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MSR 1.7 Lap Times


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397 replies to this topic

#381
BigMonkey73

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New personal best for me! This was at SCCA Track Night In America.

 

1.7 CCW Lap time: 1:26.487

Date: May 8, 2018
Car: 2012 Corvette
Weight with driver: ~3500 lbs
RWHP: Est ~375 (Stock)
Tires: NT01 Stock Sizes
Estimated temp: ~85F
 

5af3339916f7e_32104658_10156300399621737
 

Unfortunately I was using a new camera and didn't set it up properly to get good video with data overlay. Lots of wind noise, video cut into segments during sessions. Next time I hope to grab some good footage.

 



#382
Kenny_S2K

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I also set a personal best at the same event.

 

1.7 CCW Lap time: 1:27.205

Date: May 8, 2018
Car: 2006 Honda S2000
Weight with driver: ~3000 lbs
RWHP: Est 404 
Tires: 255/40/R17 Hankook Ventus TD C30 "Hard Compound"
Estimated temp: ~85F
 


#383
z28pwr

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1.7 CW Lap time: 1:28.56
Date: June 9th, 2018
Car: 2006 Miata
Weight with driver: ~2,700lbs
RWHP: Est 145
Tires: 245/40/R17 RE71R
Estimated temp: ~90F

 

 


Straight roads are for fast cars, curvy roads are for fast drivers!


#384
hornetball

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Pretty good with the heat.


Silver 90 1.6L Turbo Miata (Greddy + MSPNP, Cowl Induction, FCM) (Build Thread)
Red 95 1.8 Miata (949 Racing 95R Project Emulation) (Build Thread)


#385
BigMonkey73

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My new PB for CW! Apologies for the horrid sound. I need to bring my camera inside the car...terrible wind noise.

 

1.7 CW Lap time: 1:28.628
Date: June 9th, 2018
Car: 2012 Corvette
Weight with driver: ~3,500lbs
RWHP: Est 375
Tires: Stock sizes NT01

Estimated temp: ~90F 

 



#386
Greg S

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Date: March 10, 2018

Car: 1999 323i/ GTS2

Track: MSRC 1.7 CCW 
Lap time: 1:20.207(Foss' GTS2 lap record is a 1:20.168)

Weight with driver: 3000lbs

RWHP: 207

Tires: Hoosier 

Estimated temp: don't remember 



#387
EricH

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  • Track Vehicle:'08 Exige-S 240

Date: 2017
Car: 2008 Lotus Exige-S 240
Track: MSRC 1.7 CCW and CW

Weight with driver: ~2255lbs

RWHP: 238 (ha, only if IAT <100degF)

Tires: Hoosier R7  F: 205/45-16  R:225/40-17

Timer: AiM SOLO DL with Smartycam v2.1

 

Car Modifications:
         Wheels - F:16x7 R:17x8
         Additional ~-1deg camber in front
         Ohlin coil overs with Lotus Cup car valving and springs
         BWR Sway bar
         Homemade front splitter (simply got tired of replacing factory one)
         Traction control off.  No stability control.  ABS on.
       

MSR-C 1.7 CCW - On vid @00:07
  Counter Clockwise direction (normal)
  Two heat cycles on tires
  ~73deg F   
  Lap time: 01:21.806

MSR-C 1.7 CW - On vid @01:42
  Clockwise direction (backwards)
  13 heat cycles on tires
  ~60deg F
  Lap time: 01:21.855
 



#388
joesurf79

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    move the barrels.

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Date: 7/7/2018
Car: 2016 Subaru BRZ
Track: MSRC 1.7 CCW
Weight with driver: approx 2800 lbs? Need to weigh it again.
RWHP: No real idea, what ever headers and a tune on 93 octane results in ;)

Tires: 255/40 x 17" Maxxis RC-1 on their 5th weekend. They seemed to take a while to get sticky this weekend.

Timer: AiM SOLO2 DL

Best lap: 1:26.00

Excited to finally be timing my laps! Working on video sync, etc. Coming soon :)

#389
clifton23

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Date: July 7th, 2018
Car: 1999 BMW M3
Track: MSRC 1.7 CCW 
Lap time: 1:24.41 (Harry's Laptimer with 10hz External GPS)
Weight with driver: 3175lbs
RWHP: ??? (relatively stock 170k mile s52)
Tires: NT01s
Estimated temp: HOT AF (97F)


#390
joesurf79

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    move the barrels.

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Date: July 7th, 2018
Car: 1999 BMW M3
Track: MSRC 1.7 CCW 
Lap time: 1:24.41 (Harry's Laptimer with 10hz External GPS)
Weight with driver: 3175lbs
RWHP: ??? (relatively stock 170k mile s52)
Tires: NT01s
Estimated temp: HOT AF (97F)


You gotta show me where in giving up that 1.6 seconds amigo;) Next time !

#391
BRZ4Science

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You gotta show me where in giving up that 1.6 seconds amigo;) Next time !

 

If you want to exchange AIM data, I can send you some. I've only been running my Falken Azenis 615k+ since I got my AIM, so the fastest AIM data I have is a couple of 1:25.4s (I've done a 1:24.6 on RE71r's).

