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Congrats and thanks for sharing! Great to have another Viper out there turning laps though I can understand the desire for an NP01. I was thinking the same thing at one point.
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Awesome driving dude! Not much feels better than snagging a Nasa track record. It takes a lot of hard work, planning, timing, perfect weather, perfect luck, the stars have to align. LOL
I think the ACR in TT2 is a great idea, especially on faster tracks than this. You’ll have way more top end than any other TT2 car. Kevin Burke is tearing it up in TT2 as well with a Gen 4 ACR that he added a little weight to and running street tires as well. (For people that don’t know, in TT2 street tires give you credit back to your horsepower to weight ratio, so you can be running more power)
What was your HP average for your classing sheet?The most obvious place I can see where you still have some time to gain is through the 9A/9B area, you are still braking too early there and you could be on full throttle sooner before turn 14 area and carry it through 15.
Awesome work! What’s the next track you are doing? -
The average HP is 513. So I need to be over 3601# for TT2. I really don’t like using the fuel as ballast, and that could change. I will be adding the TKO camber plates and I received a Coolshirt Clubbag for fathers day, so between those, it will add enough weight to allow me to run with less fuel I think. May even think about going with a Tillet B6/B7 and then adding the needed ballast back into a better location. I will say I received a lot of unhappy looks and even had 1 person walk to me while in tech inspection to dispute my car’s weight and the tires. And you are right, I need to push more in 9a/b.
The next event is at Pueblo Motorsports Park. I’ve only been there once in the viper and need to learn the line. I think on the Friday before the event I am going to follow LuvSpeed around the track and get a better feel. He is good there. TT2 record there was set back in July of 2015, 1:36.109. It shorter track, but the main straight starts right at the drag strips burnout box and runs the entire way down. It has a really solid sequence with a blind corner leading into a hard braking zone. Looking forward to getting it figured out.
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jrubin80 said:
The average HP is 513. So I need to be over 3601# for TT2. I really don't like using the fuel as ballast, and that could change. I will be adding the TKO camber plates and I received a Coolshirt Clubbag for fathers day, so between those, it will add enough weight to allow me to run with less fuel I think. May even think about going with a Tillet B6/B7 and then adding the needed ballast back into a better location. I will say I received a lot of unhappy looks and even had 1 person walk to me while in tech inspection to dispute my car's weight and the tires. And you are right, I need to push more in 9a/b.The next event is at Pueblo Motorsports Park. I've only been there once in the viper and need to learn the line. I think on the Friday before the event I am going to follow LuvSpeed around the track and get a better feel. He is good there. TT2 record there was set back in July of 2015, 1:36.109. It shorter track, but the main straight starts right at the drag strips burnout box and runs the entire way down. It has a really solid sequence with a blind corner leading into a hard braking zone. Looking forward to getting it figured out.
Pin that 1.36.109 on a sticky now and put on your computer monitor! LOL
I’ve been reasearching cooling systems for awhile now and think I’m going the same route, the Clubbag. It’s the lightest way to go, I already bring an ARB freezer to the track so will just throw a bunch of those CoolBags in it.
Have you done Utah Motorsports Campus yet? Nasa nationals was going to be there last year, but was cancelled due to Covid. I was registered. -
Awesome to hear! Congrats on the new record!
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I keep all the regional lap records on a white board in garage actually. And hopefully will cross off 2 more this season. I just filled the clubbag up 3/4 with water and 1 freezable bag, and got 13.7 lbs when I weighed it. So I think you are right, that is the lightest option. And for TT, honestly it only needs to last for those 5-7 minutes in grid and 8 minutes on track, so I bet you can get it down to 10lbs and 1/2 full and the pump still work good.
Assuming Pueblo goes fine, we have a crossover event with Utah July 30-Aug 1st, Outer Loop. Looks like big power and aero may do well here. TT2 record is 1:57.7 and in case you are going, TTU looks like 1:49.105, I believe in a Norma.
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Great run!
I looked up on the NASA time trials table because I thought for sure there’s no way you could average 513rwhp haha That’s amazing.
It did give me a great idea though, I can lower my rev limiter and probably jump back into TT1 without a loss of power. I peak rwhp then two points on the graph out of the other 5 used are above my peak horsepower in rpm but only 4-7 rwhp less than my peak.
