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Quote:

Originally Posted by TrackMuscle (Post 678579)

What is the total weight of the car wet with no fuel? And as Pappy asked above, any ABS?

If it was a "Race Only Car" we would build everything on the edge of being too light & constantly inspect, repair & replace ... and it would be 2400#. We're building this to be Greg's "Track Car" that he races in NASA's TTU class some. So we built it much more durable ... and safer. It will be about 2600#-2650#.

:cheers:

Quote:

Originally Posted by craig510 (Post 678580)

Please keep an eye on the T/C Rods on the lower control arms. The bend in them makes me nervous. They will be under compression under braking which puts a large bending moment on them and they are pre-yielded from the bending process.

With enough wall thickness and yield strength they could be fine but it is something to watch. If you have trouble with your caster alignment changing they could be bending further.

Hey Craig! You are spot on correct. As you know, any time you pre-bend a tube, you make it more susceptible to bending easier. So you have to make it beefier or brace it.

We ran FEA analysis on these arms before we ever made any, just like I do with all my control arms. We build that curved strut (and the main LCA) out of 1.25" OD x .120" wall 4130 tubing. At 1.7G we have a 1.69 safety factor. We have had 1 or 2 DIY customers use .095" DOM, against our advice. They failed. That curved tube HAS to be strong.

:cheers:

Ya but.......... how are we going to slow it down!?!?! LOL

Quote:

Originally Posted by Ron Sutton (Post 678592)

So what you’re sayin is if he lays off the cheese balls he’ll even be faster?? :popcorn2:

Quote:

Originally Posted by Ns RS (Post 678615)

So what you’re sayin is if he lays off the cheese balls he’ll even be faster?? :popcorn2:

:lol: Nope. Greg's pretty light these days.

But learning how to drive one of these missiles takes a minute or two. (That's my slang for "awhile") The car will have so much downforce, the grip is amazing in the fast corners. It is confidence inspiring for sure. But the driver has to be smooth with the steering wheel & pedals, or you upset the air.

If the driver upsets the airflow over the car/splitter/wing/etc ... the downforce & grip evaporate for a bit. :drive::brix:

So with high downforce cars you, or in this case Greg, need to work up to the limits a small step at a time. The car will be EASY to drive high 1:50's at Thunderhill (with Crows Nest). Mid 1:50's take concentration, but is still pretty comfortable. Low 1:50's take a lot of experience & skill. The driver has to hit their braking points the same every time, hit their turn in marks exactly the same every time & be smooth as glass with the steering wheel, as well as the throttle & braking.

That simply takes lots of seat time to achieve. Some drivers learn it in a year or two, some ten years & some never.

Most of you know I've worked with some pretty good talent. 413 of my wins were someone other than me driving. Greg has proven to be a very coachable & capable driver. Back when we first worked together in Old Yeller ... it was F&%$ing handful. His buddies were running 2:10's to 2:12's. Old Yeller's rear brakes had more force than the fronts. Greg was running 2:22's without spinning out and trying to go faster led to spin outs.

Once I got the brake bias right, so the car wasn't trying to kill him, he & I worked on his driving. Man! Did he improve a ton in one weekend. Once we fixed the brake bias, Greg worked his way all the way down to 2:08 to 2:10. Now Greg runs 2:04's in the car with improvements we made. 1:50's is another time zone.

Looking forward to our shake down of the Mustang on June 28th. We'll post photos.

Hey Greg deserves more credit for how hard he has worked at becoming a better driver and how good he actually is after a relatively short time.

OY is one hell of a car but it can be a handful at it’s limits and Greg takes it there often and successfully wheels it.

It’s just that he is such a prick that it’s hard to give him the credit he is due. :lmao:

Quote:

Originally Posted by FETorino (Post 678622)

It’s just that he is such a prick that it’s hard to give him the credit he is due. :lmao:

Pot meet Kettle

Quote:

Originally Posted by FETorino (Post 678622)

True

Quote:

Originally Posted by 57hemicuda (Post 678623)

Pot meet Kettle

Haha. True.