, same offset) still did similar sessions on the front + additional sessions on the rear, and still isn't worn through.

that wear pattern of the one of the left looks awfully like toe wear.
I wonder if its possible that with the increased front grip, you are getting increased dynamic toe change in the front when under heavy load. Have you thought about upgrading the lower control arm bushings (especially the rear compliance bushing)?

 

[CG13]

Going back to alignment, I dialed the front back to around -2.8° for negative camber.

After I did that I thought I'd take a picture of last year vs. this year, and as you can see from the labels this isn't a perfect comparison, but the previous set (same size, same wheel width, same offset) still did similar sessions on the front + additional sessions on the rear, and still isn't worn through.

Your 8 session front looks like my Trofeo R after 7 sessions with -2.75 camber. Mine wore out the inside, similar to what you’re showing. Previously, at -1.5 camber, I had a similar outcome on the outside of a PS4S.

I’m at a loss on how to get decent tire life on track. Stock camber I destroy outside edge, more negative camber and I lose the inside. I’ve never had any similar issues with any other cars.

7 sessions, 45 hot laps on a 2.21 mile course:

 

[PointByPatrol]

I can't wait for the "WTF" looks at my next driver's meeting!

 

[m3bs]

Well, OK….

 

[Rhorn]

Your 8 session front looks like my Trofeo R after 7 sessions with -2.75 camber. Mine wore out the inside, similar to what you’re showing. Previously, at -1.5 camber, I had a similar outcome on the outside of a PS4S.

I’m at a loss on how to get decent tire life on track. Stock camber I destroy outside edge, more negative camber and I lose the inside. I’ve never had any similar issues with any other cars.

7 sessions, 45 hot laps on a 2.21 mile course:

What other cars are you referring too, and what alignment lasts the longest for you?

 

[Rexpelagi]

that wear pattern of the one of the left looks awfully like toe wear.
I wonder if its possible that with the increased front grip, you are getting increased dynamic toe change in the front when under heavy load. Have you thought about upgrading the lower control arm bushings (especially the rear compliance bushing)?

It's possible, I don't know enough about the changes of toe with load on this platform, although I don't know that it would be much different than last year? I ran the same tire setup, just with different springs and dampers (and with my rates I should be better-controlled vs. last year). I do know for sure I struggled more with corner exit power delivery which definitely would be consistent with the wear, so we'll see how this weekend goes and go from there.

 

[CG13]

What other cars are you referring too, and what alignment lasts the longest for you?

I had track oriented alignment on GT-R (2 different ones) and Lotus Evora with negative camber and I never had any accelerated or uneven tire wear like I’m seeing with the FL5.

The other cars I’ve tracked (Focus RS, 911 GT3RS) didn’t have any aggressive alignments, but they also never destroyed tires.

 

[Rexpelagi]

Your 8 session front looks like my Trofeo R after 7 sessions with -2.75 camber. Mine wore out the inside, similar to what you’re showing. Previously, at -1.5 camber, I had a similar outcome on the outside of a PS4S.

I’m at a loss on how to get decent tire life on track. Stock camber I destroy outside edge, more negative camber and I lose the inside. I’ve never had any similar issues with any other cars.

7 sessions, 45 hot laps on a 2.21 mile course:

Was this with rotation? Are you making a lot of power? With rotation last year and the lower camber (~-2.5° front) I actually got pretty even wear on all 4, with basically full use of the tread (as you can see in my picture).

 

[sackofcheese]

Going back to alignment, I dialed the front back to around -2.8° for negative camber.

After I did that I thought I'd take a picture of last year vs. this year, and as you can see from the labels this isn't a perfect comparison, but the previous set (same size, same wheel width, same offset) still did similar sessions on the front + additional sessions on the rear, and still isn't worn through.

What is your rear alignment set too?

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