Originally Posted by Twibs415
(Post 1511344)
Didn’t Danny George bring his drift miata to slb a few years ago and not do all that great? Anyone know the approximate weight snd power of that thing? Weight had to be around 2300lbs I'm guessing and maybe between 450 and 550whp if I had to guess? He was on 17" wheels with Hankook TD's and was wheeling it halfway decent. I had a media pass that year and was on the infield for most of the day. Actually have footage of him getting air over the hump after grapevine. |
Originally Posted by doward
(Post 1511296)
They lose six seconds on the straights and make up two in the corners.
If anyone's seen the video of Cleetus's C5 kart in the windtunnel, it completely agrees with E and doward. Aero (or the lack thereof) over 100mph is no joke. |
We're having a customer picking up his car tomorrow from the shop, an LS3 swapped car with some good stuff in it.
I'll try to put it on the scales before it leaves, but that thing has much of the right stuff - built LS3 that should put down ~550 WHP, 20 point cage, lightened chassis, Penske DAs copied from my car, decent aero with DRS. Driver is intermediate so there will definitely be a learning curve there, but I am looking forward to see what this baby can do, might jump behind the wheel for a few laps if i want to scare myself :giggle: I'll post pics soon. |
Originally Posted by Supe
(Post 1511298)
Not really. If you look at OEM 6 speeds, sure. But Tex/Jerico/TKO options are all under 95# dry weight to my knowledge.
Originally Posted by Blackbird
(Post 1511347)
We're having a customer picking up his car tomorrow from the shop, an LS3 swapped car with some good stuff in it.
I'll try to put it on the scales before it leaves, but that thing has much of the right stuff - built LS3 that should put down ~550 WHP, 20 point cage, lightened chassis, Penske DAs copied from my car, decent aero with DRS. Driver is intermediate so there will definitely be a learning curve there, but I am looking forward to see what this baby can do, might jump behind the wheel for a few laps if i want to scare myself :giggle: I'll post pics soon. Let's take a scenario on paper: Say 949 looses their mind and for some stupid reason listens to me, and they swap in an bolt-on, E85 LS7 into Vegas and gain 100 pounds and make around the same HP with similar area under the curve. I would venture to say I would almost guarantee lap times would drop due to two different factors: A. NA powerband with no turbo lag up to 7,100 rpm+ (8K with valves) might make the car exceedingly easy to drive (like a beefed up LFX car) B. With reliability concerns out the window, the little time you have on time attack days can be better used to fine tune the suspension/aero/brakes rather than worrying about powertrain issues Just my train of thought. It's all just theory-crafting since nothing like this has been done at this high of a time attack level before. |
LS7 has oiling issues and even with the factory dry sump tend to grenade themselves every now and again, so reliability concerns are definitely not out the window.
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Originally Posted by moocow
(Post 1511346)
So it out Miata's a Miata? What's not to like? :giggle:
If anyone's seen the video of Cleetus's C5 kart in the windtunnel, it completely agrees with E and doward. Aero (or the lack thereof) over 100mph is no joke. |
Originally Posted by Blackbird
(Post 1511347)
We're having a customer picking up his car tomorrow from the shop, an LS3 swapped car with some good stuff in it.
I'll try to put it on the scales before it leaves, but that thing has much of the right stuff - built LS3 that should put down ~550 WHP, 20 point cage, lightened chassis, Penske DAs copied from my car, decent aero with DRS. Driver is intermediate so there will definitely be a learning curve there, but I am looking forward to see what this baby can do, might jump behind the wheel for a few laps if i want to scare myself :giggle: I'll post pics soon. Removing passenger safety bits probably saves ~35 lbs, so in competition it'll probably be a 2340 Lbs car. |
In regards to Vettes doing well at GTA/GL:
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JFC, I can't imagine feeling comfortable touching nearly 150mph on track without a cage, HANS, etc.
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Originally Posted by z31maniac
(Post 1511559)
JFC, I can't imagine feeling comfortable touching nearly 150mph on track without a cage, HANS, etc.
He's trail braking into T1 getting the rear light and almost running out of room and that's not a fun place to go off. But then he's braking early for 10a and going slower through 10a than he obviously could. I was afraid of that track last time I was there. I'm out of practice and/or my balls are shrinking with age. |
Originally Posted by ThePass
(Post 1511266)
A Corvette is certainly an easy button to serious speed. However, no car is a guaranteed winner. There was a Corvette in LRWD at this SLB... Ultimate Street Car Challenge competitor, presumably well set up, nowhere near the podium. That said, the LRWD record at Buttonwillow is held by a Corvette, so you know it could get up there.
Looking at results from the last two years of GTA at Road Atlanta... several Corvettes attended in various classes. Only one made it on a podium (2nd place). |
Originally Posted by flier129
(Post 1511429)
In regards to Vettes doing well at GTA/GL
Yeah. Not good. You're reinforcing the point lol. That is like 6 seconds off the record pace of Limited class times at GTA. Which is almost a direct crossover for Track Mod. |
Originally Posted by Arca_ex
(Post 1511596)
Yeah. Not good. You're reinforcing the point lol.
That is like 6 seconds off the record pace of Limited class times at GTA. Which is almost a direct crossover for Track Mod. Never the less, did you watch the same video I did? He's obviously wheeling that thing pretty well. He also gives no fucks in several departments. Big balls plays a big role at Road Atlanta. |
He is wheeling it that's for sure, but it's not exactly a fast lap... So many mistakes and overdriving. Still better than most who don't even try but yeah, realistically it's not that great.
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Welp, don't want to derail the thread any further, lol.
I'll end my comments on it with....3350lbs, 380rwhp, oem aero, 100tw 275 Goodyears. Bad lap for track mod, good lap for street mod, great lap for that car. |
Jeez you guys, give it a rest with the V8 stuff....949 / Trackspeed etc is much more valuable to us in a BP than any one off Miata lap records with a v8.
As I pretty much follow their leads, simply cant afford a LS swap if 949 and Trackpseed get the v8 bug. Im hoping they crack the reliability factor for a BP runing 450 whp soon :) (if a 1600 can do 380 .....wasn't so long ago the challenge was on for a 1600 to crack 300!) |
Originally Posted by Blackbird
(Post 1511385)
LS7 has oiling issues and even with the factory dry sump tend to grenade themselves every now and again, so reliability concerns are definitely not out the window.
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I've read quite a bit about the track oiling issues on LSx motors and saw my own anecdotal evidence this summer. One of our regular track attendees (usually running in the Time Attack group) has a beautiful FD with LS swap (caged, well-developed aero and CF bits). He's an excellent driver with a very fast car that typically takes FTD. In the middle of the season, his engine made the expensive smoke and he trailered it home. I haven't talked to him about the outcome yet, but I have a pretty good idea he experienced the inevitable oil starvation issue.
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Yep, true dry sump is the only way to really run them on track. The ls7's isn't a true dry sump either.
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