 

I have all my video's on youtube, so you can look at the data and the video (I have some data on the videos: speed, g forces, rpm, lap times, and braking). Our car's are pretty much identical, so the info should be about the best apples to apples comparison you'll get.



#392
joesurf79

joesurf79

    move the barrels.

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If you want to exchange AIM data, I can send you some. I've only been running my Falken Azenis 615k+ since I got my AIM, so the fastest AIM data I have is a couple of 1:25.4s (I've done a 1:24.6 on RE71r's).

 

I have all my video's on youtube, so you can look at the data and the video (I have some data on the videos: speed, g forces, rpm, lap times, and braking). Our car's are pretty much identical, so the info should be about the best apples to apples comparison you'll get.

 

Hey Sam! I'm still working through the Houston Data you gave me - I still need to send you mine, I'll get on that and shoot it to you this week. I'm figuring out the Aim Software interface slowly but surely :) I'll look for those videos too, thanks!



#393
mjanmohammad

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Date: September 18 2018

Car: 1991 Miata
Track: MSRC 1.7 CCW 
Lap time: 1:38.29 (Harry's)
Weight with driver: ???
RWHP: 100% Stock NA Miata
Tires: Hankook Ventus V2 All Seasons
Estimated temp: 90-97F
 


#394
El_Tortuga

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MSR-C 1.7 CCW
Date: 11/19/18
Lap time: 1:22.862 (AIM)
Car: 2014 Mustang GT, daily driver mild
Total vehicle weight with driver: 3950(ish) lbs
Wheel horsepower: 365-385 est
Tire size and model: 305/30/18 Hankook RS-4s
Estimated ambient temperature: 40 degrees, overcast

 

Started off the day with a flat tire. Doh! Missed the first session and the Doghouse folks put in a plug (for free). So when I got on track in the second Red session it was ideal. I've been flirting with 22s for a while and here we are.Not bad for a stock power daily on softish Konis and lowering springs.  Kinda lost my focus when the 22 hit the timer. You can faintly hear me urging it on. About 1.25 seconds off of theoretical time so more to be had. E.g. better in the rattlesnake twisties, later brake and more trail into Little Bend, later turn-in and a little more speed in Buzzards Neck and Big Bend, etc.

 

The 305 RS-4s are down a bit of grip vs the 315 Falken K+s but they are still great and are wearing very well. 6-piston Brembos rock. Had a lot of fun in later sessions chasing cars faster than I should have. Well, it was fun until the clutch went pow. The clutch disc spring retainer plate turned one spring loose (the other 3 were cracked too). After quite a bit of confusion (was advised shifter forks) and erratic behavior we put it on a buddies Miata trailer (yikes). Made it to Baca Diesel in Ft Worth by 5PM Monday. Got quick diagnosis and parts ordered that night. They knocked it out in a flash, and it was back together by 2-230 on Tuesday. Trying to accumulate break-in miles before next weeks TT on the 1.3.

 

As always a work in progress.

 

 

Once again, I screwed the GoPro video. Forgot to put the battery back in, so its spliced together dashcam video.

https://youtu.be/VPDo1Y0KuY4

 

Similar lap (1.23.08) from inside the car later.

https://youtu.be/vCHSjgecE2k



#395
JBJones

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MSR-C 1.7 CCW
Date: 11/23/18
Lap time: 1:16.896 (AIM)
Car: 2013 Scion FR-S setup to NASA TT4
Total vehicle weight with driver: ~2770 lbs w/ driver and fuel load of this run
Wheel horsepower: 230WHP AVG
Tire size and model: 245/40/17 Hoosier R7s (12th heat cycle)
Estimated ambient temperature: 55 degrees, windy

 



#396
BobKid

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MSR-C 1.7 CW
Date: 12/1/18
Lap time: 1:25.74 (AIM)
Car: 2001 BMW Mcoupe
Total vehicle weight with driver: ~3200 lbs w/ driver and fuel load of this run
Wheel horsepower: 300WHP AVG
Tires: Last gasp NT01s, cords weren't showing yet, but they're toast after this session
Estimated ambient temperature: 65 degrees, windy.
First time CW direction since I was a newbie green and have lots of learning still to do. Braking way too early and hard, but at least that gets me back on the gas early too.

 



#397
BRZ4Science

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MSR-C 1.7 CW
Date: 12/1/18
Lap time: 1:27.0 (AIM)
Car: 2014 Subaru BRZ
Total vehicle weight with driver: ~2900 lbs w/ driver 
Wheel horsepower: 178WHP 
Tires:  255/40-17 Hankook RS4
Estimated ambient temperature: 60 degrees, windy. 

 

I actually managed to match this time with a ~110lb passenger later in the day, so I know I picked up time or at least would have without the ballast. 

 



#398
pmptx

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She wasn't more than 105.... :ohmy:

MSR-C 1.7 CW
Date: 12/1/18
Lap time: 1:27.0 (AIM)
Car: 2014 Subaru BRZ
Total vehicle weight with driver: ~2900 lbs w/ driver 
Wheel horsepower: 178WHP 
Tires:  255/40-17 Hankook RS4
Estimated ambient temperature: 60 degrees, windy. 

 

I actually managed to match this time with a ~110lb passenger later in the day, so I know I picked up time or at least would have without the ballast.