I love High Plains. If it wasn’t for my 8 year olds birthday party, I would be headed that way in August for the 14th/15th event.
You need to try and make it out to the Heartland Park event in Topeka, KS on October 23/24th. There is some REALLY good TT2 competition in the Central Region. Brad Perkins in his BMW slaughters people haha
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^^^^
After careful review, I can lower the rev limiter to 5550 rpms and achieve what I was looking to do, however vehicles that redline at less than 6000 rpms NASA requires you to use 4 data points rather than 6, so it wouldn’t benefit me any haha Worth a shot, and thanks for the idea.
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13COBRA said:
I love High Plains. If it wasn't for my 8 year olds birthday party, I would be headed that way in August for the 14th/15th event.You need to try and make it out to the Heartland Park event in Topeka, KS on October 23/24th. There is some REALLY good TT2 competition in the Central Region. Brad Perkins in his BMW slaughters people haha
I will be at the Hastings Event, and I believe Josh will too. Coming to that event?
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jrubin80 said:
Topeka in October sounds awesome. That could be a good possibility. Just pulled up Brad Perkins' dyno chart, that's some smooth power delivery.Yes it is. He’s a really good driver too. Car has crazy aero. Super nice dude, incredibly competitive. October at Heartland will be nice and cool and there are always fast times set.
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Ran my first NASA Rocky Mountain event of the season this weekend. It was good to get to an event as I have spent the last 8 weeks waiting on a windshield to show up so I could pass tech inspection. It caused me to miss 2 NASA events and Rendevous. Coming into the weekend my previous best lap time on this setup was 1:56.43, but I have been spending a lot of days working on a particular couple of segments to get that down. Friday practice I had begun putting in consistent high 1:55s, and knew I just needed to follow the same advice I have seem by the other Time Trial guys here in the forum and trust the aero and the car. Saturday morning, we had our early warmup @ 8am to set the grid for first TT session. Could not get into a good flow and came off with a 1:58 flat, good enough for 3rd overall on grid.
First TT session I just said screw it and pushed in the places I have been worried, mainly turn 4 and 9a and 9b. The car just did its job, it stuck like I had not felt before. Came off after 4 laps with a 1:55.619, which ended up being 3rd overall and first in TT2, and my fastest lap ever. More important, I knew that if the weather was right, and the tires held, that the TT2 record was within reach, because I could see where I was losing time. I ran a couple more sessions, but as always, nothing ever compares to that first TT session.
Sunday morning, the grid was based on previous days finishing, so I would start 3rd. As luck would have it, the person in front of me in TTU was not there, and the person in front of me that runs a big power GTA M3 showed up to grid with no driver’s door and was sent back to puts to add a door, so I had zero traffic on front of me, with a outside temp of around 65 degrees. I decided to push harder than Saturday and see what I had. I tried to not change line at all from previous runs and just push a little harder. I had set the pressures on the Toyo Proxes RR to what I knew would give me max grip for 1-2 laps and would then be too squirrely for a quick lap. Pulled out a 1.54.675 according to transponder, and a new TT2 lap record. The old record was 1:56.715 and was set by an NP01 back in 2016. That number has been on a white board in my garage and in my office the last month, just as a reminder.
In case anyone is wondering on how exactly it fits into TT2. It is an ACR-E, running Toyo Proxes RR with 315 in front and 345 in the rear, on a set of Forgelines I picked up from Nineball, 18×13/18×12 setup. Girodisc steel conversion, 2.5lb extinguisher with DSE mount. Everything else is dead stock, still need to add the DSE heat shield I have sitting in garage. With 5/8 tank of fuel and me, the Vbox HD2, and the Garmin Catalyst, we weigh in at 3628, so 27 lbs over my minimum weight.
Please excuse the wind noise, its bad at parts, but I am going to test new mic locations out soon. I know I have at least another second, I can trim off this time from places I am over slowing, so maybe in the October event I can get down in the 1:53’s. The posts from 13Cobra, Arizona, and all the other track rats really motivated me to push harder. And before this weekend I was in process of ordering an NP01 as a track, this new record has shut that thinking down.
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